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19-100188 (3)
1—� `k CITY OF Federal Way Centered on Opportunity July 18, 2019 Mr. Ray Vefik CBRE/Heery 1420 5Th Avenue, Suite 1700 Seattle, WA 98101 rvefik@&Ms.or Re: File #19-100188-00-UP; USE PROCESS III "PROJECT APPROVAL" Mirror Lake Elementary School, 625 South 314th Street, Federal Way Dear Mr. Vefik: CITY HALL 33325 8th Avenue South Federal Way, WA 98003-6325 (253) 835-7000 www. cityoffederalway. com Jim Ferrell, Mayor FILE The City of Federal Way has completed the administrative review and hereby issues conditional approval of the proposal to construct a new Mirror Lake Elementary School west of the site of the existing elementary school, with the old school demolished and site improvements completed once the new school is occupied. The Process III Master Lane Use (MLU) application submitted on January 10, 2019 (with revisions resubmitted on February 12, April 4, May 28, June 24, and June 26, 2019), is hereby conditionally approved per the enclosed Findings for Project Approval (incorporated into this decision in full), and the following conclusions based on those facts: 1. The proposal is consistent with the comprehensive plan; 2. The proposal is consistent with all applicable provisions of Federal Way Devised Code (FWRC); 3. The proposal is consistent with the public health, safety, and welfare; 4. The streets and utilities in the area of the subject property are adequate to serve the anticipated demand from the proposal; 5. The proposed access to the subject property is at the optimal location and configuration; and 6. Traffic safety impacts for all modes of transportation, both on and off site, are adequately mitigated. The remainder of this letter outlines the land use review process required for this particular site improvement; summarizes the State Environmental Policy Act (SEPA) process; lists conditions of the land use decision; and provides other procedural information. This land use decision does not authorize initiation of construction activities. Mr. Ray Vefik Page 2 of 4 July 18, 2019 REVIEW PROCESS The site is located in a Single Family Residential (RS7.2) zoning district. School uses are permitted in the zone subject to Federal-Wlay•Revired Code (FWRC) 19.200.090. The school use is reviewed through Process III, Project Approval, in conjunction with environmental review under the State Environmental Policy Act (SEPA). The Director of Community Development makes a written decision on the application based on the criteria listed under FWRC 19.65.100. Project approval does not grant license to begin any type of site work. SEPA PROCESS The responsible official at Federal Way Public Schools (FWPS) issued a Mitigated Determination of Nonsignificance (MDNS) for the school rebuild proposal on January 10, 2019. The appeal period for the determination ended on January 28, 2019. Subsequent addendums to SEPA were issued on April 3, 2019, with no corrections to the initial determination. CONDITIONS OF APPROVAL The following conditions are reasonably necessary to eliminate or minimize any undesirable effects of granting application approval. 1) Prior to issuance of the Certificate of Occupancy, the applicant shall provide a written commitment signed by the school superintendent that confirms removal of the existing elementary school within one year of the issuance of the Certificate of Occupancy of the new school. 2) Prior to any grading, excavation, or earthwork activities that disturb on -site soils, remediation of impacted soils under PBS's supervision is required. 3) Prior to issuance of a Certificate of Occupancy, confirmation sampling that soil samples within decision units 2 and 3 are below MTCA Method A Cleanup Levels (CULs) is required. 4) The construction trailers must be located outside the sight distance triangle and removed from the property within six months after the issuance of the Certificate of Occupancy of the new school. 5) Prior to issuance of Certificate of Occupancy, FWPS must sign and record the Stormwater Declaration of Covenant. 6) Prior to the issuance of a Temporary Certificate of Occupancy, or Certificate of Occupancy, all frontage improvements shall be constructed, inspected, and accepted by the city. Acceptance includes submission of an As -built Drawing, as defined in Section 1.2 of the Public Works Development Standards, for review and approval. 7) Prior to permit issuance, the applicant shall design and resubmit the intersection improvement plan for review and approval by the city. The improvement must be constructed prior to any use by school busses under either a Temporary Certificate of Occupancy or Certificate of Occupancy. 8) Prior to permit issuance, the new raised crosswalk shall be designed and submitted for review and approval. The improvement must be constructed prior to the issuance of the Certificate of Occupancy. 19-100188-00-UP Doc. 1.D. 79229 Mr. Ray Vefik Page 3 of 4 July 18, 2019 9) Prior to permit issuance, the street light plan must be designed and submitted to the city for review and approval. The improvement must be constructed prior to the issuance of the Certificate of Occupancy. 10) The June 26, 2019, memorandum prepared by FWPS shall be implemented at all times, and signage informing drivers of the restrictions shall be maintained. The restrictions are as follow: • Before school starts, staff is contracted to arrive at least 30 minutes before school buses arrive. • After school, staff is contracted to leave 30 minutes after school buses leave. • For the rare condition where staff will have a conflict with school buses, the staff is required to use a different parking lot. • FWPS will provide training as needed to the Mirror Lake staff and FWPS Transportation. BUILDING PERMIT REQUIREMENTS This Process III land use decision does not constitute a building permit, or authorize clearing/grading activities. The associated building permit application (19-100960-00-CO) is currently under review. Any changes as a result of the Process III approval must be reflected on the submitted building permit plans. If you have any questions regarding the building permit review, please contact the Permit Center at 253-835- 2607, or permitceuter(iDcjWoffederalwa .cam. REQUESTS FOR CHANGE OF VALUATION Per FWRC 19.65.100(4)(i), affected property owners may request a change in valuation for property tax purposes, notwithstanding any program of revaluation. APPROVAL DURATION Per FWRC 19.15.100(2), unless modified or appealed, the Process III decision is valid for five years from the date of issuance of the decision. Time extensions to the decision may be requested prior to the lapse of approval following the provisions listed in FWRC 19.15.110. The improvements must be substantially completed within the five-year time period, or the land use decision becomes void. APPEALS Per FWRC 19.05.360, the effective date of issuance is three calendar days following the date of this letter, or July 21, 2019. Pursuant to FWRC 19.65.120(1), this land use decision may be appealed by the applicant, any person who submitted written comments or information, or any person who has specifically requested a copy of the decision. In compliance with FWRC 19.65.120(2), any appeal must be in the form of a letter delivered to the Community Development Department, with the established fee, and within 14 days after the effective date of issuance of this decision, or August 5, 2019. The appeal letter must contain a statement identifying the decision being appealed, along with a copy of the decision; a statement of the alleged errors in the director's decision, including identification of specific factual findings and conclusions of the director disputed by the person filing the appeal; and the appellant's name, address, telephone number, and fax number, and any other information to facilitate communications with the appellant. The Federal Way Hearing Examiner will hear any appeals of the Process III decision. 19-100188-00-UP Doc. I.D. 79229 Mr. Ray �Tefik Page 4 of 4 July 18, 2019 CLOSING This land use decision does not waive compliance with future City of Federal Way codes, policies, and standards relating to this development. If you have any questions regarding this decision, please contact Senior Planner Becky Chapin at 253-835-2641, or beck; .chapinQcirvoffederalN-,,ay.com. Sincerely, Brian Davis Community Development Director enc Exhibit "A" Findings for Project Approval Approved Plans c: Becky Chapin, Senior Planner Cole Elliott, Development Services Manager Sarady Long, Senior Transportation Planning Engineer Brian Asbury, Lakehaven Water & Sewer District Chris Cahan, South King Fire & Rescue Mike Benzien, Federal Way Public Schools, mbenzien@fwps.org Casey Moore, Federal Way Public Schools, cmoore@fwps.org Sam Schafer, Integrus Architecture, sschafer@integrusarch.com 19-100188-00-UP Doc I.D. 79229 CITY OF"'-" Federal Way Exhibit A Findings for Project Approval Federal Way Revised Code (FWRC) Chapter 19.65, "Process III Project Approval" Mirror Lake Elementary School, File # 19-100188-UP Tate Director of Community Development hereby makes the following findings pursuant to content requirements of the Process III written decision as set forth in Federal Way Revised Code (FWRC) 19.65.100(4). These findings are based on review of existing city documents and items submitted by the applicant and received January 10, 2019, and resubmitted April 4, 2019, May 28, 2019, June 24, 2019, and June 26, 2019. 1. Proposal— The Federal Way Public School District (FWPS) proposes to demolish the existing one-story Mirror Lake Elementary School and construct a new two-story elementary school located at 625 South 314th Street, parcel number 082104-9035. Site improvements, landscaping, parking, stormwater, and street improvements are included. 2. Exidng Site Conditions —The site is approximately 362,855 square feet (8.34 acres) with single-family residences to the south and west, South 312th Street to the north, and 6th Avenue South to the west. The site is currently occupied by the existing one-story, 45,843 square foot school building, seven portables, and other ancillary site features, including a play area and field. The site is a relatively flat, with a slight slope from northeast to southwest, with an approximate elevation change of 24 feet. 3. Zorrisr,g and C¢mprahensiue Plan Desi�natiarr — he Federal Way Comprehensive Plan (FWCP) designation for the subject property is High Density Single Family Residential. Zoning for the subject property is Single Family Residential (RS7.2). A school is a permitted use in the R.S7.2 zone pursuant to FWRC 19.200.090. 4. Review Pmcas — The project requires review under Process III, Projea Approval The Director of Community Development makes a written decision on the application based on the criteria listed under FWRC 19.65.100. Appeals of the director's decision are conducted by the city's Hearing Examiner. 5. State Environmental PoligAd (SEPA) The proposed improvements exceed categorical exemptions adopted by the city's environmental policy codified in FWRC 14.15.030(c), and therefore require an environmental threshold deternnination prior to any land use or building permit approval. FWPS acted as lead agency and issued a Mitigated Determination of Nonsignificance (1vMNS) on January 10, 2019. The final evaluation by FWPS for the environmental checklist, submitted to the City of Federal Way on January 10, 2019, and subsequent addendum, issued on April 3, 2019, is hereby incorporated by reference as though set forth in full. 6. Public Notice — Pursuant to Process III regulations, a Notice of Land Use Application (NDA) was published in [he Fedeml Way Mirror; posted on the subject property, and displayed on the designated city notice boards on February 15, 2019. A notice was also mailed to property owners within 300 feet of the subject property and emailed to agencies. No comments were received on the application. 7. Bulk & Dimensional Requirements —The proposed new school building is subject to the following required yard, height, and lot coverage standards set forth in FWRC Use Zone Chart 19.200.090. Required Yard— is 50 feet in the front; 50 feet on the side; and 50 feet on the rear. All setbacks are satisfied. Lot Coverage — The maximum lot coverage is 75 percent. The proposed school indicates 45.3 percent of impervious coverage, which is below the maximum lot coverage allowed. Height— The maximum height allowed for this use in the RS zone is 55 feet above average building elevation (AABE) for gyms if located 100 feet or more from an adjacent residential zone and 30 feet AABE for all other structures. For all structures except gyms, if the structure is located 100 feet or more from an adjacent low density zone, the maximum height may be increased from 30 to 40 feet if all of the following criteria are met: a. The additional height is necessary to accommodate the particular use conducted in the building; and b. Each required yard abutting the structure is increased five feet for each one foot the structure exceeds 30 feet above average building elevation _ The school building meets the 30-foot height requirement. The proposed mechanical attic exceeds 40 feet in height; however, pursuant to FWRC 19.110.060(a), "Exceptions," rooftop appurtenances may exceed the applicable height limitation by a maximum of four feet, if the area of all appurtenances and screening does not exceed 10 percent of the total area of the building footprint. These appurtenances must be located in such a way as to minimize view blockage. The additional height for the mechanical attic meets the requirement. Parking— Pursuant to FWRC 19.200.090, parking requirements for elementary schools is one parking stall for each employee. Per the submitted plans, 60 parking stalls are required and 62 parking stall are provided on site in two parking areas. The parking in front of the main entrance contains 26 stalls. Special Notes/Requirements— The proposed school complies with the following applicable special regulations and notes: • The school use will not be detrimental to the character of the neighborhood, it will serve the immediate area in which it is located and is adjacent to a collector right-of-way. • The outdoor play area meets requirements and the play equipment and structured play areas are not located within any required yard. • The site complies with required on -site passenger loading area and bus loading areas. • The school use complies with the requirements of the State Department of Social and Health Services and/or the State Superintendent of Public Instruction. 8. Landscaping — FWRC 19.125.0609(2) contains required widths for landscaping in the RS zone. The required landscaping is 10 feet of Type III along all property lines. The site plan depicts 10 feet of Type III landscaping as stated above. Interior parking lot landscaping in the amount of 22 square feet per parking stall is required. For the 62 parking stalls provided, 1,364 square feet of landscaping is required. The applicant proposed 2,400 square feet of interior parking lot landscaping, exceeding the minimum requirement as detailed on the site plan. 9. Fence Requirements — Pursuant to FWRC 19.125.160, fences and railings not over six feet in height may be located in required yards. The proposed chain link fence around the outdoor play area is 10 feet in height with the required yard setbacks. Findings for Approval 19-100188-UP/Doc. I.D. 78712 Mirror Lake Elementary School Rebuild Page 2 of 8 The additional height in the fence is required to accommodate the unique safety challenges around schools and create a safe and secure site for scholars. The height of the fence complies with requirements of the Office of Superintendent of Public Instruction (OSPI) per FWRC 19.200.090(12) and the requirements of RCW 28A.320.125 "Safe School Plans." The proposed 10-foot tall fence is approved for around the perimeter of the outdoor play areas. The increase in height will not create a significant impact on adjacent property and is needed for maintaining safe and secure facility for both scholars and the community. The remaining chain link fence around the school will be four to six feet in height. 10. Clearing & Grading — Clearing and grading activities are consistent with applicable standards set forth in FWRC Chapter 19.120. Grading of the site will amount to approximately 31,500 cubic yards of cut and 14,250 cubic yards of fill. There are two below -grade detention facilities, one in the northwest parking lot and the other is located south of the proposed building. 11. Tree Retention/Replacement — Pursuant to FWRC 19.120.130, compliance with the city's tree density requirements in the RS zone (25 tree units per acre) requires 209 tree units on the subject property's 8.34 acres. The applicant submitted the required tree retention plan and proposes to remove trees in conjunction with the site development, with 24.5 tree units to remain on site. Replacement plantings of 184.5 tree units will be installed in conjunction with the landscaping meeting minimum required tree units. This requirement is satisfied. 12. Community De ign Gaikknes — As detailed below, the project embodies site and building design principles consistent with requirements of the Community Design Guidelines (FWRC Chapter 19.115). a. Crime Prevention Througb Environmental Design (CPTED) i. Completed CPTED checklist. ii. Main entrances/exists in view of the street and easily recognizable. iii. Direct and visible pathways. iv. Visibility of surface parking is maintained from the street and building. v. Preliminary lighting plan conforms to IES standards. vi. Landscaping does not obstruct natural surveillance. b. Site Design — FWRC 19.115.050(1) General Criteria i. Implementation of pedestrian areas and amenities includes concrete pavement with an exposed aggregate pedestrian paths connecting the sidewalk and parking areas to the buildings. ii. Entry plazas with fixed seating, bike racks, and landscaping are incorporated into the site design. iii. The project design has an overall continuity with similar elements used throughout the project. e. Site Dw- r p - FWRC 19.115.050(2) Surface Parking i. Interior lot landscaping quantity and island dimensions meet the requirements. ii. Delineated pedestrian walkways are provided within the parking lot with connections to the building, surrounding streets, and parking lot. a Loop access through the parking lot is provided. d. Site Design - FWRC 19.115.050(4) Pedestrian Circulation and Public Space i. Primary building entrance is clearly visible from the right-of-way. Findings for Approval 19-100188-UP/Doc. I.D. 78712 Mirror Lake Elementary School Rebuild Page 3 of 8 I Pedestrian connections are' delineated with separate paved routes and provided from adjacent public sidewalk to building entrances. iii. Connections through the asphalt parking lot delineated with concrete pavement with an exposed aggregate finish. iv. Pedestrian plazas with seating, landscaping, bicycle rack, trash receptacles, located at each of the main building entrance. e. Site De ign - FWRC 19.115.050(6) Service Areas and Site Utilities i. Service area is located to the east of the building separated from the pedestrian, drive aisle, and building entrances. ii. Area is screened with landscaping and solid wall. iii. Trash, recycling, generator, and transformer located in the service yard. iv. Roof is projected above the trash and recycling. f. Builrlixg.Design — FWRC 19.115.060 i. Material transitions, window shadow box articulation, and texture are used to breakdown the building massing and scale. I The building incorporates foundation landscaping, canopy, and pedestrian plaza to provide facade screening. iii. Articulation of materials, colors, large storefront windows, visible trim material, entry canopy, foundation landscaping, building recesses, stepped parapet heights and coping, pedestrian plaza, and artwork are used as methods to articulate blank walls. g. Bmilding and Pedestrian Orientation — FWRC 19.115.070 1. The building is orientated to the right-of-way and incorporates pedestrian plazas at the parent and bus drop-off areas. h. District Gaade6yes — FWRC 19.115.090(l)(a), (b), (e), 0, (h), and (i) 1. Parking located adjacent to the right-of-way maximized pedestrian access and circulation by delineated paved routes. I The entrance facade is clearly recognizable from South 314th and incorporates transparent glass and entrance canopy. iii. Chain link fence utilizes vinyl -coated mesh and powder coated poles in black. iv. Parking lots are broken up into stalls of 10 parking spaces or less, separated by planting areas. i. Institutional Uses — FWRC 19.115.100 i. Significant structural modulations are incorporated on the east and south facades. Alternative method for the north and west facades are described in a I The building's roof design incorporates alternative distinctive forms that create multiple stepped rooflines and vertical modulation that are integral to the design of the building. iii. Alternative methods to organize and shape structural elements on the north and west facades include modulations, window openings with shadow box, material variation, pedestrian plazas, landscaping, and streetscape elements. Student provided artwork is incorporated as a decorative glass tile accent band around the building. Custom perforated Findings for Approval 19-100188-UP/Doc. I.D. 78712 Mirror Lake Elementary School Rebuild Page 4 of 8 metal vertical trellis at the vertical siding area and at the downspouts are incorporated into the fagade design. The combination of modulations, fagade treatments/articulation and roof design break down the overall bulk of the building to an appropriate scale for the surrounding neighborhood. iv. Lighting fixtures shall not exceed 30 feet, which will be verified with final lighting plan submitted with building permit. 13. Rooftop Mechanical Equipment —Per FWRC 19.110.070, vents and similar appurtenances that extend above the roofline must be surrounded by a solid sight -obscuring screen that is integrated into the architecture of the building and obscures the view of the appurtenances from adjacent streets and properties. The rooftop equipment is fully enclosed. 14. Garbage/ Recycling — Design and space requirements meet criteria set forth in FWRC 19.125.150. The garbage and recycling facilities are screened by a solid wall and landscaping that is consistent with the site's architecture and design. 15. Critical Aquifer Recharge Area — The subject property is within the five-year wellhead capture zone, which is designated as a critical aquifer recharge area under the provisions of the Growth Management Act (Chapter 36.70A RCW). Per FWRC 19.145.490, any proposed development located in critical aquifer recharge areas shall submit a hazardous materials inventory statement with a permit, land use, or business license application. No hazardous materials in amounts that would be detrimental to the protection area were identified on the inventory statement. Per FWRC 19.145.510, proposed developments with maintained landscaped areas greater than 10,000 square feet in area shall prepare an operations and management manual using best management practices (BMPs") and integrated pest management for fertilizer and pesticide/herbicide applications. As the proposed landscaped area will exceed 10,000 square feet, the applicant prepared a management manual using BMPs and integrated pest management (IPM) for fertilizer and pesticide/herbicide applications. 16. Tacoma Smelter Plume — The subject property is within the Tacoma Smelter Plume detect area, containing under 20 ppm arsenic and lead concentration, as identified by the state Department of Ecology (DOE). FWPS conducted arsenic and lead soil sampling and submitted an October 17, 2018, report prepared by PBS Engineering and Environmental Inc. (PBS). Sixty soil samples were collected from locations around the building landscaping and playhelds. The property was divided into three decision units based on current use as a playfield or landscape area. The report concludes that there is no detectable arsenic or lead in soil samples collected within decision unit I. Soil samples collected within decision units 2 and 3 identified two locations were arsenic concentrations were above DOE's Model Toxics Control Act (MICA) standards. PBS recommends removal of the impacted soil from the site. As a condition of Process III approval, prior to any grading, excavation, or earthwork activities that disturb on -site soils, remediation of impacted soils under PBS's supervision is required. Prior to issuance of a Certificate of Occupancy, confirmation sampling that decision units 2 and 3 are below MTCA Method A Cleanup Levels (CULs) is required. 17. Temporary Construction Trailer —Pursuant to FWRC 19.275.080, "Regulation of temporary trailers, buildings, or other structures for construction, temporary business or sales, and outdoor storage containers for construction -related materials" temporary trailers used for construction offices are permitted on the subject property during development and is integrated into the land use process applicable to the underlying project, in this case the Process III land use review. Findings for Approval 19-100188-UP/Doc. I.D. 78712 Mirror Lake Elementary School Rebuild Page 5 of 8 Due to the location and current construction activity on the subject property, it has been deemed that the temporary trailers location, within the required 50-foot setbacks, is acceptable. The placement of the contractor trailers must be located outside the sight distance triangle per FWRC 19.135.310. The submitted drawing for the temporary trailers is not to scale; sight distance could not be verified at this time. As long as the trailers are placed outside the sight distance triangle, the trailers do not alter the character of the site, on a temporary basis. The construction trailers must be removed from the property within six months after the Mirror Lake Elementary School building receives a Certificate of Occupancy. 18. Transportation — As a component of the Use Process III application, projects undergo traffic concurrency analysis pursuant to the state Growth Management Act (GMA); goals and policies of the FWCP; and FWRC Chapter 19.90, "Transportation Concurrency Management." A Capacity Reserve Certificate was issued in March 29, 2019, for the development of a 63,590 square foot elementary school. The number of new PM peak hour vehicle trips generated by the project is 26. A transportation impact fee is required and will be calculated based on the fee schedule in effect at the time a building permit application is filed, and must be paid prior to permit issuance. 19. Street Improvements — The applicant/owner will be expected to construct street improvements consistent with the planned roadway cross -sections as shown in Map III-4 in Chapter III of the Federal Way Comprehensive Plan (FWCP) and Capital Improvement Program (CIP) shown as Table III-10 (FWRC 19.135.040). The applicant is expected to construct improvements on the following streets to the city's planned roadway cross -sections: • South 314th Street is a Type "S" street, consisting of a 36-foot wide street with curb and gutter, 4-foot planter strips with street trees, 5-foot sidewalks, and street lights in a 60-foot right-of-way. FWPS is required to construct half -street improvements as measured from the street centerline. The existing north half of the South 314th Street does not provide enough pavement for on street parking. • Sixth Avenue South is a Type "S" street, consisting of a 36-foot street with curb and gutter, 4-foot planter strips with street trees, 5-foot sidewalks, and street lights in a 60-foot right-of-way. The existing roadway is not constructed as a symmetrical cross section; half street improvements are required as measured from the street centerline. In the segment between Sta 23+58 and Sta 25+75 FWPS is responsible for installation of a 10-foot asphalt drive lane. The intersection of 8th Avenue South and South 314th Street was not designed to accommodate school buses. Due to the small pavement radius, school buses entering and leaving the site (southbound right and eastbound right) will encroach onto opposing traffic lanes, thus posing a safety concern. To address this safety concern, the applicant proposed additional pavement widening improvements to the northwest and southwest corner of the intersection. The submitted school bus turning exhibit at 8th Avenue South and South 314th Street Qune 19, 2019), prepared by LPD Engineering depicted school buses entering and leaving the intersection without encroaching onto opposing traffic lanes with the proposed improvement. However, a power pole located at the southwest corner will need to be relocated outside of the bus turning path. Prior to permit issuance, the applicant shall design and submit the improvement plan for review and approval by the city. The improvement must be constructed prior to any use by school busses under either -a Temporary Certificate of Occupancy or Certificate of Occupancy. • The proposed raised crosswalk on South 314th Street and 7th Avenue South must be relocated further east. As proposed, students waiting to cross South 314th Street will congregate within the northbound right turn vehicle path (driveway wing). The raised crosswalk must be designed to provide safe Findings for Approval 19-100188-UP/Doc. I.D. 78712 Mirror Lake Elementary School Rebuild Page 6 of 8 waiting area and must meet ADA requirements. As such, prior to the issuance of the permit, the new raised crosswalk shall be designed and submitted for review and approval. The improvement must be constructed prior to the issuance of Certificate of Occupancy. 20. Access — The project will have two driveways onto South 314th Street. Both driveways will be 30 feet in width. The easterly driveway is designated for visitor and parent pick-up/drop-off and bus/staff will utilize the westerly driveway. .• The submitted school bus turning exhibit depicts a school bus travelling in to the opposing traffic lane when entering and leaving the school bus and staff driveway. This conflict poses safety concerns with oncoming vehicles. To address this conflict, FWPS has provided a plan prepared by Mike Benzien, Executive Director Maintenance & Operations and Michael Swartz, Executive Director Capital Projects detailed in a June 26, 2019, memorandum ensuring such conflict will not occur by restricting other vehicles from using this driveway when school buses are arriving and departing. The restrictions are as follow: o Before school starts, staff is contracted to arrive at least 30 minutes before school buses arrive. o After school, staff is contracted to leave 30 minutes after school buses leave. o For the rare condition where staff will have a conflict with school buses, the staff is required to use a different parking lot. o The FWPS will provide training as needed to the Mirror Lake staff and FWPS Transportation. This plan shall be implemented at all times and signage informing drivers of the restrictions shall be maintained. 21. Stormsvater— The project will be required to meet the requirements of a Full Drainage Review, as identified in the 2016 King County Surface Water Design Manual (KCSWDM) and the City of Federal Way Addendum to that manual. Detention and water quality for the project will be required to meet the Conservation Flow Control and Enhanced Basic Water Quality standards, respectively. The city and FWPS have committed to the following: • Enhanced Basic Water Quality treatment for South 314th Street and 6th Avenue South will be owned and maintained by the City of Federal Way. • FWPS will sign and record the Stormwater Declaration of Covenant. . 22. Water and Sewer— Lakehaven Water & Sewer District is the water and sewer service provider. Lakehaven issued certificates of water and sewer availability on February 5, 2019; certificates are valid for one year from the date of issuance. The applicant will need to submit applications to Lakehaven for any necessary water and/or sewer service connections. 23. South King Fire & Rescue — The South King Fire and Rescue District has indicated an automatic fire sprinkler and fire alarm system is required. Fire alarm shall be a voice evac system. Only one pull station will be allowed. This pull station will be in a staff only area; not assessable to students or public. A recessed fire department "Knox" brand key box shall be installed on the building near every locked entrance. Three fire hydrants are required and shall be in service prior to and during the time of construction. The building is required to have approved radio coverage for emergency responders within the building based upon the existing coverage levels of the public safety communication system at the exterior of the building. 24. Conditions of Approval — The following conditions of approval are attached to the Process III decision: Findings for Approval 19-100188-UP/Doc. I.D. 78712 Mirror Lake Elementary School Rebuild Page 7 of 8 1) Prior to issuance of the Certificate of Occupancy, the applicant shall provide a written commitment signed by the school superintendent that confirms removal of the existing elementary school within one year of the issuance of the Certificate of Occupancy of the new school. 2) Prior to any grading, excavation, or earthwork activities that disturb on -site soils, remediation of impacted soils under PBS's supervision is required. 3) Prior to issuance of a Certificate of Occupancy, confirmation sampling that the soil samples within decision units 2 and 3 are below MTCA Method A Cleanup Levels (CULs) is required. 4) The construction trailers must be located outside the sight distance triangle and removed from the property within six months after the issuance of the Certificate of Occupancy for the new school. 5) Prior to issuance of Certificate of Occupancy, FWPS must sign and record the Stormwater Declaration of Covenant. 6) Prior to the issuance of a Temporary Certificate of Occupancy, or Certificate of Occupancy, all frontage improvements shall be constructed, inspected and accepted by the city. Acceptance includes submission of an As -built Drawing, as defined in Section 1.2 of the Public Works Development Standards, for review and approval. 7) Prior to permit issuance, the applicant shall design and resubmit the intersection improvement plan for review and approval by the city. The improvement must be constructed prior to any use by school busses under either a Temporary Certificate of Occupancy or Certificate of Occupancy. 8) Prior to permit issuance, the new raised crosswalk shall be designed and submitted for review and approval. The improvement must be constructed prior to the issuance of the Certificate of Occupancy. 9) Prior to permit issuance, the street light plan must be designed and submitted to the city for review and approval. The improvement must be constructed prior to the issuance of the Certificate of Occupancy. 10) The June 26, 2019, memorandum prepared by FWPS shall be implemented at all times and signage informing drivers of the restrictions shall be maintained. The restrictions are as follow. o Before school starts, staff is contracted to arrive at least 30 minutes before school buses arrive. o After school, staff is contracted to leave 30 minutes after school buses leave. o For the rare condition where staff will have a conflict with school buses, the staff is required to use a different parking lot. o FWPS will provide training as needed to the Mirror Lake staff and FWPS Transportation. 25. Conclusion - As conditioned, the proposed site plan application has been determined to be consistent with the FWCP; with all applicable provisions of the FWRC; and with the public health, safety, and welfare. The streets and utilities in the area of the subject property are adequate to serve the anticipated demand from the proposal, and the proposed access to the subject property is at the optimal location and configuration for access. The proposed development is consistent with Process III, Project Approval, decisional criteria required under FWRC Chapter 19.65. The proposed site plan and application attachments have been reviewed for compliance with the FWCP, pertinent zoning regulations, and all other applicable city regulations. Final construction drawings will be reviewed for compliance with specific regulations, conditions of approval, and other applicable city requirements. This decision shall not waive compliance with future City of Federal Way codes, policies, and standards relating to this development. Prepared by: Becky Chapin, Senior Planner Date. July 18, 2019 Findings for Approval 19-100188-UP/Doc. I.D. 78712 Mirror Lake Elementary School Rebuild Page 8 of 8 CITY OF 'k Federal Way Centered on Opportunity July 18, 2019 Mr. Ray Vefik CBRE/Heery 1420 5th Avenue, Suite 1700 Seattle, WA 98101 rve£ik@,Ef a2s.org CITY HALL 33325 8th Avenue South Federal Way, WA 98003-6325 (253) 835-7000 www. cityoffederalway. com FILE Re: File #19-100960-00-CO; 2Rd BUILDING COMMENT LETTER Mirror Lake Elementary School, 625 South 314th Street, Federal Way Dear Mr. Vefik: Jim Ferrell, Mayor City staff has conducted review of the above -mentioned building permit application to construct a new Mirror Lake Elementary School west of the site of the existing elementary school, with the old school demolished and site improvements completed once the new school is occupied. A review of the submitted materials indicates the following issues that must be addressed prior to building permit approval. Please direct questions regarding any of the technical comments to the appropriate staff representative. COMMUNITY DEVELOPMENT — PLANNING DIVISION Becky Chapin, 253-835-2641, Becky.Chapin@cityoffederalway.com 1. Perdineter 1 undraping — Pursuant to Federal Wlay Revised Code (FWRC) 19.125.060(2), "Single -Family Residential, RS," Type III landscaping 10 feet in width shall be provided along all property lines. The five-foot landscape buffer along the southeast corner of the property is not within the property boundaries. Please revise the landscape plan per the UPIII Approved Landscape Plan. PUBLIC WORKS — DEVELOPMENT SERVICES DIVISION Cole Elliott, P.E., 253-835-2730, Cole. Elliott@cityoffederalway.com Development Services has reviewed the CO permit set and July 15, 2019, Technical information Report (TIR). The following items must be corrected or addressed before we can sign off for the permit: Sheet C-201 1. Again, the number of chambers shown on this sheet does not match the number of chambers shown on the TIR (ADS Design Tool). In addition, the summary given on this sheet and in Detail 2 on Sheet C-206 appear to call out 10 fewer chambers and has a volume in excess of the volume shown on the ADS Design Tool sheet. Mr. Ray Vefik Page 2 of 4 July 18, 2019 Sheet C-203 2. Again, the number of chambers shown on this sheet does not match the number of chambers shown on the TIR (ADS Design 'fool).. In addition, the summary given on this sheet and in Detail 4 on Sheet C-206 appear to call out three fewer.chambers and has a volume in excess of the volume shown on the ADS Design Tool, sheet. Sheet C-206 3. Detail 2 information on the number of chambers and storage volume does not match the information provided in the TIR (ADS Design Tool). 4. Detail 4 information on the number of chambers and storage volume does not match the information provided in TIR (ADS Design Tool). Technical Information Report (TIR) 5. Designed Detention Facility #1 (ADS Design Tool) information on the number of chambers and the storage volume does not match the information given on Sheet C-201 and Detail 2 Sheet C-206. 6. Designed Detention Facility #2 (ADS Design Tool) information on the number of chambers and the storage volume does not match the information given on Sheet C-203 and Detail 4 Sheet C-206. Site Improvement BondQuantity Worksheet 7. The Bond Quantity Worksheet submitted does not correspond to the city's worksheet, but the city is willing to accept provided the following items are addressed: • The current design calls for the installation of two Rock Construction Entrances, but none are shown on the worksheet. Add two entrances (50' x 15' x 1� at a minimum (Sheet 2 of 9). • Add TESC supervisor hours to worksheet (Sheet 2 of 9). • Add Water Truck dust control to worksheet (Sheet 2 of 9). • Add Backfill & Compaction — trench (Sheet 3 of 9). • Add Excavation — Bulk (Sheet 3 of 9). • Add Excavation — trench (Sheet 3 of 9). • Add Survey line & grade (Sheet 3 of 9). • Add Sealant, asphalt (Sheet 4 of 9). • Add Thickened Edge (Sheet 5 of 9). • Sheet 6 of 9, Culvert, PVC, 8" and 12" are not allowed under the previous development standards therefore change to Culvert, Concrete 12" (Sheet 7 of 9). • Add Utility Pole Relocation (Sheet 8 of 9). • Add Street Light Poles w/Luminaires (Sheet 8 of 9). • Sheet 9 of 9 shall be modified to conform to the city's worksheet (Add A+B+C); add 20% contingency, this equals the minimum Performance and Maintenance Bond. 19-100960-00-CO Doc. ID 79380 4 i- Mr. Ray Vefik Page 3 of 4 July 18, 2019 Declaration of Covenant 8. The covenant included in TIR is incorrect. Replace with the Stormwater Covenant mailed to Dr. Campbell on May 14, 2019. PUBLIC WORKS — TRAFFIC DIVISION Sarady Long, 253-835-2743, sarady.long@cityoffederalway.com Street light Plan: Provide a separate public street light plan sheet for Gih Avenue South and South 314th Street in engineering scale. The street Lighting plan shall include, but not be limited to the following information: • Line loss calculations if applicable to ensure no more than five percent voltage drop in any circuit. Must be depicted on sheet if met or not. ■ Photometric printout. Required for street lighting plans that deviate from standard spacing and wattage. ■ Identify power source for connection and coordinate with PSE for connection. • Streetlight pole and number with station and offset. Streetlight pole number (XXX-YY-AAZZ-BB) per Dwg. 3-39B. 0 J-Boxes GB) with type. ■ Conduit size and runs. 4 Service cabinet with station and offset. + Circuit number. • Luminaire type/watts/distribution (Luminaires shall be Eaton Archeon LED fixtures — Dwg. No. 3-38 Rev OCT 2018). • Mounting height and Mast arm length. • InstallJB and conduit for future extension. POLE SCHEDULE (Example) Pole Pole Pole Lamp No.** Street Sta. Offset 37.5' Watta S3 1 18 Ave 31+50.0 SW LT. 11.5 64 2 SW 344 9+20.0 St RT. WIRING SCHEDULE r;xam le Run Circuit No. No. Conduit 1 p, New 2" PVC 2 g New 2" PVC Mounting Mast Circuit Distribution Hei ht Arm No. Service M-C-II 30' 10' X. NEW M-C-II 1 30' Conductors New 1 - #8 Green New 2 - New 1 - #8 Green 12' f A NEW Remarks Sch. 40 Sch. 80 Doc. [D 79390 19-100960-00-CO Mr. Ray Vefik Page 4of4 July 18, 2019 Raised Crosswalk on South 314th Street • Relocate the crosswalk further east to provide adequate separation between the driveway and the crosswalk. Ensure waiting areas are adequate to accommodate the expected students. 8th Avenue South and South 314,h Street Improvement • Coordinate with PSE on the new pole location and provide approval letter from PSE to the city prior to power source connection. ■ Verify utilities conflicts at proposed/new power pole location. • Provide adequate clearance between power pole and the edge of the traveled way (a minimum of two feet shy distance from the vertical curbs). Please refer to WSDOT Design Manual. • Verify storm drainage for the expanded paved area. CLOSING The purpose of this plan review is to verify code compliance, to the extent possible and reasonable, given the information provided on the plans and the city's plan review resources and capabilities. In no way does any city approval constitute a guarantee of code compliance; authorize any work in violation of any applicable codes; or relieve the owner of responsibility for complying with pertinent codes and ordinances. When resubmitting requested information, please provide plans and/or reports the same format, size, and amount as the originally submitted plans, with the enclosed resubmittal form. Revised/resubmitted drawings shall indicate by means of clouding or written response, what changes have been made from the original drawings. Please include my comment letter with your written responses with your resubmittal. Further corrections may be necessary as a result of submitting additional information. If you have any questions, please contact me at 253-835-2641, or heck; .cliapin c rst�offederalway.com. Sincerely, &o�� Becky Cl apin Senior Planner enc Resubmittal Information Form C, Brian Davis, Community Development Director Cole Elliott, Development Services Manager Sarady Long, Senior Transportation Planning Engineer Mike Benzien, Federal Way Public Schools, mltrnzien tt s.L"r} Casey Moore, Federal Way Public Schools, cmoore(@fw�ps.otg Sam Schafer, Integrus Architecture, 5schnferFeintegllssarch.eam 19-100960-00-CO Doc. ID 79380 BUILDING DIVISION PRE -CONSTRUCTION MEETING SIGN -IN PROJECT NAME: DATE: NAME COMPANY/ORGANIZATION PHONE NUMBERS E-MAIL 1 ❑� Office:d55-7zv-� r�G �f G• Other: mm 2. s r-, ,�cr���rcn �a{� �t1 ire v� Office:+7jb� y 8 C7 ret�b@;<on-OL ,v.i Other: 3 Ca��b �Rwt.A- Office:2ol- �3T aiL Ca[Qbrl'ti.ec .cc Other: 4. 2 ..? a CG !t�l/� Office: R 6, Y I4T-2703 Other: S. Wili Office:-® 1O.CC_C.w 4 Other: 6. ^t r Ee a 'b rn A Office: �v6C9 �6K 9077 E �+ Other: 7. Office: Other: 8 Office: Other: 9 Office: Other: 10. Office: Other: 11. Office: Other: 12 Office: Other: 13. Office: Other: 14. Office: Other: 15. Office: Other: Bulletin #146 -May 3, 2019 Page 8 of 8 k:\Handouts\Pre-Con Meeting Notes mq ntegiFCx+rV rrrat July 23, 2019 Becky Chapin City of Federal Way 33325 81h Avenue South Federal Way, WA 98003 RESUBMITTED JUL 2 3 2019 GFFY OF FEDERAL WAY COMMUN Y 4EYELOP�4F�iT RE: File #19-100960-00-CO, 2nd BUILDING COMMENT LETTER Mirror Lake Elementary School, 625 South 314r" Street, Federal Way Integrus Project No. 21737.00 117 S. Main St., Suite 100 SeatBe, WA 98104 Dear Ms. Chapin: 206.628.3137 office 206.628.3138 fax Below are written responses to your building comment letter dated July 18, 2019. Drawings with clouds identifying all revisions have been submitted with the written responses. Becky Chapin Community Development— Planning Division 1. Perimeter Landscaping - Pursuant to Federal Way Revised Code (FWRC) 19. 125.060(2), "Single -Family Residential, RS," Type III landscaping 10 feet in width shall be provided along all property lines. The five-foot landscape buffer along the southeast comer of the property is not within the property boundaries. Please revise the landscape plan per the UP III Approved Landscape Plan. Response: Revised to show UP III Approved Landscape Plan. Cole Elliott Public Works - Development Services Division Sheet C-201 1. Again, the number of chambers shown on this sheet does not match the number of chambers shown on the TIR (ADS Design Tool). In addition, the summary given on this sheet and in Detail 2 on Sheet C-206 appear to call out 10 fewer chambers and has a volume in excess of the volume shown on the ADS Design Tool sheet. Response: Per conversation with the ADS manufacturer, the ADS Design Tool is meant to get an approximate size detention system prior to ADS issuing the final design drawings. Therefore, the ADS Design Tool has been removed from the drainage report to eliminate any confusion between the TIR and the plans. Sheet C-203 2. Again, the number of chambers shown on this sheet does not match the number of chambers shown on the TIR (ADS Design Tool). In addition, the summary given on this sheet and in Detail 4 on Sheet C-206 appear to call out three fewer chambers and has a volume in excess of the volume shown on the ADS Design Tool sheet. Response: Per conversation with the ADS manufacturer, the ADS Design Tool is meant to get an approximate size detention system prior to ADS issuing the final design drawings. nteg, us �erxlier�uF: Ms. Becky Chapin Page 2 July 23, 2019 Therefore, the ADS Design Tool has been removed from the drainage report to eliminate any confusion between the TIR and the plans. Sheet C-206 3. Detail 2 information on the number of chambers and storage volume does not match the information provided in the TIR (ADS Design Tool). Response: Per conversation with the ADS manufacturer, the ADS Design Tool is meant to get an approximate size detention system prior to ADS issuing the final design drawings. Therefore, the ADS Design Tool has been removed from the drainage report to eliminate any confusion between the TIR and the plans. 4. Detail 4 information on the number of chambers and storage volume does not match the information provided in TIR (ADS Design Tool). Response: Per conversation with the ADS manufacturer, the ADS Design Tool is meant to get an approximate size detention system prior to ADS issuing the final design drawings. Therefore, the ADS Design Tool has been removed from the drainage report to eliminate any confusion between the TIR and the plans. Technical Information Report (TIR) 5. Designed Detention Facility #1 (ADS Design Tool) information on the number of chambers and the storage volume does not match the information given on Sheet C-201 and Detail 2 Sheet C-206. Response: Per conversation with the ADS manufacturer, the ADS Design Tool is meant to get an approximate size detention system prior to ADS issuing the final design drawings. Therefore, the ADS Design Tool has been removed from the drainage report to eliminate any confusion between the TIR and the plans. 6. Designed Detention Facility #2 (ADS Design Tool) information on the number of chambers and the storage volume does not match the information given on Sheet C-203 and Detail 4 Sheet C-206. Response: Per conversation with the ADS manufacturer, the ADS Design Tool is meant to get an approximate size detention system prior to ADS issuing the final design drawings. Therefore, the ADS Design Tool has been removed from the drainage report to eliminate any confusion between the TIR and the plans. Site Improvement Bond Quantity Worksheet The Bond Quantity Worksheet submitted does not correspond to the city's worksheet, but the city is willing to accept provided the following items are addressed: • The current design calls for the installation of two Rock Construction Entrances, but none are shown on the worksheet. Add two entrances (50' x 15' x 1') at a minimum (Sheet 2 of 9). • Add TESC supervisor hours to worksheet (Sheet 2 of 9). �nteg, us ancnr�acrvae Ms. Becky Chapin Page 3 July 23, 2019 • Add Water Truck dust control to worksheet (Sheet 2 of 9). • Add Backfill & Compaction - trench (Sheet 3 of 9). • Add Excavation - Bulk (Sheet 3 of 9). • Add Excavation - trench (Sheet 3 of 9). • Add Survey line & grade (Sheet 3 of 9). • Add Sealant, asphalt (Sheet 4 of 9). ■ Add Thickened Edge (Sheet 5 of 9). ■ Sheet 6 of 9, Culvert, PVC, 8" and 12" are not allowed under the previous development standards therefore change to Culvert, Concrete 12" (Sheet 7 of 9). • Add Utility Pole Relocation (Sheet 8 of 9). • Add Street Light Poles w/Luminaires (Sheet 8 of 9). • Sheet 9 of 9 shall be modified to conform to the city's worksheet (Add A+B+C); add 20% contingency, this equals the minimum Performance and Maintenance Bond. Response: Bond Quantity Worksheet items have been added and revised as requested. Declaration of Covenant 8. The covenant included in TIR is incorrect. Replace with the Stormwater Covenant mailed to Dr. Campbell on May 14, 2019. Response: Signed stormwater covenant included in TIR Sarady, Public Works - Traffic Division Street light Plan: Provide a separate public street light plan sheet for 6"h Avenue South and South 314"h Street in engineering scale. The street lighting plan shall include, but not be limited to the following information: • Line loss calculations if applicable to ensure no more than five percent voltage drop in any circuit. Must be depicted on sheet if met or not. • Photometric printout. Required for street lighting plans that deviate from standard spacing and wattage. • Identify power source for connection and coordinate with PSE for connection. • Streetlight pole and number with station and offset. Streetlight pole number (XXX-YY- AAZZ-BB) per Dwg. 3-39B. ■ J—Boxes (JB) with type. • Conduit size and runs. • Service cabinet with station and offset. ■ Circuit number. • Luminaire type/watts /distribution (Luminaires shall be Eaton Archeon LED fixtures — Dwg. No. 3-38 Rev OCT 2018). • Mounting height and Mast arm length. • Install JB and conduit for future extension. Response: Street light plan included with this submittal. Ms. Becky Chapin Page 4 July 23, 2019 Raised Crosswalk on South 314th Street ■ Relocate the crosswalk further east to provide adequate separation between the driveway and the crosswalk. Ensure waiting areas are adequate to accommodate the expected students. Response: Crosswalk relocated to east as coordinated with Sarady Long, Sr. Transportation Planning Engineer, to provide adequate separation between the driveway and the crosswalk to accommodate student waiting areas. 8th Avenue South and South 314th Street Improvement • Coordinate with PSE on the new pole location and provide approval letter from PSE to the city prior to power source connection. ■ Verify utilities conflicts at proposed/new power pole location. • Provide adequate clearance between power pole and the edge of the traveled way (a minimum of two feet shy distance from the vertical curbs). Please refer to WSDOT Design Manual. • Verify storm drainage for the expanded paved area. Response: The Contractor will coordinate with PSE on the proposed new pole location. Federal Way Public Schools will submit an approval letter from PSE to the City of Federal Way prior to power source connection. • Relocated power pole location reviewed/located to avoid potential utility conflicts. ■ Expanded pavement added in SD calculation and TIR. Please feel free to contact me if you have any questions or further clarifications. Sincerely, 'a'4' / Sam Schafer, AIA Project Manager INTEGRUS ARCHITECTURE, P.S. Documents: Resubmiltal Drawings Revised Technical Information Report PC: Becky Chapin, City of Federal Way, Senior Planner Ray Vefik, Federal Way Public Schools FILErIiY HALL � Federal Way Centered on Opportunity July 9, 2019 Ray Vefik CBRE/Heery 1420 5th Avenue, Suite 1700 Seattle, WA 98101 rink@fps. org Re: File #19-100960-00-CO; BUILDING COMMENT LETTER Mirror Lake Elementary School, 625 South 314th Street, Federal Way Dear Mr. Vefik: 33325 8th Avenue South Federal Way, WA 98003-6325 (253) 835-7000 www. cityoffederalway. com Jim Ferrell, Mayor City staff has conducted review of the above -mentioned building permit application to construct a new Mirror Lake Elementary School west of the site of the existing elementary school, with the old school demolished and site improvements completed once the new school is occupied. A review of the submitted materials indicates the following issues that must be addressed prior to building permit approval. Please direct questions regarding any of the technical comments to the appropriate staff representative. PUBLIC WORKS — DEVELOPMENT SERVICES DIVISION Cole Elliott, P.E., 253-835-2730, Cole. Elliott@cityoffederalwayxom General 1. The hatch symbol used for asphalt removal in Plan Section C-1XX is too similar to the grind and overlay hatch symbol used in Plan Section C-5XX. The School District is hereby notified that the School District will be responsible for installation of additional Water Quality and Flow Control systems if the Contractor removes the area which has been designed for grind and overlay. Forma ROW Phasing Plans 2. Page 1 — The leader on the Construction Entrance call out located along South 3141h Street appears to be pointing at 7th Avenue South. 3. Page 2 — Again the leader on the Construction Exit call out along South 314t" Street appears toIbe pointing at 7th Avenue South. 4. Page 3 — Again the leader on the Construction Exit call out along South 314th Street appears to be pointing at 7th Avenue South. Sheets C-001 through C-100-Ph2 5. No comments. Mr. Vefik: July 9, 2019 Page 2 Sheet C-101-Ph2 6. Asphalt grind hatch is not provided in Legend. Any Contractor working quickly may assume this area is to have the asphalt removed. See General Comment above for the potential consequence of this error. Sheet C-102-Ph2 7. No comments. Sheet C103-Ph2 8. Again, as grind hatch is not provided in Legend. Any Contractor working quickly may assume this area is to have the asphalt removed. See General Comment above for the potential consequence of this error. Sheets C104-Ph2, C-105 and C-200 9. No comments. Sheet C-201 10. Correct call outs for SD 11A and 11C, Detail 7 on Sheet C-208 does not appear to exist. 11. Call outs for the number of chambers required as well as storage volumes shown on Detention System #1 and in the TIR do not match those provided on Detail 2 Sheet C-206. Sheet C-202 12. No comments. Sheet C-203 13. Correct call outs for SD 3B and 3C, Detail7 on Sheet C-208 does not appear to exist. 14. Call outs for the number of chambers required as well as storage volumes shown on Detention System #2 and in the TIR do not match those provided on Detail 4 Sheet C-206. Sheets C-204 and C-205 15. No comments. Sheet C-206 16. Detail 2 information does not match call out on Sheet C-201 and in the TIR. Correct. 17. Detail 4 information does not match call out on Sheet C-203 and in the TIR. Correct. 19-100960-00-CO Doc, ID 79361 Mr. Vefik: July 9, 2019 Page 3 Sheet C-207 through C-400 18. No comments. Sheet C-401 19. Correct location of leader on wheel stop call out to actually point at wheel stop. Sheets C-402 through C-500 20. No comments. Sheet C-501 21. Call out on SD 3F is incorrect. This structure is a type II manhole not a Type I catch basin. 22. The proposed storm main easement must include the words, "AND RECORDED UNDER AF ## ". The easement shall be recorded and the number for the recording added prior to submission of as -built drawings. Please remember that as -built drawing initial submittal is a requirement of frontage completion ai4d thereby any ability to grant Temporary Certificate of Occupancy (TCO) or Certificate of Occupancy (CO). Sheet C-502 23. The hatch symbol used for grind and overlay in Plan Section C-5XX is too similar to the asphalt removal hatch symbol used in Plan Section C-1XX. Please see General Comments for potential consequence of a construction error. 24. The proposed storm main easement must include the words, "AND RECORDED UNDER AF ## ". The easement shall be recorded and the number for the recording added prior to submission of as -built drawings. Please remember that as -built drawing initial submittal is a requirement of frontage completion and thereby any ability to grant Temporary Certificate of Occupancy (TCO) or Certificate of Occupancy (CO). Sheet C-503 25. Call out for SD 8F and 11F are incorrect. Detail 2 on Sheet C-507 is for a Type I catch basin whereas both of these structures are Type 2 manholes. 26. Since this segment is not a cross lateral, the storm main size from SD 12F to 13F shall be increased from 8-inch to 12-inch diameter in accordance with King County Road Design Standards 7.03. Sheet C-504 27. No comments, Sheet C-505 Doc. M 79361 19-100960-00-CO Mr. Vefik: July 9, 2019 Page 4 28. Again, the hatch symbol used for grind and overlay in Plan Section C-5XX is too similar to the asphalt removal hatch symbol used in Plan Section C-1XX. Please see General Comments for potential consequence of a construction error. 29. Call out for Detail 2 on Sheet C-510 for curb and gutter at Sta. 21+80 and Sta. 23+75 are incorrect. Sheet C-506 30. Call out for Detail 2 on Sheet C-510 for curb and gutter at Sta. 11+30 is incorrect. Sheets C-507 through C-604 31. No comments. CLOSING The purpose of this plan review is to vedfy code compliance, to the extent possible and reasonable, given the information provided on the plans and the City's plan review resources and capabilities. In no way does any City approval constitute a guarantee of code compliance; authorize any work in violation of any applicable codes; or relieve the owner of responsibility For complying with pertinent codes and ordinances. When resubmitting requested information, please provide plans and/or reports the same format, size, and amount as the originally submitted plans, with the enclosed resubmittal form, Revised/resubmitted drawings shall indicate by means of clouding or written response, what changes have been made from the original drawings. Please include my comment letter with your written responses with your resubmittal. Further corrections may be necessary as a result of submitting additional information. If you have any questions, please call me at 253-835-2641, or Becky.chapin@cityoffederalway..com. Sincerely, B"Ch Senior Planner enc: Resubmittal Information Form c: Brian Davis, Community Development Director Cole Elliott Development Services Manager Mike Benaien, Federal Way Public Schools, mbenzien@fwps.org Casey Moore, Federal Way Public Schools, cmoore@fwps.org Doc. ID 79361 19-100960-00-CO aI FEDERAL WAY Department of PUBLIC SCHOOLS Maintenal m {-�� g o[�ffs ' II CC TO: City of Federal Way Public Works - Traffic Division JUN 2 6 2019 FROM: Mike Benzien, Executive Director of Maintenance al� Michael Swartz, Executove Director of Capital Projec s PROJECT: Mirror Lake Elementary School SUBJECT: FWPS School Bus / Staff Traffic DATE: June 26, 2019 This memorandum is regarding the Federal Way Public Schools (FWPS) Capital Bond projects, specifically for Mirror Lake Elementary School. This will address the potential conflicts between the Staff traffic and the school buses. The conflict relates to where the school bus turns into the opposing traffic lane when entering and leaving the Mirror Lake Staff parking / driveway. FWPS will address this situation as follows: o Before school starts, Staff is contracted to arrive at least 30 minutes before the school buses arrive o After school, Staff is contracted to leave 30 minutes after school buses leave o For the rare condition where Staff will have a conflict with school buses, the Staff is required to use a different parking lot The District will provide training as needed to the Mirror Lake Staff and FWPS Transportation. "LL &� Mike Benzien Executive Director Maintenance & Operations cc: Sally McLean Dr. Danielle Pfeiffer Paul Vang Capital Projects Federal Way Public Schools Each Scholar: A voice. A dream. A BRIGHT future. 1211 S. 332"d St, Federal Way, WA 98003 1 p.253.945.5930 I f.253.945.59591 www.fwps.org CITY OF FEDERAL WAY COMMUNITY DEVELOPMENT DEPARTMENT RESUBMITTAL #3 DEVELOPMENT REVIEW COMMITTEE TRANSMITTAL DATE: June 25, 2019 TO: Cole Elliott, Development Services Manager Greg Kirk, Plans Examiner Rick Perez, City Traffic Engineer Brian Asbury, Lakehaven Water & Sewer District Chris Cahan, South King Fire & Rescue FROM: Becky Chapin, Senior Planner COMMENT. Email any additional technical comments or let me know if ready to approve. FILE NUMBER(s): 19-100188-00-UP RELATED FILE NOS.: 19-100960-00-CO PROJECT NAME: Mirror Lake Elementary School PROJECT ADDRESS: 625 South 314th Street ZONING DISTRICT: RS 7.2 PROJECT DESCRIPTION: RESUBMITTAL #3 of document responding to a technical comment letter dated June 11, 2019. LAND USE PERMITS: Use Process III (School District Lead Agency on SEPA) PROJECT'CONTACT: Ray Vefik CBRE 1420 Fifth Avenue, Suite 1700 Seattle, WA 98101 rvefik@fwps.org MATERIALS SUBMITTED: Resubmittal Form Response Letter Hazardous Materials Inventory Statement School Bus Turning Exhibit Geotech Report (AESI) Revised TIR Revised Plans I � 1 c-v_ v cv= vw _=-3 oe r:e : A v-G o ac Q `\ '•3 '-C► 3.V,a��a � � � .. .,- _ -_ i � 3+00 — 14+00 15+00 � ; a SOUTH X4TH 8MEET 16+00 h + -- a 1 I I 1 i ---__--=—=_. 17+00 -- -- ---- ----r - - - - - ----r�-- -_- �--- ---=- ° _ v � I r l \ \ 30, �1 o , aci ........ ... ......... . .. . . . . o ...... . } \ \ C I• - C ©2018 LPD Engineering PLLC 1932 First Ave, Suite 201, 1 m Seattle, WA 98I01 p. 206.725,1211 F. 206,973.5344 engineering pIIC www.lpdenglneedng.com I I I IN 0 0 rn r') 18+50 0 20 40 J! Scale 1 "=40' lj� _ r r RECOVER 1 ' JUN 24 2019 OPCITY MMMUN�Iy °ELMEW a FEDERAL WAY PUBLIC=SCH OLS= :- Description June 19, 2019 Figure SCHOOL BUS TURNING EXHIBIT MIRROR LAKE ELEM SCHOOL I n L.eg, usrrwFF June 21, 2019 Becky Chapin City of Federal Way 33325 8th Avenue South Federal Way, WA 98003 RECEIVED JUN 2 4 2019 CITY OF FEDERAL WAY COMMUNITY DEVELOPMENT RE: File #19-100188-00-UP; SECOND TECHNICAL REVIEW LETTER Mirror Lake Elementary School, 625 South 314'* Street, Federal Way Integrus Project No. 21737.00 117 S. Main St., Suite 100 Seattle, WA 98104 Dear Ms. Chapin: 206.628.3137 1 office 206.628.3138 1 fax Below are written responses to your technical review letter dated June 11, 2019. A complete plan set with clouds identifying all revisions has been submitted with the written responses. BeckyChapin, Community Development— Planning Division 1. A Hazardous Materials Inventory Statement has not been submitted. Per Federal Way City Code (FWRC)19.145.490, please fill out and return the enclosed form to complete information required to satisfy critical aquifer recharge area documentation. This can be completed prior to land use approval, or will become a condition placed on land use approval. Response: A Hazardous Materials Inventory Statement is included with this submittal. Cole ElliottPublic Works - Dev. Services Land Use 1. Within the Technical Information Report AIR) an area was identified along South 314'* Street as compensatory to the untreated/detained portion of 6t* Avenue South. A site visit indicates that approximately half of the compensatory area will not be conveyed to the School District's system as currently designed. Currently, the unopened portion of 8* Avenue South (directly east of the school) has no gutter or wedge to convey stormwater flows into the proposed School District's system. Response: To better illustrate the compensatory area between the school property and 8th Ave along 314th, an enlarged view of the compensatory area is shown in Figure 5C of the TIR. It shows the thickened edges along 314th that channel the storm water to the existing and replaced catch basins in the ROW near the northeast comer of the site. This allows the storm water from this area to be used as compensatory area. General 1. Please put permit number 19-100960-CO on all city approval blocks within the plan set. Response: Permit number 19-100960-CO was added to city approval blocks within the plan set. 1 ntV g, us ruAf Ms. Becky Chapin Page 2 June 21, 2019 2. In response to our previous comment that the flow control structure information was missing, you have added Detail 6 Sheet C206, but Details 2 and 4 (Chamber and Manifold) which correspond to Detail 6 are blank. Response: Details 2 and 4, on sheet C206, are now turned on. 3. None of the street paving shown on the plan sheets reflects the revisions made from the previous review and comments. Response: On 06-17-2019, LPD sent an email to Sarady Long and Cole Elliott, City of Federal Way, requesting clarification on this comment. Response from Cole Elliott, received 6- 18-19, appears to be related to the paving on 6th Ave S. Paving on 6th Ave S is responded to in Item 31, page 4 of 5, of this document, see below. Mirror Lake Elementary Right -Of -Way Phasing Plan 4. These drawings do not conform to the C100-PH 1 through C104-PH 2 drawings. Conflicting information is given when comparing the two sets of plans. Response: ROW phasing plans have been revised to conform to C100-PH1 and C100-PH2 drawings. Refer to updated ROW phasing plans 5. Page 1- No lay down, storage, or parking will be allowed within the existing city right-of-way. Correct plans accordingly. Response: Refer to updated Right -of -Way Phasing Plans. Plans have been corrected to show no lay down, storage, or parking within the right-of-way. 6. Page 1- Temporary fencing will be allowed to the edge of the right-of-way only, not to the edge of the paving as currently called out. Correct plans accordingly. Response: Refer to updated Right -of -Way Phasing Plans. Plans have been corrected to show temporary fencing to the edge of right right-of-way. 7. Page 2 - Again, temporary fencing shall be limited to the edge of the right-of-way. Response: Refer to updated Right -of -Way Phasing Plans. Plans have been corrected to show temporary fencing to the edge of right right-of-way. 8. Page 2 - The "Safe Passage" call out needs to have spell check performed. Response: Refer to updated Right -of -Way Phasing Plans. Spelling has been corrected. 9. Page 3 -The "Upon completion..." call out need to have the words "edge of asphalt" replaced with "edge of ROW." Response: Refer to updated Right -of -Way Phasing Plans. Plans have been corrected to call out edge of ROW. I megIA us 1URE Ms. Becky Chapin Page 3 June 21, 2019 10. Page 3 -Again, the "Safe Passage" call out needs to have spell check performed. Response: Refer to updated Right -of -Way Phasing Plans. Spelling has been corrected. 11. Page 4 - Currently, the city does not have a "31th" Street as called out in the 'The Last Phase" note. Please correct. Response: Refer to updated Right -of -Way Phasing Plans. Spelling has been corrected to identify 314"h Street. Technical Information Report (TIR) 12. Page 1- The acreage provided in Existing Conditions and Hydrology still does not match the Figure 3 in the TIR Worksheet. Please correct. Response: The Existing Conditions and Hydrology acreage were updated to match Figure 3. Both now match the acreage shown on the survey prepared by AHBL, dated 12-10-19. 13. Page 4 Core Requirement 7 - Do to historical performance issues on Federal Way School District projects, a bond and quantity worksheet will be required for all frontage improvements. Response: A bond quantity spreadsheet was completed for frontage improvements and is included in Appendix D of the TIR. 14. Figure 5A and Exhibit A of SWPPP are identical and do not represent the worst case scenario for the interim condition. As previously stated, the worst case scenario will have two buildings, a parking lot, a constriction lot, two construction entrances, two driveways, and a site that is 90 percent disturbed. Revise the interim case assumptions and resubmit. Response: Exhibit A of SWPPP was updated to represent the worst -case scenario disturbed for the interim condition (two buildings, a parking lot, a construction lot, two construction entrances, two driveways, and a site that is 90 percent). The required sediment tank volume was revised and updated on the TESC sheet. 15. Figure 5B - At least half of the proposed compensatory area fails to reach the School District's collection system and therefore, cannot be used as a compensatory area. Response: To better illustrate the compensatory area between the school property and 8th Ave along 314th, an enlarged view of the compensatory area is shown in Figure 5C of the TIR. It shows the thickened edges along 314th that channel the storm water to the existing and replaced catch basins in the ROW near the northeast comer of the site. This allows the storm water from this area to be used as compensatory area. 16. Why isn't the Geotechnical Report included with this TIR? Response: Due to the large size of the Geotechnical Report, it will be provided under a separate cover and included with the resubmittal to the City of Federal Way. i nteg , us axce�rac�uae Ms. Becky Chapin Page 4 June 21, 2019 Sheets C-001 through C-105 17. No comments. Sheets L-201 through L-205 18. No comments. Sheet A-004 19. No comments. Sheet C-200 20. This sheet is now missing the New and Replacement Area Summary provided on this sheet in previous submittals. Response: The New and Replaced Area Summary was added to Sheet C-200. 21. This sheet is now missing the Earthwork Quantities Summary provided on this sheet or prior submittals. Response: Earthwork Quantities Summary was added to Sheet C-200. Sheet C-201 22. Call outs for SD 11A,11 B, and 11 C all reference a detail which does not currently exist. This was identified in our previous review. Your response referenced a plan sheet which does not exist. Response: Call outs for SD 11A,11 B and 11 C all reference Detail 2 which was added to Detail Sheet C-206. Sheet C-202 23. Wedge curb or gutter does not exist across the unopened portion of 8'h Avenue South; therefore, the half of the compensatory area cannot be conveyed to the School District's system. The compensatory area is well short of the area not being treated or detained along 6* Avenue South. Response: To better illustrate the compensatory area between the school property and 8th Ave along 314th, an enlarged view of the compensatory area is shown in Figure 5C of the TIR. It shows the thickened edges along 314th that channel the storm water to the existing and replaced catch basins in the ROW near the northeast comer of the site. This allows the storm water from this area to be used as compensatory area. Sheet C-203 24. Call outs for SD 3A, 313, and 3C all reference a detail which does not currently exist. This was identified in our previous review. Your response referenced a plan sheet which does not exist. Response: Call outs for SD 3A, 3B and 3C all reference Detail 4 which was added to Detail Sheet C-206. Sheets C-204 and C-205 i nteg, us FESIVFr F Ms. Becky Chapin Page 5 June 21, 2019 25. No comments. Sheet C-206 26. Detail 6 inlet inverts or both control structures are not currently provided in the plan set in spite of the call out. Response: Detail 6, sheet C-206, inlet inverts on both control structures were added to the detail. 27. Details 2 and 4 are completely blank. Response: Details 2 and 4 were added to sheet C-206. Sheets C-207 and C-208 28. No Comments. Sheets C-300A through C-356 29. No comments. Sheets C-400 through C-407 30. No comments. Sheet C-500 31. FYI all storm mains within city right -of -may shall be concrete or reinforced concrete in conformance with the 2016 Development Standards and October 3, 2005, Policy Memo. Response: Drainage note "All storm mains within city right-of-way shall be concrete or reinforced concrete in conformance with the 2016 Development Standards and October 3, 2005, Policy Memo." Was added to Detail 2 of Sheet C-512 and Detail 4 of Sheet C-207. Sheet C-501 32. Call outs for SD#4F inlet size does not conform to pipe size called out on Sheet C-502. Response: Pipe size called out on Sheet C-502 was updated to match call out on SD#4F inlet pipe size on sheet C-501. Sheet C-502 33. In accordance with King County Road Design Standards (KCRDS) 7.03, an eight -inch diameter is only allowed on cross street laterals less than 66 feet in length. Correct the call out for the main between SD#6F and SD#4F. Response: Pipe size for the main between SD#6F and SD#4F was increased to 12" and the call - out was updated Sheet C-503 34. In accordance with King County Road Design Standards (KCRDS) 7.03, an eight -inch diameter is only allowed on cross street laterals less than 66 feet in length. Correct the call out integ, us ARCHIIECfp$f Ms. Becky Chapin Page 6 June 21, 2019 for the main between SD#9F and SD#10F. Response: Pipe size for the main between SD#9F and SD#10F was increased to 12" and the call - out was updated. 35. Correct the call out for the main size between SD#12F and Exist SDMH #1476. Response: The SD line from SD#12F is a lateral that connects to a new filterra, SD#13F. This lateral is less than 661-F, therefore an 8" SD lateral is proposed. Sheet C-505 and C-506 36. The submitted plans do not reflect the previous review comments regarding location of longitudinal joint under the wheel path of cars. Reply comments indicate that the pavement replacement will be an additional five -feet beyond the centerline, which should make the current overlay shown ten -feet wide, not five -feet as currently shown between Sta. 23+58 and Sta. 25+75. Response: 6th Ave S was designed, as direct by the City, as Cross Section Type S. Therefore, from the CL of ROW it has a 10' travel lane, 8' parking lane, 4' planter and 5' sidewalk. The longitudinal paving joint shown between Sta. 23+58 and Sta. 25+75 on 6th Ave is 5' west of the centerline of ROW/road section. Therefore, with a Cross Section Type S, the longitudinal paving joint is located in the center of the south travel lane, not under the wheel path. Proposed pavement on 6th Ave S and S 314th Street are a full pavement section, not an overlay. Sheet C-507 through C-509 37. No comments. Sheet C-510 38. Detail 6 calls out "cub and gutted," which must be corrected to "curb and gutter." This is a repeat comment from our previous review. Response: Call out was corrected as "curb and gutter". Sheets C-511 and C-512 39. No comments. Sheets C-600 through C-604 40. No comments. Sarady Long, Public Works — Traffic division Land Use 1. The submitted school bus turning exhibit did not include the adjacent street intersection as previous requested by the city. The submitted plan only depicted the school bus turning path at the school bus only driveway. The plan must be updated to include a school bus turning integ!gC�'siUflE Ms. Becky Chapin Page 7 June 21, 2019 diagram for the southbound and eastbound right turn at 8'h Avenue South and South 3141, Street. The turning exhibit must clearly show the school bus entering and leaving the site/intersection without encroaching onto opposing traffic lanes or mounting a curb. Response: A School Bus turning exhibit for the southbound and eastbound right turn at 8th Avenue South and South 314th Street are included with this Submittal #3. The turning exhibit shows the school bus entering and leaving the intersection without encroaching onto opposing traffic lanes or mounting a curb. Paving was added at the NW and SW comer of this intersection, and a power pole and two signs were relocated, all to accommodate the bus turning movements listed above. 2. The submitted school bus turning exhibit clearly depicts a school bus travelling in to the opposing traffic lane when entering and leaving the driveway. This is not acceptable and poses safety concerns with oncoming vehicles. The school bus only driveway must be designed to accommodate the school buses turning in and out of the site. If this conflict is not expected to occur, the plan must clearly state as such and signage shall be installed informing drivers of the restrictions. Response: This conflict is not expected to occur, signage was added to inform drivers of the restrictions. 3. Sheet C-506. The proposed raised crosswalk on South 314'* Street and 7* Avenue South must be relocated further east. As proposed, students waiting to cross South 314'* Street will be within the northbound right turn vehicle path. The new raised crosswalk location shall be reviewed and approved by the city at engineering review. (Land Use Condition) Response: Proposed raised crosswalk on South 314th Street and 7th Avenue South was relocated east. It was relocated out of the northbound right turn vehicle path. 4. Street light plan must be designed and submitted to the city for review and approval at engineering review. (Land Use Condition) Response: See Sheet E101 for street lighting plan. General 1. Sheet C-505: Replace the advisory school zone flasher on 6* Avenue South and South 314th Street with school zone flasher (see picture below) and include "End School Zone" signs. The flashes locations shall be per WAC 468-95-330 and RCW 46.51.440. Dowl-D. 79250 nteg, us A R rrURE Ms. Becky Chapin Page 8 June 21, 2019 Response: Advisory school zone flasher was replaced with school zone flasher on 6th Avenue South and South 314th Street. "End School Zone" signs were added. Flasher were located per WAC 468-95-330 and RCW 46.61.440. 2. Sheets C-505 and C-506: Remove the proposed parking striping consisting of four -inch white edge line on 6th Avenue South and South 314th Street. Response: The proposed parking striping consisting of four -inch white edge line on 6th Avenue South and South 314th Street was removed. 3. Provide signs at proposed driveways on South 314th Street informing drivers of school bus/staff and parent pick-up and drop-off entrances. Response: Signs added at proposed driveways on South 314th Street informing drivers of school bus/staff and parent pick-up and drop-off entrances 4. Parking striping and signage shall meet MUTCD. Response: Note was added to Detail 3 of Sheet C-407. Please feel free to contact me if you have any questions or further clarifications. Sincerely, Sam Schafer, AIA Project Manager INTEGRUS ARCHITECTURE, P.S. Documents: Resubml0al Drawings Revised Technical Information Report dated 06/2112019 Ceotechnical Report dated 2126/2019 Hazardous Materiels Inventory Statement School Bus Tuming Exhibit PC: Becky Chapin, City of Federal Way, Senior Planner Ray Vefik, Federal Way Public Schools 44k CITY Federal a. Way DEPARTMENT OF COMMUNITY DEVELOPMENT RECEIVED 33325 8ih Avenue South L� Federal Way, WA 98003 253-835-2607;Fax 253-835-2609 CITY OF FEDEPIAL WAY COMMUNITY DEVELOPMENT HAZARDOUS MATERIALS INVENTORY STATEMENT CRITICAL AQUIFER RECHARGE AND WELLHEAD PROTECTION AREAS I. WHY SHOULD THIS INVENTORY STATEMENT BE FILLED OUT? Critical Aquifer Recharge (CARAs) and Wellhead Protection Areas (WHPAs) are considered "critical areas" pursuant to Federal Way Revised Code (FWCC) Title 14, "Environmental Policy." This inventory statement must be filled out by the applicant or agent for any proposed activity listed in Section II of this handout, and which are located within Wellhead Capture Zones 1, 5, and 10 as shown on the Critical Aquifer Recharge and Wellhead Protection Areas Maps. Please refer to the handout on Critical Aquifer Recharge and Wellhead Protection Areas for a description of the review process. II. ACTIVITIES GOVERNED BY CARA AND WHPA REGULATIONS The inventory statement must be filled out for the following activities: • Construction of any residential structure, including single-family development • Construction of any bam or other agricultural structure • Construction of any office, school, commercial, recreational, service, or storage building ■ Construction of a parking lot of any size • Other minor new construction (see WAC 197-11-800[21) ■ Additions or modifications to or replacement of any building or facility (does not include tenant improvements) ■ Demolition of any structure • Any landfill or excavation • Installation of underground tanks • Any division of land, including short plats • Change of use, which involves repair, remodeling, and maintenance activities • Dredging • Reconstruction/maintenance of groins and similar shoreline protection structures ■ Replacement of utility cables that must be buried under the surface of the bedlands • Repair/rebuilding of major dams, dikes, and reservoirs • Installation or construction of any utility, except for on -going operation and maintenance activities of public wells by public water providers • Personal wireless service facilities Project Name MIV4�t, FL Applicant I� Project Location [n�r%� �Tracking No. III. TYPES AND QUANTITIES OF HAZARDOUS �MATERIALS Please provide the approximate quantity of the types of hazardous materials or deleterious substances that will be stored, handled, treated, used, produced, recycled, or disposed of in connection with the proposed activity. If no hazardous materials will be involved, please proceed to Section IV. MATERIAL LIQUID (gallons) SOLID (pounds) (1) Acid or basic solutions or solids (2) Antifreeze or coolants (3) Bleaches, peroxides, detergents, surfactants, disinfectants, bactericides, algaecides (4) Brake, transmission, hydraulic fluids (5) Brine solutions (6) Corrosion or rust prevention solutions (7) Cutting fluids (8) Deicing materials (9) Dry cleaning or cleaning solvents (10) Electroplating or metal finishing solutions (11) Engraving or etching solutions (12) Explosives (13) Fertilizers �$ (14) Food or animal processing wastes (15) Formaldehyde (16) Fuels, additives, oils, greases 5 L (17) Clues, adhesives, or resins (18) Inks, printing, or photocopying chemicals (19) Laboratory chemicals, reagents or standards (20) Medical, hospital, pharmaceutical, dental, or vetcrina fluids or wastes (21) Metals (hazardous e.g. arsenic, copper, chromium, lead, mercury, silver, etc.) (22) Paints, pigments, dyes, stains, varnish, sealers. (23) Pesticides, herbicides or poisons L4.0 ,_ (24) Plastic resins, plasticizers, or catalysts (25) Photo development chemicals (26) Radioactive sources (27) Refrigerants, cooling water (contact) (28) Sludges, still bottoms (29) Solvents, thinners, paint removers or strippers (30) Tanning (leather) chemicals (31) Transformer, capacitor oils/fluids, PCB's (32) Waste oil (33) Wood preservatives (34) List OTHER hazardous materials or deleterious substances on a se arate sheet. Bulletin #056 —January 1, 2011 Page 2 oF3 k;lHandoutslHazardous Materials Inventory Statement Project Name Mi /;CA400licant " C��f tr^ Project Location r �7. [ ,A4racking No. L.4-1AII' IV. FURTHER INFORMATION Provide the approximate quantity of fill and source of fill to be imported to the site. Approximate Quantity of Imported Fill Source of Fill 16,500 CY Corliss Resource Inc. Check box #1 if you do not plan to store, handle, treat, use, produce, recycle, or dispose of any of the types and quantities of hazardous material or deleterious substance listed in Section III. Check box(s) #2 through #5 (and fill in appropriate blanks) of the below table if they apply to your facility or activity. #1 [ ] The proposed development will not store, handle, treat, use, produce, recycle, or dispose of any of the types and quantities of hazardous materials or deleterious substances listed above. #2 [ x ] Above ground storage tanks, having a capacity of _ 1000 gallons will be installed. #3 [ ] Construction vehicles will be refueled on site. Storage within wholesale and retail facilities of hazardous materials, or other deleterious #4 [ ] substances, will be for sale in original containers with a capacity of _ gallons liquid or _mounds solid. The presence of chemical substances on this parcel is/will be for "temporary" non -routine #5 [ x ] maintenance or repair of the facility (such as paints and paint thinners) and are in individual containers with a capacity of 10 gallons liquid or mounds solid. Check any of the following items that currently exist or are proposed in connection with the development of the site. #1 [x ] Stormwater infiltration system (e.g., french drain, dry well, stormwater Swale, etc.) #2 [ x] Hydraulic lifts or elevator, chemical systems, or other machinery that uses hazardous materials #3 [ ] Cathodic protection wells #4 [ ] Water wells, monitoring wells, resource protection wells, piezometers #5 [x ] Leak detection devices, training for employees for use of hazardous materials, self-contained machinery, etc. SIGNA Signature Print Narne Date Ifyou have any questions about filling out this application form, please contact the Department of Community Development's Permit Center at 253-835-2607, or permitcenter*ityoffedealway.com. Please be advised that an application for a development permit lacking the required information will not be accepted. Bulletin #056 —January 1, 2011 Page 3 of 3 k:\Handouts\Hazardous Materials Inventory Statement . CITY OF . Federal Way Centered on Opportunity Mr. Ray Vefik CBRE/Heery 1420 Fifth Avenue, Suite 1700 Seattle, WA 98101 rvefik@fns.org FILE Re: File #19-100188-00-UP; SECOND TECHNICAL REVIEW LETTER Mirror Lake Elementary School, 625 South 314th Street, Federal Way Dear Mr. Vefik: CITY HALL 33325 8th Avenue South Federal Way, WA 98003-6325 (253) 835-7000 www. cityoffederalway.. com Jim Ferrell, Mayor June 11, 2019 City staff has completed review of your Apxil 4, 2019, resubmittal package for the Mirror Lake Elementary School rebuild project. Unless otherwise noted, the following comments provided by staff reviewing your project must be addressed prior to issuing the land use application decision. Please direct questions regarding any of the technical comments to the appropriate staff representative. Community Development — Planning Division Becky Chapin, 253-835-2641, becky.chapin@cityoffederalway.com 1. A Hazardous Materials Inventory Statement has not been submitted. Per Federal lay City Codi (FWRC) 19.145.490, please fill out and return the enclosed form to complete information required to satisfy critical aquifer recharge area documentation. This can. be completed prior to land use approval, or will become a condition placed on land use approval. Public Works — Development Services Cole Elliott, 253-835-2730, cole.elliott@cityoffederalway.com Development Services has reviewed the May 28, 2019, resubmitted land use information for the above entitled project. The following item must be addressed prior to the land use approval: Land Use L Within the Technical Information Report (TLR) an area was identified along South 314th Street as compensatory to the untreated/detained portion of 611 Avenue South. A site visit indicates that approximately half of the compensatory area will not be conveyed to the School District's system as currently designed. Currently, the unopened portion of 8th Avenue South (directly east of the school) has no gutter or wedge to convey stormwater flows into the proposed School District's system. The following items must be addressed prior to the buildingpermit approval: General 1. Please put permit number 19-100960-CO on all city approval blocks within the plan set. Mr. Ray Vefik Page 2 of 6 June 11, 2019 2. In response to our previous comment that the flow control structure information was missing, you have added Detail 6 Sheet C206, but Details 2 and 4 (Chamber and Manifold) which correspond to Detail 6 are blank. 3. None of the street paving shown on the plan sheets reflects the revisions made from the previous review and comments. ` - Mirror Lake Elementary Right -of -Way Phasing Plan 4. These drawings do not conform to the C100-PH 1 through C104-PH 2 drawings. Conflicting information is given when comparing the two sets of plans. 5. Page 1 — No lay down, storage, or parking will be allowed within the existing city right-of-way. Correct plans accordingly. 6. Page 1 — Temporary fencing will be allowed to the edge of the right-of-way only, not to the edge of the paving as currently called out. Correct plans accordingly. 7. Page 2 — Again, temporary fencing shall be limited to the edge of the right-of-way. 8. Page 2 — The "Safe Passage" call out needs to have spell check performed. 9. Page 3 — The "Upon completion..." call out need to have the words "edge of asphalt" replaced with "edge of ROW." 10. Page 3 — Again, "Safe Passage" call out should have spell check performed on it. 11. Page 4 — Currently, the city does not have a "31th" Street as called out in the "The Last Phase" note. Please correct. Technical Information Report (TIR) 12. Page 1 — The acreage provided in Existing Conditions and Hydrology still does not match the Figure 3 in the TIR Worksheet. Please correct. 13. Page 4 Core Requirement 7 — Do to historical performance issues on Federal Way School District projects, a bond and quantity worksheet will be required for all frontage improvements. 14. Figure 5A and Exhibit A of SWPPP are identical and do not represent the worst case scenario for the interim condition. As previously stated, the worst case scenario will have two buildings, a parking lot, a construction lot, two construction entrances, two driveways, and a site that is 90 percent disturbed. Revise the interim case assumptions and resubmit. 15. Figure SB — At least half of the proposed compensatory area fails to reach the School District's collection system and therefore, cannot be used as a compensatory area. 16. Why isn't the Geotechnical Report included with this TIR? Sheets C-001 through C-105 17. No comments. 19-100188-00-UP Doc. I.D. 79250 Mr. Ray Vefik Page 3 of 6 June 11, 2019 Sheets L-201 through L-205 18. No comments. Sheet A-004 19. No comments. Sheet C-200 20. This sheet is now missing the New and Replacement Area Summary provided on this sheet in previous submittals. 21. This sheet is now missing the Earthwork Quantities Summary provided on this sheet on prior submittals. Sheet C-201 22. Call outs for SD 11A, 11B, and 11C all reference a detail which does not currently exist. This was identified in our previous review. Your response referenced a plan sheet which does not exist. Sheet C-202 23. Wedge curb or gutter does not exist across the unopened portion of 8th Avenue South; therefore, the half of the compensatory area cannot be conveyed to the School District's system. The compensatory area is well short of the area not being treated or detained along 6th Avenue South. Sheet C-203 24. Call outs for SD 3A, 3B, and 3C all reference a detail which does not currently exist. This was identified in our previous review. Your response referenced a plan sheet which does not exist. Sheets C-204 and C-205 25. No comments. Sheet C-206 26. Detail 6 inlet inverts on both control structures are not currently provided in the plan set in spite of the call out. 27. Details 2 and 4 are completely blank. Sheets C-207 and C-208 28. No Comments. Sheets C-300A through C-356 29. No comments. 19-100188-00-1IP Doc. I.D. 79250 Mr. Ray Vefik Page 4 of 6 June 11, 2019 Sheets C-400through C-407 30. No comments. Sheet C-500 31. FYI all storm mains within city right-of-way shall be concrete or reinforced concrete in conformance with the 2016 Development Standards and October 3, 2005, Policy Memo. Sheet C-501 32. Call outs for SD#4F inlet size does not conform to pipe size called out on Sheet C-502. Sheet C-502 33. In accordance with King County Road Design Standards (KCRDS) 7.03, an eight -inch diameter is only allowed on cross street laterals less than 66 feet in length. Correct the call out for the main between SD#6F and SD#4F. Sheet C-503 34. In accordance with King County Road Design Standards (KCRDS) 7.03, an eight -inch diameter is only allowed on cross street laterals less than 66 feet in length. Correct the call out for the main between SD#9F and SD#10F. 35. Correct the call out for the main size between SD#12F and Exist SDMH #1476. Sheet C-505 and C-506 36. The submitted plans do not reflect the previous review comments regarding location of longitudinal joint under the wheel path of cars. Reply comments indicate that the pavement replacement will be an additional five -feet beyond the centerline, which should make the current overlay shown ten -feet wide, not five -feet as currently shown between Sta. 23+58 and Sta. 25+75. Sheet C-507 through C-509 37. No comments. Sheet C-510 38. Detail 6 calls out "cub and gutter," which must be corrected to "curb and gutter." This is a repeat comment from our previous review. Sheets C-511 and C-512 39. No comments. Sheets C-600 through C-604 40. No comments. 19-100188-00-UP Doc. I.D. 79250 Mr. Ray Vefik Page 5 of 6 June 11, 2019 Public Works — Traffic Division Sarady Long, 253-835-2743, sarady.long@ciytoffederalway.com The Public Works Traffic Division has finished its review of the resubmitted materials and provides the following technical review comments. Land Use 1. The submitted school bus turning exhibit did not include the adjacent street intersection as previous requested by the city. The submitted plan only depicted the school bus turning path at the school bus only driveway. The plan must be updated to include a school bus turning diagram for the southbound and eastbound right tam at 8h Avenue South and South 314th Street. The turning exhibit must clearly show the school bus entering and leaving the site/intersection without encroaching onto opposing traffic lanes or mounting a curb. 2. The submitted school bus turning exhibit clearly depicts a school bus travelling in to the opposing traffic lane when entering and leaving the driveway. This is not acceptable and poses safety concerns with oncoming vehicles. The school bus only driveway must be designed to accommodate the school buses turning in and out of the site. If this conflict is not expected to occur, the plan must clearly state as such and signage shall be installed informing drivers of the restrictions. 3. Sheet C-506: The proposed raised crosswalk on South 314th Street and 7t11 Avenue South must be relocated further east. As proposed, students waiting to cross South 314th Street will be within the northbound right turn vehicle path. The new raised crosswalk location shall be reviewed and approved by the city at engineering review. (Land Use Condition) 4. Street light plan must be designed and submitted to the city for review and approval at engineering review. (Land Use Condition) General 1. Sheet C-505. Replace the advisory school zone flasher on 6th Avenue South and South 314th Street with school zone flasher (see picture below) and include "End School Zone" signs. The flasher locations shall be per WAC 468-95-330 and RCW 46.61.440. 19-1001BB-00-UP Doc. I.D. 79250 Mr. Ray Vefik Page 6 of 6 June 11, 2019 2. Sheets C-505 and C-506. Remove the proposed parking striping consisting of four -inch white edge line on 61h Avenue South and South 314th Street. 3. Provide signs at proposed driveways on South 314th Street informing drivers of school bus/staff and parent pick- up and drop-off entrances. 4. Parking striping and signage shall meet MUTCD. APPLICATION STATUS The review period for the Use Process III application has stopped and the application is on hold until requested items are resubmitted. When resubmitting requested information, please provide a written response to each of the above - referenced items, four copies of corrected reports, and six copies of corrected full size plans with the enclosed resubmittal form. Pursuant to FWRC 19.15.050, if an applicant fails to provide additional information to the city within 180 days of being notified that such information is requested, the application shall be deemed null and void and the city shall have no duty to process, review, or issue any decisions with respect to such an application. If you have any questions regarding this letter or your development project, please contact me at 253-835-2641, or becky.chapin@cityoffederalway.com. Sincerely, Becky Chapin Senior Planner enc: Hazardous Materials Inventory Statement, Bulletin #56 Resubmittal Information Form, Bulletin #129 c: Brian Davis, Community Development Director Cole Elliott, Development Services Manager Sarady Long, Senior Transportation Planning Engineer Mike Benzien, Federal Way Public Schools, mbeniien a�f+vps.r� Casey Moore, Federal Way Public Schools, cmQore(&f W&.gxg 19-100188-00-UP Doc. I.D. 79250 CITY OF FEDERAL WAY COMMUNITY DEVELOPMENT DEPARTMENT RESUBMITTAL #2 DEVELOPMENT REVIEW COMMITTEE TRANSMITTAL DATE: May 30, 2019 TO: Cole Elliott, Development Services Manager Greg Kirk, Plans Examiner Rick Perez, City Traffic Engineer Brian Asbury, Lakehaven Water & Sewer District Chris Cahan, South King Fire & Rescue FROM: Becky Chapin, Senior Planner COMMENT: Email any additional technical comments or let me know if ready to approve. FILE NUMBER(s): 19-100188-00-UP RELATED FILE NOS.: 19-100960-00-CO PROJECT NAME: Mirror Lake Elementary School PROJECT ADDRESS: 625 South 314th Street ZONING DISTRICT.- RS 7.2 PROJECT DESCRIPTION: RESUBMITTAL #2 of document responding to a technical comment letter dated May 2, 2019. LAND USE PERMITS: Use Process III (School District Lead Agency on SEPA) PROJECT CONTACT. Ray Vefik CBRE 1420 Fifth Avenue, Suite 1700 Seattle, WA 98101 rvefik@fwps.org MATERIALS SUBMITTED: Resubmittal Form Response Letter Memo regarding additional ROW Memo regarding using School Bus S-BUS 40 School Bus Turning Exhibit Revised TIR Revised TIA Letter from Dr. Tammy Campbell, re: flow control facility Revised Plans i me `./ I RuIIYRF May 24, 2019 Becky Chapin City of Federal Way 33325 8th Avenue South Federal Way, WA 98003 RESUBMITTED MAY 2 8 2019 COMMUNfTOF Y f)e AEA T RE. File #19-100188-00-UP; SECOND TECHNICAL REVIEW LETTER Mirror Lake Elementary School, 625 South 314'* Street, Federal Way Integrus Project No. 2173 7. 00 117 S. Main St., Suite 100 Seattle, wn 96104 Dear Ms. Chapin: 206.628.3137 office 206.626.3138 fax Below are written responses to your technical review letter dated May 2, 2019. A complete plan set with clouds identifying all revisions has been submitted with the written responses. Cole Elliott, Public Works - Dev. Services 1. The predevelopment site area must be modeled a forest rather than as submitted (a portion as forest and the remainder as Till Grass). Response: Stormwater Target Surfaces addressed by letter to DR Campbell dated 4/29/19 and in LPD letter dated 4/29/19, refer to TIR Appendix F. 2. The sediment trap included in the Technical Information Report (TIR) has been sized for the two-year storm. In accordance with King County Surface Water Design Manual (KCSWDM) D.2.1.5.2, because of the total area of the site, the proper storm type would be the 10-year storm. Response: The sediment facility has been re -sized using the 10-year peak flow per CSWDM D.2.1.5.2. Additional details of the sediment sizing methodology have been documented in the SWPPP and refers to Appendix B for the MGS Flood output and calculations. 3. Scholar safety has repeatedly been pointed out as an issue for the city with regard to this site. The Logistics Sheets (May 2019 -June 2019, June 2019 - June 2020, and June 2020- September 2020) provided by Forma Construction do not clearly demonstrate how the walking scholars will safely transverse South 314th Street and 6th Avenue South during construction. Response: See attached ROW Phasing plans. Per meetings with the CoFW and FWPS, the safe routes to school will not use 6th Ave S during construction and will direct students to access the site via 7th PI S to access the school from the south. Safe public pedestrian access will be maintained along the west side of 6th Ave S. See attached ROW phasing plans which show safe passage for scholars along S 314th St. Per coordination with the CoFW the safe route will be provided via delineated 2-10' lanes, a 2' buffer and a 5' walk path. A double 4" yellow centerline with Type II RPMs between the lanes. The buffer is a set of 4" white lines measuring 24" from outside to CntegillCHliECiUflE Ms. Becky Chapin Page 2 May 24, 2019 outside with 8" diagonal hatches at 10' on center with a breakaway delineator centered on each hatch. 4. The current design indicates all flow from Detention #1 PC goes into Detention #2 PC prior to release to the city's system. This appears to short circuit the required detention time for all areas designed to contribute to Detention #2. Response: Outfall from Detention #1 and Detention #2 are redesigned to outfall into city's existing SD system separately, refer to C201 and C203 5. A segment of 6th Avenue South (Sta. 20+30 to Sta. 23+55) is not detained and is not treated for water quality, but the plans do not provide a clear indication of the size of the mitigation area being proposed along South 314th Street. Response: A portion of frontage improvements along 6th Ave S that cannot be physically routed to the proposed detention facilities, and thus will be bypassed. These areas will be compensated by routing a portion of the existing S 314th Street roadway located in the northeast of the project site. Figure 5B in the TIR has been updated to clarify the delineation of compensatory area. 6. Along both 6th Avenue South and South 314th Street, the design includes catch basins with solid lids. This does not meet Development Standards Section 4.3.3.B. Response: Offsite stormwater revised to bypasses site in new storm drainage line located between back of sidewalk and property line, refer to C-501 thru C-504. General 1. Legend symbols and call outs on the plan sheets do not line up. Response: Plan sheet legend symbols and call -outs adjusted to line up. 2. Neither the TIR nor the plan sheet set provides any information on the control structure (orifice diameter, orifice elevations) for Detention #1 or Detention #2. Response: A flow control structure detail for Detention #1 and Detention #2 has been added to Detail 6 Sheet C206. Logistic Plan Sheets 3. Again, a review of all three time periods (May 2019 -June 2019, June 2019 -June 2020, and June 2020 -September 2020) does not clearly demonstrate how walking scholars will be able to safely navigate the construction areas along South 314th Street and 6th Avenue South. Response: See attached ROW Phasing plans. Per meetings with the CoFW and FWPS, the safe routes to school will not use 61h Ave S during construction and will direct students to access the site via 71h PI S to access the school from the south. Safe public pedestrian access will be maintained along the west side of 6"h Ave S. See attached ROW phasing plans which show safe passage for scholars along S 3141h St. Per coordination with the CoFW the safe route will be provided via delineated 2-10' lanes, 1 n t o g aace+rroar Ms. Becky Chapin Page 3 May 24, 2019 a 2' buffer and a 5' walk path. A double 4" yellow centerline with Type II RPMs between the lanes. The buffer is a set of 4" white lines measuring 24" from outside to outside with 8" diagonal hatches at 10' on center with a breakaway delineator centered on each hatch. 4. A review of the Logistic Plans May 2019 through June 2020 seems to indicate that the impervious and disturbance area assumed for the sediment trap provided in the TIR are incorrect. Response: The disturbance area between coordinated between the Logistics dwgs and TIR has been coordinated with the Contractor. The sediment trap sizing calculations revised to assume the worst -case scenario of impervious coverage during the interim condition with the existing buildings and proposed building on -site. Additional description of the sediment facility sizing and an area summary exhibit (Exhibit A) has been added to the SWPPP. 5. Logistic Plan June 2019 - June 2020 indicates construction roads over the areas to be used for the detention chambers. Verify this is correct. Response: This is correct. The areas above the Stormtech vault(s) will be protected with a layer of ATB. Sheet L-100 6. Indicates that the future play field is currently occupied by the existing building and portables. None of the plan sheets indicate how the natural soil porosity will be reestablished. Please clarify. Response: Revised the General Landscape Notes on L200 to include Note #5 to address soil compaction which is also covered in our written specifications. Technical Information Report (TIR) 7. Page 1 Section 1 Project Overview refers to Figure 1 - TIR Worksheet. A review of the TIR worksheet indicates Figure 1 does not exist. Response: The TIR worksheet has been clarified to be Figure 1 in the report. 8. Page 1 Existing Conditions and Hydrology states that the site is 8.34 acres, but Figure 3 - TIP Worksheet states 8.39 acres. Which is correct? Response: Per King County's Assessor Report the site is approximately 363,271 (8.34 acres). Per a survey conducted by AHBL on December 2018, the site is approximately 362,855 SF (8.33 acres). This has been clarified in the report and Figure 3 show the site area based on King County's Assessor Report. 9. Page 2 Proposed Conditions and Hydrology should be amended to include the requirements of Federal Way Revised Code (FWRC)16.15.010, and the City of Federal Way Addendum to the KCSWDM. irate(j, us A RCH+TFC FORE Ms. Becky Chapin Page 4 May 24, 2019 Response: The TIR report has been revised to refer to the City of Federal Way 2017 Addendum, 10. Page 3 Core Requirement 3 should be amended to include the requirements of the City of Federal Way Addendum to the KCSWDM. Response: The TIR report has been revised to refer to the City of Federal Way 2017 Addendum. 11. Page 4 Right -of -Way Improvements should address the City of Federal Way Addendum 1.1.1Aand 1.1.1B. Response: The TIR report has been revised to refer to the City of Federal Way 2017 Addendum. 12. Page 4 Core Requirement 7 - the statement appears to be incomplete. Response: The TIR report has been revised to refer to the City of Federal Way 2017 Addendum. 13. Page 5 Site Improvements should also be amended to reflect the city's Addendum. Response: The TIR report has been revised to refer to the City of Federal Way 2017 Addendum. 14. Page 5 Right -of -Way Improvements should also be amended to reflect city's Addendum. Response: The TIR report has been revised to refer to the City of Federal Way 2017 Addendum. 15. Page 9 Section 4A acknowledges that the predevelopment surfaces must be modeled as "forest." The model claims three -plus acres of the site is "Till Grass," and the Logistic Plans seem to indicate that approximately 90-percent of this site will be disturbed by construction. Please rectify the conflicting information submitted. Response: Stormwater Target Surfaces addressed by letter to DR Campbell dated 4/29/19 and in LPD letter dated 4/29/19, refer to TIR Appendix F. The disturbance area between coordinated between the Logistics dwgs and TIR has been coordinated with the Contractor. The sediment trap sizing calculations revised to assume the worst -case scenario of impervious coverage during the interim condition with the existing buildings and proposed building on -site. Additional description of the sediment facility sizing and an area summary exhibit (Exhibit A) has been added to the SWPPP. 16. Page 10 Table 1 again fails to provide an accurate assessment of the interim condition June 2019-June 2020 when the existing school, the proposed school, the existing parking area, the existing entrance, two construction entrances, the construction parking area, the construction trailer area, and the proposed construction routes all exist on this site. The city does not want to have a repeat of the issues experienced during the Federal Way High School project. Response: The disturbance area between coordinated between the Logistics dwgs and TIR has been coordinated with the Contractor. The sediment trap sizing calculations revised to assume the worst -case scenario of impervious coverage during the interim condition I nteV ANuTECTUflE Ms. Becky Chapin Page 5 May 24, 2019 with the existing buildings and proposed building on -site. Additional description of the sediment facility sizing and an area summary exhibit (Exhibit A) has been added to the SWPPP. 17. Page 18 Flow Control System Paragraph 3 indicates the uncompensated area along 6th Avenue South and the compensatory area to be located along South 314th Street, but no figure has been provided for the location of the compensatory area to allow for confirmation that the area is equal to or exceeds the by-pass area. Response: Figure 5B in the TIR has been updated to clarify the delineation of compensatory area. 18. Page 22 Section 6 fails to include the Underground Storage Tank investigation and clean-up. Response: Reference to supplemental Underground Storage Tank investigation report has been added to Page 22. 19. TIR Worksheet Page 4 Part 14 includes a detention tank. There is no detention tank shown on the final storm design. Response: The TIR Worksheet has been revised to remove the detention tank as an option. 20. Appendix A, Sheet C103 Ph 1 indicates a sediment trap of 13,624 cubic feet, but Appendix B Sediment Sizing Calculations indicates the design storm is the two-year storm. In accordance with KCSWDM D.2.1.5.2, the proper design storm would be the 10-years storm due to the total site area. Response: The sediment facility has been re -sized using the 10-year peak flow per KCSWDM D.2.1.5.2. Additional details of the sediment sizing methodology have been documented in the SWPPP and refers to Appendix B for the MGSFIood output and calculations. 21. Appendix B Detention #1 FC and Conveyance Analysis Pre -Development identifies 0.793 acres as 'Till Grass," but none of the packet plan sheets shows an area of that size which is not impacted by construction. Response: The disturbance area between coordinated between the Logistics dwgs and TIR has been coordinated with the Contractor. The sediment trap sizing calculations revised to assume the worst -case scenario of impervious coverage during the interim condition with the existing buildings and proposed building on -site. Additional description of the sediment facility sizing and an area summary exhibit (Exhibit A) has been added to the SWPPP. 22. Appendix B Detention FC and Conveyance Analysis Pre -Development identifies 2.657 acres as "Till Grass," but none of the packet plan sheets indicates any area of that size which is not impacted by construction. Response: The disturbance area between coordinated between the Logistics dwgs and TIR has been coordinated with the Contractor. The sediment trap sizing calculations revised to i nteg , us AR 7 fy RE Ms. Becky Chapin Page 6 May 24, 2019 assume the worst -case scenario of impervious coverage during the interim condition with the existing buildings and proposed building on -site. Additional description of the sediment facility sizing and an area summary exhibit (Exhibit A) has been added to the SWPPP. 23. The flow to all Media Filter Drains should be recalculated assuming the entire site is "forest" for the predevelopment condition. Response: Stormwater Target Surfaces addressed by letter to DR Campbell dated 4/29/19 and in LPD letter dated 4/29/19, refer to TIR Appendix F. 24. The MGS model for the sediment trap appears to be undersized due to the following assumptions: a. Assuming 3.400 acres of the predeveloped site is "Till Grass." b. Assuming a two-year storm rather than a 10-year storm is adequate for settlement on such a large site area. c. Assuming that the post development impervious area (4.495 acres) is adequate to use in the model for the interim situation with two buildings, existing drive, two construction driveways, existing parking lot, construction layout areas, construction parking lot, construction trailers, and sediment pond. Response: a. Stormwater Target Surfaces addressed by letter to DR Campbell dated 4/29/19 and in LPD letter dated 4/29/19, refer to TIR Appendix F. b. The sediment facility has been re -sized using the 10-year peak flow per KCSWDM D.2.1.5.2. Additional details of the sediment sizing methodology have been documented in the SWPPP and refers to Appendix B for the MGSFIood output and calculations. c. The disturbance area between coordinated between the Logistics dwgs and TIR has been coordinated with the Contractor. The sediment trap sizing calculations revised to assume the worst -case scenario of impervious coverage during the interim condition with the existing buildings and proposed building on -site. Additional description of the sediment facility sizing and an area summary exhibit (Exhibit A) has been added to the SWPPP. 25. No sizing calculations have been submitted for the Baker Tank or equal. Again, assumed flow should be the 10-year storm in accordance with KCSWDM D.2.1.5.2. Response: The sediment facility is designed to be a sediment pond. Sizing and details are provided on Sheets C-103-PH1, C-103-PH2, and C-105. The sediment facility has been re -sized using the 10-year peak flow per KCSWDM D.2.1.5.2. Additional details of the sediment sizing methodology have been documented in the SWPPP and refers to Appendix B for the MGSFIood output and calculations. integ,us Rrune Ms. Becky Chapin Page 7 May 24, 2019 SheetL-200 26. Street tree installation shall conform to Standard Detail 3-29, including the root barrier, Response: Standard Detail 3-29 has been added, including the root barrier. Street tree type and size has been revised to meet the COFW standards. SheetL-205 27. Add Street Tree Standard Detail 3-29. Response: Standard Detail 3-29 has been added, including the root barrier. Street tree type and size has been revised to meet the COFW standards. Sheet L-206 through Sheet L-403 28. No comments. SheetA-003 29. No comments. SheetC-200 30. No comments. Sheet C-201 31. SD #11 calls out a six-inch diameter pipe from the south. It is unclear where this pipe comes from or its purpose. Response: The 6-inch pipe is an underdrain for the Stormtech Chambers. Additional detail of this pipe can be found on sheet C-208. 32. There are three separate inlet manholes on Detention #1 which do not have any call outs (rim elevation, invert, pipe size, etc.). Response: Invert elevation and sizing information for the Stormtech Chambers have been added in the Stormtech Chamber details, sheet C-209. 33. The detained flow from Detention #1 is currently designed to flow into Detention #2; this would lead to short circuiting the detention time for the area served by Detention #2. Response: Outfall from Detention #1 and Detention #2 are redesigned to separately outfall directly into the city's existing SD system, refer to C-201 and C-203 SheetC-202 34. No comments. SheetC-203 35. Currently there are two SD#6 shown on this sheet. Response: SD# callouts have been revised to eliminate repeated numbers. 'us i nteg I RCHITecTuxe Ms. Becky Chapin Page 8 May 24, 2019 36. The SD#6 farthest north appears to be two feet deep as currently called out. Is this correct? Response: The rim is incorrect, the elevation has been revised. 37. SD#29 is currently called out as a Type 2-48", but there are only four, six-inch diameter pipes currently shown into this structure. Additionally, this structure is called out as five feet deep. Is this correct? Response: SD #29 has been revised to a Type 1 structure. 38. On Detention #2 both inlet manholes do not have any call outs (rim elevation, invert, pipe sizes, etc.). Response: Invert elevation and sizing information for the Storrntech Chambers have been added in the Stormtech Chamber details, sheet C-209. Sheet C-204 39. SD#15 is currently called out as one -foot deep with a 12 inch diameter pipe. Revise plan. Response: SD #15 has been revised. Sheet C-205 40. No comments. 41. Detail 6 Type 2 Flow Control Structure does not provide any of the necessary information for orifice size, orifice elevations necessary. Response: A flow control structure detail for Detention #1 and Detention #2 has been added to Detail 6 Sheet C206. Sheet C-207 42. Clarify where Detail 1 is used on the plan set. Response: It is referenced on Sanitary Sewer plan sheet C-353. Detail VC-207 will be moved to Sanitary Sewer detail sheets, 21C-356. 43. Clarify where Detail 8 is used on the plan set. Response: Detail 8 has been removed. Sheet C-300 through C-306 44. Remove City of Federal Way approval block. Response: City of Federal Way approval block removed from Water and Sanitary Sewer Sheets (C-300's). Sheet C-305 45. Remove Detail 6 Catch Basin from the Water and Sewer design section. i me g, us aaeifiTfcruea Ms. Becky Chapin Page 9 May 24, 2019 Response: Detail Removed. Sheet C-400 through C 406 46. No comments. Sheet C-500 47. No comments. Sheet C-501 48. Catch basins installed in the flowline of the curb with solid lids do not meet the requirements, Development Standards Section 4.3.3.B. Response: Storm drainage system revised, and offsite stormwater bypasses site in new storm drainage line located between back of sidewalk and property line, refer C-501thur C- 504 49. It is unclear why the current design is not using an in -line Filterra unit for water quality treatment along 6th Avenue South. Response: In -line filterras are proposed for frontage, and offsite stormwater revised to bypasses site in new storm drainage line located between back of sidewalk and property line, refer C-501 through C-504 Sheet C-502 50. Again, catch basins installed in the flowline of the curb with solid lids do not meet the requirements, Development Standards Section 4.3.3.B. Response: Offsite stormwater revised to bypasses site in new storm drainage line located between back of sidewalk and property line, refer C-501 through C-504 51. Based upon the submitted design, it appears that additional right-of-way dedication will be required at the intersection of 6th Avenue South and South 314th Street. Response: Plans revised to include right-of-way dedication at southeast comer of 6th Avenue South and South 314th Street. Also, see attached memo from Federal Way Public Schools regarding additional Right -of -Way. Sheet C-503 52. Once again, catch basins installed in the Bowline of the curb with solid lids do not meet the requirements, Development Standards Section 4.3.3.B. Response: Storm drainage system revised, and offsite stormwater bypasses site in new storm drainage line located between back of sidewalk and property line, refer C-501 through C-504 53. Please clarify why the proposed Filterra units are not the inline models for city streets along South 316th Street, rather than the parking area model currently proposed. integ, us AxehlrecrURE Ms. Becky Chapin Page 10 May 24, 2019 Response: In -line filterras are proposed for frontage along S 314th Street and 6th Ave S, and offsite stormwater revised to bypasses site in new storm drainage line located between back of sidewalk and property line, refer C-501 through C-504 Sheet C-504 54. It is unclear what the total area is proposed for the compensatory area for water quality treatment and flow detention. The TIR and these plan sheets do not clearly define the area. Response: Figure 513 in the TIR has been updated to clarify the delineation of compensatory area. 55. Add a call out for SD #STMH 1476 to be adjusted to final grade. Response: Call out added to SD #STMH 1476, sheet C-504 Sheet C-505 56. Clarify why the paving along 6th Avenue South from Sta. 23+ 58 to Sta. 25+ 75 has been increased by an additional five feet beyond the centerline. This increased paving appears to end directly beneath the wheel travel path for the opposite lane. If so, this would require a full street overlay between Sta. 23+58 and Sta. 25+75. Response: Per email with Cole Elliott dated 5-14-19, the sawcut line will be located 5' from CL of travelway/ROW, and full street overlay is not required. Sheet C-506 57. Again, based upon the submitted design it appears that additional right-of-way dedication will be required at the intersection of 6th Avenue South and South 314th Street. Response: Plans revised to include right-of-way dedication at southeast comer of 6th Avenue South and South 314th Street. Also, see attached memo from Federal Way Public Schools regarding additional Right -of -Way. 58. ADA truncated domes appear to be missing from the crosswalk at Sta.13+50. Response: ADA truncated domes added to all crosswalks. 59. The proposed HMA patch at Sta.12+95 must be completely perpendicular to the centerline. It should begin about Sta.12+90 and go through Sta.13+05. Response: HMA patch at Sta.12+95 revised to be perpendicular to the centerline. 60. HMA walking path located on north side of South 314th Street at Sta.16+60 must be full walking path width. Response: HMA full walking path (5') provided on north side of South 314th Street at Sta.16+60 Sheet C-507 through C-509 61. No comments. �nteg, us A AiN RF Ms. Becky Chapin Page 11 May 24, 2019 Sheet C-510 62. Correct Detail 6 call out from "cub and gutter" to "curb and gutter". Response: Spelling error corrected. Sheet C-511 63. Since no rockeries are proposed within the right-of-ways of 6th Avenue South or South 314th Street, Detail 6, King County Rock Facing Cut Section, should be moved to Sheet C-205. Response: Rockery Detail 6 removed. Sheet C-512 64. No comment. Sarady Long, Public Works —Traffic Division Plan Comments 1. Provide a school bus turning diagram at the driveway and adjacent street intersections to ensure the school bus can enter, maneuver, and leave the site without encroaching onto opposing traffic lanes or mounting a curb. Please note, the turning template for S-BUS-40 does not match the actual school buses that the school district is currently using. The dimensions for the BUS-40 would be comparable to CITY -BUS. Response: School bus turning diagram provided at the bus driveway on S. 314th Street to ensure the school bus can enter, maneuver, and leave the site without encroaching onto opposing traffic lanes or mounting a curb, refer to 4/C-509 for COFW Std Driveway Detail. Turning bus diagram uses BUS-40 as requested. Also, Federal Way Public Schools has provided an attached memo clarifying the size and type of bus used by the school district. 2. The on -site parent drop-off and pick up storage must be designed to accommodate the 95th percentile queues length of 720 feet, as identified in the TIA. Response: Refer to updated TIA dated 05/24/2019 3. Staff understands that the required non -motorized path along the south side of the property was modified by management to meet the block perimeter standard as required under FWRC 18.55. Please show the modified non -motorized path on 6th Avenue South from the sidewalk to the proposed gate. The non -motorized pedestrian path must meet ADA. Response: ADA path on 6th Avenue South from the sidewalk to the proposed gate was redesigned to meet ADA. 4. Show the 20 mph school zone flasher and associated signs on 6ti 1 Avenue South on the plan set. Ms. Becky Chapin Page 12 May 24, 2019 Response: 20 mph school zone flasher added on 6th, refer to C-505 STA 20+40 RT and 500' north of S 3140, St TIA Review Comments 1. The TIA did not address school zone flashing on 61h Avenue South as requested. The TIA identified installing a 20 mph school zone flasher on 8th Avenue South. However, there is an existing school zone flasher on 8th Avenue South. Please revise the project mitigation on page 18 to include installing a 20 mph school zone flasher on 6th Avenue South. Response: Refer to updated TIA dated 05/24/2019 2. The previous TIA proposed revisions to the existing School Safe Walk route and recommended consolidating crossings on 8th Avenue South to the south leg of South 314th Street and 8th Avenue South intersection. However, the latest TIA recommended keeping the existing crossings without any revisions. Please identify the propose use of the driveway on South 315th Street. Will there be any students using the existing the shoulder on South 315th Street for school access? Response: The purposed use of the driveway on South 315m Street will be for maintenance I service access and emergency access to Mirror Lake Elementary School. There will be no scholars using the existing shoulder on South 3150, Street for access to Mirror Lake Elementary School. Waste Management Comment Per email from City of Federal Way dated May 2, 2019, Waste Management requested a minimum 14' clearance under the roof of the trash enclosure. Response: Refer to sheet A0O4 for updated trash enclosure clearance height. Please feel free to contact me if you have any questions or further clarifications. Sincerely, r 11 e Sam Schafer, AIA Project Manager INTEGRUS ARCHITECTURE, P.S. Documents: Resubmltial Drawings Revised Technlcal Information Report dated 05124/2019 Revised Traffic Impact Analysis dated 05/24/2019 FWPS Memos - ROW dedication, Bus Size School Bus Turning Exhlb@ PC: Becky Chapin, City of Federal Way, Senior Planner Ray Vefik, Federal Way Public Schools FEDERAL WAY PUBLIC SCHOOLS Each Scholar: A voice. A dream. A BRIGHT future. April 26, 2019 Mayor Jim Ferrell City of Federal Way 33325 8th Ave S Federal Way, WA 98003 RE: Mirror Lake Elementary Site Development Permit Dear Mayor Ferrell, Office of the SUPERINTENDENT As a follow up to the meeting between the Federal Way School District and The City of Federal Way on Thursday April 18, 2019, please accept this letter as documentation and confirmation of the School District's position. Our Civil Engineer, LPD, provided a design that the City reviewed. One of the comments from the City was related to existing site condition ground covers that would necessitate the enlargement of the Flow Control Facility. Based on the attached letter, which is also within the Technical Information Report from our Engineer, the District believes that the system is correctly and appropriately sized and designed. The District understands that if Ecology or any other regulatory authority with jurisdiction, outside of the City of Federal Way, finds the system was not adequately sized by the District's Engineer that the District is solely liable for any penalties, expansion, modification and mitigation of same and further agrees to fully indemnify the City. The District also understands that entering into a storm water covenant with the City is a requirement of this project. If you have any questions, please do not hesitate to contact my office. ETammy 1 � r mpbell r Superintendent, Federal Way Public Scha Is Attachment Cc: Cole Elliot, P.E., Development Services Manager, City of Federal Way RESUBMITTED EJ Walsh, P.E., Public Works Director, City of Federal Way MAY z 8 2919 Casey Moore, Director of Capital Projects, FWPS Mike Benzien, Executive Director of Maintenance and Operations, FWPS CITY OF FEI?ER4L WAY COMMUNi Y DEy-ELpFNENT Federal Way Public Schools Each Scholar: A voice. A dream. A BRIGHT future. 33330 8th Avenue South, Federal Way, WA 98003 1 p.253.945.2000 I f.253.945.2011 i www.fwps.org 1932 First Avenue, Suite 201 Seattle, Washington 98101 P. 206.725.1211 F. 206.973.5344 Ipdengineering.com April 29, 2019 Federal Way Public Schools R E S U B M f 7 E D Dr. Tammy Campbell MAY 2 $ 2019 Superintendent, Federal Way Public Schools 1211 South 332nd Street CITY OF FEDERAL WAY Federal Way, WA 98003 COMMUNITY pEVELOPMEN . Re: Stormwater Target Surfaces Federal Way Public Schools Elementary School Replacements: Lake Grove, Mirror Lake, and Wildwood Dear Dr. Campbell: LPD has reviewed the City of Federal Way's concerns with the mitigated "Target Surfaces" and are confident, based upon our professional judgement, that the surfaces mitigated in the design provided to the City are in accordance with the intent of the Department of Ecology stormwater requirements as adopted and incorporated into the 2016 King County Surface Water Design Manual (KCSWDM) as adopted by the City of Federal Way. The specific area of concern to the City of Federal Way was the post developed landscaped areas that are currently either impervious or grass/landscape areas in the existing conditions. Based upon our review of the adopted codes associated with the required mitigated Target Surfaces, these post developed landscaped areas are not considered target surfaces for Core Requirement #3, Flow Control, and are not required to be mitigated to a forested condition. LPD determined the "Target Surfaces" based upon the King County Manual and the City of Federal Way's adoption of that manual. Below is a summary of the code requirements and definitions: Summary of Code Re uirements and Definitions Per the City of Federal Way Code 13.25.010 Core Requirement #3: (c) Core Requnement a3— Flow Contfol- All proposed protects- mdWing redevelopment protects. muse provide on -site Ila& control facdrtres to mitigate the Impacts of Increased storm and surface waler runoff generated by the add ilbn of new Impervwus surface. new pervious surface and feplacemenI impervious surfaces. These facridies shall. at a minimum. meet the performance criteria for one of the area -specific ffaw control standarrTs and be Implemented according to the applicable flow control implementation requirements described in the KCSWDM. Flow control BMPs must be provided as directed in the KCSWDM. When defining the Target surfaces the following surfaces have to be considered based upon the Manual. 1. New impervious surface that is not fully dispersed 2. New pervious surface that is not fully dispersed 3. Existing impervious surface added since January 8, 2001 that is not fully dispersed 4. Replaced impervious surface that is not fully dispersed (non -redevelopment project) 5. Replaced impervious surface that is not fully dispersed on a transportation redevelopment project 6. Replaced impervious surface that is notfully dispersed (redevelopmentproject) Please note that each of the Elementary School projects are considered "Redevelopment" projects. April 29, 2019 Stormwater Target SurFaces Federal Way School District Elementary School Replacement Page 2 The landscaped surfaces are not "New Pervious Surface" based upon the following King County and adopted City of Federal Way definition provided below. Nor will the change in surface increase stormwater runoff. New pervious surface means the conversion of a uatire regerared surface or other native sin -face to a non-native pervious suface (e.g.. conversion of forest or meadow to pasture land_ grass land cultivated land lawn, landscaping_ bare soil_ etc.)_ or any alteration of existing non-native pervious surface that significantly increases storunvater runoff (e.g.. conversion of pasture land. grass land, or cultivated land to lawn, landscaping. or bare soil, or alteration of soil characteristics). The landscaped surfaces are not "replaced impervious surface" based upon the following King County and adopted City of Federal Way Definition. Replaced impervious surface means any existing impervious surface on the pivject site that is proposed to be removed and re-established as impervious surface. excluding impervious surface removed for the sole purpose of installing utilities or performing maintenance on underground infrastructure. For structures. r e►rro►ed means the removal of buildings down to the foundation. For other impervious surfaces, removed means the removal down to base course or bare soil. It does not include the removal of pavement material through grinding or other surface modification unless the entire layer of PCC or AC is removed. Replaced impervious surface also includes impervious surface that is moved from one location to another on the project site where the following two conditions are met. (A) the area from wfiich the imperious surface is moved from will be restored to the same or better runoff discharge characteristics as the area being covered by the moved imperious surface. and (B) impenYous surface at the new location is either designated as non- pollution generating or the pollution generating characteristics remain unchanged compared to that of the original location_ The landscaped surfaces are not "new impervious surface" based upon the following King County and adopted City of Federal Way Definition. New impervious surface means the addition of a hard or compacted surface like roofs, pavement, gravel_ or dirt= or the addition of a more compacted surface. like paving over pre-existing dirt or gravel_ Permeable pa,, ement and vegetated roofs are considered new impervious surface for purposes of determining whether the thresholds for application of sninirruim requirements are exceeded, as are lawns. landscaping, sports fields. golf courses_ and other areas that have modified runoff characteristics resulting from the addition of underdrains designed to collect stormwater runoff Open., uncovered retention/detention facilities shall not be considered impervious surfaces for purposes of determining whether the thresholds for application of minimum requirements are Since these surfaces do not meet any of the definitions above, they are not considered target surfaces. Please do not hesitate to contact me if you have any questions or need additional information. Sincerely, I i Laurie J Pfarr, P.E. Principal 10wner CC. Rebecca Baibak, Integrus Sam Schafer, Integrus FEDERAL WAY Department of PUBLIC SCHOOLS Maintenance & Operations TO: City of Federal Way Public Works - Development Services FROM: Mike Benzien, Executive Director of Maintenance and Operations PROJECT: Mirror Lake Elementary School SUBJECT: FWPS Additional Right -of -Way (ROW) DATE: May 24, 2019 This memorandum is regarding the Federal Way Public Schools capital bond projects Federal Way Revised Code (FWRC) 19.145.490 (FWRC 19.185.070). Specifically, for Mirror Lake Elementary School, Additional Right -of -Way (ROW) at the intersection of 6th Avenue South and South 314th Street. Federal Way Public Schools (FWPS) will prepare an exhibit and legal description for the City of Federal Way (COFW) can formulate statutory warranty deed for Mirror Lake Elementary School at SE corner of South 314th Street and 6th iAvlene South, see sketch below. T Mike Benzien 3' minimum off back of proposed walk, 27' radius A �- RESUBMITTED MAY 2 g 2019 CrrY OF FEDERAL WAY COMMUNrrY DEVELOPMENT Federal Way Public Schools Each Scholar: A voice. A dream. A BRIGHT future, 1211 S. 332"d St, Federal Way, WA 98003 1 p.253.945.5930 I f.253.945.59591 www.fwps.org FEDERAL WAY Department of PUBLIC SCHOOLS Maintenance & Operations TO: City of Federal Way Public Works - Development Services FROM: Mike Benzien, Executive Director of Maintenance and Operations PROJECT: Mirror Lake Elementary School SUBJECT: FWPS School Bus S-BUS-40 DATE: May 24, 2019 This memorandum is regarding the Federal Way Public Schools capital bond projects Federal Way Revised Code (FWRC) 19.145.490 (FWRC 19.185.070). Specifically for Mirror Lake Elementary School, Federal Way Public Schools (FWPS) is planning on using School Bus S-BUS-40 which is 40 feet in length. FWPS used the Table 2. Design vehicle dimension, adapted from the 2001 Greer, Book (1) and NCHRP Report 505 (2), see table below, that presents this infor ation. Mike Benzien TaTtTr 2. Ov%igi veiticlr dimrit%li pin. adalurd from I lie 211111 Grerrr Nar7k 1 !! and XCHRP Rrpor1505 (21 Dlmenuon. Inl Overall Oeeibkrl0 _ Typrc41 kmypvr to center al near Deign vehicle typo Symbol Height WWIh Lmolh_ Front Rear we, war S T Wei landem War a.W Pasrorrrlr Car p 42S 7 19 3 5 S�40VnlT""(< +del Su 11.135 a0 30 4 6 20 - - - - - - Snya Un4 TrrKF.lMlraad4i SU•25 t 1-13 6 s 0 395 4 10- Buries trlerciHBus(MplorCoech) BUS-40 12.0 8.6 40 a 6.3s 24 3.7 - - - - - BUS-45 120 es 45 6 05' 265 d0 - - - Chy Transil Bus CRY BUS 10 5 8.5 40 7 8 25 - - - - Convenlional School Bus (65 pass) S-GUS 36 10 5 s0 3S 8 25 12 213 - - - Large School Bus (84 pass.) SSUS do 10.5 6.0 40 7 13 20 - - - - ArticulatedBus A -BUS 110 as 60 86 10 22D 194 62' 132' - Combinallon Trucks Inlermedrale Semitrailer WB-40 135 6.0 d55 3 25' 125 275 - - - 255 Intermediate Semitrailer WB-60 135 85 55 3 2' 146 354 - - - - 355 vllerslale Semilredef' W&62' 135 a5 685 4 2S' 216 410 - - - 410 Interstate Semitrailer WB-67 135 e.5 73S 4 25' 216 455 - 455 'Doubla.6ollom.Semltralter?radar WB-67D 135 a5 733 233 3 IIto 230 301 70' 230 - 210 Rocky Mourdam Doubla-SemitrallerRrallei' WB-02D 135 85 983 233 3 175 405 3or 701 230 425 7 nplo•SematadW Trailers WB-100T 135 85 1048 233 3 110 225 up To' 23.0 230 210 wary.. w on as vuapnn vvc Donato r rmsl De4pn vehlale with $3 a trailer ad graf dl4mered in wtlrl 1982 Sod CombinW dimension is l94 h and dn.c„ mling section is 4 h vnde Assislance Act (STAA) RESUBMITTED MAY 2 g 2019 CITY OF FEDERAL WAY COMMUNITY DEVELOPMENT Federal Way Public Schools Each Scholar: A voice. A dream. A BRIGHT future. 1211 S. 332"d St, Federal Way, WA 98003 1 p.253.945.5930 I f.253.945.59591 www.fwps.org CITY OF FEDERAL WAY COMMUNITY DEVELOPMENT DEPARTMENT RESUBMITTAL #1 DEVELOPMENT REVIEW COMMITTEE TRANSMITTAL DATE: April 8, 2019 TO: Cole Elliott, Development Services Manager Greg Kirk, Plans Examiner Rick Perez, City Traffic Engineer 5q, Brian Asbury, Lakehaven Water Sewer District Chris Cahan, South King Fire & Rescue FROM: Becky Chapin, Senior Planner COMMENT. Email any additional technical comments or let me know if ready to approve. FILE NUMBER(s): 19-100188-00-UP RELATED FILE NOS.: 19-100960-00-CO PROJECT NAME: Mirror Lake Elementary School PROJECT ADDRESS: 625 South 314th Street ZONING DISTRICT: RS 7.2 PROJECT DESCRIPTION: RESUBMITTAL #1 of document responding to a technical comment letter dated March 5, 2019. LAND USE PERMITS: Use Process III (School District Lead Agency on SEPA) PROJECT CONTACT. Ray Vefik CBRE 1420 Fifth Avenue, Suite 1700 Seattle, WA 98101 rvefik@fwps.org MATERIALS SUBMITTED: Resubmittal Form Response Letter Request to deviate from Required Storm Water Control and Treatment Memo's regarding changes to SEPA Pest and Pesticide Management Plan Lakehaven Water & Sewer Certificates of Availability & DE Agreement Subsurface Soils UST Investigation Arsenic and Lead Soil Sampling Traffic Impact Analysis TIR Revised Plans inteC us a car:,=crnr;r April 1, 2019 Becky Chapin City of Federal Way 33325 8th Avenue South Federal Way, WA 98003 RE. File #19-100188-00-UP; TECHNICAL REVIEW LETTER Mirror Lake Elementary School, 625 South 314'* Street, Federal Way Integrus Project No. 21737.00 117 S. Main St., Suite 100 Seattle, WA 98104 Dear Ms. Chapin: 206.628.3137 1 office 206.628.3138 1 fax Below are written responses to your technical review letter dated March 5, 2019. A complete plan set with clouds identifying all revisions has been submitted with the written responses. Becky Chapin - Planning Division 1. Not all reports or documents reference in the SEPA checklist were provided to the city. Please provide the following reports for the city's files: Subsurface Investigation Report, PBS Engineering and Environmental, Inc. (9/24), and Soils Analysis to detect the presence of historic arsenic and/or lead contamination. Response: The following documents from PBS Engineering and Environmental, Inc. are included in the resubmittal: 09/24/2018 — Subsurface Investigation Report 10/17/2018 — Arsenic and I or Lead Contamination Report 2. The subject property is within the five-year wellhead capture zone, which is designated as a critical aquifer recharge area. Per Federal Way Revised Code (FWRC)19.145.490, any proposed development located in critical aquifer recharge areas must submit a hazardous materials inventory statement. As the total landscaped and lawn area exceeds 10,000 square feet, FWRC 19.185.070 requires a management plan for any pesticide and/or herbicides that will potentially be used for the long-term care of the development's landscaping. Please provide a hazardous materials inventory statement, an operations and management manual using best management practices (BMPs), and integrated pest management (IPM) for fertilizer and pesticide/herbicide applications. The BMPs shall include recommendations on the quantity, timing, and type of fertilizers applied to lawns and gardens to protect groundwater quality. Response: The following documents are included in the resubmittal: Hazardous materials inventory Statement Operations and management manual (BMPs) Integrated Pest Management (IPM) RESUBMITTED APR 0 4 2019 CITY OF FEDERAL WAY COMtiMUN[TY DEVELOPMENT � me . us ARItd RE Ms. Becky Chapin Page 2 April 1, 2019 3. Pursuant to FWRC 19.125.160, no improvement or structure maybe in a required yard except as follows: (5) Fences and railings not over six feet in height may be located in required yards. The proposed fence around the perimeter of the school is 10 feet in height. The fence height must be reduced to six feet in height or relocated outside the required yard setbacks. In addition, FWRC 19.115.090(1)(f) requires such fencing to contain vinyl —coated mesh, powder -coated poles, dark color(s), and architectural element(s), such as pole caps and/or a decorative grid pattern. Provide fence details of how this requirement is met. Response: As part of the Federal Way Public Schools Educational Specifications and safe school plan, a 10' high fence is proposed around the perimeter of the outdoor play area to accommodate the unique safety challenges around schools and create a safe and supervisable site for scholars. The height of the fence complies with requirements of the Office of Superintendent of Public Instruction (OSPI) per FWRC 19.200.090 and the requirements of RCW 28A.320.125 — Safe School Plans. The fence is located behind the type III perimeter landscaping buffer in the 50' setback to maximize open space and activity opportunities for scholars and community members using the site after school hours while maintaining a safe and secure facility. All proposed chain link fencing and material meets the conditions as required by FWRC 19.115.090(1)(f). Fence and gate details are shown on sheet L403. 4. Type III perimeter landscaping is meant to provide a visual separation of uses from streets and between compatible uses as to soften the appearance of parking areas and buildings elevations. To meet this intent, the perimeter fencing should be located on the interior side of the perimeter landscaping along the right-of-ways. Response: Perimeter fencing adjacent to Type III perimeter landscaping has been relocated to the interior side of the perimeter landscaping as shown on sheets L100 and L200 5. Sheet L200 lists incorrect parking lot landscape calculations. Per FWRC 19.125.070(2), Type IV landscaping is required in the amount of 22 square feet per parking stall when 50 or more parking stalls are provided. A total of 76 parking stalls are provided. Please revise the calculations for required parking lot landscaping. Response: Parking lot calculations have been updated to reflect the required 22 SF per parking stall as shown on L100 and L200. 6. Pedestrian connections from the northeast and southeast parking lots to the school building are needed. Per FWRC 19.115.050(4), all pedestrian pathways through the asphalt parking areas require a variation in paved texture and color. Approved methods of delineation include stone, brick, or granite pavers, exposed aggregate, or stamped and colored concrete. Please provide material choice on resubmitted sheets. Response: Pedestrian connections from the parking lots will be concrete pavement with an exposed aggregate finish as shown on L100 and L200. i ntec ARusT0RE Ms. Becky Chapin Page 3 April 1, 2019 7. Please provide either a color rendition of the elevation drawings with a material list, or a color and materials board, with the resubmittal. Response: Refer to sheet G-006 for updated color and materials board and updated sheet A-201 for colored elevations. 8. The building design provides alternative methods to organize and shape the structural elements, instead of providing the significant structural modulation stated in FWRC 19.115.100(3). Staff will consider the alternative method to satisfy community design guidelines if all of the following architectural and accessory design elements listed in FWRC 19.115.060(3)(b) are provided along the west elevation: • Window openings with visible trim material, or painted detailing that resembles trim; • Artwork, such as mosaics, murals, decorative masonry, or metal patterns or grillwork, sculptures, relief, etc., over a substantial portion of the blank wall surface. (The Federal Way Arts Commission may be used as an advisory body at the discretion of the planning staff.); • Architectural features, such as setbacks, indentations, overhangs, projections, articulated cornices, bays, reveals, canopies, and awnings; and ■ Material variations, such as colors, brick or metal banding, or textural changes. Response: The west facade incorporates window openings that are articulated by sheet metal flashing trim material creating a shadow box that organizes groupings of windows along the facade, refer to sheet G-006 and A-201 for character and locations. Refer to sheet G-006 and A-201 for updated elevations identifying location for student provided artwork as a decorative glazed tile accent band and a custom perforated metal vertical trellis at the vertical siding area at the downspouts that is incorporated into the design of the exterior facades. Architectural features at the parapet incorporates height variation and emphasizes the material modulation of the facades. All facades incorporate material, color, and textural variations, refer to sheet G-006 for material and color descriptions. The building design is comprised principally of concrete masonry veneer base, cement board panel and plank siding, and window assemblies with an articulated parapet roof design. Per FWRC 19.275.080, temporary trailers, buildings, or other structures used for construction offices, or outdoor storage containers used temporarily to store construction materials, and normally associated with construction of a building or development, are permitted on the subject property during building or development subject to Process I approval, or integration into the land use process applicable to the underlying project. To avoid requiring a separate Process I application, staff recommends you include a plan that depicts the location of temporary trailers and/or construction materials with the Process III resubmittal Response: Refer to submitted logistics and phasing plans from the contractor for location of construction trailers, fences, and containers. i nteg o YEc s roar Ms. Becky Chapin Page 4 April 1, 2019 Cole Elliott, Public Works - Dev. Services General 1. The plan set and SEPA document fail to address how student and constriction activities will coexist on this site through the remodel. The city would like to avoid a repeat of the incident where a picture was taken of a student touching the wheel of a moving backhoe. Response: Refer to submitted logistics plans and sheets G-008, G-009, and G-010 for additional phasing information showing clear delineation of construction zones and school activities. SEPA 2. Page 10 of 31 does not address an interim period where the existing building and the proposed building are contributing impervious area to the storm system. In order to avoid a repeat of the Federal Way High School remodel and the fines associated with discharges in excess of the NPDES Constriction Stormwater limits. Design an appropriate interim stormwater treatment system to address this issue. Response: A sediment pond (storm system for interim conditions) has been sized and shown on TESC plans. Sizing calculations are included in appendix B and a SWPPP has been included in Appendix C of TIR Report. Refer to attached Memo that addresses "where the existing building and the proposed building are contributing impervious area to the storm system". 3. Page 13 of 31 identifies the water quality treatment as a sand filter and water detention facility. Unless the SEPA is amended, both the plan and the Technical Information Report (TIR) must be amended to this treatment system. Response: SEPA is amended. See attached Memo that reports the water quality treatment. Technical Information Report (TIR) 4. Use of underground detention facility outside of the City Center requires approval from the Public Works Department. Response: Refer to attached underground detention system deviation request letter for approval. 5. Provide support documentation which demonstrates that the biofiltration swale and proposed media filter drains meet or exceed the enhanced basic water quality treatment. Response: Support documentation has been provided in Appendix B demonstrating that proposed media filter drains have DOE General Use Level Designation (GULD) for enhanced treatment. Additionally, sizing calculations for the media filter drains have been included in Appendix B. There are no proposed biofiltration swales. I nteg, cr s ruse Ms. Becky Chapin Page 5 April 1, 2019 6. Define the difference between a "biofiltration swale" and a "media filter drain." Response: According to WSDOT Highway Runoff Manual, "a biofiltration swale is defined as a vegetation -lined channel designed to remove suspended solids from stormwater" and a media filter drain is defined as "a linear flow -through stormwater runoff treatment device that can be sited along highway side slopes and medians, borrow ditches, or other linear depressions". 7. Page 7, Section 3, Task 2, Sensitive Areas — The design engineer should check with the City of Federal Way Planning Division for any sensitive areas identified within the city. Response: The City of Federal Way's Critical Areas Map has been used for reference. 8. Page 8, Section 3, Task 2, Critical Areas — Again, check with Planning Division for critical areas maps. Response: The City of Federal Way's Critical Areas Map has been used for reference. 9. Page 8, Section 3, Task 2, Water Quality Issues — Typically, this refers to surface water quality issues, not water distribution issues (Lakehaven). Response: The section has been updated per latest City of Federal Way's Water Quality Study. 10. Page 10 Table 1, Site Area Summary - The table should show the pre -development, interim condition, and post development. Response: Table 1 has been updated to show existing and proposed conditions. For sediment pond sizing (interim conditions), post -developed areas were used as a conservative measure. 11. Provide a figure to help understand sub -basin areas. Response: Figure 5B showing sub -basin areas has been added. 12. Provide a full evaluation of all Low Impact Development BMP's, and the rational for the selection of those provided on site. Response: A full evaluation of all LID BMPs and rationale for the selection of those provided on site have been included in the TIR. 13. Provide preliminary sizing calculations for the bioswale, the media filter drain, Baker Task, and the Stormtech Chambers. Response: Sizing calculations for the media filter drain, baker tank and Stormtech Chambers has been provided in Appendix B. There are no biofiltration swales. ntec ax r ruo[ Ms. Becky Chapin Page 6 April 1, 2019 14. On Figure 5, any asphalt area which allows vehicle access cannot be considered NPGIS. Response: The asphalt areas providing vehicle access have been updated and now considered PGIS. 15. The information promised in Appendixes A and B must be submitted at this time. Response: Design drawings in Appendix A and design calculations in Appendix B have been provided. Plans 16. Explain the proposed solid waste and identify the location on the site plan. Response: Solid waste dumpsters are located within the service yard and will convey any liquid within this area to the sanitary sewer. See Sheets C-301 to C-304 and A-003 and A- 004. 17. No information has been provided which details how elementary students and construction activities will coexist on this site. Response: Refer to submitted logistics plans and sheets G-008, G-009, and G-010 for additional phasing information showing clear delineation of construction zones and school activities. 18. Each civil sheet shall have the following note in bold: NO TEMPORARY CERTIFICATE OF OCCUPANCY (TCO) OR CERTIFICATE OF OCCUPANCY (CO) SHALL BE ISSUED UNTIL ALL STORMWATER AND FRONTAGE IMPROVEMENTS ARE INSTALLED, INSPECTED AND APPROVED BY THE CITY OF FEDERAL WAY. Response: Note has been added to all sheets. Section 200 19. Provide catch basin numbers, flow direction, rim, and invert elevations. Response: Catch basin numbers, flow direction, RIM and IEs have been provided. 20. Proposed retention/detention gallery appears to have at least three separate inlets. The design must maximize the distance between inlets and outlets to provide flow through design. Response: The detention systems have been revised. 21. The proposed Compost Amended Bioswale appears to show two inlets without an outlet. Response: There is no proposed compost amended bioswale. I nteg,,qur¢cruxt Ms. Becky Chapin Page 7 April 1, 2019 Section 400 22. The current design does not provide any justification for a curb return entrance for the buses. Either apply for an additional modification or revise to a standard commercial driveway approach. Response: Entrance for bus is revised to driveway approach per the standard commercial driveway detail. Section 500 23. No water quality treatment is currently being proposed along 6th Avenue South. Response: A Filterra system has been added to provide water quality treatment along 6th Avenue South. 24. The proposed street sections along 6th Avenue South and South 314th Street do not meet Standard Street Section "S." The street modification has not been reviewed and was not received until after the use process packet. The street improvement section must correspond to approved right-of-way modification. Response: Frontage improvements for S 314th Street and 6th Ave S are standard street section S. 25. Street lights and street trees must be shown conceptually on the use process plans. Response: Street Lights are conceptually shown and coordinated with tree locations as shown on E101 and L200 26. Provide a bus turn modeling for any proposed bus entrance. Response: A bus turning modeling for the proposed bus entrance has been provided. 27. Street overlay requirements will trigger ADA improvements. ADA upgrade to ramps on each leg of an intersection will be required. Crosswalks must be provided on both sides of the intersections. Response: Half Street improvements have been provided to the centerline and ADA improvements triggered by these improvements have been included on both sides of the intersections. Refer to resubmitted plan sheets. SaradyLong. Public Works - TrafficPublic Works - Traffic General 1. The information in the SEPA document, traffic report, and plan set should be consistent. For example, the SEPA document and the TIA stated different square footages of the proposed school (60,322 square feet vs. 63,590 square feet). Response: See attached Memo that states the corrected square footage. intec..'us JAHCHITECTUAE Ms. Becky Chapin Page 8 April 1, 2019 2. The plan set should depict improvement specified/identified in the SEPA document and traffic report. Response: The plan set indicates the improvements specified / identified in the updated SEPA document and traffic report as part of the resubmittal Plans 1. The civil plans must depict the correct frontage improvement or South 314th Street, 611 Avenue South, and South 315th Street, including the appropriate right-of-way dedication. All improvements shall be within the specified right-of-way. Please note, the submitted right-of- way Street Improvement Modification/Waiver has not been issue by the Public Works Director. Response: Frontage improvements have been provided on S 314"h Street and 61h Ave South and are shown on sheets C-500 to C-511. 2. Per the TIA, off -site improvements on the south side of South 314th Street, from the property site east to 8th Avenue South, is needed with the revised safe school walking route. The civil plan must depict this off -site improvement. Response: Please refer to updated Traffic report that concurs with the civil plan off -site improvements. TIA has been updated to represent the north walking route per civil plans which also aligns with existing raised crosswalk on north side of 8th and S. 314th. 3. Provide a school bus turning diagram at the driveway and adjacent street intersections to ensure the school bus can enter, maneuver, and leave the site without encroaching onto opposing traffic lanes or mounting a curb. Response: Please refer to updated Traffic report. The school bus turning diagram has been provided. 4. Per the TIA, the crosswalk on 8th Avenue at the South 314th Street intersection will be relocated to the south leg of the intersection. As such, the plan set must show removal of the existing raised crosswalk and associated sign on the north leg, and a new raised crosswalk on the south leg with associated signage. Response: Please refer to updated Traffic report. TIA has been updated to represent the north walking route per civil plans which also aligns with existing raised crosswalk on north side of 8th and S. 314th. 5. Show removal of the existing crosswalk and associated signs on South 314th Street. The curb ramp at the northeast comer of the intersection will need to be upgrade to meet the ADA. Response: Removal of existing crosswalk and associated signs has been shown on TESC & Demolition Plans. Curb Ramp at the northeast comer of the intersection has been designed to meet ADA requirements (Sheet C-503). me C - us Afi ITf7BF Ms. Becky Chapin Page 9 April 1, 2019 6. The on -site parent drop-off and pick up storage area must be designed to accommodate the 95'* percentile queues length. Verify that queues will not back up onto South 314th Street. Response: On -site parent drop-off and pick up accommodates queuing lengths. Refer to updated Traffic report. The on -site parent drop-off and pick up storage area is designed to accommodate the 95th percentile queues length. Queues will not back up onto South 314th Street. 7. The Public Works Traffic Division cannot support the proposed parking restriction on South 314th Street and 6th Avenue South. The school is located in a high -density residential neighborhood with a planned road incorporating off-street parking. The city will consider parking restrictions due to safety issues, such as sight distance. Response: Frontage improvements on S 314th Street and 6th Ave S have been designed per S Section standard. No parking restrictions apply. 8. Show the non -motorized path along the south side of the property to meet the block perimeter standard as required under FWRC 18.55. Response: Access to the site from surrounding neighborhoods is provided by pedestrian gates located at the southwest comer of the site from 6th avenue. Pedestrian gate located at the south east of the site connecting to 7th PI S. Pedestrian gate located to the east of the site connecting to S. 315th St. Refer to sheets L100, L200 and G005 for specific locations. 9. The proposed crosswalk located on the east leg of the South 314th Street and 7th Avenue South intersect should be converted to a raised crosswalk with appropriate signage. Response: The proposed crosswalk at the intersection of S 314th Street and 7th Ave S has been converted to a raised crosswalks and appropriate signage has been added. 10. Show the conceptual streetlight on South 314'* Street and 6'* Avenue South. Response: Street lighting on South 314th and 6th Avenue South are shown on E101 and L200 11. Show the 20 mph school zone flasher on South 314th Street and 6th Avenue South on the plan set. Response: The 20-mph school zone flasher on South 314th Street and 6th Avenue South has been included on the plan set. TIA Review 1. The TIA does not address the school flashing on 6th Avenue South. The TIA identified installing a 20 mph school zone flasher on 8th Avenue South and South 314th Street. However, there is an existing school zone flasher on 8th Avenue South installed by the city. Response: Please refer to updated Traffic report. � ntec ARuFs t!!AF Ms. Becky Chapin Page 10 April 1, 2019 2. Provide a queuing analysis at the parent drop offlpick up area to ensure the on -site storage will be adequate to accommodate die 95t' percentile queues length to ensure traffic will not back up onto South 314th Street. Response: Please refer to updated Traffic report. 3. Revise Page 3 of the TIA to include roadway frontage improvements along 6th Avenue South and South 315th Street consistent with page 21 of SEPA document. Response: Please refer to updated Traffic report. SEPA CHECKLIST— TRANSPORTATION 1. The TIA identified mitigate measures to reduce the project impacts. These mitigation measures should be included in SEPA document as proposed measures to reduce or control transportation impacts. Response: See attached Memo that identifies mitigate measures to reduce project impacts. 2. Verify the specified parking in section 14(d) is consistent with the total provided on the plan set. Response: See attached memo that states updated parking count. Brian Asbu��Lakeh_ ayen�Water & Sewer District Water ■ Lakehaven issued a Water Certificate of Availability for the proposed project/property on February 5, 2019; the certificate is valid for one-year from the date of issuance. ■ Hydraulic model results (FF #343a) for the proposed onsite water distribution system indicate that Lakehaven's standard maximum allowable system liquid velocity of 10 ft/s, at no less than 20 psi, will be exceeded at a fire flow rate above 1,800 GPM. This flow figure depicts the calculated performance of the existing water distribution system under high demand conditions. ■ A Developer Extension (DE) Agreement was executed between Lakehaven and Federal Way Public Schools on January 9, 2019, to manage construction of the proposed onsite water distribution system. However, no water system plans have yet been submitted to Lakehaven to commence the initial DE plan review processes. New onsite water main would connect to existing water mains in South 314th Street and 6th Avenue South. Response: See attached Developer (DE) Agreement and Certificate of Water Availability for Mirror Lake. Water system design has been submitted to Lakehaven Water and Sewer District and the Design Team is waiting for any comments. Sewer ■ Lakehaven issued a Sewer Certificate of Availability for the proposed project/property on February 5, 2019; the certificate is valid for one-year from the date of issuance. Meg, us =rruaf Ms. Becky Chapin Page 11 April 1,2019 ■ The applicant has proposed a new sewer service connection to the existing sewer main in 6th Avenue South. ■ A separate Lakehaven Sewer Service Connection Permit is required for each new connection to the sanitary sewer system, or any modification (disconnect, etc.) to an existing sewer service connection, in accordance with standards defined in Lakehaven's current °Fees and Charges Resolution." Response: See attached Certificate of Sewer Availability for Mirror Lake. Sewer system design has been submitted to Lakehaven Water and Sewer District and the Design Team is waiting for any comments. Please feel free to contact me if you have any questions or further clarifications. Sincerely, Sam Schafer, AIA Project Manager INTEGRUS ARCHITECTURE, P.S. Documents: Resubmlttal Drawings Revised TIA Revised TIR Subsurface Investigation Report Arsenic and / or Lead Contamination Report Hazardous materials inventory statement, BMPs, and IPM Updated SEPA memos underground detention facility outside approval letter PC: Becky Chapin, City of Federal Way, Senior Planner Ray Vefik, Federal Way Public Schools MIRROR LAKE ELEMENTARY SCHOOL — PO 18802268 Lakehaven Project No. 6318021 AGREEMENT THIS AGREEMENT, entered into in duplicate between the LAKEHAVEN WATER AND SEWER DISTRICT, King County, a municipal corporation of the State of Washington, hereinafter referred to as "the District" and FEDERAL WAY PUBLIC SCHOOLS, hereinafter referred to as "the Developer". WITNESSETH: WHEREAS, the District operates and maintains a water distribution system within its boundaries which can serve property of the Developer, and WHEREAS, the Developer desires to construct certain water mains and appurtenances at its own cost to serve the Developer's property, for delivery to and operation by the District, NOW, THEREFORE, IT IS HEREBY AGREED that: 1. The land for which domestic water service is requested and to which this Agreement applies, is realty in King County, Washington, legally described in Exhibit "A" and generally depicted in Exhibit "B", attached hereto and by this reference incorporated herein. By executing this Agreement, the Developer represents and warrants that it is the owner of record of the above -described property. If such representation of ownership is invalid, this Agreement shall be void as to the portion of the property not owned by the Developer. The Developer agrees that the District may require the Developer to furnish a title report for the property at the Developer's expense. 2. All newly created legal descriptions shall be furnished by the Developer and shall be stamped and signed by a professional land surveyor licensed in the State of Washington. Each newly created legal description shall be accompanied by a drawing that graphically depicts the legal description. 3. The Developer has paid the required deposit as set forth in District Resolution No. 2017-1300, or any subsequent amendment thereto. Said deposit shall be applied against actual expenses of the District, including all bacteriological testing and' sampling. The District shall determine, on a regular basis, its actual costs associated with the project, including taxes, and shall submit to the Developer an invoice to repay the District for actual costs in excess of the amount previously collected. Payment shall be due as noted on said invoice. Off -hours labor, including overhead, costs for such inspections will be charged to the project on an DE Agr-6318021.docx (Form Update 12/19/17) Page 1 of 8 RESUBMITTED APR 0 4 2019 CMY OF OMMMUn 6 D°YeiT overtime basis. The Developer agrees that the project account shall remain current for the life of the project and delinquency of any kind shall induce work stop action/orders, suspension/termination of service or any other action necessary to effect collection of monies owed the District. In the event monies are owed the District for work on, or unpaid charges allocated to, the project, as determined by the District, Developer agrees that the District shall be entitled to recover such monies by withholding and making application for payment to itself, any assignment of funds, cash deposits or latecomer reimbursements otherwise owing to the Developer. In the event that the deposit exceeds the District's actual expenses, the District shall issue to the Developer, at project closing, a refund of such unused amounts. 4. Except as noted herein, all work conducted by the District will be performed during normal work hours. The Developer may, at their discretion, submit a written request to the District for District non-exempt staff to expend overtime for tasks and services related to the completion of this Agreement. Said written request(s) shall state the Developer's reasons for the request(s) that would qualify it as an "emergency" (e.g., "excessive" additional expenses for any delays in plan review (actual/estimated figures should be provided), approaching unfavorable weather conditions for construction, permit expirations, etc.). Each written request submitted to the District for this purpose should also specify any component limitations the Developer desires (e.g., request for plan review/approval, request for construction inspections, etc.). 5. In the event work and construction described herein is not completed within five (5) years from the date of application for this Agreement, said application date being OCTOBER 5, 2018, the District can terminate the Agreement without notice, the Agreement shall then be void, and a new Developer Extension Agreement Application, along with applicable fee, will be required to re -commence and subsequently complete said work. 6. It is agreed by the parties that time is of the essence in all matters relating to the performance of this Agreement. 7. The Developer agrees that all requests for modification to District standards, specifications, policies or Resolution shall be submitted in writing to the District. Such requests shall be reviewed and the District will provide a written response to each submitted written request. S. The District shall review final plans and specifications for water distribution system construction to be performed by the Developer under this Agreement. If preliminary plans are not deemed acceptable by the District, the Developer shall be obligated to revise the plans and specifications in accordance with design standards deemed acceptable by the District. In the event that more than three (3) items are found to remain deficient by the District on the third submittal of plans, subsequent review by District staff may be billed at a factor of 1.5 times the standard rate without further notice to the Developer. The Developer shall submit final plans for construction in AutoCAD format (on disk or via email attachment), and on standard print media (24"x36" or 22"x34" size), prior to scheduling the preconstruction meeting. After the Developer has been notified in writing by the District that final plans and specifications have been approved, and all other necessary items have been addressed and resolved, the Developer and the Developer's contractor shall meet with the District's representatives for a preconstruction meeting before construction is commenced. DE Agr-6318021.docx (Form Update 12/19/17) Page 2 of 8 9. The Developer agrees that it shall be responsible for providing to the District accurate and reliable information concerning the actual location of the facilities constructed. In furtherance of this obligation, the Developer shall procure from LPE ENGINEERING PLLC, or other licensed engineer or surveyor that the Developer has indicated will be consulting on the construction phase of the project, a written statement, which shall be submitted to the District prior to scheduling the preconstruction meeting, stating that accurate data will be collected during construction of the facilities to enable the engineer/surveyor to submit actual and reliable "as -built" locations to the District, based upon the information available to the engineer/surveyor during construction and also by field survey of the constructed facilities that are accessible at the ground surface. The Developer shall cause such engineer/surveyor to submit to the District, prior to scheduling the preconstruction meeting, a certificate of insurance for the engineer's/surveyor's Errors and Omissions policy. The Developer shall also cause such engineer/surveyor to submit to the District, prior to scheduling the preconstruction meeting, a certificate of insurance and a copy of an endorsement to the engineer's/surveyor's General Liability policy, naming the District as an additional insured as respects the obligations set forth in this section. The limits for Errors and Omissions and General Liability Insurance shall not be less than $1,000,000.00 for each claim; $1,000,000.00 aggregate. At the conclusion of construction and prior to and as a condition of acceptance, the engineer/surveyor shall deliver to the District its certification that it has made periodic field investigations and measurements during construction and that the "as -built" drawings submitted to the District, which drawings shall be provided in AutoCAD format (on disk or via email attachment) and on original or fixed -line photo mylar, are accurate and reliable. The District shall have the right to approve any change in the consulting engineer or surveyor during the project and the Developer agrees that the District may refuse any change in the consulting engineer or surveyor or may condition the same on resubmittal of the certification of location described above. No approval of any new engineer or surveyor shall be unreasonably withheld by the District. 10. The District will make application for the CITY OF FEDERAL WAY 'Right-of-way Construction Permit(s)'. The Developer acknowledges familiarity with the provisions of such Right-of-way Construction Permit(s) and agrees that it or its contractor's failure to comply with any of the provisions of the permit(s) shall entitle the District, in addition to the right to enforce any other remedy available to the CITY OF FEDERAL WAY as the permitting party, to immediately stop all construction activity on the right-of-way until the violation or violations have been eliminated and corrected to the satisfaction of the District and the District should not be held liable for any damages, either direct or indirect, for the delay and expense of such work stoppage. The Developer shall procure all other state, county and city licenses or permits. 11. The Developer agrees this Agreement shall create twenty -foot (20') wide [pipe(s) offset five -feet (T) from nearest margin] non-exclusive easement areas and right-of- way granted to the District for water distribution facilities and all appurtenances related thereto, as indicated on water facility construction plans approved by the District for the project, respectively, through, over and across the Developer's property. This easement shall be maintained in full force and effect unless superseded and replaced by another easement as determined acceptable by the District. 12. In the event an easement is required over realty other than realty described in Paragraphs No. 1 & No. 11 herein, such easement, in form acceptable to the District, together with title report or other sufficient proof of ownership of such realty, shall be delivered to the DE Agr-6318021.docx (Form Update 12/19/17) Page 3 of 8 District prior to scheduling the preconstruction meeting. The Developer shall be obligated to obtain a written release from any property owner across whose property construction is performed pursuant to the grant of an easement, sufficient to indicate that the site restoration on the easement is satisfactory and complete. 13. Prior to scheduling the preconstruction meeting, the Developer shall deliver to the District a restoration performance bond in a sum to be determined by the District after receipt of any required Right -of -Way Construction Permit(s) and/or after the determination of off -site restoration requirements related to the work described herein, conditioned that the Developer will restore to the satisfaction of the District, and state, county, and city agencies as applicable, all work to be performed hereunder in public rights -of -way and the District's easements. Form and contents of bond shall be determined by the District. This requirement is waived for public authorities; however, Developer shall be held accountable for any such restoration. Should any restoration work be determined necessary, Developer will be notified to complete the restoration work. If such work is not corrected within the specified time, the District will perform the work and issue an invoice to the Developer. Said invoice shall be paid within thirty (30) days of issue date. 14. Construction shall be performed in accordance with the District's approved plans, standards and specifications and only under the supervision of a licensed contractor experienced in the installation of water distribution system facilities and the related work. 15. Two (2) sets of materials submittals shall be submitted to the District as one package, bound and indexed with a table of contents, for all equipment/material to be furnished for this project. Each submitted piece of equipment/material shall be fully defined by catalog number and reference made as to its applicable section of the District's standard specifications. Materials -submittals shall be submitted prior to scheduling the preconstruction meeting. 16. By execution of this Agreement, the District does not guarantee water service will be provided to realty described herein. In the event that any of the District's facilities, such as storage tanks, wells, and water transmission mains become utilized beyond their design or approved capacity or become inoperable for any cause, the District reserves the right to refuse any connections which would use such facility until remedial action has been completed, and the District shall not be liable for any direct or consequential damages which occur to the Developer arising out of such the District's refusal to connect or time delay necessary to take remedial action. 17. The Developer and its agents agree to indemnify and hold the District harmless from any and all claims which may be assessed against the District as a result of the construction or maintenance of the work described in this Agreement prior to acceptance by the District. The Developer shall maintain in full force and effect during the construction period, the following insurance: a. Commercial General Liability Insurance with bodily injury and property damage limits of not less than: $1,000,000.00 Each Occurrence $2,000,000.00 General Aggregate $2,000,000.00 Products -Completed Operations Aggregate Limit DE Agr-6318021.docx (Form Update 12/19/17) Page 4 of 8 b. Business Auto Liability coverage for all owned, non -owned, and hired autos with bodily injury and property damage limits of not less than: $1,000,000.00 Each Accident A certificate of insurance and a copy of an endorsement to the Developer's Commercial General Liability Insurance policy, showing the District as additional insured as respects the work to be performed under this Agreement, shall be provided prior to scheduling the preconstruction meeting. Thirty (30) days written notice shall be given to the District for cancellation or expiration of this insurance. 18. The Developer shall notify the District the date work and construction described in this Agreement will commence, and said notice shall be given not less than 72 hours (not including Saturday, Sunday, or national holidays) prior to such date. No water distribution system facility shall be covered prior to inspection by the District. After work is commenced, it shall vigorously, consistently, and in a first-class workmanlike manner be carried to completion. The Developer shall maintain at the construction area at all times during construction, a representative to whom District notices may be given regarding construction. Said representative shall be designated in writing by the Developer before start of work. The Developer may request inspections during construction upon two (2) days notice to the District. 19. Testing of water system facilities shall be performed as required by the District and only after satisfactory tests have been completed and witnessed by the District's designated agent, will the work be accepted. The Developer agrees that at such time as the District has performed inspection of the water distribution system facilities & system connections and has delivered itemized punch lists to the Developer and/or the Developer's contractor, that the project will be pursued to final completion, including the performance of all necessary site restoration. 20. Upon completion of construction, the Developer or the Developer's contractor shall deliver to the District a guarantee in the amount of ten percent (10%) of construction costs or $5,000.00, whichever is greater, that a reliable contractor will make and pay for repairs necessary within two (2) years from the date of acceptance of said construction, arising from faulty labor or material. Form of guarantee is to be approved by general counsel for the District. This requirement is waived for public authorities; however, Developer shall be held accountable for any such repairs. Should any defects be discovered within the specified 2-year time period, Developer will be notified and given ample time to correct same. If defects are not corrected within the specified time, Lakehaven will perform the work and issue an invoice to the Developer. Said invoice shall be paid within thirty (30) days of issue date. This paragraph shall be valid beyond the release of this Agreement and until the District closes out the associated project account. 21. Upon completion of construction, the Developer shall submit, for acceptance and approval of the District, Bills of Sale for water distribution system facilities, mains and appurtenances installed and constructed pursuant to this Agreement, in a form acceptable to the District, together with such other engineering records and project cost data as may be required by the District. DE Agr-6318021.docx (Form Update 12/19/17) Page 5 of 8 22. As a condition of District acceptance of the project, the Developer shall submit to the District a non-refundable warranty inspection fee for water, as set forth in District Resolution No. 2017-1300, or any subsequent amendment thereto, to be held by the District and applied against actual expenses of the District incurred to complete warranty inspections following the two-year warranty period. 23. In the event new or modified District easements are required over Developer's property described herein, such easements, in form acceptable to the District, shall be delivered to the District as a condition of & prior to the activation of any new or modified service connections for the property. 24. In the event the Developer requests and the District provides water meters for the realty described herein, prior to the District's acceptance of work, the Developer agrees to be solely responsible for any loss or damage to such water meters or their installation, which occurs prior to said acceptance of work by the District. -25. Work and construction performed under this Agreement shall not be connected to the District's water distribution systems until all provisions and requirements of this Agreement and District Resolutions, on the part of the Developer, have been fully complied with. 26. The District and the Developer agree that in carrying out the terms of this contract, the Developer shall be acting as an independent contractor and in no respect shall Developer be deemed an agent or partner of the District. 27. The Developer shall not assign this contract without the written consent of the District. 28. The District shall provide water service following the District's acceptance of the water distribution facilities for operation and maintenance and upon payment of the connection charges as set forth and in accordance with District Resolution No. 2017-1300. Said connection charges shall consist of the Capital Facilities Charge (CFC), Service &/or Meter Installation Charge &/or Deposit, and any other such charges levied in accordance with said District Resolution No. 2017-1300 or amendments thereto or any other applicable District Resolution at time service is requested. 29. The parties agree that, if determined applicable by the District, the provision of latecomer reimbursements for system facilities constructed pursuant to this Agreement will be handled by separate agreement to be executed between the parties within a reasonable time following acceptance of the facilities and establishment of the appropriate latecomer reimbursement area by the District's Board of Commissioners. Any applicable latecomer reimbursement period will be limited to 15 years, or longer, pursuant to the provisions of state law. 30. Partial waiver or waiver by acquiescence by the District of any provision or condition of this Agreement shall not be a waiver of any other provision or condition of this Agreement. 31. This Agreement shall constitute an easement and servitude upon the property described herein and shall be binding upon the heirs, assigns and successors in interest to the DE Agr-6318021.docx (Form Update 12/19/17) Page 6 of 8 Developer. This Agreement shall constitute an equitable lien against property described herein and in the event of nonperformance by the Developer, as stated herein, the District may foreclose said lien in the manner authorized by law. 32. This writing constitutes the full and only agreement between the parties, there being no promises, agreements or understandings, written or oral, except as herein set forth, or as hereinafter may be amended in writing. 33. Upon execution of this Agreement, the parties agree in the event either of them is required to enforce any provision or provisions of this Agreement against the other, that the prevailing party shall be entitled, in addition to all other amounts to which it is otherwise entitled by this Agreement, to its actual attorney's fees and costs, including those incurred on appeal. DE Agr-6318021.docx (Form Update 12/19/17) Page 7 of 8 WITNESS our hands and seals. FEDERAL WAY PUBLIC SCHOOLS By Its Date: JCif�'JI' i State of �JaSl7 Lf �tc•Yr County of k-'L LAKEHAVEN WATER & SEWER DISTRICT, King County, Washington /L� -.- De elopm t Engineering Manager Dated: This record was acknowledged before me on de 22-V (Dane) by Qyjgyil t_.tM 6e.1 a" as 6tt Name) (Type of Authority, Title) of VVA-LI) (Company Narr�e) Mary Ludlle NNbft Notary PubUc Sfate of Washington WaADWreM 03/16M021 For recording in the State of Washington, the Notarial Seal must be fully legible and cannot intrude into document margins. Please affix seal in the space provided. DE Agr-6318021.docx (Form Update 12119/17) DATED: Cf.11�- iC (Signatu j Notary 104bfic Title My appointment expires Page 8 of 8 EXHIBIT `'A" LEGAL PROPERTY DESCRIPTION THE SOUTHEAST QUARTER OF THE NORTHEAST QUARTER OF THE SOUTHWEST QUARTER OF SECTION 8, TOWNSHIP 21 NORTH, RANGE 4 EAST, W.M., IN KING COUNTY, WASHINGTON; LESS THE EAST 30 FEET OF THE NORTH THREE -FOURTHS THEREOF; LESS THE WEST 30 FEET; LESS THE NORTH 30 FEET; AND LESS THE SOUTH 30 FEET. TAX PARCEL NO. 0821049035 RESUBMITTED APR 0 4 2019 Cri-Y OF EL WAy COMMUNry ❑EVELOpMEW PR OPERTY DEPICTION _ '• _ 1 8603400075 r0010 8 31249 000585�31257 Z6 ti w w k ec EXHIBIT "B" 0821049035 625 1601 620 S 316TH P—L----J`�94160C } -qlm � tI3 00C 604 / 7- 5 59600 -7nn S 314 rH St N D 100 FEEL 11 dnuuuuuuju 1600133 713 7��000035 31249 8588000040 31255 8588000045 31407 8588000050 31415 I 8588000055 31423 f 858800006 Lw 31431 I ! m 8588000065 31439 S 315TH ST 200 8588000070 31507 8588000075 31513 H 500060 8588000080 31610 31521 8586000085 y "15000�'� 31529 H 614 15001 13-1 con 858B000091 31605 rJ RESUBMITTED APR 0 4 2019 �MUNiTYYa��o�EW Administrative Policies and Procedures Series: 6000 — Administration and Management Support PEST AND PESTICIDE MANAGEMENT AND NOTIFICATION: 6895 - ATTACHMENT A Pre -approved Pesticides The following pesticides have been pre -approved for use by the Federal Way Public Schools. Only chemicals on this list are allowed for possession or use within the district. Any new chemical must be pre -approved by the IPM Coordinator prior to its purchase or use within the district. No chemicals will be purchased or otherwise brought onto a district site by anyone other than authorized Maintenance Department staff. Additional chemicals may be added to this list on an as -needed basis for specific uses throughout the year. These additions must have the approval of the IPM Coordinator. Chemical Intended Use Crossbow Used to control blackberry vines; Casoron Pre -emergent herbicide used to control weeds and grasses; Ranger Pro Non -selective herbicide used to control weeds and grasses; Ronstar Pre -emergent herbicide used to control weeds and grasses on gravel and sports tracks; Round-up/Max Pro Non -selective herbicide used to control weeds and grasses; Snapshot Pre -emergent herbicide used to control weeds and grasses on fence lines and warming tracks; Trimec Herbicide used to control weeds in grass areas; Wasp Freeze Insecticide used to kill wasps and bees. RESUBMITTED APR 0 4 2019 CITY OF FEDERAL. WAY COMMUNfTY DEVELOPMENT Adopted under Policy Governance — 8/28/12 Adopted or Previously Revised — 07/02 Federal Way Public Schools Page 1 of 1 Ni engineering ❑ c April 1, 2019 EJ Walsh, P.E. Director of Public Works 33325 8th Avenue South Federal Way, WA 98003 April I, 2019 Commercial Land Use Review Checklist Deviation Request Federal Way Public Schools Page I Re: Commercial Land Use Review Checklist Deviation Request Federal Way Public Schools Dear Mr. Walsh: This letter is an official written request for a deviation from the Commercial Land Use Review Checklist Under the "Required Storm Water Control and Treatment" section, the Commercial Land Use Checklist states: "Ifproperty is outside City center, facilities are above -ground" In addition, all three City of Federal Way Pre -application Conference Summaries comment under the Public Works Development Services Division: "Detention and water qualityfacilities must be above ground (i. e. open pond). Underground facilities are allowed only with approval from the City of Federal Way Public Works Department" This specific comment in the pre -application conference summary cannot be found in the City of Federal Way Municipal Code. To clarify this pre -application requirement, LPD reached out to Cole Elliot to verify if the project needed a variance through Public Works. He stated: I have looked high and low for a section in the Federal Way Revised Coed (FWRC), Development Standards, Comprehensive Plan and the City Core Section which would require all storm retention/detention systems outside of City Core to be above ground. I found It listed on our Pre - Application Conference summary and on the Development Services review checklist but I did not find that requirement in code. I was able to locate one maintenance policy regarding open ponds but that applies to systems the City will own and maintain. Therefore so long as it is clear in your design proposal that the proposed storm vaults will be owned and maintained by the School District it appears that you do not need to apply for a variance thru the Public Works Department. Cole Elliott, PE Development Services Manager Federal Way 33325,311 Ave South RESUBMITTED Federal Way, WA 98003 Office: (253) 835-2730 Cell: (253) 293-4152 www. CityofFed a ra! W (ay. c o m APR 0 4 2019 COMMUNRY f EVELC) MEpjT NI Ipcengineering April I, 2019 Commercial Land Use Review Checklist Deviation Request Federal Way Public Schools Page 2 However, upon receiving preliminary Land Use Comments, the City is requiring an official written request. We are proposing the following: 1. Underground detention facilities for Mirror Lake for on -site and off -site improvements 2. Underground detention facilities for Lake Grove for on -site and off -site improvements 3. Underground detention facilities for Wildwood for on -site improvements The improvements as required would not be harmonious with existing street improvements, would not function properly or safely or would not be advantageous to the neighborhood or City as a whole." An above ground detention facility such as an open pond is not appropriate for a school setting. It would increase the risk of student safety. In the school district opinion, the fencing requirements for an above ground facility will not guarantee prevention of student access and will require additional supervision. In addition, above ground detention facilities take away outdoor program space for students. The Outdoor learning areas are crucial to the school district's agenda to provide a diversified learning environment for the community's youth. In summary, the City's acceptance of the deviation request above, the usage of underground detention facilities would be better suited to function safely and be advantageous for a school environment and ultimately the local community. Thank you for your consideration and please do not hesitate to contact me if you have any questions or need additional information. Sincerely, PI r Je fer L. AAgraves, P.E. Project Manager I Sr. Civil Engineer Lakehaven WATER & SEWER DISTRICT SEWER CERTIFICATE OF AVAILABILITY Lakehaven Water & Sewer District — Development Engineering Section 31623 — 1st Ave S * PO Box 4249 * Federal Way, WA 98063-4249 Telephone: 253-945-1581 or 253-945-1580 * Email: DE@Lakehaven.org This certificate is intended to provide the applicant, land use agencies &/or public health departments with information necessary to evaluate development proposals. Lakehaven Water & Sewer District, at its sole discretion, reserves the right to delay, or deny, sewer service based upon capacity &/or supply limitations in Lakehaven's or Other Purveyor's system facilities. Proposed Land Use: ❑ Building Permit-SFR () ❑ Building Permit-MFR Q 0 Building Permit -Other ❑ Subdivision () ❑ Short Subdivision () ❑ Binding Site Plan ❑ Boundary Line Adjustment ❑ Other (specify/describe) . Tax Parcel Number(s): 0821049035 Site Address: 625 S 314"' St Lakehaven GIS Grid: I-08 Ex. Bldg. Area to Remain: 0 sf (existing to be demolished) New Bldg. Area Proposed: 62,000 sf 5£WER SYSTEM INFORMATION 1. ® Sewer service can be provided by service connection to an existing IL diameter sewer main that is approximately 35 +L- feet from the site and the sewer system has the capacity to serve the proposed land use. 2. ❑ Sewer service for the site will require an improvement to Lakehaven's sanitary sewer system of: ❑ a. feet of " diameter sewer main or trunk to reach the site; and/or ❑ b. The construction of a sanitary sewer collection system on the site; and/or ❑ c. A major portion of Lakehaven's comprehensive wastewater system plan would need to be implemented and/or constructed; and/or ❑ d. Other (describe): 3. ID a. The existing sewer system is in conformance with Lakehaven's Comprehensive Wastewater System Plan. ❑ b. The existing sewer system is not In conformance with Lakehaven's Comprehensive Wastewater System Plan and an Amendment to this Plan will be required. This may cause a delay in issuance of land use approvals or permits. 4. ® a. The proposed site land use is within the corporate limits of Lakehaven Water & Sewer District, or has been granted Boundary Review Board approval for extension of sewer service outside of Lakehaven's sewer service area. ❑ b. Annexation or Boundary Review Board approval will be necessary to provide service. S. Sewer service is subject to: ® a. Payment of connection charges (to be determined by Lakehaven); ❑ b. Proof or reservation of easement(s) as required by Lakehaven; ® c. Other: 5 wer §ervice connection pgrmits reauired one to d1swrinect existing, w Comments/special conditions: The 5ft has one existing sewer connection SSCP 1524) location unknown. I hereby certify that the above sewer system information is true. This certification shall be valid for one (1) year from the date of signature. Name: BRIAN ASBURY Title: DEVELOPMgNT ENGINEERINg SUPERVISOR Signature: Date: ` RESUBMITTED APR 0 4 2019 Crry OF FEDERAL WAY CO MflMitlNr Y DEV OpMENT 0821049035 swr (Form Update 12/28/18) Page 1 of 2 '042 1 V49221 850 40OU F OD0030 9 0D090 85 ODQp15 S 8 00 130 g 1220 8tfi03400025j3i7 080 �— s 8688000p20 } 0821049038 31226 I 65 9BD0020 9600100 31227 515 86038-4 400020 138034[10085 LU 31234 31233 5S59Et0011[18688000D25 _� r= - 4- ] 31233 8 0 13140 85D34D0015 88n340D070 Ua�- �65960n12 ig O1"r{�717 8588000030 'yii 7049157 31242 31241 , 980n 50 R� Mo1�30 31241 158 0 0145 31280 Ca LU 18t303400010 88n34DOD76 > 703 1, I 212 � 31241 31249 F 5a96Dii14U 8588000035 g 31249 8 80 0 5�0 iz-8BD3400D05 86034Q0080 98D01 0 7D49 1 5Q 3125$ 31257 704 $2104 2718 E36880D004D 31255 0 13155 �' 4] -u 09 -1 12 s"p�'s`A►� S�4TIYST 85ES000045 ': 2. 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I82 NOTE: Laketiaven Water and seer Sewer Certificate of Availability District nefther warrants nor guarantees Parcel 0821049035j the accuracy of any faciDty information o 100 a provMed Facility locations and condftions 10 are subject to field ver0cation. Felt 21EV2O19 KCM 0821049035 swr (Farm Update 12/28/18) Page 2 of 2 Lakehaven if AI ER & SEWER DISTRICT 1 Lakehaven Water & Sewer District - Development Engineering Section 31623 - 1st Ave S * PO Box 4249 * Federal Way, WA 98063-4249 Email: DE@Lakehaven.org # Telephone: 253-945-1581 or 253-945-1580 This certificate is intended to provide the applicant, land use agencies &/or public health departments with information necessary to evaluate development proposals. Lakehaven Water & Sewer District, at its sole discretion, reserves the right to delay, or deny, water service based upon capacity &/or supply limitations in Lakehaven's or Other Purveyor's system facilities. Proposed Land Use: ❑ Building Permit-SFR () ❑ Building Permit-MFR () ® Building Permit -Other ❑ Subdivision () ❑ Short Subdivision () ❑ Binding Site Plan ❑ Boundary Line Adjustment ❑ Other (specify/describe) Tax Parcel Number(s): 0821049035 Site Address: 625 S 314w St Lakehaven GIS Grid: I-08 Ex. Bldg. Area to Remain: 0 sf (existina to be de # ed New Bldg. Area Proposed: 662 Q00 sf WATER SYSTEM H41FORMATI❑N 1. ❑ Water service can be provided by service connection to an existing " diameter water main that is approximately feet from the site: 2. ® Water service for the site will require an improvement to Lakehaven's water distribution system of: ® a. 5-10 + - feet of 8" diameter water main to reach the site; and/or ® b. The construction of a water distribution system on the site; and/or ❑ c. A major portion of Lakehaven's comprehensive water system plan would need to be implemented and/or constructed; and/or ® d. Other (describe): Lakehaven Developer Exten5fon DE Agreement re Fred. 3. ® a. The existing water system is In conformance with Lakehaven's Comprehensive Water System Plan. ❑ b. The existing water system Is not in conformance with Lakehaven's Comprehensive Water System Plan and an Amendment to this Plan will be required. This may cause a delay in issuance of land use approvals or permits. 4. ® a. The subject property is within the corporate limits of Lakehaven Water & Sewer District, or has been granted Boundary Review Board approval for extension of water service outside of Lakehaven's water service area. ❑ b. Annexation or Boundary Review Board approval will be necessary to provide service. S. Water service is subject to: ® a. Payment of connection charges (to be determined by Lakehaven); ® b. Proof or reservation of easement(s) as required by Lakehaven; ® c. Other: DE ree n *2 above project must be ac(2epted by Lakehaygn.ri domest!c or irrl a ion sprvlce connection activ Comments/special conditions: Protect existingwaterr r mains d 'n ns ru ion The nearest fire hydrants will located on the Property (number & location TBD by fire marshal). System hydraulic model results (FF #345a, copy attached) indicate that Lakehaven's standard maximum allowable liquid velocity of 10 ft/s in the existing (and proposed new onsite) water distribution system, at no less than 20 psi is exceeded at a fire flow rate above 1800 GPM. This flow figure depicts the theoretical performance of the water distribution system under high demand conditions. Fire flow rates greater than this may be accommodated through water distribution system improvements, contact Lakehaven for additional information. 538 Pressure Zone Est. Meter Elevatlon(s)-GIS: 440+/-, Est. Pressure Range at Meter(s) (psi): 33-42 I hereby certify that the above water system information is true. This certification shall be valid for one (1) year from the date of signature. Name: BRIAN ASBURY Title: DEVELOPMENT ENGINEERING UPE VI i Signature: y Date: RESUBMITTED APR o 4 2819 0821049035 wtr.docx (Form Update 12/28/18) � OF F R1 of 2 COMMUNfiY DEVELOPMENT W 7GDJC5it1JL1l $b88fFi XZ'J I i ap 8" E3 sry ---- 0002 31227; 724 31227 958 W3135 Q j a 5559wM 1 59�r25110 8588 0521A49038 JS40DO20i F2L1 t 515 .31234 I �, 2 37233 85q 0�0i 40 u z S 3�13'FN S . ` -� 5538 kit 2 95 234 _ KrM 40M 15 �31241 f65 - '`�ti17 BOD-DO30 g 242 3i242 x 55 5 30'S0. 559Ok73Q 31241 aI E34ii0l�q{?77753 F13 _ 3124E I `� 19EW0a1jD35 A 150 31249 31249 31 so E'f 3 40DID M F 59500 ! '-DOD ca 31257 iO4 a821, 271 7,28 E5BB1}D7340 3I 58 11 31255 85B8.3 M 45 85 i 63 �A31407 408 g^fJF W32' 349�ra= ti $5880:�5 SAS 3€s,5 314111 � 4 �i� 3i41F 3 435 q ti 0921NK35 °58600D055 i 025 _ v 31423 858 x�? 7�J _ ��4? 75 31431 9 432 — 4 b5SBODD3e5 85 000180 31439 1440 Q OB2104-K52 S 315TH S T ? 315?I 9 � Ex. Wbr iYE5 r ' �F OB2 045127 `L'b ; dF # 272, 2" Dome5t� F880^�7D 7 0 $- 508 $J 21530 Hydrant # 25545 2" Irwigatin 335117 0 Ryp) # 23464 4" Fire .� Ea88D=75434 $5 _. 9417fD 10 S41 ei?0 7 CMD 0 41 TOM � 440 454 36 916 i941 oil E58S 31521 - s1 T' 4 i ir, 7 ' 8D 7 15 0 • ti85 ON195 631 _ L - 4'. - �} • 311800 �ta� MD50 3199:+ �- 311914 853BODD85 1522 . �. 21 ' 100., 31529 V 4- C 700` 0 7 17, 01 0 W7 $39a4 s '0 85&8�a}0M90 It -~ 435 7a47 .� 3u? 50 1 i �30 � 794 , 5YJD 3 31Oa5 r� (93-r 9410M 31021 31702 417OU DO 7948~20i00 ti 1MS 9415001b 700095 88�77 5 Y 47 i �02 � 525 'S0 d �� T r 31927 � 150 � ?r0 3169 3 � u � E0 512 79497 4 �_ �j 858B0001OD 67 -.. ; Y ;M ' 7$41 eD011i9 = t . m{ 94n r37 31921 WON as #M: iAkawpw Intsr .a 3ya Water Certlfcate of Availability D76trtt n9ittler warmRts nor $Larants95 Ike accuracy of ary iae1J11 anfonnabon tao Parcel 4821f�4049IC36 prov)Wm Fa-W som�taonzamr3��r. ltdr.•� ors su b}amt to fleld war Efiee BGrW , W312D 19 KCht 0821049035 wtr.docx (Form Update 12/28/18) Page 2 of 2 Lakehaven Hydraulic Model Fire Flow Estimate Request/Reporting Form Requested By: Federal Way Public Schools Date: 7120/18 Location to be Modeled: proposed Hydrants for Mirror Lake Elementary Lakehaven % Section Grid: U8 " "fio' S315"St&6d'Ave S Add. Description: I See attached map PressureZone: 538 Ryults RV: Date: Model Run No.: John Sowm 8/2/18 Master Water System Model 2007.net FF #345a Condition Pressure (psi) Flow (gpm) Static 35 0 Fire Flow 20 2800 NOTES: Lakehaven's adopted level of service goals for fire flow rates are 1000 gpm within single family residential areas (including duplexes) and 2500 gpm for multi -family, commercial, industrial areas. Model results depict the theoretical performance of the water system under high demand conditions and are not guaranteed to represent actual system performance. A design professional should be consulted for site specific design purposes. The calculated fire flow capacity in the above table is based on a currently available residual system pressure of 20 psi at the location modeled. The model indicates that Lakehaven's standard maximum allowable velocity of 10 fVs (for existing pipes) is exceeded at a fire flow rate above 1800 gpm. Fire flow capacities greater than 1800 gpm may be accommodated through water system improvements. 080218FF 345a - Mirror Lake (Form Update 1/6/17) . I , E II1I I n• ' \I S ' + N � ' I:3 FEDERAL WAY SCHOOL DISTRICT ;;' MIRROR LAKE ELEMENTARY SCHOOL 5li Yty I FFDR&WAY YMM FEDERAL WAY Department of PUBLIC SCHOOLS Maintenance & Operations TO: Department of Ecology FROM: Mike Benzien, Executive Director of Maintenance and Operations PROJECT: Mirror Lake Elementary School, Lake Grove Elementary School, and Wildwood Elementary School SUBJECT: SEPA Square Footage Update, WAC 197-11-625 DATE: April 3, 2019 This memorandum is regarding the Federal Way Public Schools capital bond projects SEPA Square Footage. Specifically for Mirror Lake Elementary School SEPA square footage wording change from "60,322 square feet vs. 63,590 square feet to 65,825 square feet'. Changing the SEPA wording for the square footage does not affect the overall compliance and/or does not create significant impacts. As projects move through the design process, there are adjustments to the square footages. In the schematic document phase of this project, 60,322 square feet vs. 63,590 square feet was the project evolving through the design process. In the current construction document phase, 65,825 square feet is what this project has come to its conclusion. Therefore, Federal Way Public Schools, making this SPEA square footage wording change allows the project to be consistent with the construction documents. Mike Benzien RESUBMITTED APR 0 4 2019 Cl TY OF FEDERAL WAY COMMUNfTY DEVEI r'm"M Federal Way Public Schools Each Scholar: A voice. A dream. A BRIGHT future. 1211 S. 332"d St, Federal Way, WA 98003 1 p.253.945.5930 I f.253.945.59591 www.fwps.org FEDERAL WAY PUBLIC SCHOOLS TO: Department of Ecology Department of Maintenance & Operations FROM: Mike Benzien, Executive Director of Maintenance and Operations PROJECT: Mirror Lake Elementary School, Lake Grove Elementary School, and Wildwood Elementary School SUBJECT: SEPA interim period where the existing building and the proposed building are contributing impervious area to the storm system. Wording added to page 10 of 31 WAC 197-11-625 DATE: April 3, 2019 This memorandum is regarding the Federal Way Public Schools capital bond projects SEPA interim stormwater treatment system. Specifically for Mirror Lake Elementary School, Lake Grove Elementary School and Wildwood Elementary School SEPA interim period where the existing building and the proposed building are contributing impervious area to the storm system. Wording added to,page 10 of 31 as follows: "A sediment pond (storm system for interim conditions) has been sized and shown on TESC plans. Sizing calculations are included in appendix B and a SWPPP has been included in Appendix C of TIR Report. Refer to attached Memo that addresses "where the existing building and the proposed building are contributing impervious area to the storm system"." Adding the SEPA wording for addressing "interim stormwater treatment system" does not affect the overall compliance and/or does not create significant impacts. Including this information speaks to the discharges in excess of the NPDES Construction Stormwater limits. In the schematic document phase of this project, the interim stormwater treatment system was missed. In the current construction document phase, interim stormwater treatment system are being proposed. Therefore, Federal Way Public Schools, making this SPEA stormwater treatment wording change allows the type of stormwater treatment to change, while still adhering to the required enhanced treatment standards, per project necessitation. Mike Benzien RESUBMITTED APR 0 4 2019 CITY OF ownoRkL pmiw Federal Way Public Schools Each Scholar: A voice. A dream. A BRIGHT future. 1211 S. 332"d St, Federal Way, WA 98003 1 p.253.945.5930 I f.253.945.59591 www.fwps.org FEDERAL WAY Department of PUBLIC SCHOOLS Maintenance & Operations TO: Department of Ecology FROM: Mike Benzien, Executive Director of Maintenance and Operations PROJECT: Mirror Lake Elementary School, Lake Grove Elementary School, and Wildwood Elementary School LPD Project Numbers: 094-18-01, 094-18-02, and 094-18-03 SUBJECT: SEPA stormwater treatment wording change, Sand Filters to Enhanced Treatment addendum, WAC 197-11-625 DATE: March 8, 2019 This memorandum is regarding the Federal Way Public Schools capital bond projects SEPA. Specifically, for Mirror Lake Elpfnentary School, Lake Grove Elementary School, and Wildwood Elementary School SEPA stormwater treatment wording change from "Sand Filters" to "Enhanced Treatment". Changing the SEPA wording for the type of stormwater treatment from "Sand Filters" to "Enhanced Treatment" does not affect the overall compliance and/or does not create significant impacts. A sand filter is a type of enhanced treatment. Changing the wording to "Enhanced Treatment" allows the project to use other approved forms of stormwater treatment methods to meet the required enhanced treatment standard. In the schematic document phase of this project, sand filters were proposed to meet the enhanced treatment standard. In the current construction document phase, media filters are proposed. Media filters also meet the enhanced treatment standard. Therefore, Federal Way Public Schools making this SEPA stormwater treatment wording change allows the type of stormwater treatment to change while still adhering to the required enhanced treatment standards per project. Mike Benzien RESUBMITTED APR 0 4 2019 ClTY uNm�n°�opMENT Federal Way Public Schools Each Scholar: A voice. A dream. A BRIGHT future, 1211 S. 332nd St, Federal Way, WA 98003 1 p.253.945.5930 i f.253.945.59591 www.fwps.org FEDERAL WAY Department of PUBLIC SCHOOLS Maintenance & Operations TO: Department of Ecology FROM: Mike Benzien, Executive Director of Maintenance and Operations PROJECT: Mirror Lake Elementary School, Lake Grove Elementary School, and Wildwood Elementary School SUBJECT: SEPA Parking count section 14 (d) change wording for parking count from SEPA 14 (d) from 61 parking stalls to "62 parking stalls". WAC 197-11-625 DATE: April 3, 2019 This memorandum is regarding the Federal Way Public Schools capital bond projects SEPA Parking Count. Specifically for Mirror Lake Elementary School SEPA parking wording change from "61 parking stalls to 62 parking stalls". Changing the SEPA wording for the parking count does not affect the overall compliance and/or does not create significant impacts. As projects move through the design process, there are adjustments to the parking stalls. In the schematic document phase of this project, 61 parking stalls were indicated, and as the project continued to evolve through the design process, it was able to increase. In the current construction document phase, 62 parking stalls was what the project has determined. Therefore, Federal Way Public Schools, making this SEPA parking count wording change allows the project to be consistent with the construction documents. Mike Benzien RESUBMITTED APR 0 4 2019 Crfy of FEDERAL WAy COMMUNITY DEVELOPMENT Federal Way Public Schools Each Scholar: A voice. A dream. A BRIGHT future. 1211 S. 332"d St, Federal Way, WA 98003 1 p.253.945.5930 I f.253.945.59591 www.fwps.org FEDERAL WAY Department of PUBLIC SCHOOLS Maintenance & Operations TO: City of Federal Way Community Development FROM: Mike Benzien, Executive Director of Maintenance and Operations PROJECT: Mirror Lake Elementary School SUBJECT: FWPS Hazardous Materials Inventory Statement DATE: April 3, 2019 This memorandum is regarding the Federal Way Public Schools capital bond projects Federal Way Revised Code (FWRC) 19.145.490 (FWRC 19.185.070). Specifically for Mirror Lake Elementary School hazardous material inventory statement, an operations and management manual using best management practices (BMPs), and integrated pest management (IMP) for fertilizer and pesticide/herbicide applications. Federal Way Public Schools (FWPS) has attached their Washington State Department of Agriculture Pest Management record application log for Mirror Lake. Our list of Pre -approved pesticides, these are the only pesticides approved to be used on District property. Fertilizer is not on this log due to the fact that we do not need to report it to the state. Here's the information on the fertilizer: Simplot Partners 20-0-5 X-Cote slow release, normally applied spring and fall 4.5 lbs. per 1000 square feet. Fertilizer is only applied to the Play / Sports Field. FWPS is a Star Certified School District. Our philosophy has always been to use chemicals very sparingly around our facilities. We have also always used the least toxic products that will do the job. We always follow our Integrated Pest Management (IPM) policy, this serves as the District's pesticide use policy referred to in the law. Mike Benzien RESUBMITTED APR 0 4 2019 MMMU�°MY DEVE opi� Federal Way Public Schools Each Scholar: A voice. A dream. A BRIGHT future. 1211 S. 332"d St, Federal Way, WA 98003 1 p.253.945.5930 I f.253.945.59591 www.fwps.org I CITY OFCITY HALL Federal Way, , Avenue800South Federal Way, WA 98003-6325 Federal (253) 835-7000 Centered on Opportunity wwwcityoffederalway.com Jim Ferrell, Mayor March 8, 2019 Mr. Ray Vefik CBRE/Heery FILE 1420 Fifth Avenue, Suite 1700 Seattle, WA 98101 nrefik(?ftvps.org Rea File #19-100188-00-up; TECHNICAL REVIEW LETTER Mirror Lake Elementary School, 625 South 314th Street, Federal Way Dear Mr. Vefik: City staff has completed the initial review of your Process III Master Land Use (NMU) application submittal package. Site improvements include the replacement of the Mirror Lake Elementary School building, stormwater treatment, play field, parking reconfiguration, and landscaping. TECHNICAL COMMENTS Unless otherwise noted, the following comments provided by staff reviewing your project must be addressed prior to issuing the administrative site plan decision. Please direct questions regarding any of the technical comments to the appropriate staff representative. Becky Chapin, Planning Division, 253-835-2641, becky.chapin c@cityol'federalway.com 1. Not all reports or documents reference in the SEPA checklist were provided to the city. Please provide the following reports for the city's files: Subsurface Investigation Report, PBS Engineering and Environmental, Inc. (9/24), and Soils Analysis to detect the presence of historic arsenic and/or lead contamination. The subject property is within the five-year wellhead capture zone, which is designated as a critical aquifer recharge area. Per Federal Way Revised Code (FWRC) 19.145.490, any proposed development located in critical aquifer recharge areas must submit a hazardous materials inventory statement. As the total landscaped and lawn area exceeds 10,000 square feet, FWRC 19.185.070 requires a management plan for any pesticide and/or herbicides that will potentially be used for the long term care of the development's landscaping. Please provide a hazardous materials inventory statement, an operations and management manual using best management practices (BMPs), and integrated pest management (IPM) for fertilizer and pesticide/herbicide applications. The BMPs shall include recommendations on the quantity, timing, and type of fertilizers applied to lawns and gardens to protect groundwater quality. 3. Pursuant to FWRC 19.125.160, no improvement or structure may be in a required yard except as follows: (5) Fences and railings not over six feet in height may be located in required yards. Mr. Ray Vefik Page 2 of 7 March 8, 2019 The proposed fence around the perimeter of the school is 10 feet in height. The fence height must be reduced to six feet in height, or relocated outside the required yard setbacks. In addition, FWRC 19.115.090(1)(f requires such fencing to contain vinyl -coated mesh, powder -coated poles, dark color(s), and architectural element(s), such as pole caps and/or a decorative grid pattern. Provide fence details of how this requirement is met. 4. Type III perimeter landscaping is meant to provide a visual separation of uses from streets and between compatible uses as to soften the appearance of parking areas and buildings elevations. To meet this intent, the perimeter fencing should be located on the interior side of the perimeter landscaping along the right-of-ways. 5. Sheet L200 lists incorrect parking lot landscape calculations. Per FWRC 19.125.070(2), Type IV landscaping is required in the amount of 22 square feet per parking stall when 50 or more parking stalls are provided. A total of 76 parking stalls are provided. Please revise the calculations for required parking lot landscaping. 6. Pedestrian connections from the northeast and southeast parking lots to the school building are needed. Per FWRC 19.115.050(4), all pedestrian pathways through the asphalt parking areas require a variation in paved texture and color. Approved methods of delineation includc stone, brick, or granite pavers, exposed aggregate, or stamped and colored concrete. Please provide material choice on resubmitted sheets. 7. Please provide either a color rendition of the elevation drawings with a material list, or a color and materials board, with the resubmittal. 8. The building design provides alternative methods to organize and shape the structural elements, instead of providing the significant structural modulation stated in FWRC 19.115.100(3). Staff will consider the alternative method to satisfy community design guidelines if all of the following architectural and accessory design elements listed in FWRC 19.115.060(3)(b) are provided along the west elevation: • Window openings with visible trim material, or painted detailing that resembles trim; • Artwork, such as mosaics, murals, decorative masonry, or metal patterns or grillwork, sculptures, relief, etc., over a substantial portion of the blank wall surface. (The Federal Way Arts Commission may be used as an advisory body at the discretion of the planning staff); • Architectural features, such as setbacks, indentations, overhangs, projections, articulated cornices, bays, reveals, canopies, and awnings; and • Material variations, such as colors, brick or metal banding, or textural changes. Per FWRC 19.275.080, temporary trailers, buildings, or other structures used for construction offices, or outdoor storage containers used temporarily to store construction materials, and normally associated with construction of a building or development, are permitted on the subject property during building or development subject to Process I approval, or integration into the land use process applicable to the underlying project. To avoid requiring a separate Process I application, staff recommends you include a plan that depicts the location of temporary trailers and/or construction materials. with the Process III resubmittal. 19-100188-00-UP Doc. LD. 78711 Mr. Ray Vefik Page 3 of 7 March 8, 2019 Cole Elliott, Public Works — Dev. Services, 253-835-2730, cole.elliott@cityoffederalway.com General 1. The plan set and SEPA document fail to address how student and construction activities will coexist on this site through the remodel. The city would like to avoid a repeat of the incident where a picture was taken of a student touching the wheel of a moving backhoe. SEPA 2. Page 10 of 31 does not address an interim period where the existing building and the proposed building are contributing impervious area to the storm system. In order to avoid a repeat of the Federal Way High School remodel and the fines associated with discharges in excess of the NPDES Construction Stormwater limits. Design an appropriate interim stormwater treatment system to address this issue. 3. Page 13 of 31 identifies the water quality treatment as a sand filter and water detention facility. Unless the SEPA is amended, both the plan and the Technical Information Report (TIR) must be amended to this treatment system. Technical Information Report (TIR) 4. Use of underground detention facility outside of the City Center requires approval from the Public Works Department. 5. Provide support documentation which demonstrates that the biofiltration swale and proposed media filter drains meet or exceed the enhanced basic water quality treatment. 6. Define the difference between a "biofiltration swale" and a "media filter drain." 7. Page 7, Section 3, Task 2, Sensitive Areas — The design engineer should check with the City of Federal Way Planning Division for any sensitive areas identified within the city. 8. Page 8, Section 3, Task 2, Critical Areas — Again, check with Planning Division for critical areas maps. 9. Page 8, Section 3, Task 2, WaterQuality Issues — Typically, this refers to surface water quality issues, not water distribution issues (Lakehaven). 10. Page 10 Table 1, Site Area Summary — The table should show the pre -development, interim condition, and post development. 11. Provide a figure to help understand sub -basin areas. 12. Provide a full evaluation of all Low Impact Development BMP's, and the rational for the selection of those provided on site. 13. Provide preliminary sizing calculations for the bioswale, the media filter drain, Baker Tank, and the Stormtech Chambers. 19-100188-00-UP Doc. I.D. 78711 Mr. Ray Vefik Page 4of7 March 8, 2019 14. On Figure 5, any asphalt area which allows vehicle access cannot be considered NPGIS. 15. The information promised in Appendixes A and B must be submitted at this time. Plans 16. Explain the proposed solid waste, and identify the location on the site plan. 17. No information has been provided which details how elementary students and construction activities will coexist on this site. 18. Each civil sheet shall have the following note in bold: NO TEMPORARY CERTIFICATE OF OCCUPANCY (TCO) OR CERTIFICATE OF OCCUPANCY (CO) SHALL BE ISSUED UNTIL ALL STORMWATER AND FRONTAGE IMPROVEMENTS ARE INSTALLED, INSPECTED AND APPROVED BT THE CITY OF FEDERAL WAY. Section 200 19. Provide catch basin numbers, flow direction, rim, and invert elevations. 20. Proposed retention/detention gallery appears to have at least three separate inlets. The design must maximize the distance between inlets and outlets to provide flow through design. 21. The proposed Compost Amended Bioswale appears to show two inlets without an outlet. Section 400 22. The current design does not provide any justification for a curb return entrance for the buses. Either apply for an additional modification, or revise to a standard commercial driveway approach. Section 500 23. No water quality treatment is currently being proposed along 6th Avenue South. 24. The proposed street sections along 61h Avenue South and South 3141h Street do not meet Standard Street Section "S." The street modification has not been reviewed and was not received until after the use process packet. The street improvement section must correspond to approved right-of-way modification. 25. Street lights and street trees must be shown conceptually on the use process plans. 26. Provide a bus tum modeling for any proposed bus entrance. 27. Street overlay requirements will trigger ADA improvements. ADA upgrade to ramps on each leg of an intersection will be required. Crosswalks must be provided on both sides of the intersections. 19-100188-00-UP D- I.D. 78711 Mr. Ray Vefik Page 5 of 7 March 8, 2019 Sarady Long, Public Works — Traffic, 253-835-2743, sarady.long@ciytoffederalway.com General 1. The information in the SEPA document, traffic report, and plan set should be consistent. For example, the SEPA document and the TIA stated different square footages of the proposed school (60,322 square feet vs. 63,590 square feet). 2. The plan set should depict improvement specified/identified in the SEPA document and traffic report. Plans 1. The civil plans must depict the correct frontage improvement on South 3141h Street, 61h Avenue South, and South 3151h Street, including the appropriate right-of-way dedication. All improvements shall be within the specified right-of-way. Please note, the submitted right-of-way Street Improvement Modification/Waiver has not been issue by the Public Works Director. 2. Per the TIA, off -site improvements on the south side of South 3141h Street, from the property site east to 81h Avenue South, is needed with the revised safe school walking route. The civil plan must depict this off -site improvement. 3. Provide a school bus turning diagram at the driveway and adjacent street intersections to ensure the school bus can enter, maneuver, and leave the site without encroaching onto opposing traffic lanes or mounting a curb. 4. Per the TIA, the crosswalk on 81h Avenue at the South 3141h Street intersection will be relocated to the south leg of the intersection. As such, the plan set must show removal of the existing raised crosswalk and associated sign on the north leg, and a new raised crosswalk on the south leg with associated signage. 5. Show removal of the existing crosswalk and associated signs on South 3141h Street. The curb ramp at the northeast corner of the intersection will need to be upgrade to meet the ADA. 6. The on -site parent drop-off and pick up storage area must be designed to accommodate the 951h percentile queues length. Verify that queues will not back up onto South 3141h Street. 7. The Public Works Traffic Division cannot support the proposed parking restriction on South 314th Street and 61h Avenue South. The school is located in a high density residential neighborhood with a planned road incorporating on -street parking. The city will consider parking restrictions due to safety issues, such as sight distance. 8. Show the non -motorized path along the south side of the property to meet the block perimeter standard as required under FWRC 18.55. 9. The proposed crosswalk located on the east leg of the South 3141h Street and 71h Avenue South intersection, and should be converted to a raised crosswalk with appropriate signage. 10. Show the conceptual streetlight on South 3141h Street and 6th Avenue South. 19-100188-00-UP Doc. I.D. 78711 Mr. Ray Vefik Page 6 of 7 March 8, 2019 11. Show the 20 mph school zone flasher on South 314th Street and 6th Avenue South on the plan set. TIA Review 1. The TIA does not address the school flashing on 6th Avenue South. The TIA identified installing a 20 mph school zone flasher on 8th Avenue South and South 314th Street. However, there is an existing school zone flasher on 8th Avenue South installed by the city. 2. Provide a queuing analysis at the parent drop off/pick up area to ensure the on -site storage will be adequate to accommodate the 95th percentile queues length to ensure traffic will not back up onto South 314th Street. 3. Revise Page 3 of the TIA to include roadway frontage improvements along 6th Avenue South and South 315th Street consistent with page 21 of SEPA document. SEPA CHECKLIST — TRANSPORTATION 1. The TIA identified mitigate measures to reduce the project impacts. These mitigation measures should be included in SEPA document as proposed measures to reduce or control transportation impacts. 2. Verify the specified parking in section 14(d) is consistent with the total provided on the plan set. Brian Asbury, Lakehaven Water & Sewer District, 253-946-5407, basbury@lakehaven.org Water • Lakehaven issued a Water Certificate of Availability for the proposed project/property on February 5, 2019; the certificate is valid for one-year from the date of issuance. • Hydraulic model results (FF #343a) for the proposed onsite water distribution system indicate that Lakehaven's standard maximum allowable system liquid velocity of 10 ft/s, at no less than 20 psi, will be exceeded at a fire flow rate above 1,800 GPM. This flow figure depicts the calculated performance of the existing water distribution system under high demand conditions. C A Developer Extension (DE) Agreement was executed between Lakehaven and Federal Way Public Schools on January 9, 2019, to manage construction of the proposed onsite water distribution system. However, no water system plans have yet been submitted to Lakehaven to commence the initial DE plan review processes. New onsite water main would connect to existing water mains in South 314th Street and 6th Avenue South. SEWER ■ Lakehaven issued a Sewer Certificate of Availability for the proposed project/property on February 5, 2019; the certificate is valid for one-year from the date of issuance. 19-100188-00-uP Doc I.D. 78711 Mr. Ray Vefik Page 7 of 7 March 8, 2019 • The applicant has proposed a new sewer service connection to the existing sewer main in 61h Avenue South. • A separate Lakehaven Sewer Service Connection Permit is required for each new connection to the sanitary sewer system, or any modification (disconnect, etc.) to an existing sewer service connection, in accordance with standards defined in Lakehaven's current "Fees and Charges Resolution." APPLICATION STATUS The review period for the Use Process III application has stopped and the application is on hold until requested items are resubmitted. When resubmitting requested information, please provide a written response to each of the above -referenced items, four copies of corrected reports, and six copies of corrected full size plans with the enclosed resubmittal form. Note: enlargement plans are not needed. The overall site plans/ landscape plans provide sufficient details. Pursuant to FWRC 19.15.050, if an applicant fails to provide additional information to the city within 180 days of being notified that such information is requested, the application shall be deemed null and void and the city shall have no duty to process, review, or issue any decisions with respect to such an application. If you have any questions regarding this letter or your development project, please contact me at 253-835- 2641, or becky.chapin@cityoffederalway.com. Sincerely, Becky Cha Senior Planner enc: Resubmittal Information Handout c: Brian Davis, Community Development Director Cole Elliott, Development Services Manager Sarady Long, Senior Transportation Planning Engineer Brian Asbury, Lakehaven Water & Sewer District Mike Benzien, Federal Way Public Schools, mbenzien@fwps.org 19-100188-00-UP Doc. I.D. 78711 Federa Way DATE: 2/21/2019 TO: Becky Chapin Senior Planner FROM: Cole Elliott, P.E. Development Services Manager MEMORANDUM Public Works Department SUBJECT: MIRROR LAKE ELEMENTARY SCHOOL - (19-100188-00-UP) 625 S 314TH ST GENERAL 1. The plan set and SEPA document fail to address how student and construction activities will coexist on this site through the remodel. The City would like to avoid a repeat of the incident where a picture was taken of a student touching the wheel of a moving backhoe. SEPA 2. Page 10 of 31 does not address an interim period where the existing building and the proposed building are contributing impervious area to the storm system. In order to avoid a repeat of the Federal Way High School remodel and the fines associated with discharges in excess of the NPDES Construction Stormwater limits. Design an appropriate interim stormwater treatment system to address this issue. 3. Page 13 of 31 identifies the water quality treatment as a sand filter and water detention facility. Unless the SEPA is amended both the plan and the Technical Information Report (TIR) must be amended to this treatment system. TECHNICAL INFORMATION REPORT (TIR) 4. Use of underground detention facility outside of City Center requires approval from the Public Works Department. 5. Provide support documentation which demonstrates that the biofiltration swale and media filter drains proposed meet or exceed the enhanced basic water quality treatment. 6. Define the difference between a "Biofiltration Swale" and a "Media Filter Drain". 7. Page 7, Section 3, Task 2, Sensitive Areas — The design engineer should check with the City of Federal Way Planning Department for any sensitive areas identified within the City. 8. Page 8, Section 3, Task 2, Critical Areas — Again check with Planning Department for critical areas maps. 9. Page 8, Section 3, Task 2, Water Quality Issues — typically this refers to surface water quality issues not water distribution issues (Lakehaven). 10. Page 10 Table 1, Site Area Summary — Table should show pre -development, interim condition and post development. 11. Provide figure to help understand sub -basin areas. 12. Provide a full evaluation of all Low Impact Development BMP's and the rational for the selection of those provided on site. 13. Provide preliminary sizing calculations for the bioswale, the media filter drain, Baker Tank and the Stormtech Chambers. 14. Figure 5, any asphalt area which allows vehicle access cannot be considered NPGIS. 15. The information promised in Appendix A and B must be submitted at this time. Ia"►P-3 16. Explain the proposed solid waste, identify location on site plan. 17. No information has been provided which details how elementary students and construction activities will coexist on this site. 18. Each Civil Sheet shall have the following note in bold: NO TEMPORARY CERTIFICATE OF OCCUPANCY (TCO) OR CERTIFICATE OF OCCUPANCY (CO) SHALL BE ISSUED UNTIL ALL STORMWATER AND FRONTAGE IMPROVEMENTS ARE INSTALLED, INSPECTED AND APPROVED BT THE CITY OF FEDERAL WAY. Section 200 19. Provide catch basin numbers, flow direction, rim and invert elevations. 20. Proposed retention/detention gallery appears to have at least three separate inlets. The design must maximize the distance between inlets and outlets to provide flow through design. 21. Proposed Compost Amended Bioswale appears to show two inlets without an outlet. Section 400 22. Current design does not provide any justification for a curb return entrance for the buses. Either apply for an additional modification or revise to a standard commercial driveway approach. Section 500 23. No water quality treatment is currently being proposed along 61h Avenue S. 24. Proposed street sections along 6th Avenue S and S 314th St do not meet Standard Street Section "S". The street modification has not been reviewed and was not received until after the Use Process packet. Street improvement section must correspond to approved right-of-way modification. )t- 25. Street lights and street trees must be shown conceptually on Use Process plans. 26. Provide bus turn modeling for any proposed bus entrance. 27. Street overlay requirements will trigger ADA improvements. ADA, upgrade to ramps on each leg of an intersection will be required. Crosswalks must be provided on both sides of intersections. integruTSiUAE Mirror Lake Elementary School. Federal Way Public Schools Height Exemption Narrative 19.200.090 Height Exemption Narrative per FRWC 19.200.090 Special Regulation Notes 12 and 17 The new Mirror Lake Elementary School projects seeks exemptions for the building height under special regulation notes 12 and 17 of FRWC 19.200.090. The project complies with special regulations 12 and 17 as noted below: FRWC 19.200.090 special regulations note 12. This use must comply with the requirements of the State Department of Social and Health Services and/or the State Superintendent of Public Instruction. The new Mirror Lake Elementary School meets all the requirements of the Office of Superintendent of Public Instruction (OSPI) and the spectrum of activities involved in the planning, design, and construction of school facilities including all activities necessary to create a cost-effective school project. The project is in conformance with the requirements of the State Construction Assistance and Project Forms to receive state funds for school planning, design, and construction. Federal Way Public Schools has conducted a Study and Survey in conformance with OSPI requirements, developed Educational Specifications and District Standards that reflect the goals and objectives set forth in the Study and Survey document, continued Advanced Planning for anticipating future needs, and obtained financing through a capital improvements campaign. Federal Way Public Schools has facilitated a design process that incorporates all planning, specifications, studies, codes, and regulations required to design and construct a school that meets the high-performance standards of Washington State Sustainable Schools Protocols (WSSP). The project meets OSPI requirements to be eligible for state funding to create instructional space for unhoused students based upon current and projected enrollment of Federal Way Public Schools. The new Mirror Lake Elementary School meet the safety standards for public school facilities under RCW 28A.525.055. FRWC 19.200.090 special regulations note 17. Minor and supporting structures constructed as a functional requirement of schools may exceed the applicable height limitation; provided, that the director of community development services determines that such structures will not significantly impact adjacent properties. The requirements for school buildings per the Office of Superintendent of Public Instruction (OSPI) include designing to the criteria of Washington Sustainable Schools Protocol (WSSP) and creates a condition that exceeds the applicable height limitations listed in FRWC 19.200.090. Per Section S1.6 of WSSP, the guidelines require the design of a building footprint that does not exceed 60% of the total building square footage. This requirement of reducing the building footprint minimizes the area of the site permanently disturbed by the building. The new Mirror Lake Elementary School utilizes multi -story design to achieve this requirement and to help preserve existing open space. Combining the strategies of reducing building footprint and minimizing parking to code minimum decreases the negative effects of the built environment on the existing ecosystems and creates more open space for school and public activities. The classroom spaces of the school are stacked to create a more sustainable design, the height classrooms match the height required in the gymnasium spaced. The gymnasium is located more than 100 feet from an adjacent residential zone, meeting the height requirements of FRWC 19.200.090. Additionally, the building employs a dual outside air (DOAS) mechanical system, housed in the supporting structure of the mechanical attic located centrally above the classroom wings, to meet energy requirements for a more efficient mechanical system design to meet Washington State Energy Code (WSEC) section C406.1 and energy requirements of Washington Sustainable Schools Protocol. The project is seeking exception to the height limitations based upon the requirements of OSPI and WSSP listed above. 117 S. Main Street, Suite 100 • Seattle, WA 98104 • 206.628.3137 FAX 206.628.3138 A Professional Service Corporation with offices in Seattle and Spokane -� RESUBMITTED _1 FEB 12 200 CITY OF FEDERAL WAY T TEN W COMMUNITY DEVELOPMENTTransportation Engineering NorthWest February 5, 2019 City of Federal Way Attn: Mike Benzien Subject: Explanation of Differences in SEPA and MUP TIA's Dear Mike: It has been brought to our attention there are slight discrepancies in reported delay at study intersections between our Traffic Impact Studies for several elementary schools currently under review by the City of Federal Way, and the SEPA checklist information published by the School District. These slight discrepancies in reported intersection or approach delay generally are less than 1 .0 second per vehicle and have no bearing or change in conclusion used in the SEPA determination or traffic analysis, but reflect a conversion in application of our traffic analysis software in our preliminary traffic analysis performed in October 2018 (use of Synchro version 6) versus the submitted Traffic Impact Analysis reports in November 2018 in final form that applied Synchro version 8. Please feel free to call me with any questions at (206) 361-7333 ext. 101. Sincerely, Transportation En ineering NorlhWest /;1 �/� Michael j. Read, P. Principal Transportation Planning j Design j Traffic Impact & Operations PO Box 65254, Seattle, WA 98155 1 Office (206) 361-7333 Attachment A LOS/Queuing Analysis of Axis Apartments Driveway onto SR 99 January 23, 2012 STATE OF WASHINGTON, COUNTY OF KING } AFFIDAVIT OF PUBLICATION PUBLIC NOTICE Ken Spurrell, being first duly sworn on oath that he is the Legal Advertising Representative of the Federal Way Mirror a weekly newspaper, which newspaper is a legal newspaper of general circulation and is now and has been for more than six months prior to the date of publication hereinafter referred to, published in the English language continuously as a weekly newspaper in King County, Washington. The Federal Way Mirror has been approved as a Legal Newspaper by order of the Superior Court of the State of Washington for King County. The notice in the exact form annexed was published in regular issues of the Federal Way Mirror (and not in supplement form) which was regularly distributed to its subscribers during the below stated period. The annexed notice, (Ad #844912) a: Public Notice Published 1 time(s) beginning on 02/15/2019 and ending on 02/15/2019. The full amount of the fee charged for said foregoing publication is the sum of $120.14. Ken Spurrell Legal Advertising Representative, Federal Way Mirror Subscribed and sworn to me this 15th ME* 04� Allen F. Nemec, N6tary Public ►1 La Residing in Tacoma, Washington City of Federal Way FWM844912 0 o U m�� m Lto a E �a� c,mo Q L OLY tD N .�O Yq TN I.L rorr h Nam`~ p.O N �. H —. ; 'v O N EP n d�p,m -opr �' a,orn� �w =� Extr.u+nti�CC IL N O S E O .2 CD p O O E O— m U O� d co Or mn O NNN Cd �m m QCTi R[A •-- �3 4 F O O O .L Q .x L' 7 '` CO Y O— C5 y E a U 0 0 rn o co T n w c� c o` g o a' s n > c> �yo om t�0,-n'Z` Q' �, ��t�Z om ma aQiW mom cm°'aoo R �= aEi n`cE-o �¢ M G,m �'acim � dLLai o21m Q-ti m'd°U.� aa>�>.`�+ •� ow =0OG o 1r.J0 OwC pm LFC-•wEd�m�ca�m Fc"._mm =m amSNv�Ww"w0 en� EU ^[wom.Vz,2a_Hu� � N = m VgOLYUJ i- E�mroLoYmui m . WMO hL O Y 0� U C— d _ fl.o.. m R 0 N C U 0 w = C e' cc V °b y 0' a m —J NNo�p a �g`�2�ca MQo!c m` ea�� c o�-mgw a. ' ap o m o_ m C env p m` v o .m-. `m' w R m o i ?. U `o ai •� o--6m Rn—u�CC�s«.�mnsN o AEU E—m pE yam m`"mr em.,m e-a se c.� oea� m�ciw cm wa `°E�i"E� m oi .. a� J� p I Q w> y r 7 u� co M L E �' a> .� .� L .— C") Z m C C C 7 O y` .y.. C 41 [] N O G C U uGw�,.�immm ro°m-'��'��om-�" d+-rw-��o moym- _ a� m _ ca .. m m fl Z o �`a ��vt cai�`C-4 %� �� oo �ac+'s aoa—=��_� E"u'ny xQ o.�c co amo.coa4ciaa mo scam CQmmmz= o d -0 d m m, U G C O CL O C O Z W i CL tVn G.. r cC w L=u i. c6 --1 1? Ot • cO LL E ++ O_ � O P7 d $$/k § & \x/ /0a p S71 _®— mi■ 2E m \=\k ZL ems/ f kG 2##° G)7 �^ W 2p[& ��fm . f232 2/Q? Ln 72/ /f //§j2ro§ƒ§ COMMUNITY DEVELOPMENT DEPARTMENT _ 33325 81h Avenue South CITY OF Federal Way, WA 98003-6325 �� �s +. `y ;. 253-835-2607; Fax 253-ay.c 09 t1latttt ii� z�[r�c it►^n l'fi c€era Iway.► am a I t►►�n��v.citvuifeclnral►vav-us.3i Project Name: Project File No: Project Address. NOTICE OF APPLICATION SIGN INSTALLATION CERTIFICATE i Installed By: ,� e �� 5L, Date of Installation: Location of Installation: f�-� �`' 4� *Please forward pictures of the posted sign to the project's planner.* !-i.:lrk:t�ll�KApIi�PAwGd��9�ki�rd�@1��1pE4J4.d�6lwF.9rfiw�idw��wE���Dw���hipk�wG9^�i�Y��A1�Bi�:d�6dwl3wi w w. .. m. w. ► •n: .s,r n• r-w•e.r •w. „ w : e I hereby testify that the sign installed fully complies with the installation standards outlined in Federal Way Revised Code (FWRQ Title 19 `Zoning and Development Code' and that the sign will be maintained until a Final decision is issued on the land use action and/or environmental threshold determination. I understand that failure to return this certificate within five days of posting may result in delays, notice of corrections, and re -mailings at the applicant's expense. Installer's Name Istft crrs Signature ,2-1/57 Date zG 3- (1q�; - 5 0 Phone Bulletin #036 —March 7, 2018 Page 1 of 1 k:\Handouts\Sign Installation Certificate IPA Mirror Lake Elementary Song Projea THEIR ;F;VZTUJRZiE 00, CA 1 _,WIMP IN DEPARTMENT OF COMMUNITY DEVELOPMENT SERVICES A�k 33325 8th Avenue South PO Box 9718 CITY OF Federal Way WA 98063-9718 FederalWay253-835-7000; Fax 253-835-2609 www. ci tvaf f ed e_r_a lam. c orn DECLARATION OF DISTRIBUTION hereby declare, under penalty of perjury of the laws of the State of VVashington, that a: X Notice of Land Use Application/Action ❑ Notice of Determination of Significance (DS) and Scoping Notice ❑ Notice of Environmental Determination of Nonsignificance (SEPA, DNS) ❑ Notice of Mitigated Environmental Determination of Nonsignificance (SEPA, MDNS) ❑ Notice of Land Use Application & Optional DNS/MDNS ❑ FWRC Interpretation ❑ Other ❑ Land Use Decision Letter ❑ Notice of Public Hearing before the Hearing Examiner ❑ Notice of Planning Commission Public Hearing ❑ Notice of LUTC/CC Public Hearing ❑ Notice of Application for Shoreline Management Permit ❑ Shoreline Management Permit ❑ Adoption of Existing Environmental Document was ❑ mailed �❑ faxed ❑ e-mailed and/or posted to or at each of the attached addresses on f4MMI U' 1.2019. Project Name File •- Signature Date K:\PLANNING INTERN\Declaration of Distribution notices\2011\11-102869-00-UP Declaration of Distribution with Posting Sites.doc Posting Sites: Federal Way City Hall - 33325 8th Avenue Federal Way Regional Library - 34200 1 st Way South Federal Way 320th Branch Library - 848 South 320th Street K:\PLANNING INTERN\Declaration of Distribution notices\201 1\1 1-102869-00-UP Declaration of Distribution with Posting Sites.doc f 41k CITY Federalo. Way DEPARTMENT OF COMMUNITY DEVELOPMENT 33325 8t" Avenue South Federal Way WA 98003 253-835-7000; Fax 253-835-2609 www.cityoffederolwiov.com DECLARATION OF DISTRIBUTION I, E. Tina Piety hereby declare, under penalty of perjury of the laws of the State of Washington, that a: 0 Notice of Land Use Application/Action ❑ Notice of Determination of Significance (DS) and Scoping Notice ❑ Notice of Environmental Determination of Nonsignificance (SEPA, DNS) ❑ Mitigated Environmental Determination of Nonsignificance (SEPA, MDNS) ❑ Notice of Land Use Application & Optional DNS/MDNS ❑ FWRC Interpretation ❑ Other ❑ Land Use Decision Letter ❑ Notice of Public Hearing before the Hearing Examiner ❑ Notice of Planning Commission Public Hearing ❑ Notice of LUTC/CC Public Hearing ❑ Notice of Application for Shoreline Management Permit ❑ Shoreline Management Permit ❑ Adoption of Existing Environmental Document Was ❑x emailed ❑ mailed ❑ faxed and/or ❑ posted to or at each of the attached addresses on February 13 2019. Project Name Mirror Lake Elementary School Re File Number(s) 19-100188-UP Signature Date February 14, 2019 C:\Users\tinop\Desktop\Declaration of Distdioution.doc/Last panted 2/14/2019 4:42:00 PM Tina Piety From: Ken Spurrell <legals@tacomadailyindex.com> Sent: Wednesday, February 13, 2019 10:30 AM To: Tina Piety Subject: Re: Legal Notices Confirming receiving 3 notices to pub in the FWM on Feb 15th. thanks Ken Ken Spurrell Publisher Direct: 253-232-5219 Internal: 15001 Fax: 253-627-2253 15 Oregon Ave, Suite 101, Tacoma, WA 98409 M- Sound Publishing Mav Print Rates Online Rates Media kit Sound Info On Wed, Feb 13, 2019 at 10:19 AM Tina Piety <Tina.Pie cit off'ederalwa .comma wrote: Hello, Please publish the attached legal notices (Lake Grove Elementary NOA, 19-100178-UP; Mirror Lake Elementary NOA,19-100188-UP; and Wildwood Elementary NOA, 19-100173-UP ) in the Federal Way Mirror's Friday (2/15/2019) issue. Please furnish affidavits of publication. This is for the Community Development account 83722477. Thank you, Tina E. Tina Piety, CAP -OM Administrative Assistant 11 Federal Wad Community Development Department 33325 81h Avenue South Federal Way, WA 98003-6325 Phone:253/835-2601 Fax: 253/835-2609 ww%v.c4Yoffedera hva, Ai�� CrrY OF ' -•- FederalWay NOTICE OF MASTER LAND USE APPLICATION Project Name: Mirror Lake Elementary School Rebuild Project Description: The proposal is replace the existing Mirror Lake Elementary School with a two- story elementary school building with parking and a play field. Associated site improvements are included. The existing school will be demolished after the new school has been constructed. Applicant: Ray Vefik, CBRE/Heery, 1420 Fifth Avenue, Suite 1700, Seattle, WA 98101, 206-835-0473 Project Location: 625 South 314"' Street / Parcel 082104-9035 Application Received: January 10, 2019 Determined Complete: February 6, 2019 Notice of Application: February 15, 2019 Environmental Review: The environmental review required under State Environmental Policy Act (SEPA) has been conducted by Federal Way Public School as lead agency. A MDNS was issued on January 10, 2019. Permits Under Review: Use Process III (File #19-100188-UP), Concurrency (File #19-100189-CN), and Street Modification Request (File 419-100560-SM) Environmental Documents & Required Studies: Updated Surface Exploration, Geologic Hazard, and Geotechnical Engineering Report, prepared by Associated Earth Sciences, Inc., August 17, 2018, and Technical Information Report, prepared by LPD Engineering, PLLC, Draft January 7, 2019. Development Regulations Used for Project Mitigation: Federal Way Revised Code (FWRC) Title 16 "Surface Water Management," and Title 19, "Zoning and Development Code." Public Comment & Appeals: Any person may submit written comments on the land use application to the Director of Community Development by 5:00 p.m. on March 4, 2019. Only persons who submit written comments to the Director (address below), or specifically requests a copy of the decision, may appeal the decision. Availability of File: The official project file, existing environmental documents, and required studies are available for public review at the Department of Community Development's Permit Center, 33325 8"' Avenue South, Federal Way, WA 98003. Staff Contact: Senior Planner Becky Chapin, 253-835-2641, Becky.chapin@cityoffederalway.com Published in the Federal Way Mirror February 15, 2019 41k FederalOF Way DEPARTMENT OF COMMUNITY DEVELOPMENT 33325 8t" Avenue South Federal Way WA 98003 253-835-7000; Fax 253-835-2609 www.citvofederalway.corn DECLARATION OF DISTRIBUTION I, Maria Smith hereby declare, under penalty of perjury of the laws of the State of Washington, that a: I] Notice of Land Use Application/Action ❑ Notice of Determination of Significance (DS) and Scoping Notice ❑ Notice of Environmental Determination of Nonsignificance (SEPA, DNS) ❑ Mitigated Environmental Determination of Nonsignificance (SEPA, MDNS) ❑ Notice of Land Use Application & Optional DNS/MDNS ❑ FWRC Interpretation ❑ Other ❑ Land Use Decision Letter ❑ Notice of Public Hearing before the Hearing Examiner ❑ Notice of Planning Commission Public Hearing ❑ Notice of LUTC/CC Public Hearing ❑ Notice of Application for Shoreline Management Permit ❑ Shoreline Management Permit ❑ Adoption of Existing Environmental Document Was ❑ emailed I] mailed ❑ faxed and/or ❑ posted to or at each of the attached addresses on February 15 2019. Project Name Mirror Lake Elementary School Rebuild File Number(s) 19-100188-UP Signature Date February 15.2019 �7K C:\Users\tinap\Desktop\Declaration of Distribufion.doc/Last printed 2/14/2019 4:44:00 PM A�k CITY OF Federal Way NOTICE OF MASTER LAND USE APPLICATION Project Name: Mirror Lake Elementary School Rebuild Project Description: The proposal is replace the existing Mirror Lake Elementary School with a two- story elementary school building with parking and a play field. Associated site improvements are included. The existing school will be demolished after the new school has been constructed. Applicant: Ray Vefik, CBRE/Heery, 1420 Fifth Avenue, Suite 1700, Seattle, WA 98101, 206-835-0473 Project Location: 625 South 314"' Street / Parcel 082104-9035 Application Received: January 10, 2019 Determined Complete: February 6, 2019 Notice of Application: February 15, 2019 Environmental Review: The environmental review required under State Environmental Policy Act (SEPA) has been conducted by Federal Way Public School as lead agency. A MDNS was issued on January 10, 2019. • 4 Mirror Lake Eiem2nlory I ;i i Permits Under Review: Use Process III (File #19-100188-UP), Concurrency (File #19-100189-CN), and Street Modification Request (File #19-100560-SM) Environmental Documents & Required Studies: Updated Surface Exploration, Geologic Hazard, and Geotechnical Engineering Report, prepared by Associated Earth Sciences, Inc., August 17, 2018, and Technical Information Report, prepared by LPD Engineering, PLLC, Draft January 7, 2019. Development Regulations Used for Project Mitigation: Federal Way Revised Code (FWRC) Title 16 "Surface Water Management," and Title 19, "Zoning and Development Code." Public Comment & Appeals: Any person may submit written comments on the land use application to the Director of Community Development by 5:00 p.m. on March 4, 2019. Only persons who submit written comments to the Director (address below), or specifically requests a copy of the decision, may appeal the decision. Availability of File: The official project file, existing environmental documents, and required studies are available for public review at the Department of Community Development's Permit Center, 33325 8"' Avenue South, Federal Way, WA 98003. Staff Contact: Senior Planner Becky Chapin, 253-835-2641, becky.chapin@cityoffederalway.com Published in the Federal Way Mirror February 15, 2019 ` V0 09 L8/09 L9@ IGany oane algjudwoo ww L9 x ww 93 lewaol op allanbll� ����{�� L8/09 L5@ [Land 4l!m alglledwoo „9/9 z x,, L azls lagqL� V Katherine Peppmiller St Lukes Lutheran Church Nancy Chaffee 303 Warwick St 515 S 312th St 20214 La Paloma Dr E Enumclaw, WA 98022 Federal Way, WA 98003 Bonney Lake, WA 98391 St Luke's Lutheran Church West Campus Congregation Jenison Cottriel 515 S 312th St PO Box 24312 712 S 314th St Federal Way, WA 98003 Federal Way, WA 98093 Federal Way, WA 98003 2017-2 Ih Borrower Lp Colleen Shoda Robert Miyahara 1717 Main St Ste 2000 717 S 313th St 713 So 313th St Dallas, TX 75201 Federal Way, WA 98003 Federal Way, WA 98003 Richard Murchison Gi Kim Paul Paulino 709 S 313th St 703 S 313th St 704 S 314th St Federal Way, WA 98003 Federal Way, WA 98003 Federal Way, WA 98003 Federal Way City Of Josie Brown Katharine McCracken 33325 8th Ave S 31626 7th PI S 31620 7th PI S Federal Way, WA 98003 Federal Way, WA 98003 Federal Way, WA 98003 Jose Andaluz Marion Harmon Juan Rodriguez 31614 7th PI S 31610 7th PI S 31611 7th PI S Federal Way, WA 98003 Federal Way, WA 98003 Federal Way, WA 98003 Yuriy Chumachek Breana Nielsen Ben Wehmeyer 31615 7th PI S 31621 7th PI S $1627 7th PI S Federal Way, WA 98003 Federal Way, WA 98003 Federal Way, WA 98003 Marcus Hector Sylvia Trout Michelle Luu 31608 7th Ave S 31604 7th Ave S 31600 7th Ave S Federal Way, WA 98003 Federal Way, WA 98003 Federal Way, WA 98003 Ninalynn McGruder John Pennington Angelo Boeri 620 S 316th PI 22700 Wilderness Wy PO Box 882991 Federal Way, WA 98003 Boca Raton, FL 33428 Steamboat Spring, CO 80488 Gilberto Gonzalez Deeandra Cabrera Agustus Tertzakian 613 S 316th PI 620 S 317th St 31614 6th Ave S Federal Way, WA 98003 Federal Way, WA 98003 Federal Way, WA 98003 °_ ������ label size 1 " x 2 5/8" compatible with Avery 05160/8160 etiquette do format 25 mm x 67 mm compatible avec Avery 05160/8160 04A VV0 09 L8/09 L5® tiany oane algitedwoo ww L9 x ww gZ 1ewjo1 op a}}anblt� ] ����� ^9 L8/09 L9® tiany q;Inn algl;edwoo „9/9 Z x,, L azls laq? Edna Balde-Tan James Sabol William Postlewait 454 S 316th PI 448 S 316th PI 29474 E 157th St So Federal Way, WA 98003 Federal Way, WA 98003 Coweta, OK 74429 Y Joung Bernice Jefferson Felix Reyes 434 S 316th PI 441 316th PI S 449 S 316th PI Federal Way, WA 98003 Federal Way, WA 98003 Federal Way, WA 98003 Kerry Callison Craig Patrick Eddie Siow 455 S 316th PI 601 S 316th PI 3143 S 273rd St Federal Way, WA 98003 Federal Way, WA 98003 Auburn, WA 98001 Joseph Meyer Jr David Harris Mark Swezea 610 S 317th St 6Q0 $ 317th St P O Box 367 Federal Way, WA 98003 Federal Way, WA 98Q03 Maple Valley, WA 98038 William Smith Joselito Redila G Wallace 31233 8th Ave S 31241 8th Ave S 31249 8th Ave S Federal Way, WA 98002 Federal Way, WA 98003 Federal Way Wa, SH 98002 Carolelaine Hughes Hamendra Prasad Andrew MacFarlane 31255 8th Ave S 31407 8th Ave S 31415 8th Ave S Federal Way, WA 98003 Federal Way, WA 98003 Federal Way, WA 98003 Paul Wezeman Kristine RQlstad Anuj Prasad 122 329th PI #31 a 2807 East 152nd St 31439 8th Av S Federal Way, WA 98003 Tacoma, WA 98445 Federal Way, WA 98003 Jon Benfer Benny Flores loana Perde P 0 Box 98095 31513 8th Ave S 31521 8th Av S Seattle, WA 98198 Federal Way, WA 98003 Federal Way, WA 98003 Teresa Fowler Antonio Del Rosario loana Perde 31529 8th Av S 31605 8th Ave S 31613 8th Ave S Federal Way, WA 98003 Federal Way, WA 98003 Federal Way, WA 98003 Lavina McClam Barbara Petzoldt Dina Grib 31250 8th Ave S 31256 8th Ave S 35927 30th Ave S Federal Way, WA 98003 Federal Way, WA 98003 Federal Way, WA 98003 �' label size 1 " x 2 5/8" compatible with Avery @5160/8160 STAPLES` ttiquette do format 25 mm x 67 mm compatible avec Avery 05160/8160 0915/091g@ lUanV oane aigijedwoo ww L9 x ww gZ jewiol op at}anbil� ����� ?9 L9/09 Lg@ fjanV ql!m aigitedwoa ,,9/9 Z x „ L azis iagp , Brooklyn Lindsey David Saffold Phillip Duffek 31416 8th Ave S 31424 8th Ave S 31432 8th Ave S Federal Way, WA 98003 Federal Way, WA 98003 Federal Way, WA 98003 Tom Lubic Aaron Rolinski Delbert Hoover 31440 8th Av S 31508 8th Av S 31514 8th Ave S Federal Way, WA 98003 Federal Way, WA 98003 Federal Way, WA 98003 Soon Cha Jackie Troedel Mary Rhymes 31522 8th Av S 807 S 316th St 31256 6th Ave S Federal Way, WA 98003 Federal Way, WA 98003 Federal Way, WA 98003 James Rivinius Barbara Lee Jacqueline Rizik 29721 4th Ave SW 213 McElroy PI 31234 6th Ave S Federal Way, WA 98023 Puyallup, WA 98371 Federal Way, WA 98003 Ben Morgan Beverly Arnhold Kurt Sykes 31233 7th Ave S 31241 7th Ave S 31249 7th Ave S Federal Way, WA 98003 Federal Way, WA 98003 Federal Way, WA 98003 Doris Terrell 812 33rd Ave S Seattle, WA 98144 STAPLESetiquette do format 25 mm/x'67 mpm coimpat b e a eAvery /051160/8160 04A CITY OF ti. Federal Way Centered on Opportunity February 7, 2019 Mr. Ray Vefik CBRE/Heery 1420 Fifth Avenue, Suite 1700 Seattle, WA 98101 ivefik a,hvps.org CITY HALL 33325 8th Avenue South Federal Way, WA 98003-6325 (253) 835-7000 www.cityoffederalway.com Jim Ferrell, Mayor FILE Re: File #19-100188-00-UP; COMPLETENESS LETTER Mirror Lake Elementary School, 625 South 314th Street, Federal Way Dear Mr. Vefik: The Community Development Department is in receipt of your January 10, 2019, Process III Master Land Use (MLU) application. The proposal includes constructing a new two-story elementary school with associated site: improvements, The existing elementary school is to be demolished after construction of the new school. Pursuant to Federal Way Revised Code (FWRC) 19.15.045, within 28 days of receiving an application, the city shall determine whether all information and documentation required for a complete application has been submitted. NOTICE OF COMPLETE APPLICATION Please consider this correspondence a formal Letter of Complete Application. Pursuant to FWRC 19.15.045, the application is deemed complete as of February 6, 2018. This determination of completeness is based on a review of your submittal -relative to applicable requirements referenced within FWRC 19.15.040. The subznitt'al requirements are not intended to determine if an application conforms to city codes; they are used only to determine if all required materials have been submitted. A 120-day time line for reviewing the Process III application has started as of this date. The city's development regulations allow the department 120 days from the date that an application is deemed complete to take action on the application. I-Iowever, the 120-day time line will be stopped any time the city requests corrections and/or additional information. You will be informed of the status of the 120-day time line when you are notified in writing that corrections and/or additional information are needed. NOTICE OF APPLICATION Formal processing and review of your applications will now begin. A Notice of Application (NOA) will be posted on the city's official notice boards, published in the .Federal Way Mirror, and mailed to the persons within 30.0 feet of each boundary of the subject property within 14 days of this letter, pursuant to FWRC 19.65.070(2). The city will prepare three Public Notice Boards that the applicant will be responsible for posting on site by February 15, 2019. Further posting instructions and the notice boards will be available for pick-up at Will Call at the 2Rd floor of City Hall on February 11, 2019. Mx. Ray Vefik Page 2 February 7, 2019 CLOSING The Development Review Committee (DRC) staff is preparing initial technical review comments that will be forwarded to you in a separate correspondence at a later date. Technical review comments may result in a request for additional information and revisions in order to comply with applicable code requirements. If you have any questions regarding this letter or your development project, please contact me at 253-835-2641, or becky.chapin@cityoffederalway.com. ' Sincerely, fk*� Becky Cha ! Senior Planner enc: Notice of Application C Brian Davis, Community Development Director Greg Kirk, Plans Examiner Cole Elliott, Development Services Manager Sarady Lung, Senior Transportation Planning Engineer Brian Asbury, Lakehaven Water & Sewer District Chris Cahan, South King Fire & Rescue Mike Benzien, Federal Way Public Schools, mbenzien@R ls.n 19-100188-00-UP Doc. I.D. 78657 Aok, CITY OF Federal Way NOTICE OF MASTER LAND USE APPLICATION Project Name: Mirror Lake Elementary School Rebuild Project Description: The proposal is replace the existing Mirror Lake Elementary School with a two- story elementary school building with parking and a play field. Associated site improvements are included. The existing school will be demolished after the new school has been constructed. Applicant: Ray Vefik, CBRE/Heery, 1420 Fifth Avenue, Suite 1700, Seattle, WA 98101, 206-835-0473 Project Location: 625 South 314th Street / Parcel 082104-9035 Application Received: January 10, 2019 Determined Complete: February 6, 2019 Notice of Application: February 15, 2019 Environmental Review: The environmental review required under State Environmental Policy Act (SEPA) has been conducted by Federal Way Public School as lead agency. A MDNS was issued on January 10, 2019. _ 1 Moog Lake Eiemenlary ! Permits Under Review: Use Process III (File #19-100188-UP), Concurrency (File #19-100189-CN), and Street Modification Request (File #19-100560-SM) Environmental Documents & Required Studies: Updated Surface Exploration, Geologic Hazard, and Geotechnical Engineering Report, prepared by Associated Earth Sciences, Inc., August 17, 2018, and Technical Information Report, prepared by LPD Engineering, PLLC, Draft January 7, 2019. Development Regulations Used for Project Mitigation: Federal Way Revised Code (FWRC) Title 16 "Surface Water Management," and Title 19, "Zoning and Development Code." Public Comment & Appeals: Any person may submit written comments on the land use application to the Director of Community Development by 5:00 p.m. on March 4, 2019. Only persons who submit written comments to the Director (address below), or specifically requests a copy of the decision, may appeal the decision. Availability of File: The official project file, existing environmental documents, and required studies are available for public review at the Department of Community Development's Permit Center, 33325 8th Avenue South, Federal Way, WA 98003. Staff Contact: Senior Planner Becky Chapin, 253-835-2641, becky.chapin@cityoffederalway.com Published in the Federal Way Mirror February 15, 2019 DATE: CITY OF FEDERAL WAY COMMUNITY DEVELOPMENT DEPARTMENT DEVELOPMENT REVIEW COMMITTEE TRANSMITTAL January 14, 2019 TO: Cole Elliott, Development Services Manager Greg Kirk, Plans Examiner Rick Perez, City Traffic Engineer Brian Asbury, Lakehaven Water & Sewer District Chris Cahan, South King Fire & Rescue Lindsey Sperry, Public Safety Officer FROM: Becky Chapin, Senior Planner FOR DRC MTG. ON: January 31, 2019 — Internal Completeness Review FILE NUMBER(s): 19-100188-00-UP RELATED FILE NOS.: 18-103302-00-PC PROJECT NAME: Mirror Lake Elementary School PROJECT ADDRESS: 625 South 314`" Street ZONING DISTRICT: RS 7.2 PROJECT DESCRIPTION: Demolition of existing school and construction of anew 62,000 square foot school building. Existing school to remain during construction. LAND USE PERMITS: Use Process III (School District Lead Agency on SEPA) PROJECT CONTACT: Ray Vefik CBRE 1420 Fifth Avenue, Suite 1700 Seattle, WA 98101 rvefik@fwps.org MATERIALS SUBMITTED: Master Land Use Application Critical Areas Map (4) Narrative Summary of Design Guidelines CPTED Checklist (4) Title Report (2) Geotech Report (4) Lakehaven Developer Extension Agreement (2) Draft TIR (4) Site Photos (8) SEPA Checklist (8) SEPA MDNS Notice (8) MDNS (8) Response to Traffic SEPA Checklist Comments (4) R ENED i nth rus JAN 10 2019 ARCIO I C r U R i CITY CFFE'1)Er., AWAY COMMUNITY DEVELOPMENT Mirror Lake Elementary School Federal Way Public Schools Community Design Guidelines Narrative Narrative Summary of applicable Design Guidelines (FWRC 19.115) The new Mirror Lake Elementary School utilizes several design strategies to address the intent of the community design guidelines and create a building that incorporates a combination of facade treatments and material modulation to organize and articulate building bulk and scale, add architectural interest, and appeal at a pedestrian scale from adjacent neighbors and streets. The building creates the perception of depth and develops a system of material and color modulation to respond to the site and promote the goals of Federal Way Public Schools to create a safe, secure, and supervisable school campus by using the building as a buffer to adjacent street traffic on 61h Ave and creating a welcoming and attractive entrance to the site from 314m Street. (19.115.050) Site design strategies achieve the general criteria established by incorporating pedestrian areas that create a safe and easily supervised entry plaza with fixed seating, clear line of site from ground level windows, and play areas that are clearly defined and secured with perimeter fencing. The organization of the building on the site directs activities to identified areas and creates clear site lines around the perimeter to discourage crime and unsafe activities. Landscaping and site elements have been designed to be well defined and easily maintained to create a project that will be well cared for by Federal Way Public Schools maintenance staff and be inviting to the community it serves. Surface parking meets the requirements of 19.125 by utilizing type IV landscaping and meet the requirements of 19.125.070 for interior lot landscaping, landscape islands, permanent curbing, screening, vehicle overhangs, and irrigation; submitted landscape and civil drawings show exact locations and dimensions. Parking and drop-off areas have looped access and driveways have been located to be clearly visible from 3141h Street while maintaining a secure and safe route to school for pedestrians. The primary entrance to the school is oriented to 3141h Street. The site has two entrances of off 314th Street, one for parent drop-off and one for bus -drop off. Both drop-offs unload onto a pedestrian plaza outside the main entrance and is easily supervised from the administration offices at the front of the building. Large windows at the ground level and second level also enhance supervision and safety at the entry. Landscaping is used between the building and the pedestrian plaza and sidewalks to soften the building and create an attractive and inviting arrival experience to the school. Sidewalks are used to connect the pedestrians arriving from the adjacent neighborhoods and connect all areas of the site. Bicycle racks are located near the building entry for easy accessibility and supervision. The service yard is located to the east of the building and houses trash, recycling, transformer, and generator. The Service yard is accessed via the east parking lot and meets the requirements of 19.125.150 and 19.125.040 by providing a screened enclosure and landscape screening along with roof protection above the trash and recycling area. Site lighting is provided at parking and drop-off areas. Site lighting does note spill onto adjacent properties; a site lighting plan has been submitted to show proposed locations and meet the requirements of 19.105.030. (19.115.060) The new Mirror Lake Elementary School utilizes existing grades and minimizes impacts to the existing topography. The finish floor elevation matches the finish floor elevation of the existing school. The building incorporates type III landscaping buffer around the site and type IV around the building. The main fagade off of 314th Street incorporates a canopy at the main entrance from the pedestrian plaza at the drop-off areas. The building uses material transitions, window shadow box articulation, and texture to breakdown the building massing and scale. The west fagade along 6th Avenue uses the strategy of creating the classical architectural order of developing a base, middle, and top using material variation, texture and color. The base is a concrete masonry veneer that grounds the building to the site. The masonry base is very durable and creates a sense of permanence that is appropriate for a school building. The middle uses color and texture variation of durable cement board panels and planks to create the perception of depth and material modulation to the fagade while creating a highly supervisable building perimeter to ensure student safety before, during, and after school. The supervision of this area of the site and building is a key element in determining overall building organization and site strategies to reinforce safety concerns along the west 117 S. Main Street, Suite 100 • Seattle, WA 98104 • 206.628.3137 FAX 206.628.3138 A Professional Service Corporation with offices in Seattle and Spokane i Itegrus r0BE Statement of Architectural Design Intent Mirror Lake Elementary School Page 2 facade. The facade is articulated by color accents to breakdown the building scale and uses metal trim transitions at material changes and around large window openings to provide the Office of Superintendent of Public Instruction required daylighting into the classrooms. The large windows create a rhythm that relates to the material transitions and strengthens the facade modulation concepts around the building. The windows are organized within the facade by the material modulation and articulated by a metal shadow box and metal trim. The top of the building uses the articulation of stepped parapet heights and copings to reinforce the rhythm of the material transitions, window arrangement, and color modulation. The north facade along 3141h Street continues the strategy of creating a base, middle, and top by utilizing the masonry base and color and texture variation of the cement board panels and planks. The articulation of materials, colors, large storefront windows, an entry canopy, landscape screening, building recesses, and a large pedestrian plaza creates a clear and distinguished main entry and arrival point for students, parents, teachers, and community members when entering the site from either the parent drop-off entry or the bus drop-off entry. (19.115.070) The building is oriented towards 314th Street and incorporates the use of a pedestrian plaza at the parent and bus drop-off areas. The plaza is directly adjacent to the main building entry is protected by a canopy at the entrance. Large ground level windows and directly adjacent administration offices allow for strong site lines and an easily supervised arrival of scholars and community members. Landscaping is utilized between the plaza and building to enhance the arrival experience and does not impede line of site supervision around the building. (19.115.090) Unobstructed supervision of the site and building is a key element in determining overall building organization and site strategies to reinforce safety concerns along the west and north facade. To create strong site lines and to discourage unsupervised areas where there is a greater risk of crime and undesirable activities the west and north facades do not structurally modulate. The building uses material transitions, color, and texture of masonry, durable cement board panels, and plank to create the perception of depth and material modulation to the facade while creating a highly supervisable building perimeter. The facade modulation is reinforced by utilizing accent trim around windows, trim at material transitions, and organizing scupper boxes and downspouts with regularity within the modulation of materials. The roof of the building uses the articulation of stepped parapet heights and copings to reinforce the rhythm of the material transitions, window arrangement, and color modulation. Alternative methods to organize the building and facade treatments under 19.115.090.5 incorporate a majority of architectural elements from 19.115.060.3.b, such as, pedestrian plaza, entry canopy, and building articulation of large windows, trim to create shadow lines and perceived depth, articulated parapet, and materials variations of masonry and cement board panels and planks. The site implements CPTED design principals to create natural surveillance and access control around the building and to all areas of the site. A completed CPTED checklist has been submitted for the project. The building form and site organization work together to create a project that creates strong site lines, a secure perimeter to keep students and teachers safe, and minimize opportunities for undesirable activity, while creating a building that incorporates a combination of facade treatments and material modulation to articulate massing and scale, add architectural interest, and appeal at a pedestrian scale from adjacent neighbors and streets. 117 S. Main Street, Suite 100 • Seattle, WA 98104 • 206.628.3137 FAX 206.628.3138 A Professional Service Corporation with offices in Seattle and Spokane nte g 10 0 urk r ,,,, Mirror Lake Elementary School Federal Way Public Schools Architectural Design Intent Statement of Architectural Design Intent Protect Description The purpose of the project is to replace the existing Mirror Lake Elementary School for Federal Way Public Schools as part of the bond measure passed by voters in November 2017. The guiding principles developed by the Facilities Planning Committee serve as benchmarks for these projects. The guiding principles are advance strategic goals, learner centered, equity of opportunity, personalized environments, sustainability, safety, community connections, aesthetics, and light size for growing communities. Mirror Lake Elementary School is located on an existing 8.33-acre site at 625 South 3141h Street in Federal Way, Washington. The entire site is relatively flat or gently sloping to the southwest. The existing school building is located on the eastern half of the site, oriented north — south. The site is served by South 3141h Street to the north and 61h Avenue South to the west; the site also has access to the east to 81h Avenue South. The school is surrounded by single family residential development, several churches, and a shelter located to the west of the site. Mirror Lake Park is located a block to the east. The school property is zoned residential single family (RS-7.2), with schools being a permitted use. The existing Mirror Lake Elementary School currently serves approximately 450 scholars from pre -kindergarten through 51h grade. The existing school was originally built in 1957 with various additions and modernizations over the years. The school was last remodeled in 1987. The existing facility is comprised of a single -story building with classrooms arranged along a double loaded corridor and several portable classroom buildings. The existing school will remain in operation during the construction of the new Mirror Lake Elementary School. The new school building will be built in the open space between the existing school and 61h Avenue. Site Omanization The automobile drive for parent and visitor traffic at Mirror Lake Elementary School is located off South 3141h Street at the north side of the site at a new curb cut aligned with 71h Avenue South. This drop-off loop is developed to accommodate a long on -site queuing area. The bus and service drive is off South 314th Street utilizing the existing curb cut. Parking is distributed between a northwest lot, serving visitors and community users, and a northeast lot which will be used primarily by staff. Building service access utilizes the same drive as buses but bypasses the bus loop itself. Fire lane access to the rear of the school uses the bus and service drive, as well as the existing connection to 8th Avenue South via South 315th Street. The fire lane runs along the south side of the building, doubling as hard surface play area; a firetruck hammerhead turnaround is incorporated into the hard surface play area south of the gym and multi -purpose spaces. A 1" shaped building design was developed to fit the new building on the site while holding it away from the existing school, which is to remain in operation during construction. The north -south leg of the 1" is oriented along the west property line to serve as a buffer and edge to 6th Ave South. The shape of the building works well to define and contain the south facing play area. Buildo Organization Working closely with the Federal Way Public Schools Design Review Committee, the orientation and organization of the building was developed as a response to desired program adjacencies and the goal of generating a building that can be used as a buffer between vehicular access to the site and the play areas. Another common priority among the Design Review Committee was the ability to zone the building between the more public community functions, like the gymnasium, multi -purpose and library, and more private academic functions. The Design Review Committee expressed a strong desire for shared learning areas outside of the classrooms to accommodate flexibility in teaching and learning methodologies. 117 S. Main Street, Suite 100 • Seattle, WA 98104 • 206.628.3137 FAX 206.628.3138 A Professional Service Corporation with offices in Seattle and Spokane integrulsrURE Statement of Architectural Design Intent Mirror Lake Elementary School Page 2 The basic organizational scheme of the building is a two-story " L". The two-story school maximizes site area and efficiency. At each school, the ground floor of one leg of the 1" contains the entry, administration, learning resource center (library), music classroom, multi -purpose, gymnasium and building services. The multi -purpose room, gymnasium, and music classroom, which also serves as a stage, are organized for after hour community use. Acoustical, operable walls separate the music classroom from the multi -purpose room and the multi -purpose room from the gymnasium to provide the opportunity to create a large group gathering and performance space. The kitchen and building services are located adjacent to the multi -purpose room and gymnasium. A covered outdoor play structure is attached to the gymnasium. The classrooms are arranged along a central corridor and organized around shared learning, or break out, spaces. Pre-school, kindergarten and first grade are located on the first floor, and grades second through fifth are located on the second floor. Pre-school is located near the main entry to minimize travel for the youngest scholars. Kindergarten through third grade have five classrooms each grouped around the shared learning areas, and fourth and fifth grade have four classrooms each grouped around shared learning areas. Pre-school and kindergarten classrooms have toilet rooms located within their spaces, and larger boys' and girls' toilet rooms are situated centrally between classroom groupings. At the intersection of the two legs of the I," the student services are centrally located and near the elevator making them convenient and close to most of the classrooms. The student service offices are grouped together to facilitate collaboration and support a "push -in" model of service. Three stairs are evenly distributed through the building to provide convenient locations for vertical circulation and to help alleviate congestion. With both the automobile and bus drop-offs occurring to the north of the building, the administration is centrally located for visibility and security. The main building entry faces north and is located between the administration and the multi -purpose room for convenient access to the cafeteria and gymnasium. An entry canopy directs building users to the front door, while providing cover. The main entry has a vestibule that can be secured to direct all visitors through a door into the reception area before access into the school is permitted. The learning resource center is prominently located on the first floor holding the corner of the I"; it faces the main automobile drop-off and 61h Avenue South. The learning resource center, multi -purpose room, and gymnasium are located near the front of the school and positioned to allow extended use of the facility after school hours while keeping the rest of the school closed off. A family connections center is located across the corridor from the main entry. The two-story classroom wing is oriented north to south acting as a buffer to 60, Avenue South. Exterior Develo ment The exterior building development reflects the buildings' internal organization and the buildings relationship to its site. The buildings material expression is comprised principally of concrete masonry veneer, cement board panel and plank siding, and window assemblies with an articulated parapet roof design and single ply membrane roofing at low slope roofs. The masonry veneer is used mainly at the first floor to provide a durable and low maintenance material where it is most needed and reflect solidity and permanence. The cement panel and plank siding is mainly located at the upper portion of the building to create contrast and provide weather protection while also being durable and low maintenance. A secondary accent cement panel siding is used to break up the scale and to create rhythm, texture, and unique identity to the school. Attic space for the mechanical systems is located on the roof and is fully enclosed. A canopy with a low slope membrane roof provides cover and expression at the main entry. The massing is based on considerations of the building height limits and the residential context of the neighborhoods where the school is located. The multi -purpose and gym spaces utilize clerestory windows to bring daylight into the large volumes. The covered play structure is attached to and integrated into the multi -purpose -gym volume. An enclosure screens the service yard, which is accessed by gates for both vehicles and persons. 117 S. Main Street, Suite 100 • Seattle, WA 98104 - 206.628.3137 FAX 206.628.3138 A Professional Service Corporation with offices in Seattle and Spokane J 41111k6� CITY Federala. Way DEPARTMENT OF COMMUNITY DEVELOPMENT `h 33325 8 PAvenue South y--t ti +--JFederal Way, WA 98003 253-835-2607;Fax 253-835-2609 J A N 10 ?M9 www.ci ffederalwa .co CITY CN FEP,EP,ti],V Y Co.',, UNITY DEviELUFI EI fT Crime Prevention Through Environmental Design (CPTED) Checklist Directions Please fill out the checklist to indicate which strategies have been used to implement CPTED principles in your proposed project. Please check all strategies that are applicable to your project for each of the numbered guidelines. You may check more than one strategy for each guideline. Your responses will be evaluated by city staff, and will be integrated into the site plan and/or building permit review process. Section and ✓ Functional Area Evaluation for Performance Performance Standard Agency Use Only Standard Strategy z Applicable during Site Plan Review 6 Applicable during Building Pennit Review Section 1.0 Natural Surveillance 1.1 Blind Corners _ Luor Avoid blind corners in pathways and parking lots. _ ❑Revise _ ❑NA Comments: Pathways should be direct. All barriers along pathways should be permeable (see through) including landscaping, fencing etc. ■ ❑ Consider the installation of mirrors to allow users to see ahead of them and around corners. e Other strategy used: 0 1.2 Site and Building Layout _ Luor Allow natural observation from the street to the use, from the _ []Reviseuse to the street, and between uses _ ❑NA Comments: Bulletin #022 — January 1, 2011 Page 1 of 9 k:\Handouts\CPTED Checklist Section and ✓ Functional Area Performance Performance Standard Standard Strategy ■ Applicable during Site Plan Review 6 Applicable during Building Permit Review Orient the main entrance towards the street or both streets on For Non -Single comers. ■ Family Development Position habitable rooms with windows at the front of the dwelling. ■ Access to dwellings or other uses above commercial/ retail development should not be from the rear of the building. ■ Offset windows, doorways and balconies to allow for natural observation while protecting privacy. ■ Locate main entrances/exits at the front of the site and in view of the street. 0If employee entrances must be separated from the main entrance, they should maximize opportunities for natural surveillance fBe rom the street. ■ In industrial developments, administration/offices should be located at the front of the building. ■ Avoid large expanses of parking. Where large expanses of I� parking are proposed, provide surveillance such as secu . ■ Access to elevators, stairwells and pedestrian pathways should be clearly visible from an adjacent parking area. ■ �� Avoid hidden recesses. ■ Locate parking areas in locations that can be observed by adjoining uses. ■ Open spaces shall be clearly designated and situated at ks, plazas, ont uses should face streets. ■ Other strategy used: PLAYGROUNDS LOCATED DIRECTLY 011TSIDE THE BACK OF THE BUILDINGS IN FULL VIEW AND COMPLETELY SECURED WITH CHAIN LINK FENCING. For Commercial/ Retail/ Industrial and Community Facilities For Surface Parking and Parking Structures Evaluation for Agency Use Only Bulletin #022 — January 1, 2011 Page 2 of 9 k:\Handouts\CPTED Checklist Section and ✓ Functional Area Evaluation for Performance Performance Standard Agency Use Only Standard Strategy ■ Applicable during Site Plan Review e Applicable during Building Permit Review 1.3 Common/Open Space Areas and Public On -Site Open _ ❑Confi Space _ ❑Revise Provide natural surveillance for common/open space areas. _ ❑NA Comments: Position active uses or habitable rooms with windows adjacent E3110 to main common/open space areas, e.g. playgrounds, swimming pools, etc., and public on -site open space. s Design and locate dumpster enclosures in a manner which L'[ screens refuse containers but avoids providing opportunities to hide. i Locate waiting areas and external entries to elevators/stairwells close to areas of active uses to make them visible from the building entry. e ETT"� Locate searing in areas of active uses. e Other strategy used: U 1.4 Entrances Provide entries that are clearly visible. Design entrances to allow users to see into them before entering. ■ v Entrances should be clearly identified (Signs must conform to Ll FWRC 19.140.060. Exempt Signs. (Applicable during Cerd Icale ofOccuponaInspecri_on]. _Revise ❑NA Comments: Other strategy used: create a secure entry vestibule with controlledconlrolled entry . and direct supervision t y administrative staff 1.5 Fencing _ ❑Confl Fence design should maximize natural surveillance from the 0—Revise street to the building and from the building to the street, and _ ❑NA minimize opportunities for intruders to hide. Comments: Bulletin #022 -January 1, 2011 Page 3 of 9 k:\Handouts\CPTED Checklist Section and ✓ Functional Area Evaluation for Performance Performance Standard Agency Use Only Standard Strategy ■ Applicable during Site Plan Review e Applicable during Building Permit Review ❑ Front fences should be predominantly open in design, e.g. pickets or wrought iron, or low in height. e Design high solid front fences in a manner that incorporates ❑ open elements to allow visibility above the height of five feet. e If noise insulation is required, install double -glazing at the ❑ front of the building rather than solid fences higher than five feet. e Other strategy used: NO FENCING ALONG STREETS AT THE FRONT OF THE BUILDINGS. CHAIN LINK USED 1.6 Landscaping _ LJCor Avoid landscaping which obstructs natural surveillance and ❑Revise allows intruders to hide. _ ❑NA Comments: Trees with dense low growth foliage should be spaced or their crown should be raised to avoid a continuous barrier. ■ Use low groundcover, shrubs a minimum of 24 inches in height, or high -canopied trees (clean trimmed to a height of eight feet) around children's play areas, parking areas, and along pedestrian pathways. r 81 Avoid vegetation that conceals the building entrance from the street. ■ Other strategy used: 1.7 Exterior Lighting ❑Col Provide exterior lighting that enhances natural surveillance. _ ❑Revise (Refer to FWRC 19.115.050(7)(a) for specific lighting _ ❑NA requirements.) Comments: Prepare a lighting plan in accordance with Illuminating Engineering Society of America (IESA) Standards, which (� addresses project lighting in a comprehensive manner. Select a lighting approach that is consistent with local conditions and crime problems. ■ Bulletin #022 — January 1, 2011 Page 4 of 9 k:\Ilandouts\CPTED Checklist Section and ✓ Functional Area Performance Performance Standard Standard Strategy ■ Applicable during Site Plan Review e Applicable during Building Permit Review Locate elevated light fixtures (poles, light standards, etc.) in a coordinated manner that provides the desired coverage. The useful ground coverage of an elevated light fixture is roughly twice its height. ■ For areas intended to be used at night, ensure that lighting ❑ supports visibility. Where lighting is placed at a lower height to support visibility for pedestrians, ensure that it is vandal - resistant. e ❑ Ensure inset or modulated spaces on a building facade, access/egress routes, and signage is well lit. e ❑ In areas used by pedestrians, ensure that lighting shines on pedestrian pathways and possible entrapment spaces. e Place lighting to take into account vegetation, in its current and ❑ mature form, as well as any other element that may have the potential for blocking light. e Avoid lighting of areas not intended for nighttime use to avoid ❑ giving a false impression of use or safety. If danger spots are usually vacant at night, avoid lighting them and close them off to pedestrians. e Select and light "safe routes" so that these become the focus of legitimate pedestrian activity after dark. a ❑ Avoid climbing opportunities by locating light standards and electrical equipment away from walls or low buildings. e ❑ Use photoelectric rather than time switches for exterior lighting. e In projects that will be used primarily by older people ❑ (retirement homes, congregate care facilities, senior and/ or community centers, etc.) provide higher levels of brightness in public/common areas. e Other strategy used: 0 Evaluation for Agency Use Only 1.8 Mix of Uses L Lor In mixed use buildings increase opportunities for natural ❑Revise surveillance, while protecting privacy. _ DNA Comments: Bulletin #022 — January 1, 2011 Page 5 of 9 k:\Handouts\CPTED Checklist Section and ✓ Functional Area Performance Performance Standard Standard Strategy i Applicable during Site Plan Review 8 Applicable during Building Permit Review Where allowed by city code, locate shops and businesses on lower floors and residences on upper floors. In this way, NA ❑ residents can observe the businesses after hours while the residences can be observed by the businesses during business hours. ■ NA❑ Include food kiosks, restaurants, etc. within parks and parking structures. ■ Other strategy: used n Evaluation for Agency Use Only 1.9 Security Bars, Shutters, and Doors _ ❑Conf When used and permitted by building and f re codes, security _ ❑Revise bars, shutters, and doors should allow observation of the street _ ❑NA and be consistent with the architectural style of the building. Comments: ❑ Security bars and security doors should be visually permeable (see -through). e Other strategy used: Section and ✓ Functional Area Evaluation for I Performance Performance Standard Agency Use Only Standard Strategy ■ Applicable during Site Plan Review e Applicable during Building Permit Review Section 2.0 Access Control 2.1 Building Identification ❑Conf Ensure buildings are clearly identified by street number to ❑Revise prevent unintended access and to assist persons trying to find I . ❑NA the building. Identification signs must conform to FWRC Comments: 19.140.060. Exempt Signs. ❑ Street numbers should be plainly visible and legible from the street or road fronting the property. e Bulletin #022 — January 1, 2011 Page 6 of 9 k:\Handouts\CPTED Checklist Section and ✓ Functional Area Evaluation for Performance Performance Standard Agency Use Only Standard ' Strategy ■ Applicable during Site Plan Review e Applicable during Building Permit Review In residential uses, each individual unit should be clearly numbered. In multiple building complexes, each building entry ❑ should clearly state the unit numbers accessed from than entry. In addition, unit numbers should be provided on each level or floor. e ❑ Street numbers should be made of durable materials, preferably reflective or luminous, and unobstructed (e.g. by foliage). e For larger projects, provide location maps (fixed plaque ❑ format) and directional signage at public entry points and along internal public routes of travel. e Other strategy used: 2.2 Entrances _ ❑Confl Avoid confusion in locating building entrances. _ ❑Revise _ ❑NA Comments: Entrances should be easily recognizable through design features and directional signage. (Signs must conform to FWRC 19.140.060. Exempt Signs. ■ I i Minimize the number of entry points. rt Other strategy used: El 2.3 Landscaping _Conforms Use vegetation as barriers to deter unauthorized access. []_Revise _ ❑NA Comments: ❑ Consider using thorny plants as an effective barrier. e i Other strategy used: ❑ _ i 2.4 Landscaping Location _ ❑Conf Avoid placement of vegetation that would enable access to a I _ ❑Revise building or to neighboring buildings. _ ❑NA Comments: Bulletin #022 — January 1, 2011 Page 7 of 9 k:\Handouts\CPTED Checklist Section and ✓ Functional Area Evaluation for Performance Performance Standard Agency Use Only Standard Strategy ■ Applicable during Site Plan Review e Applicable during Building Permit Review Avoid placement of large trees, garages, utility structures, fences, and gutters next to second story windows or balconies that could provide a means of access. ■ Other strategy used: 2.5 Security _ ❑Coni Reduce opportunities for unauthorized access _Revise ❑NA Comments: Consider the use of security hardware and/or human measures to reduce opportunities for unauthorized access. (Applicable during Certificate of Occupancy_ Inspection). Other strategy used: El 2.6 Signage ❑Confi Insure that signage is clearly visible, easy to read and simple _ ❑Revise to understand [Signs must conform to FWRC 19.140.060. _ ❑NA Exempt Signs]. Comments: ❑ Use strong colors, standard symbols, and simple graphics for informational signs. e Upon entering the parking area, provide both pedestrians and For Surface ❑ drivers with a clear understanding of the direction to stairs, Parking and elevators, and exits. e Parking Structures ❑ In multi -level parking areas, use creative signage to distinguish between floors to enable users to easily locate their cars. e ❑ Advise users of security measures that are in place and where to find them, i.e. security phone or intercom system. e ❑ Provide signage in the parking area advising users to lock their cars. e Bulletin 4022 — January 1, 2011 Page 8 of 9 k:\Handouts\CPTED Checklist Section and ✓ Functional Area Performance Performance Standard Standard Strategy ■ Applicable during Site Plan Review e Applicable during Building Permit Review ❑ Where exits are closed after hours, ensure this information is indicated at the parking area entrance. e Other strategy used: Evaluation for Agency Use Only Section 3.0 Ownership 3.1 Maintenance _ ❑Conf Create a "cared for" image _ ❑Revise _ ❑NA Comments: 3.2 Ensure that landscaping is well maintained, as per FWRC N19.125.090, in order to give an impression of ownership, care, and security. (Ongoing)_ Where possible, design multi -unit residential uses such that no NA ❑ more than six to eight units share a common building entrance. ■ Other strategy used: Materials Use materials, which reduce the opportunityfor vandalism. Consider using strong, wear resistant laminate, impervious glazed ceramics, treated masonry products, stainless steel ❑ materials, anti -graffiti paints, and clear over sprays to reduce opportunities for vandalism. Avoid flat or porous finishes in areas where graffiti is likely to be a problem. e ❑ Where large walls are unavoidable, refer to FWRC 19.125.040(21) regarding the use of vegetative screens. e Common area and/or street furniture shall be made of long ❑ wearing vandal resistant materials and secured by sturdy anchor points, or removed after hours. e Other strategy used: El Bulletin #022 — January 1, 2011 Page 9 of 9 ❑Revise ❑NA Comments: k:\Handouts\CPTED Checklist t c — < ECEIV SEATTLE 4,WASmxr_3T0PI ED JAN 10 2019 S.; �...- CIiY OF F� 7ER,:kt_ UAj, COMMUNITY DEVELOPME- ,ri- AMOUNT $ 5, 000.00 PREMIUM $ 31.25 POLICY No. B-509485 For value, WASHINGTON TITLE INSURANCE COMPANY, hereinafter called the company, a corporation incorporated under the laws of the State of Washington and duly authorized by the State Insurance Commissioner to insure titles, does hereby insure, subject to the annexed conditions, hereby made a part of this policy, FEDERAL WAY SCHOOL DISTRICT NO. 210, KING COUNTY, STATE OF WASHINGTON., representatives (if a corporation, its successors) and assigns, hereinafter called the insured, against loss or damage not FIVEexceedin ©U� - — —Dollars, -------------------------------------------------- which the insured may sustain by reason of any defect in the title of — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — MORTON E. LANG and MYRTLE P. DUNCAN, hereinafter referred to as the seller, to all the estate or interest in the premises specified and described in Schedule A, hereto annexed and hereby made a part of this policy, or by reason of liens or encumbrances charging the same, at the date of this policy, save and except this policy does not insure against loss or damage by reason of any estate or interest, defect, lien, encumbrance or objection noted in annexed Schedule B, which is a part hereof. Any loss under this policy is to be established in the manner provided in said conditions and shall be paid upon compliance by the insured with and as prescribed in said conditions, and not otherwise. IN WITNESS WHEREOF, WASHINGTON TITLE INSURANCE COMPANY has caused these presents to be authen- ticated by the facsimile signature of its President, and its corporate name and seal to be hereunto affixed; but this policy is not valid unless attested by the Secretary or an Assistant Secretary. Dated this 25th day of January, 1956 , at eight o'clock A. M. 'Fti : gig s E } 6 ��' �i• t9:�F'.� � , J� President v Attest: Assistant Secretary L POLICY Xio. B-509485 1. The estate or interest of the seller covered by this policy. Fee simple estate presumptively subject to the community interest of their respective spouses Lillian A. Lang and Richard B. Duncan. NOTH: Title to the premises hereinafter described has been registered under the provisions of the Land Registration Act of the State of Washington ano may be dealt with only on the registers. Any conveyance or contract for the conveyance thereof should be marked "Registered Land" and be accompa:inied by the owner's duplicate certificate of title, in order to effect registration thereof. 2. The premises in which the seller his the estate or interest covered by this policy. East half of south half of the south half of the northeast quarter of the southwest quarter of section 8, township 21, north, range 4 east, W.M. , in King County, Washington. POLICY No. B-509485 This policy does not insure against: 1, Questions of location, boundary and area; overlaps and encroachments by improvements belonging to these or adjoining premises; all dependent upon actual survey for determination. 2. The existence of roads or ways not established of record, or existence of county roads. 3. Rights or claims of persons in possession; not shown of record; rights claimed under instruments of which no notice is of record and rights or claims based upon facts of which no notice is of record but of which the insured has notice; material or labor liens of which no notice is of record; liens created under the Workmen's Compensation Act. 4. Exceptions and reservations in United States patents; any governmental action based upon the claim that any part of said premises is the bed of navigable waters; action by any governmental agency for the purpose of regulating occupancy or use of said premises or any building or structure thereon. 5. General taxes not yet payable; matters relating to special assessments and special levies, if any, preceding the same becoming fixed and shown as a lien. 6. Service or installation charges by any city, town or district for utilities. 7. Easement for ingress and egress over the east 20 feet of said premises, constructive notice of which is given by recital contained in deed dated July 15, 1925, executed by M. F. Wight, Inc., a Washington corporation, to L. C. Mundt, a single man, filed with the Registrar July 152 1925, under auditorts file No. 2045894. 8. Pendency of King County Superior Court Cause No. 489342, being an action by Federal Way School Distriet No. 210, to condemn said premises and other lands. DOTE: General -taxes for the year 1956, in the sum of $22.34 on said premises and other property, being Tax No. 35, will become payable February 15, 1956. (End of Schedule B) c 1. NOTICE OF DEFECT, SUIT OR ACTION: The Company shall -have the right to, and will, at its own cost, defend the insured in all suits, actions or proceedings founded upon a claim of title, encumbrance or defect which existed or is claimed to have existed prior in date to this policy and not excepted herein; reserving, however, the option at any time of settling the claim or paying the policy in full. In case any such suit, action or proceeding shall be instituted it shall be the duty of the insured at once to give notice thereof in writing to the company at its Home Office, and, if the insured is a party to such suit, action or proceeding, to secure to the company, within ten days after service of the first process upon the insured, the right to defend such suit, action or proceeding in the name of the insured so far as necessary to protect the insured, and m render all reasonable assis tance in such defense. If such notice shall not be given, or the right to defend secured, as above provided, then all liability of the company with regard to the subject matter of such suit, action or proceeding shall cease and be determined; provided, however, that failure to give such notice shall in no case prejudice the insured if the insured shall not have any knowledge of such suit, action or proceeding. 2. CLAIM OF LOSS; PAYMENT OF LOSS: In the event of Canal judicial determination by a court of competent juris- diction, under which the insured is dispossessed or deprived of the premises covered hereby or the estate or interest insured is impaired by reason of any adverse interest, lien or encumbrance not excepted herein, or, if this policy covers a mortgagee's interest, and such final judicial determination shall defeat or impair the mortgagor's title to all of any part of said premises or establish the priority to the mortgage of a lien or encumbrance not excepted in this polity, claim may be made hereunder, provided the conditions have been complied with in all respects. A statement in writing of any loss or damage, for which it is claimed the company is liable under this policy, shall be furnished to the company within sixty days after such loss or damage shall have been ascertained. No right of action shall accrue under this policy until thirty days after such statement shall have been furnished and no recovery shall be had under this policy unless an action shall have been commenced thereon within one year after the expiration of said thirty days. 3. LIMIT OF LIABILITY; SUBROGATION: The Company may at any time pay this policy in full, whereupon all liability of the company shall terminate. The total liability under this policy, exclusive of costs (the costs not including in any case fees of counsel or attorneys employed by the insured), shall in no case exceed the face of the policy, and every payment by the company shall reduce the policy by the amount paid. When the company shall have paid a loss under this policy it shall be subrogated to all rights and remedies which the insured may have against any person or property with respect to such claim, or would have if this policy had not been issued, and the insured shall forthwith transfer all such rights to the company accord- ingly. If the payment made by the company does not cover the loss of the insured, such subrogation shall be proportionate. In case this policy covers a mortgagee's interest only, the company may pay the insured the entire mortgage indebtedness, with interest at the rate specified in the mortgage, and thereupon the insured shall assign and transfer to the company the mortgage and the indebtedness secured thereby, together with A iasrruments evidencing or securing the same, or shall convey to the com- pany any estate lawfully vested in the insured by ,virtue of acquisition of said premises, and all liability of the company shall thereupon terminate. Demand for payment must be accompanied by production of the policy for endorsement of such pay- ment. If the policy be not so produced, indemnity satisfactory to the company must be furnished. 4. REFUSAL TO PURCHASE ESTATE: The Company shall not be liable for any loss or damage resulting from the refusal of any party to enter into, or carry out, any contract respecting the estate or interest insured. 5. LIABILITY UNDER MORTGAGEE'S POLICY: If this polity covers a mortgagee's interest only and any insured acquires said premises, or any part thereof, by foreclosure, or in other legal manner, in satisfaction of said indebtedness, or any part thereof, or under FHA insurance contract, this policy shall continue in force in favor of such insured, and each successor in interest in ownership, subject to all of the conditions hereof applicable to an owner of land. 6. ASSIGNMENT OF POLICY: The obligations of the Company under this policy shall extend to the Insured above named; to anyone to whom this policy may be assigned in writing endorsed hereon; m the executors, administrators, heirs and devises of the Insured; and to any assignee of any mortgage which may be insured by this policy. The "Insured," when hereto- fore mentioned, refers to each party separately to whom the Company is, at the time referred to, obligated under the terms of this policy. a �"_T, I � �- � a -a M, , �t SEATTLE 4WASEIINGTON AMOLTPIT $ 5000.00 PREMI[7M $ 33.75 POLICY No. B-513040 For value, WASHINGTON TITLE INSURANCE COMPANY, hereinafter called the company, a corporation incorporated under the laws of the State of Washington and duly authorized by the State Insurance Commissioner to insure titles, does hereby insure, subject to the annexed conditions, hereby made a part of this policy, FEDERAL WAY SCHOOL DISTRICT NO. 210, representatives (if a corporation, its successors) and assigns, hereinafter called the insured, against loss or damage not exceeding FIVE THOUSAND - -- - - - - - - •- - - - — - - - - - - - - - - - - Dallars, which the insured may sustain by reason of any defect in the title of -- — — — — — — — — — — — GUY MELVIN CURTIS and CELESTINE E. CURTIS, his wife, hereinafter referred to as the seller, to all the estate or interest in the premises specified and described in Schedule A, hereto annexed and hereby made a part of this policy, or by reason of liens or encumbrances charging the same, at the date of this policy, save and except this policy does not insure against loss or damage by reason of any estate or interest, defect, lien, encumbrance or objection noted in annexed Schedule B, which is a part hereof. Any loss under this policy is to be established in the manner provided in said conditions and shall be paid upon compliance by the insured with and as prescribed in said conditions, and not otherwise. IN WITNESS WHEREOF, WASHINGTON TITLE INSURANCE COMPANY has caused these presents to be authen- ticated by the facsimile signature of its President, and its corporate name and seal to be hereunto affixed-, but this policy is not valid unless attested by the Secretary or an Assistant Secretary. Dated this 20th day of '-'larch, 1956 at eight o'clock A • M. MWWO�-.. `��alcFda r ` By President 1 -'VI ,;� s.. Attest.• �CG��(, r r� POLICY NO. B_513o40 �al]TaL rAl� 1. The estate or interest of the seller covered by this policy. Fee simple estate. NOTE: Title to the premises hereinafter described has been registered under the provisions of the Land Registration Act of the State of Washington and may be dealt with only on the register. Any conveyance or contract for the conveyance thereof should be marked "Registered Land" and be accompanied by the owner's duplicate certificate of title, in order to effect registration thereof. 2. The premises in which the seller has the estate or interest covered by this policy. East half of north half of south half of northeast quarter of southwest quarter of section 8, township 21 north, range 4 east, W.M., in King County, Washington, EXCEPT the east 30 feet thereof. POLICY No. B-513040 This policy does not insure against: 1. Questions of location, boundary and area; overlaps and encroachments by improvements belonging to these or adjoining premises; all dependent upon actual survey for determination. 2. The existence of roads or ways not established of record, or existence of county roads. 3. Rights or claims of persons in possession, not shown of record; rights claimed under instruments of which no notice is of record and rights of claims based upon facts of which no notice is of record but of which the insured has notice; material or labor liens of which no notice is of record; liens created under the Workmen's Compensation Act. 4. Exceptions and reservations in United States patents; any governmental action based upon the claim that any part of said premises is the bed of navigable waters; action by any governmental agency for the purpose of regulating occupancy or use of said premises or any building or structure thereon. 5. General taxes not yet payable; matters relating to special assessments and special levies, if any, preceding the same becoming fixed and shown as a lien. 6. Service or installation charges by any city, town or district for utilities. (End of Schedule B) CO. 1. NOTICE OF DEFECT, SUIT OR ACTION: The Company shall -have the right to, and will, at its own cost, defend the insured in all suits, actions or proceedings founded upon a claim of title, encumbrance or defect which existed or is claimed to have existed prior in date to this policy and not excepted herein; reserving, however, the option at any time of settling the claim or paying the policy in full. In case any such suit, action or proceeding shall be instituted it shall be the duty of the insured at once to give notice thereof in writing to the company at its Home Office, and, if the insured is a parry to such suit, action or proceeding, to secure to the company, within ten days after service of the first process upon the insured, the right to defend such suit, action or proceeding in the name of the insured so far as necessary to protect the insured, and to render all .reasonable assis- tance in such defense. If such notice shall not be given, or the right to defend secured, as above provided, them ail liability of the company with regard to the subject matter of such suit, action or proceeding shall cease and be determined; provided, however, that failure to give such notice shall in no case prejudice the insured if the insured shall not have any knowledge of such suit, action or proceeding. 2. CLAIM OF LOSS; PAYMENT OF LOSS: In the event of final judicial determination by a court of Competent juris- diction, under which the insured is dispossessed or deprived of the premises covered hereby or the estate or interest insured is impaired by reason of any adverse interest, lien or encumbrance not excepted herein, or, if this policy covers a mortgagees interest, and such final judicial determination shall defeat or impair the mortgagor's title to all or any part of said premises or establish the priority to the mortgage of a lien or encumbrance not excepted in this polity, claim may be made hereunder, provided the conditions have been complied with in all respects. A statement in writing of any loss or damage, for which it is claimed the company is liable under this policy, shall be furnished to the company within sixty days after such loss or damage shall have been ascertained. No right of action shall accrue under this policy until thirty days after such statement shall have been furnished and no recovery shall be had under this policy unless an action shall have been commenced thereon within one year after the expiration of said thirty days. 3. LIMIT OF LIABILITY; SUBROGATION: The Company may at any time pay this policy in full, whereupon all fiabiliry of the company shall terminate. The total liability under this policy, exclusive of costs (the costs not including in any case fees of counsel or attorneys employed by the insured), shall in no case exceed the face of the policy, and every payment by the company shall reduce the policy by the amount paid. When the company shall have paid a loss under this policy it shall be subrogated to all rights and remedies which the insured may have against any person or property with respect to such claim, or would have if this policy had not been issued, and the insured shall forthwith transfer all such rights to the company accord- ingly. If the payment made by the company does not cover the loss of the insured, such subrogation shall be proportionate. In case this policy covers a mortgagee's interest only, the company may pay the insured the entire mortgage indebtedness, with interest at the rate specified in the mortgage, and thereupon the insured shall assign and transfer to the company the mortgage and the indebtedness secured thereby, together with all instruments evidencing or securing the same, or shall convey to the com- pany any estate lawfully vested in the insured by virtue of acquisition of said premises, and all liability of the company shall thereupon terminate. Demand for payment must be accompanied by production of the policy for endorsement of such pay- ment. If the policy -be not so produced, indemnity satisfactory to the company must be furnished. 4. REFUSAL TO PURCHASE ESTATE: The Company shall not be liable for any loss or damage resulting from the refusal of any party to enter into, or carry out, any contract respecting the estate or interest insured. 5. LIABILITY UNDER MORTGAGEE'S POLICY: If this policy covers a mortgagee's interest only and any insured acquires said premises, or any part thereof, by foreclosure, or in other legal manner, in satisfaction of said indebtedness, or any part thereof, or under FHA insurance contract, this policy shall continue in force in favor of such insured, and each successor in interest in ownership, subject to all of the conditions hereof applicable to an owner of land. <. ASSIGNMENT OF POLICY: The obligations of the Company under this policy shall extend to the Insured above named; to anyone to whom this policy may be assigned in writing endorsed hereon; to the executors, administrators, heirs and devises of the Insured; and to any assignee of any mortgage which may be insured by this policy. The "Insured," when hereto- fore mentioned, refers to each parry separately to whom the Company is, at the time referred to, obligated under the terms of this policy. The Company has not surveyed the premises described in _46 S�3 4 YO The sketch below is made solely for the purpose of assisting in locating said premises and the Company assumes no liability for variations, if any, in dimensions and location ascertained by actual survey. It does not purport to show ALL highways, roads and easements adjoining or affecting said premises. Map Dept. Reference. lo! 111919 of 7ualualins x8l PAS O; PEW 9sfl 1 IKY All ' ' paa�,� V119 ,.9 V � o q � J „ of C UI O IL m O .4 �G ►Qy D) 1-4 d A Lip ti d �' o T U /-{ r� 0 'R G �+ T V (n 5 . 4 s n' V v L ca -b M.1 fr F d w i V C s ~" y d bo cd LeiCd w U cd > D � C 6� 6Yi C 3 � L y an O r cu E F c z C I x En 3 cd b y o & w O a ,� Ls ($erWiraje Xa.-17212 _ 1wi#le xa. _2097 Owner's Duplicate f Certificate of Ownership TRANSFER CERTIFICATE OF TITLE '. Volume ---- 52------ Folio__)-) ------- No.210, ---------••----•-•-•----------- ------- -- Owner. King County State of Washington 9 AY[gICAN 500 3-55 N; cu C c�Y o i a 43 N' : � 4•+ C4 • p W o; Q c q V A' {■■[ of ; (01 i m � � r� m .a m ~ i 0.443 o G A ai m Gn U + • d w r � � a-1 py 3 o IM O � i 0 � V •� 0 a i p ; d a y .� 421 N a y 00 U] q•'1 •� •M+4,1 'a, O aid m o m _ E� Its w O y � � � U5 m , Pi >4 i ` I QQ I w a I I + i 4-2 �, rr lw -'�.s•-R�� � � � AV p��7*��1 _`iC _ • � .; � .11 ! i1' � t ��.. ;: ;_[ - _,'t. .. � ►.. _^■%.�Ey� � '. - _ - ' •�� 4. AM w I'll :max i t ��►► ►+;T- r • _me,. y� - � i 1 ►� r - � �, 1_ � � � T J ..-� T . S _ .-ti -••-r+rwu } ? . _ `�'' ^�'i. ' i, IIN W •► _ � i7' V K` � - �r is d ��� '� w= � _� AL r "ice - .r r.i, Y ■� Y. j 1. I! }hM r 10 •�� � - -� � "'�' W � r � _ ►..�,,��• - `� �ti 1. _ � � �' ` F - �� ■ ■ SEPA RULES WAC 197-11-970 Determination of non -significance (DNS) MITIGATED DETERMINATION OF NON -SIGNIFICANCE Description of Proposal: Mirror Lake Elementary School Replacement Applicant: Federal Way Public Schools No. 210 Location of Proposal: 625 S. 314"' Street, Federal Way, Washington 98003 Legal Description: Refer to Page 7 of State Environmental Policy Act (SEPA) — Environmental Checklist for Minor Lake Elementary School Replacement Lead Agency: Federal Way Public Schools No. 210After review of a completed environmental checklist and other information on file with the agency, the Federal Way School District No. 210 has determined this proposal will not have a probable significant adverse impact on the environment. An environmental impact statement (EIS) is not required under RCW 43.21C.030(2)(c). This information is available to the public on request. This MDNS is issued under 197-11-340(2); the lead agency will not act on this proposal for at least 14 days from the date below. Comments must be received by January 28', 2019 at 5:00 PM. Responsible Official: Mike Benzien 1211 S. 332°d Street Federal Way, WA 98003 Phone: (work) 253-945-5965 email: mbenzien@fwps.org [v . Date Issued Signature Comment Period Information: Any person may appeal and submit comments regarding this determination. Comments will be considered on environmental issues and any environmental documents related to the proposed action. All written comments will become part of the record. Comments are due by 5:00 p.m. January 28', 2019, and must be sent to suggest Mike Benzien, who is available to answer questions regarding this project at the above address or by email: RCCE1VE- J, tN 0 dJ19 CCh rry,, EVqKi LEGAL NOTICE Notice of Decision Threshold Determination: SEPA Mitigated Determination of Non -Significance (MDNS) Mirror Lake Elementary School Replacement Project, No. 1=WPScp18-MIR Project Proponent and SEPA Lead Agency: Federal Way Public Schools, Capital Projects, Operations & Maintenance Department Description of Proposal: The purpose of this project is to replace an existing elementary school for Federal Way Public Schools (FWPS) as part of a recent bond measure passed by voters in November 2017. Mirror Lake Elementary School is located on the existing 8.33-acre site at 625 South 314th Street, Federal Way, Washington, 98003. The existing school was built in 1967 with various additions and modernizations over the years, with the last remodeling completed in 1991. The existing school building is located on the eastern half of the site, oriented north to south. The automobile drive for parent and visitor traffic at Mirror Lake Elementary School is located off South 314th Street at the north side of the site at a new curb cut aligned with 7th Avenue South. This drop-off loop is developed to accommodate a long on -site queuing area. The bus and service drive is also off South 314th Street utilizing the existing curb cut approximately 250 feet east of 7th Avenue South Frontage improvements will include standard elements encompassing a driving lane, parking lane, planter strip and sidewalk. To meet ADA compliance requirements, ADA ramps will be provided at the curbs for driveway access points. Location: The site is located at 625 S 3141h Street, Federal Way, Washington, 98003. The King County Tax Parcel Number is 042104-9167 and it is located in the SW quarter of Section 08, Township 21 N, Range 4 E. Public and Agency Comments: In making a final Threshold Determination, the Responsible Official reviewed the completed environmental checklist and other environmental information on file with FWPS and the City of Federal Way; relying on the information therein to exercise substantive authority under the Washington State Environmental Policy Act, pursuant to RCW 43.21 C.060, and the Mitigated Determination of Non -Significance (MDNS) is issued under the Washington Administrative Code (WAC) 197-11-340(2). The Responsible Official has determined that the proposal does not have a probable significant adverse impact on the environment. However, in addition to contextual revisions (errata), and the inclusion of updated reports, the following mitigations have been identified as a result of further investigation and comments received from the general public and affected jurisdictions: Included in the revised SEPA Environmental Checklist is the project schedule and responses to concerns regarding accessibility, student transportation, recreation, security and emergency preparedness during construction. Decommissioning and removal of unused underground storage tanks; including requisite soil testing/remediation and tank closure assessment protocols, conducted by qualified professionals engaged by the District. Completion of a final traffic impact analysis (TIA); including the following mitigations: o Roadway frontage improvements on South 314th Street would be required and pedestrian path/onsite improvements detailed onsite o Modifications to driveways would be required; realigning the West Driveway to function as the south leg of 7th Avenue South at the driveway's intersection with South 314th Street, along with the reconstruction of the East Driveway — making both driveways operate as full access driveways. All existing site driveways would be removed. o Student Pick-Up/Drop-Off and Queuing Analysis added o School Safe Walk Routes added o Trip generation data added for 2020 horizon year o Level of service (LOS) intersection standards — based on volume/capacity ratio - added for signalized and unsignalized intersections ECEIVEC., CITY C�- 00 Wii iUNITY L:,L d �� �i'<<,i-EINT o Public transit stop information updated o Potential traffic impact fees identified, based on increased square footage. Appeal Procedure: The issuance of a Threshold Determination is subject to review under the Washington State Environmental Policy Act (SEPA). If a petitioner wishes to appeal, the process and timing of the judicial appeal procedure detailed in Revised Code of Washington (RCW) 36.070C.040 shall be followed; immediately within the appeal period provided under statute; said appeal period shall commence on January 14, 2019 and conclude on January 28, 2019. Appeal proceedings for review under this chapter will require filing a land use petition in Superior Court. There is no separate administrative SEPA appeal for this type of land use decision. Responsible Official: Michael Benzien Title: Executive Director of Maintenance and Operations Mailing Address: Federal Way Public Schools, Educational Service Center, 33330 81' Avenue South, Federal Way WA 98003 Date of publication in the Federal Way Mirror. Friday, January 11, 2019 Date of publication in the Seattle Daily Journal of Commerce, Monday, January 14, 2019 Federal Way Public Schools FEDERAL WAY Educational Service Center (ESC) PUBLIC SCHOOLS 33330 81 Avenue South Federal Way WA 98003 (253) 945-2000 STATE ENVIRONMENTAL POLICY ACT (SEPA) ENVIRONMENTAL CHECKLIST Purpose of Checklist Governmental agencies use this checklist to help determine whether the environmental impacts of your proposal are significant. This information is also helpful to determine if available avoidance, minimization or compensatory mitigation measures will address the probable significant impacts or if an environmental impact statement will be prepared to further analyze the proposal. Instructions for Applicants This environmental checklist asks you to describe some basic information about your proposal. Please answer each question accurately and carefully, to the best of your knowledge. You may need to consult with an agency specialist or private consultant for some questions. You may use "not applicable" or "does not apply" only when you can explain why it does not apply and not when the answer is unknown, You may also attach or incorporate by reference additional studies reports. Complete and accurate answers to these questions often avoid delays with the SEPA process as well as later in the decision -making process. The checklist questions apply to all parts of your proposal, even if you plan to do them over a period of time or on different parcels of land. Attach any additional information that will help describe your proposal or its environmental effects. The agency to which you submit this checklist may ask you to explain your answers or provide additional information reasonably related to determining if there may be significant adverse impact. Instructions for Lead Agencies Please adjust the format of this template as needed. Additional information may be necessary to evaluate the existing environment, all interrelated aspects of the proposal and an analysis of adverse impacts. The checklist is considered the first but not necessarily the only source of information needed to make an adequate threshold determination. Once a threshold determination is made, the lead agency is responsible for the completeness and accuracy of the checklist and other supporting documents. Use of Checklist for Non -Project Proposals For non -project proposals (such as ordinances, regulations, plans and programs), complete the applicable parts of sections A and B plus the SUPPLEMENTAL SHEET FOR NONPROJECT ACTIONS (part D). Please completely answer all questions that apply and note that the words "project," "applicant," and "property or site" should be read as "proposal," "proponent," and "affected geographic area," respectively. The lead agency may exclude (for non -projects) questions in Part B - Environmental Elements —that do not contribute meaningfully to the analysis of the proposal. T Bulletin #050 — October 17, 2016 Page 1 of 31 k:\Handouts\Environmental Checklist a Federal Way Public Schools Educational service Center (ESC) tf FEDERAL WAY 33330 8d1 Avenue South PUBLIC SCHOOLS Federal Way WA 96003 (253) 943-•2000 A. BACKGROUND 1. Name of proposed project, if applicable: Federal Way Public Schools Mirror Lake Elementary School Replacement, 625 S 314th Street, Federal Way, Washington 98003 r i L t— — I! b h -i Mirror Lake n E6ernentory �i school S� Y� ialemn 5 311rh it "'f 1� 5 y � . � ^_�SI 531anvs• — - —Si161h51 i I S 3S 7th g1 L [; {j a I 5 !:ur• S1 I I i Federal Woy b cj { 1 A 1 Figure' 1 School aistdcr {��77 TEN `i Y Y project Site Vicinity 47 xn �1pfr �+narnn�r���s Figure 1- Vicinity Map - Mirror Lake Elementary School JAN 10 2019 CITY OF FEDEP,ALV Y C:OMMUNiTY DEVELOPMEWr Bulletin #050 — actoher 17, 2016 Page 2 of 31 kAl-landoutslEnvironmental Checklist FEDERAL WAY PUBLIC SCHOOLS 2. Name of applicant: Federal Way Public SchOGIS Educational Service Center (ESCI 33330 80 Avenue South Federal Way WA 98003 (253)945-2000 Federal Way Public Schools (FWPS) Support Services Center, 1211 South 332nd St, Federal Way, WA 98003 3. Address and phone number of applicant and contact person: Applicant: Mike Benzien, Executive Director, Maintenance and Operations Federal Way Public Schools Support Services Center 1211 S 332nd Street, Federal Way WA 98003 (206) 945.5930 (Office) 4. Date checklist prepared: September 25.2018; revised January 7, 2019 5. Agency requesting checklist: Federal Way Public Schools (Lead Agency) City of Federal Way, Washington Contact Person: Robert McNeill, Senior Planner Barghausen Consulting Engineers, Inc. 18215 72°d Avenue S, Kent, WA 98032 (425) 251-6222 (Office) bmcneiIIP_baEghausen.corn 6. Proposed timing or schedule (including phasing, if applicable): The complexity of this project dictates a tentative schedule be established which remains subject to change based on the length of entitlement permitting and plan review processes, weather conditions and/or contractor availability. Included in this document is the proposed project schedule and responses to concerns regarding accessibility, student transportation, recreation, security and emergency preparedness during construction. Actual construction is projected to begin no later than late April 2019, with substantial completion scheduled for mid -July 2020. The preliminary start date for vacating the old Mirror Lake facility is scheduled for mid -July 2020, with demolition activity projected to begin in late -July 2020, with a mid - October 2020 completion date targeted — including abatement activity. 7. Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain. The Applicant has no further plans for future additions, expansion or other similar activity relative to this development proposal aside from what is described in this proposal. 8. List any environmental information you know about that has been prepared, or will be prepared, directly related to this proposal. The Applicant has commissioned several reports addressing environmental issues: Geotechnical Engineering Report, Associated Earth Sciences, Inc. (AESI) 6/18. m Subsurface Investigation Report, PBS Engineering and Environmental, Inc., (PBS) 9/24 Bulletin #050 — October 17, 2016 Page 3 of 31 k:\Handouts\Environmental Checklist Federal Way Public Schools FEDERAL WAY Educational Service Center (ESQ 6 33330 8� Avenue South PUBLIC SCHOOLS Federal Way WA 98003 (253)945-2000 • Acoustical Analysis, Stantec, 9118 • Traffic Impact Analysis, Transportation Engineering North West (TENW)11118 Arborist Report; pending, for submittal during permitting/plan review Site' Lighting/Photometdc Analysis; pending, for submittal during permitting/plan review The Applicant is fully committed to developing mitigation measures on any environmental concerns identified by these studies. Figure 2- Aerial View - Existing Mirror take Elementary School 9. Do you know whether applications are pending for governmental approvals of other proposals directly affecting the property covered by your proposal? If yes, explain. The City of Federal Way will be conducting a Process III, Use Approval review process in accordance with review criteria established in the Federal Way Revised Code (FWRC), Section 19.65.100(2). SEPA review is typically processed concurrently with Process III applications. As Lead Agency, FWPS will process this SEPA checklist its advance of permitting with the City of Federal Way. The Lakehaven Water and Sewer District will review the Mirror Lake construction plans as they relate to water and sewer availability, system capacity and infrastructure improvements necessary to adequately serve the new facility. The South King Fire and Rescue District will review plans to assure adequate fire flow and hydrant facilities are available, as well as the installation of sprinkler and alarm systems and assuring adequate fire access is maintained for emergency vehicles. Both of these Bulletin #050 — October 17, 2016 Page 4 of 31 kAHandoutslEnvironmental Checklist Federal Way Public Schools Educational Service Center (ESC) FEDERAL WAY 33330 B" Avenue South PUBLIC SCHOOLS Federal Way WA 98003 (253)945-2000 agencies' approval processes will occur concurrently with the City of Federal Way plan review and construction permitting processes. The Puget Sound Clean Air Agency (PSCAA) will require a Notice of Demolition be submitted along with the results of a professional asbestos survey of the existing facility (and proposed mitigation - if necessary). PSCAA will also require a Notice of Construction be filed. South King Fire and Rescue District (SKFRD) will conduct a thorough review of project plans; including, but not limited to, fire prevention measures, the installation of fire alarm and suppression equipment, the location and capacity of both water lines and hydrants (fire flow), and overall site plan design as related to the designation of fire lanes and emergency vehicle access. 10. List any government approvals or permits that will be needed for your proposal, if known. The list below is a preliminary assessment of permitting likely to be required for this project, pending further review. Master Land Use Application NPDES General Permit (DOE) Demolition Permits (PSCAA) Demolition Permits (City) ® Building and Construction Permits (Federal Way) Retaining Wall, Forest Practices Permits (if required) e MEP - Mechanical, Electrical and Plumbing Permits 10 Sign Permits (if required) d Stormwater Covenants ■ Water / Sewer Permits and Developer Extension Agreement (Lakehaven) The following codes will be enforced under the FWRC for this project: International Building Code (113C), 2015, as amended by Washington State Amendments WAC 51-50 ■ International Mechanical Code (IMC), 2015, as amended by Washington State Amendments WAG 51-52 Uniform Plumbing Code (UPC), 2015, as amended by Washington State Amendments WAC 51.56 & WAC 51.57 * international Fire Code (IFC), 2015. as amended by Washington State Amendments WAC 51-54 o International Residential Code, 2015, as amended by Washington State Amendments WAC 51-51 National Electric Code (NEC), 2017 Accessibility Code (ICC/ANSI Al17.1), 2009 Washington State Energy Code, 2015 WAC 51-11 Bulletin #050 — October 17, 2016 Page 5 of 31 k:\Handouts\Environmental Checklist Federal Way Public Schools Educational Service Center (ESCI 6 FEDERAL WAY 33330 801 Avenue South PUBLIC SCHOOLS Federal Way WA 98003 (253)945-2000 11. Give brief, complete description of your proposal, including the proposed uses and the size of the project and site. There are several questions later in this checklist that ask you to describe certain aspects of your proposal. You do not need to repeat those answers on this page. (Lead agencies may modify this form to include additional specific information on project description.) Mirror Lake Elementary School is located on the existing 8.33-acre site at 625 South 314th Street in Federal Way, Washington. The entire site is relatively flat or gently sloping to the southwest. The site is served by South 314th Street to the north and 6th Avenue South to the west; the site also has access to the east to 8th Avenue South. The school is mostly surrounded by single family residential development and several churches and a shelter located to the west of the site. Mirror Lake Park is located one block to the east. The school property is zoned residential single family (RS- 7.2), with schools being a permitted use. The existing school building is located on the eastern half of the site, oriented north to south. The automobile drive for parent and visitor traffic at Mirror Lake Elementary School is located off South 314th Street at the north side of the site at a new curb cut aligned with 7th Avenue South. This drop- off loop is developed to accommodate a long on -site queuing area. The bus and service drive is also off South 314th Street utilizing the existing curb cut approximately 250 feet east of 7th Avenue South. The project will include the demolition of the existing school facilities and the construction of a new elementary school campus onsite; it is anticipated the final site plan will include the construction of new playfields, paved parking and access drives, landscaping, pedestrian pathways, exterior iighting and other typical improvements outlined in preliminary plans submitted in support of this application. ftVVV� mi • �'''� r� r d . i Figure 3 - Proposed Site Plan - New Mirror Lake Elementary School The existing Mirror Lake Elementary School currently serves approximately 550 scholars from pre- kindergarten through 5th grade. The existing school was originally constructed in 1957 with various Bulletin #050 — October 17, 2016 Page 6 of 31 k:\Handouts\Environmental Checklist Federal Way Public Schools Educational Service Center (ESCI FEDERAL WAY 33330 891 Avenue South PUBLIC SCHOOLS Federal Way WA 98003 (253)945-2000 additions and modernizations over the years with the last remodel project occurring in 1987. The existing facility is comprised of a single -story building with classrooms arranged along a double loaded corridor (45,843 SF), along with seven portable classroom buildings (8,960 SF). The project will be phased, with construction occurring on an occupied site; the existing school building will remain in operation while the new school is constructed. After completion of the new school, the existing school will be demolished and remaining improvements will, subsequently, be completed. 12. Location of the proposal. Give sufficient information for a person to understand the precise location of your proposed project, including a street address, if any, and section, township, and range, if known. If a proposal would occur over a range of area, provide the range or boundaries of the site(s). Provide a legal description, site plan, vicinity map, and topographic map, if reasonably available. While you should submit any plans required by the agency, you are not required to duplicate maps or detailed plans submitted with any permit applications related to this checklist. The project site is located at 303 SW 30P Street in Federal Way, Washington, and is illustrated on the included vicinity map. An abbreviated legal description, parcel number and lot size are provided: APN: 082104-9035 Legal: SW %, Section 08, Township 21 N, Range 04 E Lot: 8.33 Acres �u.Frnrio-ry Mirror Lake Elementary Logistics Plan Demo Phase Figure 4 - Demolition Logistics - Mirror Lake Elementary School Bulletin #050 — October 17, 2016 Page 7 of 31 k:\Handouts\Environmental Checklist FEDERAL WAY PUBLIC SCHOOLS aµY � 5`a 4 ,ram} mug Federal Way Public Schools Educational Service Center (ESC) 33330 8'I Avenue South Federal Way WA 98003 (253) 945-2000 Mirror Lake Elementary Logistics Plan Construction Phase 0 'T� Figure 5 - Construction Logistics - Mirror Lake Elementary School The project will include the demolition of the existing school facilities and the construction of a new 60,322 SF elementary school campus onsite serving 600 scholars; it is anticipated the final site plan will include the construction of new playfields, paved parking and access drives, landscaping, pedestrian pathways, exterior lighting and other typical improvements outlined in preliminary plans submitted in support of this application. B. ENVIRONMENTAL ELEMENTS 1. Earth a. General description of the site: [ ] Flat [ ] Rolling [ ] Hilly [ ] Steep Slopes [ ] Mountainous [ X ] Other b. What is the steepest slope on the site (approximate percent slope)? Bulletin #050 — October 17. 2016 Page 8 of 31 k:\Handouts\Environmental Checklist Federal Way Public Schools Educational Service Center (ESC) FEDERAL WAY 33330 81" Avenue South PUBLIC SCHOOLS Federal Way WA 0 (253) 443-2-200000 Topographically, the site is relatively fat, but generally slopes down from northeast to southwest from a high elevation point of approximately 450 feet in the northwest corner of the school property. Within the specific vicinity of the existing school building the topography is relatively flat with minimal, if any, grade difference. c. What general types of soils are found on the site (for example, clay, sand, gravel, peat, muck)? If you know the classification of agricultural soils, specify them and note any agricultural land of long-term commercial significance and whether the proposal results in removing any of these soils. According to soil data obtained from the USDA Web Soil Survey, soils on the site consist primarily of Arents. Alderwood material, 0 to 6 percent slopes (AmB). Furthermore, based on preliminary findings deduced from geotechnical explorations conducted on the site, subsurface soils are comprised of fill soils underlain by Vashon lodgement till and Vashon advance outwash. Generally, these soils are hydrologically classified with very low permeability, and poor infiltration potential. Please refer to our submittal package and the copy of, "Subsurface Exploration, Geologic Hazard and Preliminary Geotechnical Engineering Report," prepared by Associated Earth Sciences, Kirkland, Washington, dated June 2018, for a detailed discussion of these issues. d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe. To the best of the Applicant's knowledge, there are no surface indications of unstable soils and/or a history of soil instability manifesting itself, either onsite or in the immediate vicinity. Figure 6 - Perspective Rendering (NW Corner) Proposed Mirror Lake Elementary School Bulletin #050 — October 17, 2016 Page 9 of 31 k:lHandouts\Environmental Checklist Federal way Public Schools Educational Service Center (ESCI FEDERAL WAY 33330 90 Avenue South PUBLIC SCHOOLS Federal way WA 003 (253)945-2-2000 e. Describe the purpose, type, total area, and approximate quantities and total affected area of any filling, excavation, and grading proposed. Indicate source of fill. Preliminary civil engineering plans project grading activity may result in extensive quantities (CY I cubic yards) of cut and fill; current estimates indicate 22,067 CY cut and 2,635 CY of fill. All existing fill beneath proposed foundations may need to be removed (19,432 SF) and replaced with structural fill or controlled density fill; extending laterally by a distance equal to the depth of overexcavation. Precise amounts of cubic yards cut and the amount and source of fill will be determined later; the Applicant is committed to using approved sources of clean fill materials. f. Could erosion occur as a result of clearing, construction, or use? If so, generally describe Temporary erosion is a possibility associated with construction activity. The Applicant's finalized permit plans will include a temporary erosion and sedimentary control (TESC) plan; implemented using the best management practices (BMPs) associated with erosion prevention and control. The TESC system will be designed in accordance with the City of Federal Way erosion control requirements, in addition to, the 2016 KCSWDM and the Department of Ecology Construction Stormwater Pollution Prevention Plan (SWPPP). TESC facilities wit€ include at a minimum: stabilized construction entrance, silt fencing, catch basin inserts, interceptor swales, sediment ponds or tanks, and other miscellaneous sediment control facilities. The existing pavement will likely be used for stabilized construction access and staging until such time as it needs to be removed for construction of the proposed improvements. Temporary sediment settling tanks will be used for sediment control. The construction documents will include requirements for the contractor to manage the construction site in accordancewith BMPs. This will include marking the clearing limits; limiting the site area that is exposed and stabilizing exposed areas with mulch or other approved measures; protecting slopes and managing any water from construction dewatering. g. About what percent of the site will be covered with impervious surfaces after project construction (for example, asphalt or buildings)? Based on the preliminary c-nril engineering plans prepared for this submittal, approximately twelve percent (12%) will be building coverage by the new €Mirror Lake Elementary School, with a total of forty-two percent (42%) of the site covered by impervious surfaces (asphalt paving, driveways, sidewalks, walkways, etc.). With maximum lot coverage for structures established at seventy-five percent (75%) under the FWRC, this project falls well below the maximum threshold. However, these are preliminary estimates and subject to change as a result of permittinglplan review. h. Proposed measures to reduce or control erosion, or other impacts to the earth, if an Specific measures to reducelcontrol erosion will be detailed on the TESC plan referred to in (f) above; these measures will likely focus on erosion potential associated with construction activity. Once the project is completed, the chances of significant erosion are virtually nil. Bulletin #050 — October 17, 2016 Page 10 of 31 k:\Handouts\Environmental Checklist y FEDERAL WAY ■ PUBLIC SCHOOLS Ir 2. Air Federal Way Public Schools Educational Service Center (ESC) 33330 8O1 Avenue South Federal Way WA 98003 (253) 945-2000 a. What types of emissions to the air would result from the proposal during construction, operation, and maintenance when the project is completed? If any, generally describe and give approximate quantities if known. To the best of the Applicant's knowledge, the project will not produce any significant impacts andlor result in emissions of particulates or noxious odors either during construction or future operations. During construction minimal impacts may be realized as particulates (dust, dirt, etc.) are released into the air on a limited (oasis. A reliable estimate of quantities cannot be formulated at this time, b. Are there any off -site sources of emissions or odor that may affect your proposal? If so, generally describe. None; Not Applicable. The only potential source lies in the emissions from vehicular traffic using the adjacent rights -of -way. c. Proposed measures to reduce or control emissions or other impacts to air, if any: Controlled watering of the ground will reduce particulates emitted during construction; the use of mufflers and spark arresters will help minimize vehicle emissions from construction equipment. 3. Water a. Surface Water 1) Is there any surface water body on or in the immediate vicinity of the site (including year- round and seasonal streams, saltwater, lakes, ponds, wetlands)? If yes, describe type and provide names. If appropriate, state what stream or river it flows into. Three (3) small lakesfponds are within a mile of the Mirror Lake Elementary School site; Mirror Lake to the west, Fishers Pond to the southwest and Easter Lake to the northeast. The site is located within the Hyiebos Creek drainage basin, which ultimately discharges to the Puget Sound. 2) Will the project require any work over, in, or adjacent to (within 200 feet) the described waters? If yes, please describe and attach available plans. No; Not Applicable. 3) Estimate the amount of fill and dredge material that would be placed in or removed from surface water or wetlands and indicate the area of the site that would be affected. Indicate the source of fill material. Under the Applicant's proposal, no filling or dredging of designated wetlands is associated with this project. Bulletin #050 — October 17, 2016 Page 11 of 31 k:\Handouts\Environmental Checklist FEDERAL WAY PUBLIC SCHOOLS Federal Way Public Schools Educational Service Center (ESC) 33330 801 Avenue South Federal Way WA 98003 (253)945-2000 4) Will the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities if known. None; Not Applicable. Under the Applicant's proposal, no surface water withdrawals andlor diversions are associated with this project; surface runoff will be controlled onsite. 5) Does the proposal lie within a 100-year floodplain? If so, note location on the site plan. The site is located in Zone X; an area with minimal flood hazard. 6) Does the proposal involve any discharges of waste materials to surface waters? If so, describe the type of waste and anticipated volume of discharge. None; Not Applicable. Under the Applicant's proposal, no discharge of waste materials to surface waters is associated with this proposal. b. Ground Water 1) Will groundwater be withdrawn from a well for drinking water or other purposes? If so, give a general description of the well, proposed uses and approximate quantities withdrawn from the well. Will water be discharged to groundwater? Give general description, purpose, and approximate quantities if known. Under the Applicant's proposal, no groundwater will be withdrawn, nor is any discharge to groundwater resulting from this project Excavation related to construction may reveal the existence of perched groundwater deposits in the substrate; requiring removal through a dewatering process (often requiring a separate permit). 2) Describe waste material that will be discharged into the ground from septic tanks or other sources, if any (for example: domestic sewage; industrial, containing the following chemicals; agricultural; etc.). Describe the general size of the system, the number of such systems, the number of houses to be served (if applicable), or the number of animals or humans the system(s) are expected to serve. Under the Applicant's proposal, no discharge of waste materials to ground waters is associated with this construction project. c. Water Runoff (including stormwater) 1) Describe the source of runoff (including stormwater) and method of collection and disposal, if any (include quantities, if known). Where will this water flow? Will this water flow into other waters? If so, describe Paved impervious surfaces are the only potential source of stormwater runoff; runoff will be collected through the onsite stormwater system and conveyed to the designated point of discharge. The Mirror Lake site is located within the Hylebos Creek drainage basin, which ultimately discharges to the Puget Sound. Stormwater runoff from the property is conveyed to approximately the midway point of the southern boundary line of the school parcel. Stormwater flow is then conveyed westerly towards 6th Avenue South via a drainage ditch and discharged into the public storm drainage system. Within the public drainage system, stormwater is generally conveyed southerly to Bulletin #050 — October 17, 2016 Page 12 of 31 0Handou[s1Environmental Checklist �r FEDERAL WAY PUBLIC SCHOOLS P Federal Way Public Schools Educational Service Center (ESC{ 33330 r Avenue South Federal Way WA 98003 (253) 945-2000 Hylebos Creek eventually discharging to the Puget Sound via Commencement Bay. The proposed stormwater strategy and design will not alter the existing downstream drainage patterns or path from the site. Please refer to the civil engineering plans included with this submittal for more detailed information on collection, conveyance and discharge Per FWRC 19.145.490. FWPS will be required to submit a hazardous materials inventory with building and construction permitting. In addition, with a proposed landscaped area in excess of 10,000 square feet, FWPS will need to prepare an operations and maintenance manual using best management practices (BMPs), per FWRC 19.145.510. The site is also within the Tacoma Smelter Plume detect area and FWPS is required to obtain soil analysis conducted by an independent consultant to detect and quantify the presence of historic arsenic andlor lead contamination. 2) Could waste materials enter ground or surface waters? If so, generally describe. Linder the Applicant's proposal, the project has been designed to eliminate and/or limit any potential for groundwater contamination. While excessive amounts are highly unlikely, there is a possibility for surface runoff conveying unspent hydrocarbons and/or other surface contaminants from paved surfaces onsite into groundwater. 3) Does the proposal alter or otherwise affect drainage patterns in the vicinity of the site? If so, generally describe. To the best of the Applicant's knowledge, drainage patterns for other properties in the vicinity will not be affected by this proposal. The Applicant's preliminary drainage plan demonstrates specific improvements designed to monitor drainage patterns and control runoff. d. Proposed measures to reduce or control surface, ground and runoff water, and drainage impacts, if any. The stormwater design will be developed in compliance with the 2016 King County Stormwater Design Manual (KCSWDM) as adopted by the City of Federal Way, as well as the City's Addendum to the 2016 KCSWDM dated January 8, 2017. The site is located within the Hylebos Creek drainage basin, which ultimately discharges to the Puget Sound. Stormwater runoff from the property is conveyed to approximately the midway point of the southem boundary line of the school parcel. Stormwater flow is then conveyed westerly towards 6th Avenue South via a drainage ditch and discharged into the public storm drainage system. Within the public drainage system. stormwater is generally conveyed southerly to Hylebos Creek eventually discharging to the Puget Sound via Commencement Bay. Since the existing impervious surface coverage for the site is 41.87%, the project meets the 35% threshold requirement to classify as a "redevelopment." Additionally, water quality treatment is required for all pollution generating impervious surfaces, and the project must also comply with jurisdictional flow control requirements. Soil conditions in the site area are not conducive to infiltration, eliminating options to use bioretention facilities or permeable pavement to mitigate stormwater runoff from the site. With on -site infiltration infeasible, the stormwater management strategy for water quality treatment and flow control will encompass the use of large sand filter systems and detention facilities. Iletin #050 — October 17, 2016 Page 13 of 31 k:\Handouts\Environmental Checklist Federal Way Public Schools Educational Service Center (ESC) FEDERAL WAY 33330 80 Avenue South PUBLIC SCHOOLS Federal Way WA 00 (253) 945-2-2000(i The site resides within a City designated Enhanced Basic Water Quality Treatment area. In order to meet this level of required treatment, sand filter facilities may be proposed for various areas of the site to treat runoff from target pollution generating impervious surfaces such as the parking lots, drive aisles, service areas, and synthetic turf playfield. The site is also located within a designated Conservation Flow Control Area. To address this level of required flow control, one detention facility is currently proposed to be located in the southwest corner of the school property near the relocated playfiields. Based on current sizing, the proposed stormwater detention pond will be 7,600 square feet atthe bottom, 13,7 50 square feet at the top, with a depth of 6 feet and have a volume capacity of 63,000 cubic feet. FWPS will be reviewing options for stormwater water quality and flow control as part of the permitting/plan review process. Please refer to the preliminary drainage plan prepared as part of the design package as a means of identifying the Applicant's proposal to addressrcontrol surface water runoff. Bulletin #050 — October 17, 2016 Page 14 of 31 k:\Handouts\Environmental Checklist FEDERAL WAY PUBLIC SCHOOLS 4. Plants Federal Way Public Schools Educational Service Center (ESQ 33330 SO Avenue South Federal Way WA 98003 (253)945-2000 a. Check the types of vegetation found on the site: [ X ] Deciduous tr al a en, other [ X ] Evergreen tre fir, ce ar, pine Other [ X ] Shrubs [ X ] Grass [ ] Pasture [ ] Crop or grain [ ] Orchards, vineyards or other permanent crops. [ ] Wet soil plants: cattail, buttercup, bulrush, skunk cabbage, other [ ] Water plants: water lily, eelgrass, milfoil, other [ ] Other types of vegetation b. What kind and amount of vegetation will be removed or altered? Under the Applicant's proposal, and given the nature of the project, a number of trees and shrubs may be removed to accommodate the project design. Specific details on species, size and location of trees and shrubbery slated for removal will be detailed on preliminary demolition and landscape plans - to be finalized at a later date. Where possible, existing trees and shrubs may be incorporated into the proposed plan. ti Imo. Lea J _ 4 Figure 7 - Proposed Landscaping Plan - Mirror Lake Elementary School c. List threatened and endangered species known to be on or near the site. To the best of the Applicant's knowledge, there are no known threatened or endangered species onsite or in the immediate vicinity. Bulletin #050 — October 17, 2016 Page 15 of 31 k:lHandouts\Environmental Checklist Federal Way Public Schools Educational Service Center (ESC) FEDERAL WAY 33330 80 Avenue South PUBLIC SCHOOLS Federal Way WA 98003 (253)945-2000 d. Proposed landscaping, use of native plants, or other measures to preserve or enhance vegetation on the site, if any: The Applicant's plans for landscaping ❑nsite will feature trees and shrubs native to the Pacific Northwest - including a mixture of deciduous and coniferous trees and drought -tolerant plants where appropriate. Please refer to the preliminary landscape plans for a schedule of proposed plantings. e. List all noxious weeds and invasive species known to be on or near the site. To the best of the Applicant's knowledge, there are no noxious weeds and/or invasive species on or near the site. 5. Animals a. List any birds and other animals which have been observed on or near the site or are known to be on or near the site. Examples include: [ Xk��a)ls! awks, eagles, heron, other: [ ] Deer, bear, elk, beaver, other: [ ] Fish: Bass, salmon, trout, herring, shellfish, other: b. List any threatened and endangered species known to be on or near the site. To the best of the Applicant's knowledge, there are no threatened or endangered species known to be on or near the site on a regular basis. c. Is the site part of a migration route? If so, explain. The project site is located within the Pacific Flyway; well -documented as a migratory route for numerous species of birds and waterfowl. d. Proposed measures to preserve or enhance wildlife, if any: None; Not Applicable. e. List any invasive animal species known to be on or near the site. To the best of the Applicant's knowledge, there are no invasive animal species known to be on or near the project site. Bulletin #050 — October 17, 2016 Page 16 of 31 k:\Handouts\Environmental Checklist FEDERAL WAY PUBLIC SCHOOLS 6. Energy and Natural Resources Federal Way Public Schools Educational Service Center (ESCI 33330 80 Avenue South Federal Way WA 98003 (253) 945-2000 a. What kinds of energy (electric, natural gas, oil, wood stove, solar, wind) will be used to meet the completed project's energy needs? Describe whether it will be used for heating, cooling, manufacturing, storage, etc. Under the Applicant's proposal, either or both electric and/or gas energy will serve to meet the project's anticipated needs. b. Would the project affect potential use of solar energy by adjacent properties? If so, generally describe the degree of impact. To the best of the Applicant's knowledge, this project would not interfere with the potential use of solar energy by adjacent properties. c. What kinds of energy conservation features are included in the plans for this project? List other proposed measures to reduce or control energy impacts, if any: To the best of the Applicant's knowledge, energy conservation features will be incorporated into the project's design and will be detailed during the permitting phase of the project - including the submittal of required energy worksheets. 7. Environmental Health a. Are there any environmental health hazards, including exposure to toxic chemicals, risk of fire and explosion, spill, or hazardous waste that could occur as a result of this proposal? If so, describe. To the best of the Applicant's knowledge, no projected environmental health hazards are or will be associated with this proposal. The risk of fire is not expected to exceed that associated with other similar educational facilities; in fact current design standards will almost certainly provide a major upgrade over existing levels of protection in terms of fire prevention. 1) Describe any known or possible contamination at the site from present or past uses. To the Best of the Applicant's knowledge, there is no known contamination onsite, nor is there any reason to anticipate contamination exists from present and/or past educational uses. While performing due diligence on this project, evidence of the existence of an underground storage tank (UST) was discovered onsite; in an area covered by an asphalt slab. While field study indicates the tank had likely been removed some time ago, the possibility of contamination remains in the surrounding soils. Extrapolation indicates the tank was less than 10 feet in diameter, with a base approximately 10 to 12 feet below ground surface (BGS); somewhat similar in size to USTs at other FWPS school sites. Studies conducted on soil samples revealed no petroleum impacted soils in any areas surrounding the UST, to a depth of 17 feet BGS. FWPS will conduct the necessary studies and field work to evaluate the soil conditions in the area where the tank is presumed to have been located. These efforts include analysis of soils beneath the building slab which could not be analyzed due to the location of the building in reference to the slabltank area. Please Bulletin #050 — October 17, 2016 Page 17 of 31 k:lHandoutslEnvironmental Checklist FEDERAL WAY PUBLIC SCHOOLS Federal Way Public Schools Educational Service Center (ESC) 33330 8' Avenue South Federal Way WA 98003 (253)945-2000 refer to the subsurface investigation report included with this submittal for further details. The Applicant remains fully committed to complete cleanup/remediation of the soils onsite as part of the Lake Grove demolition and UST closure processes. The site is located within the Tacoma Smelter Plume detect area and FWPS is required to obtain soil analysis to detect the presence of historic arsenic and/or lead contamination; 0 FWPS has commissioned the appropriate analysis which will be included with this submittal. �CQ In addition, with a proposed landscaped area in excess of 10,000 square feet, FWPS will need to prepare an operations and maintenance manual using best management practices (BMPs), per FWRC 19.145.510. The presence of asbestoswithin existing structures will be evaluated with an asbestossurvey conducted by qualified professionals; required mitigation will be provided in terms of removal from the site. Evidence of the study and findings will be provided to Federal Way as part of the demolition permit process and the required Notice of Demolition will be filed with PSCAA, demonstrating compliance with their requirements as well. 2) Describe existing hazardous chemicals/conditions that might affect project development and design. This includes underground hazardous liquid and gas transmission pipelines located within the project area and in the vicinity. To the best of the Applicant's knowledge, there are no hazardous chemicals or conditions - including transmission pipelines - present onsite or in the immediate vicinity which could affect project development andlor design. 3) Describe any toxic or hazardous chemicals that might be stored, used, or produced during the projects development or construction, or at any time during the operating life of the project. Under the Applicant's proposal, aside from materials used during the educational process, no toxic or hazardous chemicals will be routinely stored, used and/or produced during the project's construction and/or during routine operations as an educational facility. With the site located within the five- and 10-year wellhead capture zone; designated as a critical aquifer recharge area under the provisions of the Growth Management Act (Chapter 36.70A RCW), per FWRC 19.145.490, FWPS will be required to submit a hazardous materials inventory with building and construction permitting. 4) Describe special emergency services that might be required. To the best of the Applicant's knowledge, special emergency services will not be required by this project on a regular basis: either during construction or as a matter of routine operation. 5) Proposed measures to reduce or control environmental health hazards, if any: With no environmental health hazards and/or projected impacts identified at this stage of the development process, excluding possible asbestos mitigation, and pending evidence to the contrary, no mitigation measures are required or proposed. Bulletin #050 — October 17, 2016 Page 18 of 31 k HandoutslEnvironmental Checklist �j. FEDERAL WAY ■ PUBLIC SCHOOLS b. Noise Federal Way Public Schools Educational Service Center (ESC) 33330 8* Avenue South Federal Way WA 98003 (253) 945-2000 1) What types of noise exist in the area which may affect your project (for example: traffic, equipment, operation, other)? Minimal noise impacts may originate from school -related traffic on the adjacent public andlor private rights -of -way; the Applicant does not anticipate any adverse impacts affecting the project. Traffic on public rights -of -way are exempt from FWRC noise regulations. Various occupant -related noises - such as playground noise, building operations noise and safety equipment noise - will remain a factor for neighboring properties, but the Applicant expects volumes andlor frequency to replicate historical patterns. Playground noise during daytime hours is exempt from FWRC noise regulations. 2) What types and levels of noise would be created by or associated with the project on a short-term or a long-term basis (for example: traffic, construction, operation, other)? Indicate what hours noise would come from the site. Short-term increases in noise levels will result from normal construction activity. The Applicant projects decibel levels associated with this activity will range between 57-89 DBA and be limited to those hours where construction activity is permitted under Federal Way code. Construction noise is typically mitigated through the use of noise attenuation devices installed on heavy equipment. On a long-term, regular basis, the only exception to typical right-of-way traffic noise will be related to any concentration of school bus traffic associated with the educational use. 3) Proposed measures to reduce or control noise impacts, if any: With no exceptional long-term impacts identified at this stage of the development process, and pending evidence to the contrary, no mitigation measures are required or proposed. Significant changes are not expected from the new campus beyond what is currently experienced. 8. Land and Shoreline Use a. What is the current use of the site and adjacent properties? Will the proposal affect current land uses on nearby or adjacent properties? If so, describe. The current use of the site as an educational facility over a number of years has ingratiated the use into the character of the adjacent residential neighborhood. After the construction activity is completed, the newfacility will continue and embellish upon the traditional role of a neighborhood school and continue the District's participation in the growth of Federal Way as a community. b. Has the project site been used as working farmlands or working forest lands? If so, describe. How much agricultural or forest land of long-term commercial significance will be converted to other uses as a result of the proposal, if any? If resource lands have not been designated, how many acres in farmland or forest land tax status will be converted to nonfarm or non -forest use? Bulletin #050 — October 17, 2016 Page 19 of 31 k:lHandoutslEnvironmental Checklist Bulletin FEDERAL WAY ■ PUBLIC SCHOOLS r Federal Way Pubi'ic Schools Educational Service Center (ESCI 33330 80' Avenue South Federal Way WA 98003 (253)945-2000 The site has not been used as either working farmland or forest lands in recent memory. As such, given the intent to maintain an educational use, the Applicant's proposal will obviously not remove any agricultural or forest land of commercial significance from Federal Way's inventory of land resources. 1) Will the proposal affect or be affected by surrounding working farm or forest land normal business operations, such as oversize equipment access, the application of pesticides, tilling, and harvesting? If so, how: None; Not Applicable. c. Describe any structures on the site. The site is currently occupied by an educational facility of approximately 54,803 SF including related accessory structures and site improvements. The existing conditions plan provided with this submittal will indicate specific locations of structures, facilities and site improvements. d. Will any structures be demolished? If so, what? Lnderthe Applicant's proposal, all structures currently existing onsite will be demolished; please refer to the attached demolition logistics plan for additional information. e. What is the current zoning classification of the site? The site is currently toned as R5 7.2 under the provisions of Federal Way's Zoning Code; additional information on applicable bulk regulations is provided in the table below. f,,)RC 19 .13 .,.. ICLASSIFICATION REQUIRED— PROPOSED FRONT INOR-1Hj 5i1 as 3" 1EAST) 50' ' SOFE WEST, $0. 41._1. FF-AR jS? LdTH} 50' VAX '164G HEIGHT: 55' rOR Grols 2_: -_V 1 i?'IdAi 31STANCE FROM AVE RAGE 6-1 R D- G E! Et:ATlrO4 TO IAD POINT =s7 FOR ALL OTHRR KT'AN EAVE 3 RIDGE OF WGHES" STRUCTURES F'R3t-CCIP41, SL.OPFO ROOF NKY. L01 EOVELFRvE 0Y — � 7S"a MAX STRV, T ORES REQUIRED PARKING EXISTING PROPOSED I PEP EMPLOYEE Tf :32 f. What is the current comprehensive plan designation of the site? The site is designated for Single -Family / High Density land use under the provisions of the Federal Way Comprehensive Plan. — October 17, 2016 Page 20 of 31 01-landouts\Environmental Checklist Federal Way Public Schools Educational Service Center (ESC) FEDERAL WAY 33330811 Avenue South PUBLIC SCHOOLS Federal way wa 00 (253)S45-2-2000 g. If applicable, what is the current shoreline master program designation of the site? None; Not Applicable. h. Has any part of the site been classified as a critical area by the city or county? If so, specify. With the site located within the five- and 10-year wellhead capture zone; designated as a critical aquifer recharge area under the provisions of the Growth Management Act (Chapter 36.70A RCW), per FWRC 19.145.490, FWPS will be required to submit a hazardous materials inventory with building and construction permitting. i. Approximately how many people would reside or work in the completed project? There is no residential component associated with this project; when completed, the project is estimated to employ under 100 employees as either administrative staff, teachers andlor related professionals. j. Approximately how many people would the completed project displace? Lacking any residential component, there is no displacement associated with the Applicant's proposal; as part of project design, the District is formulating temporary facilities for the student population. k. Proposed measures to avoid or reduce displacement impacts, if any: The Applicant is the current owner of the subject property. With no residential component, and thus no displacement, no mitigation is required. I. Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if any: The very nature of the Applicant's proposal - demolishing an antiquated educational facility in order to construct a new, modern replacement facility on the same site in approximately the same location - is conducive to ensure compatibility with existing and projected land uses under any comprehensive or neighborhood plan. m. Proposed measures to reduce or control impacts to agricultural and forest lands of long-term commercial significance, if any: None; Not Applicable. 9. Housing a. Approximately how many units would be provided, if any? Indicate whether high, middle, or low-income housing. None; Not Applicable. Under the Applicant's proposal, there is no residential component. b. Approximately how many units, if any, would be eliminated? Indicate whether high-, middle-, or low-income housing. Bulletin #050 — October 17, 2016 Page 21 of 31 k:\HandoutsTrivironmental Checklist y FEDERAL WAY ■ PUBLIC SCHOOLS P Federal Way Public Schools Educational Service Center (ESC) 33330 801 Avenue South Federal Way WA 98003 (253) 945-2000 None; Not Applicable. Under the Applicant's proposal, there is no residential component. c. Proposed measures to reduce or control housing impacts, if any: With no impacts identified at this stage of the development process, and pending evidence to the contrary, no mitigation measures are required or proposed. 10. Aesthetics a. What is the tallest height of any proposed structure(s), not including antennas; what is the principal exterior building material(s) proposed? The Applicant's current proposal calls for a building height of approximately thirty (30) feet at the structure's highest point. The detailed preliminary architectural plans submitted with this application provide a visual and tabular schedule of building materials proposed for use on this facility. b. What views in the immediate vicinity would be altered or obstructed? None; Not Applicable. c. Proposed measures to reduce or control aesthetic impacts, if any: The project is subject to an Administrative Design Review conducted by the City of Federal Way as part of their Process 1111Project Approval process. Under FWRC Chapter 19.115, the project must present overall design continuity through the use of similar elements throughout the project, such as architectural style and features, materials, colors and textures. Building and site design for all institutional uses are guided by FWRC 19.115.100. With no impacts identified at this stage of the development process, and pending design review and/or evidence to the contrary, no mitigation measures are required or proposed. Bulletin #050 — October 17, 2016 Page 22 of 31 k:\Handouts\Environmental Checklist FEDERAL WAY PUBLIC SCHOOLS Federal Way Public Schools Educational Service Center (ESC) 33330 V Avenue South Federal Way 'WA 95003 (253) 945-2000 _ ■ 4` /tl i S f�} T •t - I ti `_? r I PROP 134J11.,{] NG K y 4 �U a � •7 _ d UJ i I ,.r.f- . -3 31 FTH 87 NF ; tr 1 I J iE ADJACEN' RFSl1)FN FAL 3DAIC COMMUNITY DESIGN GUIDELINES DIAGRAM ML Figure 8 - Community Design Guidelines Diagram • Mirror Lake Elementary School 11. Light and Glare a. What type of light or glare will the proposal produce? What time of day would it mainly occur? The Applicant's proposal is not projected to produce any light or glare resulting in spillover onto adjacent properties as currently designed. Exterior lighting fixtures would be required for public safety and onsite security for students, employees and visitors. The Applicant will be providing a site lighting plan/photometric analysis during the building permit process which will document the potential effect of the project's use of focused, shielded exterior lighting fixtures to eliminate glare and/or spillover. b. Could light or glare from the finished project be a safety hazard or interfere with views? Bulletin #050 — October 17, 2016 Page 23 of 31 k:\Handouts\Environmental Checklist y FEDERAL WAY R PUBLIC SCHOOLS N Federal Way Public Schools Educational Service Center (ESC) 33330 8" Avenue South Federal Way WA 98003 (253) 945-2000 To the best of the Applicant's knowledge, as designed, spillover or glare will not result from this project; therefore not creating a safety hazard andlor interfering with any views. c. What existing off -site sources of light or glare may affect your proposal? The only sources likely to be inflicted on the site would come from vehicle headlights on adjacent rights -of -way; an occurrence which could be at least partially addressed through onsite perimeter landscaping. d. Proposed measures to reduce or control light and glare impacts, if any: With no impacts identified at this stage of the development process, and pending evidence to the contrary, no mitigation measures are required orproposed — aside from the Applicant"s commitment to a site lighting planlphotometric analysis and the use of shielded fixtures, as discussed above 12. Recreation a. What designated and informal recreational opportunities are in the immediate vicinity? To the best of f h e Applicant's knowledge, there are no designated or informal recreational opportunities in the immediate vicinity — aside from playgrounds associated with the existing educational facility. b. Would the proposed project displace any existing recreational uses? If so, describe. None; Not Applicable. The Applicant's proposal for a replacement educational facility will eventually include playgrounds andlor exterior recreational facilities to replace those facilities which will be demolished to facilitate the new construction. c. Proposed measures to reduce or control impacts on recreation, including recreation opportunities to be provided by the project or applicant, if any: With no long -tern impacts on recreational opportunities identified at this stage of the project, and pending evidence to the contrary, no mitigation measures are required or proposed. 13. Historic and Cultural Preservation a. Are there any buildings, structures, or sites, located on or near the site that are over 45 years old listed in or eligible for listing in national, state, or local preservation registers ? If so, specifically describe. The existing Mirror Lake Elementary School building was built in 1965; over fifty-three (53) years ago. However, to the best of the Applicant's knowledge, none of the buildings, structures andlor sites located onsite andlor in the immediate vicinity have been catalogued or are considered to be architectural, cultural or historic resources. As part of an ongoing commitmenttothe community, FWPS recognizes the importance of cultural preservation and the District's role in dedicating and preserving space for community use Bulletin #050 — October 17, 2016 Page 24 of 31 k:lHandouts\Environmental Checklist FEDERAL WAY PUBLIC SCHOOLS Federal Way Public Schools Educational Service Center (ESC) 33330 ell Avenue South Federal Way WA 9e003 (253) M5-2000 b. Are there any landmarks, features, or other evidence of Indian or historic use or occupation? This may include human burials or old cemeteries. Are there any material evidence, artifacts, or areas of cultural importance on or near the site? Please list any professional studies conducted at the site to identify such resources. To the best of the Applicant's knowledge, there are no landmarks, features and/or other evidence of Native American or historic use or occupation onsite or in the immediate vicinity. No material evidence, artifacts or areas of cultural importance have been identified. Given the lack of known resources or demonstrated potential for discovery, the Applicant has not retained a professional assessment of the site. If any unanticipated discoveries are made during construction, the Applicant will halt construction and consult trained professionals regarding the identification of such materials and consult with them on methodology and protocols to proceed with construction. c. Describe the methods used to assess the potential impacts to cultural and historic resources on or near the project site. Examples include consultation with tribes and the department of archeology and historic preservation, archaeological surveys, historic maps, GIS data, etc. To the best of the Applicant's knowledge, given the lack of evidence regarding known cultural and/or historic resources onsite or in the immediate vicinity, and the limited potential for future discoveries, additional research was deemed unnecessary d. Proposed measures to avoid, minimize, or compensate for loss, changes to, and disturbance to resources. Please include plans for the above and any permits that may be required. With no identified cultural or historic resources leaving been identified, aside from a commitment involving unanticipated discoveries and having protocols in place should any be uncovered, no additional measures have been implemented, nor are any proposed. Bulletin #050 — October 17, 2016 Page 25 of 31 k:\Handouts\Environmental Checklist y FEDERAL WAY PUBLIC SCHOOLS P 14. Transportation Federal Way Public Schools Educational Service Center (ESC) 33330 80 Avenue South Federal Way WA 98003 (20) 945-2000 a. Identify public streets and highways serving the site or affected geographic area and describe proposed access to the existing street system. Show on site plans, if any. The Applicant originally commissioned a preliminary traffic impact analysis (TIA) in July 2018 to assess existing conditions, and assist in the preparation of a final site plan, pending a final version of the TIA. A final TIA was prepared by Transportation Engineering North West (TENW), Seattle WA, dated November 16, 2018, and has been added to this submittal. Existing primary site access (North and East Driveway) is provided via one enter -only driveway at South 31511, Street onto South 31411, Street to the north and one exit -only driveway accessing South 31511 Street onto glh Avenue South. There is also an existing designated student pick-up 1 drop-off area located at the northwest corner of the property with one enter -only driveway onto 61h Avenue South and one exit -only West Driveway onto South 314t' Street approximately 60 feet west of Th Avenue South between centerlines. Additional east -west roadways in the vicinity include South 312" Street, South 31611 Place and SW 31711, Street, and further south, South 3201h Street; however none of these streets provide direct access to the Mirror Lake site. North south roadways in the area include 40 Avenue South and V Avenue South. Is the site or affected geographic area currently served by public transit? If so, generally describe. If not, what is the approximate distance to the nearest transit stop? To the best of the Applicant's knowledge, the site is not directly accessible to public transit users. The closest public transit stops are located on SW 3201" Street and 81h Avenue South and South 31P Street and 60, Avenue South. c. How many additional parking spaces would the completed project or non -project proposal have? How many would the project or proposal eliminate? The Mirror Lake campus currently provides sixty (60) parking spaces; the Applicant's proposal is to increase parking by adding thirty (30) spaces, for a total of ninety (90) spaces. The new buildings will be located to serve as a buffer between the vehicular access to the sites and the play areas. The automobile drive for parent and visitor traffic at Mirror Lake Elementary School is located off South 314th Street at the north side of the site at a new curb cut aligned with 7th Avenue South. This drop-off loop is developed to accommodate a long on -site queuing area. The bus and service drive is also off South 314th Street utilizing the existing curb cut approximately 250 feet east of 7th Avenue South. d. Will the proposal require any new or improvements to existing roads, streets, pedestrian, bicycle or state transportation facilities, not including driveways? If so, generally describe (indicate whether public or private). The Applicant originally commissioned a preliminary traffic impact analysis (TIA) in July 2018 to assess existing conditions, and assist in the preparation of a final site plan, pending a final version of the TIA. A final TIA was prepared by Transportation Engineering North West (TENW), Seattle WA, dated November 16, 2018, and has been added to this submittal; including a project description, a description of existing transportation conditions within the immediate site vicinity, methodology used to derive the trip generation estimate, trip distribution, traffic operational Bulletin #050 — October 17, 2016 Page 26 of 31 k:\Handouts\Environmental Checklist Federal Way Public Schools Educational Service Center (ESC) FEDERAL WAY 33330 8111 Avenue South PUBLIC SCHOOLS Federal way WA 200 (253) 945 -200 0 analysis of key off -site intersections and site driveway intersections under cumulative impacts, and identification of any transportation mitigation measures to offset traffic impacts The TENW study indicates under existing conditions, all intersections serving Mirror Lake were operating at LOS B or better during the AM peak and LOS C or better, during the PM peak, with volume/capacity ratios (v/c) within the standards for signalized (1.2 v/c) and unsignalized (1.0 v/c) intersections. Please refer to the tables below and the complete TENW study for a more detailed discussion of proposed recommendations. Table 2 2018 Exisfing AAA Peak lWefsection Levels of Service Stuc! Intersection LOS >,la(sec) V!C Ratio unsional&ed Intmeciiom # I - S 3141h St / North Driveway WB Left A 5-8 0.10 02-S 3141h Sr J 81" Ave S E8 B 10.5 0.09 WB B 13.4 0.07 NB Left A 4.1 0.08 #3 - 81'' Ave S / S 301411, $t / South Dr EB 1 8 13-8 0.23 WB B 14.6 005 NB Lett ` A 0.2 0.00 56 Left A 3.4 O.OU 5���'• e, 'Hicfwoy C �pC .^_,rr,riv ,,al" Sr�e i<>' 3ercrt 2c4, frc 2011 Table 3 2018 Exislins PM Peak Intersection levels of Service Studyinlermclior. LOS Delay [sec VIC Ratio Unsianalized fntersections # 1 - 5 314- St J North Driveway WB Left A 3.7 0.04 #2 -S 314,:', St ,+ 811, Ave S EB 8 10A 0.09 WB S 12.4 0.05 NB Left i A 2.8 0.05 #3 - 81h Avc S / 5 30141h $t / South Dr EB B 15,0 0.18 WB C 16.1 0.04 N8 Left A 0J 0-co 58 Left A 0.2 00 Su4rcu: 'Kqc iwuy C']p:c:lyMon6al" S ocv,;kpn I M_ irc+sn—,rlalion Rusuarch Board. 20:0 To the best of the Applicant's knowledge, and pending further permitting/plan review, no added streets will be required. The redesigned site layout modifies and reconfigures existing vehicular access points, site circulation patterns, parking lot layouts, and fire and service access routes. Proposed site access is provided via realigning the existing West Driveway onto South 314th Street to become the south leg of the South 314th Street and 7th Avenue South intersection, and also reconstructing the current primary East Driveway. Both proposed site driveways onto South 314th Street would operate as full access driveways. All other existing site driveways would be Bulletin #050 — October 17, 2016 Page 27 of 31 UHandoutslEnvironmental Checklist FEDERAL WAY PUBLIC SCHOOLS Federal Way Public Schools Educational Service Center (ESC) 33330 81" Avenue South Federal Way WA 98003 (253) 945-2000 removed. Service access extends off of the easterly parking area's bus loop, and fire access to the south side of the school building is provided from the east via a dedicated driveway off of S 315th Street. New circulation patterns for vehicular traffic include a one-way drive aisle for the parent drop-offlpick-up zone. Currently, the vehicular circulation pattern for the bus loading parking area is undefined and will be determined further in the design process. The new site will include two primary parking areas adjacent to the direct north and northeast of the school building, and an additional secondary parking area located directly adjacent to the east of the building. The easternmost main parking lot will include straight parking stalls to accommodate 34 vehicles, while the westernmost parking lot will provide 27 angled parking stalls, two of which will be ADA accessible. The secondary parking area, primarily intended for service and additional staff parking, will consist of 28 straight parking stalls including two ADA accessible parking spots. All proposed on -site parking stalls are designed with wheel stops. Proposed frontage improvements along South 31V Street, 61h Avenue South and South 315t' Street will include standard elements consisting of drive lane, parking lane, planter strip and sidewalk and possible right -of -way dedications; a pedestrian path along the south side of the site will also be required. To meet ADA requirements, ADA ramps will be provided at the curbs for intersections as needed. Construction activity will either repair or replace existing site improvements such as curb, gutter and sidewalk as required by code, and upgrade perimeter landscape to full compliance with code. e. Will the project or proposal use (or occur in the immediate vicinity of) water, rail, or air transportation? If so, generally describe. No; Not Applicable. f. How many vehicular trips per day would be generated by the completed project or proposal? If known, indicate when peak volumes would occur and what percentage of the volume would be trucks (such as commercial and non -passenger vehicles). What data or transportation models were used to make these estimates? The tables below reflect the number of additional trips generated and the revised intersection levels of service calculations, forthe horizon year 2020, based on current Federal Way standards. Mirror Lake Elementary School Trip Generation Summary Time Period in out Total Weekday cia ty 142 142 284 Weekday AM Pea< Hout of Get)efator .53 45 98 Weecday Plat Pedk HoLr of Gene-T ator 23 28 51 Week -,day P".A Peak flour of Adice ent Street Ttaff c.- 12 14 26 Bulletin #050 — October 17, 2016 Page 28 of 31 k:\Handouts\Environmental Checklist FEDERAL WAY PUBLIC SCHOOLS Federal Way Putttic Schools Educational Service Center (ESC) 33330 r Avenue South Federal Way WA 98003 (253) 945-2000 2020 AM Peak Intersection Level of Service Impacts 2020 wittsovt PrvieCf 2= With Project Deby V/C Delay V/C Shidy Intersection tos sac Ratio LOS Isec Ratio -1 - S 314m, St ; Eosf Drivew✓v WB Left A 5.8 0.10 A 8.4 0.14 NB B 10.1 0.04 #2-S314°'St/a"'Ave S EB B 10.7 0.10 B 12.0 0.19 WB 5 137 0.08 B 15,9 0.11 NB Left = A 1.6 0,09 A '-8 0.12 -3 - 8'" Ave S ,' 5 314"' St EB 8 135 0-23 B 14 s 0,75 WB I B 13.8 0.05 8 i4.1 0-05 NB Loft A 7.5 000 A 7.9 0 M SB Leff I A 8.2 0.00 A. 8-3 0.00 z4 -. S 3141' St 171, Ave S i wtlst Or WB Leff A 7-4 0.02 NB A 89 0.03 SB A 9.1 0.01 B 10.0 0.02 2020 PM Peak Intersection Level of Seryce Impacts 2020 Wilhovf Project 2020 With Project Delay VIC Delay V/C StNdtr UrlprpeCtign I.sec1- - Rora LOS SseC1 Ratio _ ._ ^too - 1 - S 314" $t / East Driveway w6 Left ! A 37 01-A A 8.2 006 Na 6 10.I 0.02, =2 - 5 31: d°" St / 8°' Ave S EB f B 10.6 OAC B 11.0 0.14 Y!B 1 B i2.8 01 06 B 13.4 0.06 NO Leff A 7.6 0-05 A 7.7 D-C6 =3-8'Ave S/S314'-St EB I B 14.5 .�,.2P C 15.0 0.19 WB B 14.8 0_04 C 15.4 0 04 rubleftI A 8.2 ^X A 8.2 0.00 58 Left A B.2 r. ` O A. 8.3 0.00 -4-S3;V,5117'"Ave 5/West Or 'rlBlr,ff B 13A 0.06 NS I A 7J 0-06 S3 A 9.0 D 0'. A 8.0 000 - � • :� C.4:• Ty Fa Jf Jr. Jrt -^{-yI zj9 I RO. Per published trip generation rates within the Trip Generation Manual, loth Edition, 2017, Institute of Transportation Engineers (ITE), for Land Use Code 520 - Elementary School, there is no correlative basis to derive estimated changes in vehicle trip generation based on changes in floor area, but better evidence of correlation on daily trips and significantly higher number of studies based on student population. Based on TENW's extensive experience in reviewing K- 12, private schools, and numerous community colleges throughout the Pacific Northwest, the best correlative predictor of increase traffic demand is student enrollment at school institutions. As reflected in the tables/data above, based on a net increase of approximately 150 students, the net increase in vehicle trips on a daily basis is estimated at 284 daily trips, with approximately 98 new trips generated during peak arrival periods (AM Peak Hour of Generator), 51 new trips generated during peak dismissal periods (PM Peak Hour of Generator), and 26 new vehicle trips during the p.m. peak hour of adjacent street traffic (i.e., the worse -case scenario). #050 - October 17, 2016 Page 29 of 31 k:\Handouts\Environmental Checklist Federal Way Public Schools Educational Service Center (ESC) FEDERAL WAY 33330 r Avenue south PUBLIC SCHOOLS Federal Way WA 00 (253) g.43-2-2000 g. Will the proposal interfere with, affect or be affected by the movement of agricultural and forest products on roads or streets in the area? If so, generally describe. No; Not Applicable. h. Proposed measures to reduce or control transportation impacts, if any: With no impacts identified at this stage of the development process, and pending evidence to the contrary, aside from required frontage improvements, no mitigation measures are required or proposed. Should increases in student enrollment related to expanded capacity be realized, traffic impact fees may be assessed at a rate of $2.00 per square foot of gross floor area (GFA) in accordance with current Federal Way code. However the Applicant cautions that as an educational facility with variable enrollment and staffing, traditional trip generation models may not accurately reflect the actual impacts associated with the new elementary school. 15. Public Services a. Would the project result in an increased need for public services (for example: fire protection, police protection, public transit, health care, schools, other)? If so, generally describe. Given the nature of the Applicant's proposal — replacing an outdated educational facility with a modern, updated facility — the Applicant does not project any increase in the demand for public services — either during demolition. construction or future operations. b. Proposed measures to reduce or control direct impacts on public services, if any. With no impacts identified at this stage of the development process, and pending evidence to the contrary, no mitigation measures are required or proposed. 16. Utilities a. Circle utilities cu electricity, natural gas, water, refuse service, telephone, sanitary sew�pseptic system, All required utilities are currently available at the site; including, but not limited to, electricity, natural gas, water and sewer service, refuse and recycling service, telephone, cable television and other communication services. Lakehaven Water and Sewer District will be providing Certificates of Availability for both water and sewer later in the reviewlpermitting process. Negotiations regarding the extent of specific system improvements needed to provide adequate capacity are ongoing and will be concluded via a Developer Extension Agreement executed between FWPS and Lakehaven. Bulletin #050 — October 17, 2016 Page 30 of 31 k:lHandouts%Environmental Checklist C. FEDERAL WAY PUBLIC SCHOOLS Federal Way Public Schools Educational Service Center (ESC) 33330 110 Avenue South Federal Way WA 98003 (253) W4000 The site is currently receiving sewer service from a single connection point (SSCP 1524) along the west property line. The onsite portion of proposed sewer improvements may see new lines extending through the site; connecting to the new school building. Preliminary analysis on the adequacy of existing water lines/service indicate three current points of service connections exist; one for domestic water, a second for irrigation purposes and a third for fire protection services. To meet the fire flow required by South King Fire and Rescue (2,750 GPM) it appears the existing connections to the 8-inch system onsite, at the north, south and west sides of the property. An additional onsite loop may be required onsite as well. Pending further permitting/plan review analysis and the installation of proposed improvements onsite to facilitate new connections and to remove existing infrastructure, capacity of all public and franchise utilities is presumed to be adequate. b. Describe the utilities that are proposed for the project, the utility providing the service, and the general construction activities on the site or in the immediate vicinity which might be needed. Please refer to the civil engineering plans provided with this submittal — particularly the cover sheet where utilities and contacts are typically itemized, and the preliminary utility plans (water, sewer and stonnwater) for specific details on proposed utility connections and the extent of necessary public improvements. SIGNATURE The above answers are true and complete to the best of my knowledge. I understand that the lead agency is relying on them to make its decision. Signature: Name of Signee: Robert McNeill Position and Agency/Organization: Senior Planner, Barghausen Consulting Engineers, Inc. Date Submitted: September 25, 2018; revised January 7, 2019 Bulletin #050 — October 17, 2016 Page 31 of 31 UHandouts\Environmental Checklist CBREIHEERY FEDERAL WAY PUBLIC SCHOOLS 10 d Task ourslkan Task Name Duration smn Finish Prndacevmrs %C—Dlele 2nd Half 1st Hall 2nd Hall 1st Half Ind Hall_ -1st Half 1 660 days MIRROR LQM/14Ai GROVE/W IDWOOD 660 days Mon ill � Fr19/29/20 7% 2 d • 3 463 days Ed Spec Development 63 days Fri 3/9/18 Tue 6/5/18 99% r1 4 a/ 4 0 days Ed Spec Harvest LGV 0 days Mon 3/26/18 Mon 3/26/18 100% A 3/26 5 ✓ 4 0 days Ed Spec Harvest MIR 0 days Tue 3/27/18 Tue 3/27/18 100% 3/27 6 V 4 0 days Ed Spec Harvest WIL 0 days Tue 3/27/18 Tue 3/27/18 100% O 327 7 of 4 1day Draft Programmatic Requirements 1day Fri 3/9/18 Fri 3/9/18 100% B •/ 4 1 day Feasibility Study 1 day Fri 3/16/18 Fri 3/16/18 100% 9 •✓ 1 day Preliminary Cost Model 1 day Fri 5/4/18 Fri 5/4/18 100% 10 1/ 28 days Draft Ed Specs 28 days Wed 3/213/18 Fri 5/4/18 5 100% I I ✓ 4 3 days Ed Spec Recommendations 3 days Mon 5/7/18 Wed 5/9/18 10 100% 12 V 4 5 days Supt Review 5 days Thu 5/10/18 Wed 5/16/18 11 100% 13 4 1 day Supt Recommendation 1 day Thu 5/17/18 Thu 5/17/18 12 100% 1 14 4 0 days Final Ed Specs to School Board 0 days Thu 5/17/18 Thu 5/17/18 13 0% •;'5/17 15 4 0 days Board Approval 0 days Tue 6/5/18 Tue 6/5/1B 14FS+13 days 0% 615 16 4 12 4 230 days Draft Design Standards 130 days Tue 4/24/18 Mon 10/22/18 10%', [8 4 109 days Capital Projects Team Drafts Standards 109 days Tue 4/24/18 Fri 9/21/18 11%' - 19 4 2 wks Supt Review 2 wks Mon 9/24/18 Fri 10/5/18 18 0%, W 4 1 day Supt Recommendation to Board 1 day Mon 10/22/18 Mon 10/22/18 19FS+2 wks 0% 21 IT 0 days Board Approval 0 days Mon 10/22/18 Mon 10/22/18 20 0% 4 1022 z2 4 23 ✓ 4 19 days Design Oversight Committee (DOC) 18 days Mon 3/5/19 Thu 3/29/18 100% r1 24 if 4 0 days DOC Meeting #1 0 days Mon 3/5/18 Mon 3/5/18 100% 0 3/5 25 ✓ v 0 days DOC Meeting #2 0 days Mon 3/12/18 Mon 3/12/18 100% # 3/12 26 we 4 0 days DOC Meeting #3 0 days Mon 3/19/18 Mon 3/19/18 100% O 3/19 27 ✓ 4 0 days DOC Meeting #4 0 days Thu 3/29/18 Thu 3/29118 100% ® 329 29 4 2g ✓ 4 16 days Design Review Committee (DRC) 16 days Mon 4/16/18 Tue 5/8/18 100% n 30 aI 4 0 days DRC Meeting #1 (Complete) 0 days Mon 4/16118 Mon 4/16/18 100% # 4/16 31 V 4 0days DRC Meeting #2 (Complete) 0days Mon 4/30/18 Mon 4/30/18 100% O 4130 32 ✓ y 0 days DRC Meeting #3 (Complete) 0 days Tue 5/8/18 Tue 5/8/18 100% A 5/8 Task -- P jest Summary Manual Task L- Start -only C D%.,A e i Project: ESs draft schedule split .................. lnarr eT-k D—lion-only Fni.h-only ] progrea, Date: Fri 1/4/19 Maesrone O Inactive Milestone Manual Summary M11.p External Tasks alsnwlPnapreaa Summary i—� Inactive Summary Manual Summary r - - - - - - - - - Wrnal Milestone Page 1 - - -- ---- -- ----- - ----- - ----- � - CBREIHEERYI FEDERAL WAY PUBLIC SCHOOLS ID 0 Tnk D.Aion Task Name 'A"ion Start 5nith PtOwAuon %Cmmaletg 2nd11all :1st Hair 7rtgyalf __1st Haa .end Half 1etHalr- 33 4 14 300 days GCCM Approval and Procuremcnt 3W days moo 2/19/18 Fri 411419 _ 39li 35 Vol 15 days Prep PRC Application 15 days Mon 4/2J 18 Fria/20/18 100% at. „J 4 0days Submit Application 0days Fri 4/20/18 Fri 4/20118 3S 100% O 37 q/ 4 0 days PRC Hearing 0 days Thu 5/24/18 Thu 5/24/18 100% si 5/24 16 a/ 4 0days PRC Approval Letter 0days Wed 6/6/18 Wed 6/6/18 37FS+2 wits 100% a 6/6 34 rJ 4 2 days Advertising & RFP Distribution 2 days Thu 5/24/18 Fri 5125/18 37 100% ao aF 4 3 wks GCCM Responses 3 wks Mon 5/28/18 Fri 6/15/18 39 1D0% e t V 4 2 days Interviews 2 days Thu 6/28/18 Fri 6/29/18 40FS+8 days 100% 42 a/ 4 5 days Capital Projects Team Summary and Recommendation 5 days Mon 7/2/18 Fri 7/6/18 41 100% i 43 v/ 4 4 days Notice of Intent to Award 4 days Mon 7/9/18 Thu 7/12/18 42 100% " e/ 4 0 days Board Approval 0 days Tue 7/24/18 Tue 7/24/18 43FS+8 days 100% A 7/24 +5 V % 0 days GCCM Award 0 days Tue 7/24/18 Tue 7/24/18 44 100% q 724 a6 az �3.w. 48 a/ 4 1 day Meeting with Consultants 1 day Tue 5/29/18 Tue 5/29/18 100% 49 a/ 4 33 days Pre -Application Meeting(s) 33 days Wed 5/30/18 Fri?/13/19 48 1009' 50 4 54 days Application Materials & SEPA Checklist Finalized 54 days Mon 7/16/18 Thu 9/27/18 49 22% 5i 4 0 days SEPA Review Application Submitted 0 days Thu 9/27/10 Thu 9/27/18 50 0% 4' 7 52 4 2 days Completeness Determination issued 2 days Fri 9/28/19 Mon 10/1/18 51 0%I 53 4 0 days Notice ofApplicatlon Distributed 0 days Mon 10/1/18 Mon 10/1/18 52 OX 54 4 16 days Comment Period 16 days Tue 10/2/18 Tue 10/23/18 53 5S A 4 10 days Review and Revise SEPA 10 days Tue 12/25/18 Mon 1/7/19 0% ' 56 4 15 days Appeal Period 15 days Tue 1/8/19 Mon 1/28/19 55 0% ; 57 4 0 days Final Completion 0 days Mon 1/28/19 Mon 1/28/19 56 0%; 3�= 58 4 S9 60 V 4 2 wks Certify Gross Square Footage 2 wits Mon 6/4/18 Fri 6/15/18 100% 61 ✓ 4 0 days D3 0 days Mon 9/3/18 Mon 9/3/18 100% � W3 62 4 3 wits D4 (OSPI) 3 wits Mon 9/3/18 Fri 9121/18 61 D%, 63 3 4 0 days D5 0 days Mon 1/7/19 Mon 1/7/19 A 117 54 4 4 wits D6 (OSPI) 4 wits Mon 117/19 Fri 2/1/19 63 0% Task Project Summary Manual Task t' _" 1 Start -only C Deadline Project ESs draft schedule split -. •............... In¢dve Task Duration -my - Pooh-mly ] Progress Date: Fri 1/4/19 Mllestme 4 Inactive Milestme Manual Summary Rollup Wemal Tasks Manuel Progmss Summary Imcdve Summary Manual Summary 1-ti rxtemal Milesta t Page 2 FEDERAL WAY PUBLIC SCHOOLS CBRE I HEERY ID a Tyk Duration Task Name Duration 5ran. Finish nr..ferxawr. %Complete 2nd Hall tst Han 2nd Ha1i 1RHtlr 2nd Hag IT4Hag 65 14 3 days D7 3 days Mon 2/4/19 Wed 2/6/19 64 0% 66 42 wks DB (OSPI) 2 wks Thu 2/7/19 Wed 2/20/19 65 0% r 67 N 4 0 days D9 0 days Fri 3/15/19 Fri 3/15/19 0% + 3/15 6a 4 4 wks D10 (OSPI) 4 wks Fri 3/15/19 Thu 4/11/19 67 0% • 69 4 71 4 23 wks SD Package Development 23 wks Mon 4/11VU Fri 9/21/18 164. 72 k' 4 0 days DRC Meeting LGV 0 days Tue 6/5/18 Tue 6/5/18 100% 9 6/5 T3 y/ 4 0days DRC Meeting WIL/MIR 0days Wed 6/6/18 Wed 6/6/18 100% +6/6 rd we 4 0 days DRC Meeting MIR/LGV/WIL (Concepts) 0 days Tue 6/19/18 Tue 6/19/18 100% + 6/19 75 V 4 0days DOC Meeting MIR/LGV/WIL(Concepts) 0days Mon 6/25/18 Mon 6/25/18 100% +6/25 .M 4 0 days Architect SD Package Submital 0 days Fri 9/21/18 Fri 9/21/18 71 0% 77 4 6 days SD Package Cost Review 6 days Thu 9/13/18 Thu 9/20/18 76FS-7 days 0% 78 4 0 days Supt Review/Approval of SD Package 0 days Fri 9/21/18 Fri 9/21/18 77FS-1 day,76F5 0% 1 9121 19 21 4 0 days Final SO Package for Review/Approval-Board&Submitted to City of Federal W 0 days Tue 9/25/18 Tue 9/25/18 78FS+3 days 0% 9125 80 4 1 day M&O Meeting 1 day Mon 8/20/18 Mon 8/20/18 100% Al 4 1 day M&O Meeting 1 day Tue 8/21/18 Tue 8/21/18 80 100% j 82 ni 4 1 day Pre-Appliation Meeting with Federal Way Permit Center 1 day Thu 8123/18 Thu 8/23/18 100% e3 4 64 4 t a r I 0.s A 4 37 days DO Package Development 37 days Wed 9/26/18 Thu 11/15/18 79 0% 56 - 4 1day User Meeting(M IR) Iday Tue 10/2/18 Tue 10/2/18 78FS+7 days 0% ar 4 1day User Meeting(WIL) 1day Wed 10/3/18 Wed 1013/18 86 0% 60 4 1 day User Meeting (LGV) 1 day Thu 10/4/18 Thu 10/4/18 87 0% 39 4 1 day M&O meeting 1 day Mon 10/15/18 Mon 10/15/18 88F5+6 days D% W 4 1 day DRC (MIR) 1 day Tue 10/16/18 Tue 10/16/18 89 0% - 9t 4 1 day DRC (WIL) 1 day Wed 10/17/18 Wed 10/17/18 90 0% 92 4 1 day DRC (LGV) 1 day Thu 10/18/18 Thu 10/18/18 91 0% 93 4 1 day DOC (MLW) Materials and Finishes 1 day Tue 10/23/18 Tue 10/23/18 92FS+2 days 0% 94 4 13 days VE/LCCA/Pricing 13 days Wed 10/24/18 Fri 11/911B 93 0% 9S 52 4 1 day 100% DO Draft Package 1 day Mon 11/12/18 Mon 11/12/18 94 0% 96 4 1 day 100 %DD Package Submit to Superintendent 1 day Tue 11/13/18 Tue 11/13/18 95 0% Tay% C Project Summary Marwal Task I 7-_ _ -- .- J Start -only E Deadline Project: ESs draft schedule W.t.................. Inactive Task Duration -only ---------- :-' RrIsh-only ] Progress Date: Fri 1/4/19 Mpesinne p Inacrxe Milestone Manual Summary Rollup E#emal Tasks Manual Progress Summary Inactive Summary Manual Summary Eatemal Milestone Page 3 FEDERAL WAY PUBLIC SCHOOLS CBREIHEERY fD 0 hsk Duration Task Name Duration Start Rsrih nrtdemtrF %Complete 2nd Hell 1st Ha11 2nd Half_ 1stHalf 2nd Half $9 Half 0 42 days 100% DD Package for Review (M&O, DOC and DRC) 2 days Wed 11/14/18 Thu IVWIB 96 0% 9! 23 4 0 days Board Review/Approval of DO Package 0 days Tue 11/20/18 Tue 11/20/18 97FS+3 days 0% g 11/20 9s ,. 100 4 HII -�_ 101 44 Wks 90% CD Package (For Bid) 4 wks Wed 11/7/18 Tue 12/4/18 98FS-2 wks 0% U 2 4 11 days Constructability Review 11 days Wed 11/21/19 Wed 12/5118 101FS-2 wks 0% 103 4 11 days 90% CD Cost Estimate 11 days Wed 11/21/18 Wed 12/5/18 101FS-2 wks 0% 1G 1 day 90% CD Pkg Submit to Supt 1 day Thu 12/6/18 Thu 12/6/18 103 0% 105 4 1 day 90% CD Package Submit to M&O 1 day Fri 1217/18 Fri 12/7/18 104 0% 106 4 1 day 90% CD Pkg to DOC/DRC 1 day Mon 12/10/18 Man 12/10/18 105 0% 107 4 1 day 90% CD FWPS Review and Approve 1 day Tue 12/11/18 Tue 12/11/18 106 0% 108 4 3 days 90% CD Package Board Approval 3 days Wed 12/12/18 Fri 12/14/18 107 0% 1051 4 1 day? 100% CD Pkg to Supt 1 day? Mon 2/19/18 Mon 2/19/18 0% 110 4 1 day? 100% CD Pkg to M&O 1 day? Mon 2119/18 Mon 2/19/18 0% 111 4 1 day? 100% CD Pkg to DOC/DRC 1 day? Mon 2/19/18 Mon 2/19/18 0% 112 -r 1 day? 100% CD Pkg FWPS Review and Approve 1 day? Mon 2/19/18 Mon 2/19/18 0%' 113 4 1 day? 100% CD Pkg Board Approval 1 day? Mon 2/19/18 Mon 2/19/18 0% 114 4 115 '!; 115 of 4 0days Presubmittal 0days Wed 6/20/18 Wed 6/20/18 100% p 6/20 117 - 4 4 wks Permit Application (From 90% CD Set) 4 wks Tue 2/5/19 Mon 3/4/19 101FS+8 days 0% ITS 4 1 man Federal Way Permit Center Review 1 man Tue 3/5/19 Mon 4/1/19 117 0% T 119 4 10 days Responses to Review Comments 10 days Tue 4/2/19 Mon 4/15/19 118 0% T 120 4 0days Resubmit to Permit Agency 0days Mon 4/15/19 Mon 4/15/19 119 0% 7411S 121 4 1 man Permit Agency Review 1 man Tue 4/16/19 Mon 5/13/19 120 0% a 122. 4 0 days Permit Issuance 0 days Mon 5/13/19 Mon 5/13/19 121 0%, ®6/13 123 4 124 4 r1 125 4 6 wks Submittals/Release Packages Coordination 6 wks Wed I2/9/18 Tue 1/15/I9 101 0% T. 126 -4 12 days GCCM Bid Packages 12 days Wed 1/16/19 Thu 1/31/19 125,101 0% 1 127 -a 3 wks Bid Reviews/Leveling 3 wks Fri 2/1/19 Thu 2/21/19 126 0% IM 4 5 days MACC Review and Approval 5 days Fri 2122/19 Thu 2/28/19 127 0% Task Project Summary Manual Task t-' _7 - -- `---A Start -only E Deadline t' Project: ESs draft schedule SPlit �. �... •. Inactive Task Duration -only 2.ti.::= Finhh-any ] Progress Date: Fri 1/4/19 Mu.q I. Inactive MlWw, Mamral Summary Rollup &temal Tasks Manual Progress Summary r-------1 Inacflve Summary Manual Summary External MileAone Page 4 CBREIHEERY! FEDERAL WAY PUBLIC SCHOOLS ID (Task Duration Task Name Duration Start Finish predecessors %Co_m_ olete 2nd Hall 1st Hall "110 10 HaK 2nd Hall 11st HaN _ 129 11� 10 days MACC Contract Executed 10 days Fri 3/1/19 Thu 3/14/19 128 0% T 130 3 wks Subcontractor/Supplier Awards 3 wks Fri 3/15/19 Thu 4/4/19 129 0% Z 131 y 132 14 133 -% 2 wks Vacate Lake Grove & W ildwood 2 wks Thu 6/20/19 Wed 7/3/19 0% - 134 14 10 days Mobilization 10 days Thu 7/4/19 Wed 7/17/19 133 0% x 135 14 4wks Demolition (Lake Grove & Wildood) 4wks Thu 7/18/19 Wed 0/14/19 134 0% 136 —4 4 wks Abatement (Lake Grove & Wildocd) 4 wks Thu 7/11/19 Wed 8/7/19 135S5-1 wit 0% 14r 137 9 moos Site/Civil/Grading 9 mans Thu 8/8/19 Wed 4/15/20 136 0% •_ - 136 14 2 mans Foundations 2 mans Thu 10/3/19 Wed 11/27/19 137FS-7 mans 0% 139 1% 2 mans Structural Steel 2 mans Thu 10/31/19 Wed 12/25/19 138FS-1 man 0% A� 140 °4 1.5 mans Concrete 1.5 mans Thu 12/12/19 Wed 1/22/20 139FS-2 wks 0% II� 141 14 1 man Framing 1 man Thu 1/23/20 Wed 2/19/20 140 0% 1 142 4 1 man Envelope & Glazing 1 man Thu 1/23/20 Wed 2/19/20 140 0% r 143 n 2mons MEP Systems 2mons Thu 2/20/20 Wed 4/15120 142 0% TV 144 In 3 mops Interior Construction 3 mans Thu 2/20/20 Wed 5/13/20 141 0% 7 145 14 2 mans Finishes 2 mans Thu 4/30120 Wed 6/24/20 144FS-2 wks 0% 94, 146 14 4wks FF&E 4wks Thu 6/25/20 Wed 7/22/20 145 0% 147 14 4 wks Systems Commissioning 4 wks Thu 4/16/20 Wed 5/13/20 143 0%7 148 14 3 wks Inspections 3 wks Thu 6/25/20 Wed 7/15/20 145 0% 149 4wks Punchlist Activities 4 wks Thu 6/25/20 Wed 7/22/20 145 0% 150 14 0 days Building Substantial Completion 0 days Wed 7/22/20 Wed 7/22/20 149 0% 151 1% 2 days Certificate of Occupancy 2 days Thu 7/16/20 Fri 7/17/20 148 0% 152 11� 4 wks Move and Occupy 4 wks Mon 7/20/20 Fri 8114/20 151 0% 153 a. 6-5 mans Landscaping & Remaining Field Work 6,5 mans Thu 4/16/20 Wed 10/14/20 137 0% 154 -, 0days Site Substantial Completion 0days Wed 10/14/20 Wed 10/14/20 153 0% 155 3 mans Closeout 3 mans Thu 9/17/20 Wed 12/9/20 150,154SS-1 mo. 0% 156 !y 1S7 r 014 15e y 10 days Mobilization 10 days Fri 4/5/19 Thu 4110/19 130 0% 159 2 wks Site Prep/Safety 2 wks Fri 4/12/19 Thu 4/25/19 158FS-5 days 0% Y 160 4 9 mans Site/Civil/Grading 9 mans Fri 4/26/19 Thu 1/2/20 159 0% Task - - P ject Summary Manual Task r 1 Start -only E Deadline Project: ESs draft schedule spirt •-..- Inactive Task Duration -only Finish -only ] Progress Date: Fri 1/4/19 Mlledq O In—N, Milestwe Mamsal Summary Rollup Extemal Tasks Manual Progress Summary r -----1 Inactive Summary Manual Summary r -------1 Extemal Milestone Page 5 1 � � FEDERAL WAY PUBLIC SCHOOLS 10 6 Tack O wka T kN-mr 161 C 2 mons Fourldations 162 Is 2 mons Structural Steel 163 14 1.5 mons Concrete 164 14 1 mon Framing 165 "IS 1 mon Envelope & Glazing 166 4 2mons MEPSystems 167 IS 3 mons Interior Construction 160 "4 2mons Finishes 169 4 4 wks FF&E 170 04 4wks Systems Commissioning 171 *4 3 wks Inspections 172 Is 4 wks Punchlist Activities 173 •;© 4 2 wks Vacale Exuvng Mirror take 174 4 0 days Building Substantial Completion 175 4 2days Certilcate of Occupancy 176 14 4 wits Move and Occupy 177 14 4wks Demolition ofold Mirror Lake 178 19 4 wks Abatement Old Mirror lake Site 179 3 9 mons Landscaping& Remaining Field Work 180 14 0 days Site Substantial Completion Tat Iq 3 mans Closeout CBREIHEERY' I NINO, r.rdeceasnrs %C.%pA.% lntliUR iN Nr'l .7�dMaft ist Hall __2nd HaN 19 Hal( 2 mons Fri 6/x 1/19 Thu a/151:9 160F5-7 mans 0% 111M 2 mons Fri 7/19/19 Thu 9/12/19 161F5-1 mon 0% 1.5 mons Fri 8/30/19 Thu 10/10/19 162FS-2 wks 0% 9 1 man Fri 10/11/19 Thu 11/7/19 163 0%� 1 man Fri 11/8/19 Thu 12/5/19 164 0% 2 mons Fri 12/6119 Thu 1/30/20 165 0% i 3 mons Fri 01/20 Thu 4/23/20 166 0% 2 mons Fri 1/17/20 Thu 3/12/20 166FS-2 wks 0% 4 wks Fri 3113/20 Thu 4/9/20 168 0%' 1 4 wks Fri 4/10/20 Thu 5/7/20 169 IN 3 wks Fri 5/8/20 Thu 5/29/20 170 0% 4 wks Fri 5/29/20 Thu 6/25/20 171 0% 2 wks Fri 6/19/20 Thu 7/2/20 0%. 0 days Thu 6/25/20 Thu 6/25/20 172 0% 2 days Fri 6/26/20 Mon 6/29/20 174 0%! 4 wks Tue 6/30/20 Mon 7/27/20 175 0% 4 wks Fri 7/3/20 Thu 7/30/20 173 01Ai 4 wks Fri 6/26/20 Thu 7/23/20 177SS-1 wk 0%! 9 mons Fri 1/3/20 Thu 9/10120 160 0%!- 0 days Thu 9/10/20 Thu 9/10/20 179 0%. 3 mons Fri 8/14/20 Thu 11/5/20 174,18o5S1 moi 0% Task - P jecr Summary Manual Task Start -only C DeadMe + PMOCL as draft Schldule sprn Inactive Task Duration-mly Finish -only 7 Progress Date: Fri 1/4/19 641eatone O Inactive Milestone Manual Summary Rdlup E,t l Tasks Manual Progress Summary t�1 I —&a, Summary Mammal Summary r ---1 Eatemal Milasmra Page 6 - - - ---- - -- �._ CBREIHE U; h FEDERAL WAY PUBLIC SCHOOLS tad Half_. 111 H.M - 2nd Half - issHaH 2nd H;I( -- lst-HaL 2nd Haig 1stHaH— try Half lstMalf. _ 2nd Hylr-_ ltMp[_ -,2MJW _ _1at.H.N _ 2nd.Half_-WHaLI- 2nd Half- WHO[ _2n4H.N _ lfl wf hid Msu 1"".8 2nd H;H lst Half_ 2{ Task Pmjectsummary Project ESS draft schedule sort ............. lnecuve Task Date: Fri 1/4/19 MYeslme ♦ Inactive Mtiestme Summary Inactive Summary M.-al Task t 1 start -only Duration-mH F..M-enly Manual Summary llollup Pxtemal Tasks Manual Summary Pxtemal W.I.M. Page 7 C oaadnne + ] Prog— Manual Progress — - - - -- - C13REIHFMW FEDERAL WAY PUBLIC SCHOOLS 2nd Half_ lit HaN 7MHatr tq MIN Ind HsM _HeN la"All 2nd Half 1£LHall 2nd Half _ lat_y47 2-d HaN 1stHaN Zed Hall -1st Half_ 2nd}]alL .lst Half .,2nd Half-- 1st Half 2_nd HaN ]st Hall 2nd_Hal _ls]_H-a11 7st_ _.2nd Ha1[_ Task ft*tsummary Manual Task Stag-ony z Deadhne 4 Project ESs draft schedule sofa .................. 1-0. Task Dncar--ly Finish -only I Pm9mss — Date. Ffi 1/4/19 PA knla sa s Inactive Mik m, p maw Mam al Summary edluo fxtemal Tasks MamielPrg—— Summary r -----1 Inactive Summary Manuel Summary r1 Pxti-al Milestone Page B FEDERAL WAY PUBLIC SCHOOLS 2�Ha11__'1tS HaH _- 2n_d Hall__�15t Half _2nd Haa _ 1st Hall. '_2nd.H•If _ lllataa 2,H HaH-__1st IHR ?.d ll.0 _7_£t HaN __bM.Nall '1st Nall_ 2nd Half 1s,LHal1-- And_Half__ 1st -Half _!2nd Hafl1sLHalf- 2nd LWK 1st Hall 2nctHal TO u.N , Task Project5ummary Manual Task I skirt -only L fleadhne Project ESs draft schedule Spin .... lnacdw Task Dunstkm-only Flnisl.only ] Pnsg— — Date:Fri1/4/19 Mllestane ♦ InaoW Milestone Manual Summary Rollup Brmmal Tasks Manual Progress — Summary ��1 Inactlae Summary Manual Summary r -------- — I F„temal Milestone Page B CBREIHEERY FEDERAL WAY PUBLIC SCHOOLS 2M11alf latyaN Mdlfaff 1st Half 2nd H•If._ 1st Fie _2rOHaff lst_Half_ 2WBalf 19.Haff 2nd HaN_'19 Half _2,qJIiff 1st Haff _ 2tkstyaff _ 1st HaH _2nd HRH isilialf_ 2nd_HBII IA Hall '2m0Harf 1stHalf. _ 2nd HaN _1st Half Project ESs draft schedule Date: Fri 1/4/19 Task Pmject Summary SPIR ..... Inaceee Task M.labne • 1—d. Mlestone Summary Inacfi-Summary Manual Task I r Start-aaly C Duraynxronly Finish -only _ Mamsal SummaryRolksp Exlemal Tasks Memsal Summary ExternalMll.— Page B Deadline Programs Marmaf Progress -- — _ -- CBREIHEERY FEDERAL WAY PUBLIC SCHOOLS 2qd Half_- 7stNaH 2nd Hall _ tst X.It Jn_d_ytf 1s[H•II__ 2nd Hea _ 7slyalf '2,d Ha1h- --1st H•N_ 2nd Hall - 15t HaR Nd Has - 1g Hal(__ 29dk7?B-tit_H•H 2,d}isN_ 1st Hall_ _2nd_Hal1_ ls[H.H _'2ndyaN_ 1st.H•X _ 2ad_yaK WHO �2 A k ZM2 tilt Task Pmjectsummary M.nu.l T.* I l start-ony C Deadlitm 4 Project: ESs draft schedule split -- - Inactive T.sk Damian-ony Rnish-ony ] P.9— — Date. FH1/4/19 M,ksmne ♦ InactiveW tme M—al Summary Rolkip Exivmal Tasks Manual Pcagrcss summary Inactive Summary Manu.l Summary Ext l Milestone - Page B - - - CBREIHEEKYi FEDERAL WAY PUBLIC SCHOOLS 2rd Half _ 1FtH+If __2nd—HaH,_. 1s1 He,s[Ha__2nd HaiHX _'2nda_ lsHa,1staf,1sHf Zd , L2naH_1,SIHi( _ _ •.__.2nd Ha(f :1stH+ll _12rid Half _.. 1st Hay a T 6 Task Proj em E5s draft schedule spirt Date: Fri 1/4/19 Milestone Summary Pro*tSummary •••••••• Inactive Task ♦ Inactive tiilestane r — — — 1 Inactive Summary Marmal Task r t Start -only Dumtian-mly Fnish-only Manual Summary Rollup Ei al Tasks M.-al Summary r1 Fm—I Milestone Page 9 C D-dime ] Progress ManualPrag— 1%RECEIVED MASTER LAND USE APPLICATION DEPARTMENT OF COMMUNITY DEVELOPMENT 4::�LJAN 10 2019 33325 8"' Avenue South CITY OF Federal Way, WA 98003-6325 Federal Way crrr OF FEI)EiaAL WAY 253-835-2607; Fax deralw5-2609 OOMMUNCTY DEVELOPMw.vw.citvol'l'eeral�yay.com F�Cf APPLICATION NO(S) 0 — f V v ` 10 VL � Date O 1 Project Name Mirror Lake Elementary School Property Address/Location 625 South 314th Street / Federal Way. WA 98003 Parcel Number(s) 0821049035 Project Description PLEASE PRINT Demolish & Replace an existing Elementary School with a newly constructed Elementary School. Type of Permit Required Annexation Binding Site Plan Boundary Line Adjustment Comp Plan/Rezone Land Surface Modification Lot Line Elimination Preapplication Conference Process I (Director's Approval) Process II (Site Plan Review) _X_Process III (Project Approval) Process IV (Hearing Examiner's Decision) Process V (Quasi -Judicial Rezone) Process VI SEPA w/Project SEPA Only Shoreline: Variance/Conditional Use Short Subdivision Subdivision Variance: Commercial/Residential Required Information Singgle Family-1 Unit/7,200 SF R572 Zoning Designation Single ami y ow ensi Comprehensive plan Designation $3,215,200 Value of Existing Improvements $27,028500 Value of Proposed Improvements International Building Code (IBC): Groups E, B, A-3 Occupancy Type Type II-B Construction Type Applicant Name: Federal Way Public Schools Address:1211 South 332nd Street City/State:Federal Way / WA Zip: 98003 Phone: 253-945-5930 Fax:253-945-5959 1✓mail:mbenzie fwps.or Signature - Agent (if different than Applicant) Name: CBRE I Heery Address: 1420 Fifth Avenue, Suite 1700 City/State: Seattle / WA Zip: 98101 Phone: 206-835-0473 Fax: None Email: rys.a Signature. ,4a Owner Name: Federal Way Public Schools Address: 1211 South 332nd Street City/State: Federal Way / WA Zip:98003 Phone: 253-945-5930 Fax:253-945-5959 Email: mbenzienCrr},fwps.orR Bulletin #003 — January 1, 2011 Page 1 of 1 k:\Handouts\Master Land Use Application -160 `i 60 - Co PUHLIC WORKS DRPARTNIF,NT 0A 1 1 33325 8" Ave 7 nue South Fcdcral Wny WA 98003-6325 253-835-2700;Fax 253-835-2709 Ci i Y OF FEDERAL WAYr�„tI_���Ztr ll,._i�.�ssul CONi i,N TY DEVELOPMENT 2019 TRAFFIC CONCURRENCY REVIEW APPLICATION APPLICATIUNNO(s) ` ZOO/'?42 _ Date 01-14-19 Project Name Mirror Lake Elementary School Replacement Property Address/Location 625 South 314t11_Street, Federal Wav, VISA 98003 Parcel Number(s) 0821049035 Project Description Demolish & Replace an Existing Elementary School with a Newly Constructed _ElementnSchool_ _ R Yl(VYISKt Y VWNL•,K Name: Federal Way Public Schools Phone/Fax. Address: 1211 South 332nd Street f City/State/Zip: Federal Way, WA 98003 Email: t Signature: Cell; (253) 394-8524 APPf.ICANT i If different than SAvnrrl Name: Phone/Fax: Address: T City/State/Zip Email-, Cell; Signature; Type of Development permit to be applied for: ❑ Commercial ❑ Multifamily (MF) ❑ Subdivision ❑ Short Subdivision ❑ Single Family (SF) ❑ Nonc (Feasibility only) ❑ Other Elementary School Approval For City to perform Concurrency analysis: x 1. Yes ❑ No If NO: Applicant's Traffic Engineer must perform Concurrency analysis consistent with City procedures; however, the application fee remains the same. , V-4Iq 0 A r•,•il R Mulia lu(m rrcrdunUlV (:uceumnvy AI>[rlivmiun Hce 1au31117 r4s 51L-t-,A . pt4lclt In Disc Required information— Application is incomplete and will be returned it not filled out, Gross Square Feet (Commercial) Existing Proposed Number of Dwelling i hits 11. tid,tinu PrllposO Number of Employees F'XiNlill- • _ llatllt Wit Parcel size (acres or square footage) Existing Proposed Existing School Building Size: 54,803SF Proposed School Building Size: 63.590 SF Has the property previously been reviewed for concurrency? Ye5w Nil_x __-_.. Tf yes, date of original application Concurrency Permit No: Is this an amendment to an existing Concurrency Certificate'? Yes No Will the project be phased? Development Build -Out Year 2020 Note: Commercial subdi dons and other prujecis coustrucled in phases shall be evaluated ror concurrency as each phase is submitted to r a pplic abl c development p e rnu ts. . Once Ihecancurrcncy test rexA ham been dciermined, any changes to the development project require nddIlia aaI review will be billed on an hourly basis. 26 PM Trips during Peok Hour Estimated Number of New Trip Generated by Project per Pre -application Summary: _of Adjacent Street Trofnc If the applicant's engineer has prepared a trip generation analysis, please provide the following. if not, staff will calculate the trip generation based on the above infonnatiun, Existing PM Peak Tiour Trips (if applicable) Proposed PM Peak Hour Trips Net New PM Peak Hour Trips See apolicanl's traffic sludv. CON[,ijR[tgNCY TEST rXPIk.1'1'l0N (F'WItU 11.91t1 A Concurrency Reserve Certificate (CRC) is valid until the underlying development permit expires, is withdrawn or cancelled, whichever occurs first. In that case, a new concurrency application would be required. • A Concurrency Reserve Certificate is valid only for the specific development approval consistent with the development parameters and City file number within the CRC issued. + A Concurrency Reserve Certificate (CRC) runs with the land, and cannot be Iransferred to a different parcel_ T have read the above information regarding expiration deadlines. T further understand that issuance of a concurrency certificate is not agg'u. anrce that the City will issue a development permit or building permit. 'Pro peityOwn I- gent'Si} J IN Wig Ferrol Submittal: The following items are required for all applications: ❑ Completed and signed Concurrency Application ❑ Concurrency Application Fee paid (Sec Below) Net Nvw Ph 11'cuk I toter Trip Lrax 1111111 IF) 1 1 • 5tl S I • 51111 0matm shall '40+ T51.a:17�J.nfl Aplilicailon leer liRl F_4TN Mcd'ni hrm mnionlfW(usumnry �ppLc,aion Pcv to112019doc 91 f b fj S 9 3 E a Fi' I f 9 1 0 I IJ C CITY OF PUBLIC WORKs DEPARTMENT 33325 8`h Avenue South Federal Way Federal Way Fax 98003-6325 253-835-2700;Fax 253-835-2709 Centered on Opportunity www.ciWffedemlway.com CAPACITYRESERVE CERTIFICATE ,CRC) This CONCURRENCY DETERMINATION is made this 20 day of Mach 2019 by the City of Federal Way (COFW), a political subdivision of the State of Washington (hereinafter called the "City") WHEREAS, the developer intends to develop the property described as rVfirror Lake Elementary School reviewed under City file CN Number(s)19-100189-00-CN (hereinafter called the "development"); and WHEREAS, RCW 36.70A requires that the City adopt and enforce ordinances which prohibit development approval if the development causes the level of service on a transportation facility to decline below the standards adopted in the comprehensive plan, unless transportation improvements or strategies to accommodate the impacts of the development are made concurrent with the development; and WHEREAS, the City adopted its comprehensive plan in November 1995; and WHEREAS, Chapter 19 of the COFW Revised Code was amended by the creation of Chapter 19.90 Division III on June 10, 2006 by Ordinance 06-525 effective January 1, 2007; and NOW, THEREFORE, a concurrency certificate is issued for the development of 63,590 SF Elementary School based on the facts and conditions set forth herein. Development Parameters This CONCURRENCY DETERMINATION is based on the following development: Development type: Elementary School Development size: 63,590 SF Property address: 625 South 3141h Street Federal Way, WA 98003 Parcel No. (s): 082104-9035 Number of New PM Peak Hour Vehicles Trips Generated: 26 Validity of Concurrency Determination This CAPACITY RESERVE CERTIFICATE is valid only for the specific development approval consistent with the development parameters and the City file number contained within this certificate. If the development is changed, expired, cancelled or withdrawn, it will be subjected to reevaluation for concurrency purposes. Terms of the Capacity Reserve Certificate This CAPACITY RESERVE CERTIFICATE is valid until the underlying development permit expires, is withdrawn or cancelled, whichever occurs first. Approved By: Date: Z 9' M a r- ?,do 12 Printed Name: Richard A. Perez, P.E Title: City Traffic Engineer CITY OF Federal Wa Centered on Opportunity APPLICATION (NO(S): Project Name Property Address/Location Parcel Number(s) Project Description CITYWIDE CONCURRENCY TEST SUMMARY 19-100189-CN Mirror Lake Elementary School 625 South 314th St 082104-9035 Public Works Department 33325 8t1i Avenue South Federal Way WA 98003-6325 253-835-2700:Fax 253-835-2609 www.ci tyo ffederalway.co m Date: March 8, 2019 Demolish 54,800 SF existing elements school and construct 63,590 SF new school Based on the traffic distribution, intersections impacted by at least one or more evening peak hour trips were analyzed for meeting concurrency LOS standards (v/c less than 1.2 for signalized and 1.0 for unsignalized) consistent with the City of Federal Way Transportation Concurrency Management code as described in FWRC 19:90. Table 1 below shows a summary of the LOS analysis for the study intersections with V/C ratio above 0.70 at the anticipated build -out year. Where a performance measure does not apply to the entire intersection, the table shows the measure for the worst movement of the intersection. For all other study intersections and detailed LOS calculation, please contact the Public Works Traffic Division. Note: Arty chap ges to the devela p meat proiccI that rea wire additional review will be billed on an houriv basis. Table 1: Concurrency Level of Service (LOS) Intersection 2020 Background Conditions LOS Standard Met' 2020 With Project LOS Conditions t Standard V/C Met" 1D Zone North -South Street East-West Street V/C 1050 1056Military 1651 - 2051 2546 3028 _ _ 3046 3060 3061 3640 _ Pacific Hwy S Rd S -Pacific Hwy S ; Pacific Hw S N Av S 21 Av SW E8 Av S 32 Av S Weyerhaeuser W S t'- 1 Av S S 288 St S 288 St _----- S Dash Point Rd --- - - S 304 St S 312 St _ 'SW 320 St S 320 St S 320 St S 320 St SW 330 St i 0.88 ti' 0.89 y, - 0.78 0.8 0.75 0.76 1: - - Y Y Y . Y ---i --___ 0.78 - 0.80 0.75 Y' 0.76 X --µ0.8 0.83 0.86 W 1.01 .]_ µ .Y µ - 3 � -0.87 -.Y 1.01 �0,83 T 0.82 0.72 0.78 iT 1 - 0.83 0.82� _- 0.72 0.78 - 0.84 0.72 Y' - 4- _ - ?_ 1_ ' t -- = Y ti;._. Wei 3650 Pacific_Hwv S IS 330 St_ 3858_-{ erhaeuser WX S lS 336 St 4043 j ;1 Wy S .. S 336 St 0.84 ,- ]-- �- 4046 -�� j 9 Av S -� ._ -- IS 336 St -- 0.72� 1 - 0.99 1' 4050 4052� 4160 4441-1 __ 1k Pacific H S l20 Av S _-_-_---- -_'yS ; 33 PIS - - ------ -Weyerhaeuser 1 Pi S- IS 336 St 336 St Wy S I 1 W -- 0.99 -0.88 0.88 1- 0.78 0.81 �0.71 --�Y - ~ Y. - 0.81 0.7140_J 60 L 4846 IWeyerhaeuser�SRISWBRamPs 1 Av S I9 Av S 348 St S i S 348 St _ - - -_0.79 _0.80 0.83 - 0.98 0.84 1.01 _0.89 - 0.74 0.75_ - 1_ - - l ~ �Y - �Y Y _- �l_ --1 Y Y - 0.79 Y - ;i _ 0.81 - ____0.83 0.98 ] -0.84 _1 _ -� 1.01 1 _-0.89 Y : ,•.• -0.70 4848 Pacific HwyS - S 348 St 4850- 116-Av-»S-- SR 18 SOSO�j 5240 5246� 5251 6340 1 Enchal nted�Pkw S �- 11_Av S _ ___ Pa------Hw S ----- ; Enchanted Pkwy S !Pacific H S S 352_St S 356 St S 356 St - S 356 St S 373 St - - 1" -0.75 1 All intersections met the City of Federal Way LOS standards: 'Concurrency Test Result: If "Fail", identify intersections and possible mitigation: Yes Nor ytriif 1 i 4c �ii l �i; Passed: Fail: Test performed by: Snrady Long _ 72L s Date Yes L:\DEPT\PW\TRA\Concurrency\2019 CN Project\19-1001894CN_Mirror LaKe bch0o1\LUb bummary_mirror LK tiemenrary ii 1 CITY OF Federal Way Centered o f Opportunity APPLICATION (NO(S): Project Name Property Address/Location Parcel Number(s) Project Description Public Works Department CITY CENTER CONCURRENCY TEST SUMMARY 33325 Sth Avenue South Federal Way WA 98003-6325 253-835-2700;Fax 253-835-2609 www.c i tyoffederalway.com 19-100189-CN Date: March 8, 2019 Mirror Lake Elementary School 625 South 314th St 082104-9035 Demolish 54,800 SF existing elementary school and construct 63,590 SF new sch Based on the traffic distribution, intersections impacted by at least one or more evening peak hour trips were analyzed For meeting concurrency LOS standards (v/c less than 1.1) consistent with the City of Federal Way Transportation Concurrency Management code as described in FWRC 19.90. Table 1 below shows a summary of the LOS analysis for the study intersections with V/C ratio at the anticipated build -out year. For all other study intersections and detailed LOS calculation, please contact the Public Works Traffic Division. Note: And• chanV_es to the development project that require additional review will be billed on an hourly hash; Table 1: City Center Zone Concurrency Level of Service (LOS) Intersection 2020 Background LOS 2020 With Project LOS Conditions Standard Met? Conditions Standard Met? ID Zone iNorth-South Street ; East-West Street V/C V/C 2549 ! CC_ €14 Av S IS 312 St 0.49 0.49 0.80 2550 -T CC Pacific H S 1 S 312 St - - 0.80 .__ _ 2552 CC 20 Av S S 312 St 0.32 0.32 -- 0.43 2554 I CC 23 Av S S 312 St 0.43 2652 CC 120 Av S S 314 St 0.24 --_F .. .I ._ ._ _.------------ --------------------- ---_----- _0.24 w 2654 1 CC 123 Av S IS 314 St 0.20 0.21 2750 CC Pacific Hw S -� S 316 St� _- _ 0.74 0.74 2752 1 CC 120 Av S S 316 St 0.45 - W - -- --0.45 ---- 0.32 2754 CC 123 Av S IS 316 St 0.32 2855 t CC =23 Av S S 317 St 0.78 0.78 3048-L_CC l l Pl S IS 320 St 0.83 - -- -- 0.83 - 0.84 - .3050 f Pacific Hwy S IS 320 St 0.84 _CC .3052 1 CC 120 Av S - IS 320 St 0.83 0.83 3055 ! CC 23 Av S IS 320 St 0.91 0.99 -- 0.76 305. I CC Gatewa Blvd S� IS 320 St 0.76 3057_�_CC 1-5 SB Ramer IS 320 St 0.84 0.85 .3255 CC -� 23rd Ave S _4. 322nd St �-- 0.28 -- 0.28 __ 3348 CC l l Pl S S 324 St 0.33 0.33 3350 CC Pacific Hwy S S 324 St 0.83 _ 0.83 1. CC Average v/c Ratio = 0.59 1" 0.60 Y All signalized City Center intersections met LOS standards: Test Result: If "Fail", identify intersections and possible mitigation: For SIX Use Only: Yes Yes Passed: Fail: Concurrency Test perfonned by: Sarady Long _T5D-- Date L:\DEPT\PW\TRA\Concurrency\2019 CN Project\19-100189-CN_Mirror Lake School\LOS Summary_Mirror Lk Elementary 1/1 f TENW Transportation Engineering NorthWest MEMORANDUM RECEIVED JAN 10 2019 DATE: November 16, 2018 MY OF FEDERAL yl,.Iy TO: Robert Evans, PE, Capital Projects Manager C0MP,rlLlitEliY DEVELOPMENT CC: Casey Moore, Project Manager, FWPS Support Services Center FROM: Michael Read, PE, Principal, TENW SUBJECT: Federal Way School District - Response to Comments Lake Grove, Mirror Lake, and Wildwood Elementary School TENW Proiect No. 3623 This memorandum provides a response to the October 23, 2018 letter titled "Responses to Environmental Checklists for Potentially Proposed Federal Way Elementary Schools" from Robert "Doc" Hansen, Planning Manager for the City of Federal Way. LAKE GROVE ELEMENTARY SCHOOL The following traffic comments by Soma Chattopadhyay related to Lake Grove Elementary School of the Federal Way School District have been addressed: 1. City's Adopted LOS Standard 2. Size Clarification 3. Traffic Impact Fee Calculation 4. Queuing Analysis and Bus Turning Diagram 5. Sight Distance Issues - Realign eastern driveway with 3rd Ave SW or 2nd Ave SW 6. School Safe Walk Route Response 1 : The City's adopted LOS standard is 1.2 for signalized intersections and 1.0 for unsignalized intersections. All study intersections and site driveway intersections meet the City's adopted LOS standards. Response 2: The existing gross hoar area of 5 1,238 square feet with a 450-student capacity is correctly identified in the TIA. The 450 students is the capacity at the elementary school and is therefore, a conservative estimate. v-*5 P- Response 3: Per the traffic impact fee rate of $2.00 per square foot for an elementary school, the proposed development would need to provide a fee of $24,704.00 based on a net increase of Transportation Planning I Design I Traffic Impact & Operations PO Box 65254, Seattle, WA 98155 1 Office (206) 361-7333 �L Federal Way School District - Lake Grove Elementary School Response to Comments 12,352 square feet (51,238 square feet existing and 63,590 square feet future). The TIA has been updated per this correction. Response 4: Please see the "Queuing Analysis and Student Pick-Up/Drop-Off Loading Areas" section in the updated TIA. Please note that: School bus turning radiuses at site driveways and adjacent intersections for Lake Grove Elementary School will be provided by other Team members. Response 5: The sight distance identified in the Existing Conditions memo at Intersection #5 — SW 308lh Street / East Driveway is based on a 260-foot minimum sight distance to the east. Per the photo provided in Attachment A, driver entering sight distance to the east is a maximum of 300 feet. Therefore, sight distance is met for a 25 mph design speed on SW 308ih Street at the East Driveway. Response 6: Please see the "School Safe Walk Route" section in the updated TIA. MIRROR LAKE ELEMENTARY SCHOOL The following traffic comments by Sarady Long related to Mirror Lake Elementary School of the Federal Way School District have been addressed: 1 . TIA Engineering Stamp 2. City's Adopted LOS Standard 3. School Safe Walk Route, Queuing Analysis, School Zone Flasher Enhancement, School Bus Turning Radius at Driveways and Adjacent Street Intersections 4. Neighborhood Impacts Related to Drop Off and Loading Locations 5. Recommended Improvements in TIA and New School Layout Conflicts 6. No Parking Signs on Adjacent Neighborhood Streets 7. Update TIA per Above Comments SEPA Environmental Checklist - Notice of Consultation SEPA Environmental Checklist of 62,550 SF is not consistent with project description of 60,322 SF in SEPA Checklist. 7. Checklist Item # 14. Transportation (b) - Transit Stops update 8. Checklist Item #14. Transportation (d) - Pedestrian path and roadway improvements including right-of-way dedication. On -site improvements for safe walking route. 9. Checklist Item #14. Transportation (f) - Trip generation clarification. 10. Checklist Item # 14. Transportation (h) — Traffic impact fee assessment. Response 1: The TIA has been updated with an engineering stamp by Michael Read, PE. epTENW November 16, 18 Page 2 Federal Way School District - Lake Grove Elementary School Response to Comments Response 2: The City's adopted LOS standard is 1.2 for signalized intersections and 1 .0 for unsignalized intersections. All study intersections and site driveway intersections meet the City's adopted LOS standards. Response 3: Please see the "School Safe Walk Route" section in the updated TIA. Please see the "Queuing Analysis and Student Pick-Up/Drop-Off Loading Areas" section in the updated TIA. A school zone flasher enhancement should be provided on 8th Avenue S and SW 308th Street. This has been added in the "School Safe Walk Route" section in the updated TIA. Please note that: School bus turning radiuses at site driveways and adjacent intersections for Lake Grove Elementary School will be provided by other Team members. Response 4: Please see the "Queuing Analysis and Student Pick-Up/Drop-Off Loading Areas" section in the updated TIA. Response 5: The new school layout was created after the Existing Conditions memorandum was completed. Figure 4 in the Existing Conditions memorandum document recommendations only. Recommendations do not necessarily always have to be implemented when creating the new school layout. The new school layout (site plan) should be used when analyzing traffic impacts. Response 6: Figure 4 in the Existing Conditions memorandum document recommendations only. Recommendations do not necessarily always have to be implemented. However, to accommodate the City, Figure 4 of the Existing Conditions memorandum for Mirror Lake Elementary School has been updated to remove the "no parking signs" and is provided as Attachment B. Response 7: The TIA has been updated to address the City's comments above. Response 8: The checklist has been updated to reflect closest transit stop locations. Response 9: The checklist has been updated to reflect pedestrian path and roadways improvements and safe walk route. Response 10: The trip generation is correct, and is based on a conservative account as current school buildings have a capacity of 450 students, and the new buildings will be sized for 600 students. Response 1 1 : The checklist has been updated. Per the traffic impact fee rate of $2.00 per square foot for an elementary school, the proposed development would need to provide a fee of $17,574.00 based on a net increase of 8,787 square feet l54,803 square feet existing and 63,590 square feet future). The TIA has been updated per this correction. GagTEN W NovembePage 3 Federal Way School District - Lake Grove Elementary School Response to Comments WILDWOOD ELEMENTARY SCHOOL The following traffic comments by Erik Preston related to Wildwood Elementary School of the Federal Way School District have been addressed: 1 . Checklist Item #14. Transportation (b) -Transit Stops update 2. Checklist Item #14. Transportation (d) - Pedestrian path and roadway improvements including right-of-way dedication. On -site improvements for safe walking route. 3. Checklist Item #14. Transportation (f) -Trip generation. 4. Checklist Item #14. Transportation (h) —Traffic impact fee assessment. 5. TIA Engineering Stamp 6. City's Adopted LOS Standard 7. Daily Traffic Volumes Clarification 8. Safe Walk Route 9. Neighborhood Impacts Related to Drop Off and Loading Locations 10. No Parking Signs on Adjacent Neighborhood Streets 11. Speed Bumps — Mini -Roundabout Installation 12. Update TIA per Above Comments 13. Traffic Impact Fee Calculation Response 1: The checklist has been updated to reflect closest transit stop locations. Response 2: The checklist has been updated with correct street names for S 300th Street and classification with Type-U applicable roadway improvements. The checklist has also been updated with maintenance and improvements to the pedestrian paths on the south side of the property. Response 3: The trip generation is correct, and is based on a conservative account as current school buildings have a capacity of 450 students, and the new buildings will be sized for 600 students. The l0ih Edition of the ITE Trip Generation Manual for Land Use 520 was used. Although it has been requested that gross floor area be used to determine trip generation, the use of students is a more conservative approach. With a net new increase of 13,208 square feet, the proposed development would only generate a net increase of about 90 new trips during peak arrival times (AM Peak Hour of the Generator) and 42 new trips during peak dismissal times (PM Peak Hour of the Generator), with both numbers being less than what was identified in the TIA. Response 4: The checklist has been updated. Per the traffic impact fee rate of $2.00 per square foot for an elementary school, the proposed development would need to provide a fee of $26,416.00 based on a net increase of 13,208 square feet (50,382 square feet existing and 63,590 square feet future). The TIA has been updated per this correction. Response 5: The TIA has been updated with an engineering stamp by Michael Read, PE November TEN W Page 4 Federal Way School District - Lake Grove Elementary School Response to Comments Response 6: The City's adopted LOS standard is 1.2 for signalized intersections and 1.0 for unsignalized intersections. All study intersections and site driveway intersections meet the City's adopted LOS standards. Response 7: Figures 3 and 6 in the TIA have updated daily traffic volumes. Response 8: Please see the "School Safe Walk Route" section in the updated TIA. Please see the "Queuing Analysis and Student Pick-Up/Drop-Off Loading Areas" section in the updated TIA. Please note that: School bus turning radiuses at site driveways and adjacent intersections for Lake Grove Elementary School will be provided by other Team members. Response 9: Please see the "Queuing Analysis and Student Pick-Up/Drop-Off Loading Areas" section in the updated TIA. Response 10: Figure 4 in the Existing Conditions memorandum document recommendations only. Recommendations do not necessarily always have to be implemented. However, to accommodate the City, Figure 4 of the Existing Conditions memorandum for Wildwood Elementary School has been updated to remove the "no parking signs" and is provided as Attachment C. Response 1 1: Figure 4 in the Existing Conditions memorandum document preliminary recommendations only. To address City comments, Figure 4 of the Existing Conditions memorandum for Wildwood Elementary School has been updated to remove the "speed bumps" recommendation and is provided as Attachment C. The intersection control at each site driveway intersection onto S 300th Street has been updated to roundabouts, and therefore, the LOS has been updated. Please see the Site Access and Safety Issues updates and LOS results with the project in 2020 in the updated TIA. Response 12: The TIA has been updated to address the corrections identified. Response 13: Per the traffic impact fee rate of $2.00 per square foot for an elementary school, the proposed development would need to provide a fee of $26,416.00 based on a net increase of 13,208 square feet (50,382 square feet existing and 63,590 square feet future). The TIA has been updated per this correction. If you have any questions regarding the information presented in this memo, please call me at (206) 361-7333 x 101 or mikereadQtenw.com. TEN W NovembePage 5 Attachment A Lake Grove Elementary Schoo Entering Sight Distance ff 4h r b-I j@jLo s-- -Qql 260'mJn to rGadway 5 —m;zh--speed linilt sisin Attachment B Mirror Lake Elementary Schoo Existing Conditions Figure 4 - Recommendations Widen the existing loading area for 2 lanes so vehicles can easily get out of the loading lane when they pick up and drop off students. This will improve traffic flow. Figure 4 � TE N W Mirror Lake Elementary School Arrival and Dismissal Period Proposed Recommendations (Not to Scale) Federal Way School District Mirror Lake Elementary School Existing Conditions Attachment C Wildwood Elementary Schoo Existing Conditions Figure 4 - Recommendations V f Provide Crossing Guards in the AM and PM. Add Traffic Cones along this section to prevent vehicles from parking too close to the intersection. =1 (Not to Scale) Figure 4 Federal Way T N �nJ Wildwood Elementary School School District 1 E ► ■ Wildwood Elementary Arrival and Dismissal Period School Proposed Recommendations Existing Conditions �TENW Transportation Engineering NorthWest MEMORANDUM DATE: January 9, 2019 ���-•.�;'��, °a TO: Robert Evans, PE, Capital Projects Manager .� CC: Casey Moore, Project Manager .• FWPS Support Services Center G s �'870NAL �N FROM: Michael J. Read, PE, Principal, TENW 2/28/2019 SUBJECT: Federal Way School District — chooi Traffic Impact TENW Project This memorandum summarise; ' ��. tion of Federal Way School District's Mirror l:SAY� reef in Federal Way, WA. This memo inclu: 4s k-,^,PA � transportation conditions within the immediaS j ip generation estimate, trip distribution, Ira 1 ft�-L'^ �"',1 ons and site driveway intersections under :� �*� ate^ y C] � transportation mitigation measures to offset tra Project Description bO& The proposed renovation of F pp� k7 �3tr School is located at 625 S 314th Street is shown in Figure 1. For the purposes of assumed to evaluate cumulative traffic impac The -existing -.gross floor area built at the Mirror Lake Elementary School comprises of approximately 54,803 square -feet {including the main building and portable structures) and selves appraximately`t450 students,` The proposed gross floor area of the new school is approximately 63,590 square -feet with a student capacity to serve up to 600 students. Therefore, there would be a net increase of approximately 8,787 square -feet and 150 students in student -capacity with the proposed renovation. Existing primary site access (North and East Driveway) is provided via one enter -only driveway at S 3151h Street onto S 314th Street to .the north and one exit -only driveway accessing S 315th Street onto 8th Avenue S to the south. There is also an existing designated student pick- up / drop-off area located at the northwest corner of the property with one enter -only driveway onto 6th Avenue S and one exit -only Wes[ Driveway onto S 314th Street approximately 60 feet west of 7th Avenue S between centerlines. Transportation Planning I Design I, Traffic Impact & Operations PO Box 65254, Seattle, WA 98155 1 Office (206) 361-7333 Federal Way School District - Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis _Q r 5 312th St m � Q Vf r S 313th St � Q > S 314th St h N C� Mirror Lake Q N Elementary L CD > School Q3150h i St, S 315th St t v S 316th PI S 3161h St S3171hSt a s S 317th St +I y I S 318th PI 5: a` S 320th St (Not to Scale) Federal Way T E N W Figure 1 School District Project Site Vicinity Mirror Lake Elementary School Traffic Impact Analysis TTENW page 2 January 9, 2019 Federal Way School District - Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis Proposed site access is provided via realigning the existing West Driveway onto S 314ih Street to become the south leg of the S 314th Street and 7h Avenue S intersection, and also reconstructing the current primary East Driveway. Both proposed site driveways onto S 314th Street would operate as full access driveways. All other existing site driveways would be removed. The renovated west parking lot would provide 11 visitor parking stalls and the renovated east parking lot would provide 49 staff parking stalls. As part of the project, roadway frontage improvements would be required along S 314th Street. A conceptual site plan of the project is illustrated in Figure 2. P A i Existing Transportation Conditions 6r:.c S -e S3is 4 • This section includes an inventory of existing roadway conditions, key intersections in the site vicinity, existing daily and peak hour traffic volumes, intersection levels of service, nonmotorized facilities and planned roadway improvements. Roadway Conditions The following paragraphs describe existing arterial roadways that would be used for site access. Roadway characteristics are described in terms of number of lanes, posted speed limits, shoulder types and widths. S 314th Street is a two-lane roadway. West of the North Driveway, the total pavement width is 29 feet with curbs, gutters and sidewalks on the north side of the street and 7- to 8-foot gravel shoulders on the south side of the street. East of the North Driveway, the total pavement width is 38 feet with 2-foot gravel shoulders on the south side of the street. The posted speed limit is 25 mph with a 20 mph posted speed sign when school children are present. A vehicle speed survey was conducted in ,June 2018 by lolax Data Solutions on S 314th Street between 7th Ave S and S 315th Street / North Driveway (west of the North Driveway) for Mirror Lake Elementary School, with a 50th percentile speed of 17 mph, 85th percentile speed of 24 mph and a 951h percentile speed of 27 mph in the eastbound direction, and in the westbound direction, a 50th percentile speed of 19 mph, 85th percentile speed of 27 mph and a 95th percentile speed of 30 mph. 8th Avenue S is a two-lane principal collector with 1 1-foot travel lanes and 5-foot paved shoulders on both side of the street. The speed limit is posted at 25 mph with a 20 mph flashing posted speed during school arrival and dismissal periods. TEN W page 3 January 9, 2019 Federal Way School District- Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis N GI Q t A Furl AC08% 51N7H sr nli Ar.-.Pt• . West Parking Lot - I` Student Pick -Up/ Drop -Off Lot _ - I _ East Parking Lot � Y J Plus Pick -Up/ E Drop Off Lot tit '"� Co i • l `f �� �3 } sell E9MIII q. }, C t: .� -4 919114 61 1 •�� ! f::. V TENW1 oft Figure 2 Conceptual Site Plan TTENW page 4 9 (Not to Scale) Federal Way School District Mirror Lake Elementary School Traffic Impact Analysis January 9, 2019 Federal Way School District - Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis A vehicle speed survey was conducted in June 2018 by lclax Data Solutions on 8th Avenue S between S 314th Street and S 315th Street / South Driveway for Mirror Lake Elementary School, with a 50th percentile speed of 24 mph, 85th percentile speed of 29 mph and a 95fh percentile speed of 32 mph in the northbound direction, and in the southbound direction, a 50th percentile speed of 24 mph, 85th percentile speed of 29 mph and a 95fh percentile speed of 32 mph. S 315th Street is a two-lane roadway with 17-foot travel lanes west of 8th Avenue S (also egress for Mirror Lake Elementary School) and a 33-foot pavement width east of 8th Avenue S (also Mirror Lake Park dead end entrance). The posted speed limit is 25 mph. Traffic Study Intersections The following intersections were analyzed during the AM and PM peak hour: 1 . S 314th Street / S 315th Street / North Driveway — Becomes S 314th Street / East Driveway with the project 2. S 314th Street / 8th Avenue S 3. 81h Avenue S / S 315th Street / South Driveway — Becomes S 314th Street / S 315th Street with the project 4. S 314th Street / 7h Avenue S / West Driveway — Future 2020 Analysis only Existing Daily and Peak Hour Traffic Volumes Peak hour traffic volumes represent the highest hourly volume of vehicles passing through an intersection during a typical 7-9 AM and 4-6 PM weekday peak period. Average weekday daily traffic counts and peak period turning movement counts were conducted during the AM and PM peak hour in June 2018 by lclax Data Solutions during the 7-9 AM, 4-6 PM at off -site study intersections and at 2-6 PM periods at school driveway intersections. Figure 3 summarizes existing daily, AM and PM peak period turning movements at the study intersections. Traffic counts are provided in Attachment A. During the p.m. peak hour, please note that all study intersections, including the off -site study intersections (#2 and #3) were analyzed based upon the weekday p.m. peak hour of the generator for the proposed project (peak dismissal time for one hour between 2:30 to 3:45 p.m. depending upon the intersection.) as this was determined to be the p.m. peak hour for all study intersections. Existing Intersection Levels of Service Intersection levels of service (LOS) analyses were conducted at the study intersections during the weekday AM and PM peak hour of 2018 existing conditions. LOS refers to the degree of congestion on a roadway or intersection. It is a measure of vehicle operating speed, travel time, travel delays, and driving comfort. TEN W page 5 January 9, 2019 h Q r 135 S 316th PI F 44 (381 36 ("1 SJia�s! 137) 38 --P- is f29) 8 450 Mirror Lake Elementary School Federal Way School District- Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis S S 3141h SU811, Ave S 1231 131) (0)It 212) 11319- t ('" 9 —]► (35)35—.4 56 106 8 (971 (931 (71 313th St w( S 314th St 2,800 n Qh, 0 N 31't1 S; S315thSt 81h Ave sr5 315rh SU Serwot C1r. vcwa ;t 1681 (I)! 5 181 1 12 __ F 0 (0) St )0 l3 e +i unN 2 135122 —4 1 T 5317thS�- l t 0i 2 132 5 (581 42 —.4 (31 11551 (121 > 1 S 318th PI i a = 5 40 fn � hr QI S 320th St Legend 45 PM Peak Hour Traffic Volumes (65) AM Peak Hour Traffic Volumes 5,000 Daily Traffic Volumes 9 INo1 ro scale) Federal Way Figure 3 School District I-LO T E NW2018 Existing Daily, AM, PM Mirror Lake Elementary Peak Hour Traffic Volumes School Traffic Impact Analysis TEN W page 6 January 9, 2019 Federal Way School District - Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis A letter scale from A to F generally describes LOS. At signalized intersections, LOS A represents free -flow conditions -motorists experience little or no delays, and LOS F represents forced -flow conditions -motorists experience an average delay in excess of 80 seconds per vehicle. The LOS reported for signalized intersections represents the average control delay per vehicle entering the intersection. The LOS reported at stop -controlled intersections is also based on the average control delay (sec/veh) and is reported for each movement. Therefore, the reported LOS at unsignalized intersections does not represent a measure of the overall operations of the intersection. LOS calculations for both signalized and stop -controlled intersections were calculated using the methodologies and procedures outlined in the 2010 Highway Capacity Manua/ �HCM), Special Report 209, Transportation Research Board (TRB). Table 1 outlines the LOS criteria for signalized and unsignalized intersections based on these methodologies. The City of Federal Way's LOS standard is a v/c ratio of 1 .2 for signalized intersections and 1 .0 for unsignalized intersections. Existing AM and PM peak hour LOS analyses are summarized in Tables 2 and 3. As shown, all intersections operate at LOS B or better with a v/c ratio under 1 .0 during the AM peak hour and at LOS C or better with a v/c ratio under 1 .0 during the PM peak hour under 2018 existing conditions. Detailed LOS summary worksheets are included in Attachment B. Table 1 Level of Service Criteria for Intersections Signalized Intersection Unsignalized Intersection Level of Service Average Delay Range sec Delay Ran a sec A 5 10 5 10 B > 10to<_20 > 10to__<15 C >20to<35 > 15to<25 D > 35 to s 55 > 25 to _< 35 E >55to<_80 >35to<_50 F > 80 > 50 Source: "Highway Capacity Manual", Special Report 209, Transportation Research Board, 2010. TEN W page 7 January 9, 2019 Federal Way School District - Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis Table 2 2018 Existing AM Peak Intersection Levels of Service Study Intersection LOS Delay sec V/C Ratio Unsianollized lnfersectians # 1 - S 314th St / North Driveway W B Left A 5.8 0.10 #2 - S 314th St / 8th Ave S EB B 10.5 0.09 WB B 13.1 0.07 NB Left A 4.1 0.08 #3 - 8th Ave S / S 314th St / South Dr EB B 13.8 0.23 W B B 14.6 0.05 NB Left A 0.2 0.00 SB Left A 0.4 0.00 Source: "Highway Capacity Manual", Special Report 209, Transportation Research Board, 2010 Table 3 2018 Existina PM Peak Intersection Levels of Service Study Intersection LOS Delay (secl V/C Ratio Unsignralized lnt_em-rfions # 1 - S 3141h St / North Driveway W B Left A 3.7 0.04 #2 - S 314th St / 8th Ave S EB B 10.4 0.09 #3 - 8th Ave S / S 314th St / South Dr W B B 12.4 0.05 NB Left A 2.8 0.05 EB B 15.0 0.18 W B C 16.1 0.04 NB Left A 0.2 0.00 SB Left A 0.3 0.00 Source: "Highway Capacity Manual", Special Report 209, Transportation Research Board, 2010. Nonmotorized Facilities Sidewalks are provided on the north side of S 314th Street mid -block between 8fh Avenue S and S 315ih Street / North Driveway west to 7ih Avenue S and on the east side of 7fh Avenue S. Paved shoulders are provided on 8th Avenue S. Marked crosswalks are located along the west side of the S 314fh Street / S 315fh Street / North Driveway intersection, on the north side of 8th Avenue S at its intersection with S 314ih Street, and on the south side of 86 Avenue S at its intersection with S 315fh Street / South Driveway. The crosswalks on 8th Avenue S are speed bump crosswalks. TTENW page 8 January 9, 2019 Federal Way School District -Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis Planned Transportation Improvements No planned transportation capacity improvements impacting Mirror Lake Elementary School based were identified in the City of Federal Way's 2018-2023 Transportation Improvement Program. Existing Sight Distance Field work was conducted by TENW along 8ih Avenue S on Tuesday, ,June 12, 2018. Driver entering sight distance at S 315th Street / South Driveway onto 8ih Avenue S is greater than 500 feet to the north and south. With a 25 mph design speed on S 300ih Street (5 mph over 20 mph posted speed), based upon AASHTO design requirements, a minimum of 280 feet is required for entering sight distance and 155 feet is required for design stopping sight distance for left -turns (AASHTO Green Book, Exhibit 9-55. Design Intersection Sight Distance — Case B1 — Left Turn from Stop), and a minimum of 240 feet is required for entering sight distance and 155 feet is required for design stopping sight distance for right -turns (AASHTO Green Book, Exhibit 9-58. Design Intersection Sight Distance — Case B2 — Right Turn from Stop and Case B3 — Crossing Maneuver). Therefore, the S 315th Street / South Driveway onto 8th Avenue S meets minimum AASHTO entering sight distance requirements. Traffic Impact Analysis The following section describes projected future baseline traffic growth, new trips generated by the proposed development, distribution and assignment of new project trips, intersection level of service and daily traffic volume impacts, nonmotorized impacts, site access, safety and circulation issues, and identification of transportation mitigation to offset impacts. 2020 Baseline Traffic Volumes Full buildout of the project is anticipated for the year 2020. Existing traffic counts estimated in 2018 were factored by 3 percent per year to estimate daily, a.m. peak hour and p.m. peak hour traffic volumes under 2020 baseline conditions without the project. Future traffic volume estimates are provided in Attachment C. Project Trip Generation Per published trip generation rates within the Trip Generation Manual, 10th Edition, 2017, Institute of Transportation Engineers (ITE), for Land Use Code 520 - Elementary School, there is no correlative basis to derive estimated changes in vehicle trip generation based on changes in floor area, but better evidence of correlation on daily trips and significantly higher number of studies based on student population. Based on TENW's extensive experience in reviewing K- 12, private schools, and numerous community colleges throughout the Pacific Northwest, he best correlative predictor of increase traffic demand is student enrollment at school institution . o GeTENW page 9 January 9, 2019 Federal Way School District - Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis As such, as shown in Table 4, based on the net increase of approximately 150 students, the net increase in vehicle trips on a daily basis is estimated at 284 daily trips, with approximately 98 new trips generated during peak arrival periods (AM Peak Hour of Generator), 51 new trips generated during peak dismissal periods (PM Peak Hour of Generator), and ft n-Z Vehicle trips during the p.m._ peak hour of adjacent street traffic (i.e., the worse -case scenario). Table 4 Mirror Lake Elementary School Trip Generation Summary Time Period In Out Total Weekday Daily 142 142 284 Weekday AM Peak Hour of Generator 53 45 98 Weekday PM Peak Hour of Generator 23 28 51 Weekday PM Peak Hour of Adjacent Street Traffic 12 14 i Source: ITE Trip Generation Manual, 10h Edition, 2017. Trip Distribution and Assignment Project trip distribution is based upon traffic counts that were conducted in ,June 2018 during the a.m. and p.m. peak hour at all off -site and site driveway study intersections. Generally, distribution and assignment of project trips were assumed as follows: ➢ 27 percent north via 6th Avenue S, 7h Avenue S and 8th Avenue S; ➢ 63 percent south via 6th Avenue S and 8th Avenue S; and ➢ 10 percent east via S 314th Street. Figure 4 illustrates trip distribution and Figure 5 shows the daily, a.m. peak hour and p.m. peak hour trip assignment at the study intersections during the 2020 horizon year. Figures 6 and 7 summarize daily, a.m. peak hour and p.m. peak hour traffic volume impacts of the proposed renovation of Federal Way School District's Mirror Lake Elementary School project in 2020. Intersection Level of Service and Daily Traffic Volume Impacts Tables 5 and 6 summarize level of service impacts in 2020 assuming full buildout of the proposed renovation of Federal Way School District's Mirror Lake Elementary School project. As shown, all study intersections are projected to operate at LOS C or better with a v/c ratio under 1.0 during the a.m. and p.m. peak hour with or without the project in 2020. Detailed LOS summary worksheets are included in Attachment B. Daily traffic volumes on S 314th Street east of 7h Avenue S would increase by about 140 vehicles and on 8th Avenue S south of S 315th Street by approximately 170 vehicles with the project in 2020. TTENW page 10 January 9, 2019 Federal Way School District - Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis Q } L_ S 3121h St N i Q V1' r > S 313th St _ > { F, Ath S1 � ' r• � N/ irror Lake Q N tEllementary s' Q School 315f f S 3151h St L_ v .! S 316th PI - S 316th St 'r N S 317ih St S 3171h St N S 318th PI I d l r h� �. i a _ S 32DIh St Federal Way V9 TEN W Figure 4 School District Project Trip Distribution Mirror Loke Elementary School Traffic Impact Analysis VTENW page 11 January 9, 2019 N Q , L_ 5 3141h 5rI7�n Ave 5 NISI Df vL•w.1 V 631 71271 i3larn S• t 13) 35 '. 56 106 8 (2) 12l 123) f 10 a L O S 316th PI S 317th S 1 S 318th PI r �o Federal Way School District - Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis S 3141h St/East Dnveway �� 4< 1271 Pr- 36 1211 S_ <Il it i Y 1231 38 — £ 8 1181 S 312th St S 3141h SI/8th Ave S s 0 %---i215i •2A i tl3ail: S' 191 9 --4 56 127135-14 132% a' 140 Q I Go / S 314th St 4 1 Mirror Lake Q Elementary School s 315th SI s 31 stn sr 81h Ave S/S 31511, St 1127) 4 St t a� t r I 132 (32) 0] T Q� y S 320th St Legend 45 PM Peak Hour Traffic Volumes (65) AM Peak Hour Traffic Volumes 5,000 Daily Traffic Volumes fr�f ra s� oer Figure 5 Federal Way 'c-0 T E NW Daily, AM g School District & PM Peak Hour Mirror Lake Elementary Project Trip Assignment Schaal Traffic Impact Analysis %9TENW page 12 January 9, 2019 N Q 5314!h WMAveS 4 IO) C 7 T F 36 H I II n (271 it-nnY Q t 63 —► a 0 0 13)0- A .� (21 (2) (23) Federal Way School District - Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis S 3141h SI/81h Ave S 2 {} j1 5 312th St 24 T- (23)14� I 191 4 -. 103 97 I w 164) 37 r 1135 480 a L (620) < S 3141h St 2 2,970 (3,140) (U e\ Mirror Lake Elementary s School ^ 315tn ss 53T5fh51 S 317'h St ;Y- I 5 3141h St/East Driveway f 431671 94 1116) 162) 39 —) > 0 0 31� 11�1 FL 1 L S 320th St 81h Ave S/S 3151h SI 199} R' 2 I1 72 3 5t S 3"5n 51 37-4 + I —w 3 ! 64 13 62 ;i96) l Legend l 45 Peak Hour Traffic Volumes Without Project (65) Peak Hour Traffic Volumes With Project 5,000 Daily Traffic Volumes Without Project 9 (5,000) Daily Traffic Volumes with Project Itial ro scale) Figure 6 Federal Way g School District TE N W 2020 Daily and AM Peak Mirror Lake Elementary Hour Traffic Volume Impacts School Traffic Impact Anoly5i5 TTENW page 13 January 9, 2019 k 4, Federal Way School District - Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis NI N Q� 53141h S'47!n Ave wosl Dfnewvs 0 0 S R t 42 N > Q 44 i 0 0 0 (1)0�1 111 II) 1141 S 316th PI S 3141h StlEast Dweway 47 (58) Ir 381471 r ` 1 I (54) 40 —7► 0 0 8 � II11 N Q L rz Mirror Lake Elementary School 1 31 FL S 317th St L I � I: S 318th PI I 1nl (D Q L S 320th St S 312th St S 3141h St/8th Ave S 301 ` R` 2 J25 67 0 E t 13 115) j15110� I 1 112110-1 59 112 8 154137 --X 1731 S 314th St - f y d) _ V s S 315th St 81h Ave S/S 3151h St I19 3 a t 0 St J0 i iw 6 23 —4 t 0 —10- 2 40 5 q5 54 Legend 45 Peak Hour Traffic Volumes without Project (65) Peak Hour Traffic Volumes With Project 114al IQ Scoie ) Figure 7 Federal Way `5F T E NW 2020 P9 School District M Peak Hour Mirror Lake Elementary Traffic Volume Impacts Schaal Traffic Impact Anatysis TTENW page 14 January 9, 2019 Federal Way School District - Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis Table 5 2020 AM Peak Intersection Level of Service Impacts 2020 Without Project 2020 With Project Delay V/C Delay V/C Study Intersection LOS (Sec) Ratio LOS (Sec) f Ratio Llnsianalixed Intersections # 1 - S 314th St / East Driveway #2 - S 314th St / 8th Ave S #3 - 8th Ave S / S 314th St #4 - S 3141h St / 7th Ave S / West Dr WB Left A 5.8 0.10 A 8.4 0.14 NB -- - B 10.1 0.04 EB B 10.7 0.10 B 12.0 0.19 WB B 13.7 0.08 B 15.9 0.11 NB Left A 7.6 0.09 A 7.8 0.12 EB B 13.5 0.23 B 14.4 0.25 WB B 13.8 0.05 B 14.7 0.05 NB Left A 7.8 0.00 A 7.9 0.00 SB Left A 8.2 0.00 A 8.3 0.00 WB Left -- -- -- A 7.4 0.02 NB - -- -- A 8.9 0.03 SB A 9.1 0.01 B 10.0 0.02 Source: "Highway Capacity Manual", Special Report 209, Transportation Research Board, 2010. Table 6 2020 PM Peak Intersection Level of Service Impacts 2020 Without Project 2020 With Project V/C Delay V/C Study Intersection 1 Ratio LOS (sec) Ratio Unsi nal'-1In # 1 - S 314th St 1]tC `��'"� 4 .� • mac. s� t y*',� 0.04 A B 8.2 10.1 0.06 0.02 #2-S314thSt/t ��,•1t 43,�e�� 0.10 B 11.0 0.14 0.06 B 13.4 0.06 0.05 A 7.7 0.06 #3 - 8th Ave S / S ;•.. � { ,1 0.20 C 15.0 0.19 ����L r - 11 1A 0.04 C 15.4 0.04 0.00 A 8.2 0.00 0.00 A 8.3 0.00 #4 - S 314th St / 7th -- B 13.4 0.06 -- A 7.7 0.06 0,01 A 8.0 0.00 Source: "Highway d, 2010. Nonmotort As part of the OpQsed project, raised sidewalks would be provided along the school property frontage on S 314th Street. 'Marked crosswalks and speed bump crosswalks on S 314th Street and 8rh Avenue S would r main the some. �� � ►rtipll�, ti,1 `J 5 31 y 5 } ►'��v�iZ�..._-� 1, - ��-•t�dr � z..tc _ k-n t-�.-.c ro�1 . TEN W page 15 January 9, 2019 Federal Way School District- Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis Site Access and Safety Issues Existing primary site access (North and East Driveway) is provided via one enter -only driveway at S 315th Street onto S 314th Street to the north and one exit -only driveway accessing S 3151h Street onto 8th Avenue S to the south. There is also an existing designated student pick- up / drop -off -area located at the northwest corner of the property with one enter -only driveway onto 6th Avenue S and one exit -only West Driveway onto S 314th Street approximately 60 feet west of 7th Avenue S between centerlines. Proposed site ac Street to become reconstructing the Street would ope removed. The renovated we parking lot would would travel in circulation would parking lots is sh❑ As part of the prc landscaping wou dedication. All: better with a vA 2020. West Driveway onto S 314th S intersection, and also driveways onto S 314th e' ite driveways would be and the renovated east )rking lot, site circulation east parking lot, traffic 3 circulation within these 7urb, gutter, sidewalk and J also require right-of-way 3uld operate at LOS B or k hour with the project in Queuing Analysis and Student Pick-Up/Drop-Off Loading Areas Currently there are no vehicle queuing issues during the PM peak hour as vehicle arrivals and departures are staggered in the afternoons while parents wait for their students and a multitude of access and egress roadways for parents to travel onto (i.e., 6th Avenue S, 7th Avenue S and 8th Avenue S). Existing maximum westbound queue lengths on S 3141h Street at its intersection with S 315th Street/Site Driveway (Intersection #1 ) were observed to be about 5 vehicles during the AM peak hour but only occurred once and lasted less than a minute. This vehicle queue was primarily due to crossing guard closures for students at the driveway entry. No other queuing issues were observed under existing conditions. l rl Witfr the rernoval of the .southern driveway onto 8..11' Avenue S and removal of access to the existing loading area via 6th Avenue S, there would be two site driveways onto S 3146 Street: Intersection # 1 — S 314th Street/S 315th St/East Driveway and Intersection #4 — S 314th Street / 7th Avenue S / West Driveway. Minor vehicle queuing on S 314th Street is anticipated to occur at these intersections related to waiting for typical gaps in conflicting traffic flows as the interior site design will provide for on -site parent pick-up areas and parking maneuvers would be relocated further away from entry driveways. At Intersection #1 — S 314th Street/S 315th St/East Driveway, with the proposed redevelopment, typical queues TTENW page 16 January 9, 2019 Federal Way School District -Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis during the AM peak hour or PM peak are expected to be no more than 2 vehicles in the westbound direction with the project in 2020 given the typical peak arrival patterns of parent trips during peak school arrival/dismissal periods, which is higher than modeled queuing results using traditional HCM methodologies. There are no anticipated queuing issues in the eastbound direction. Existing crossing guard stoppages would be relocated to 7h Avenue S, and as such, existing observed vehicle queuing westbound on S 314th Street would be significantly reduced. At Intersection #4 — S 314th Street / 7h Avenue S / West Driveway, westbound queues are anticipated to be about 1 vehicle during the AM peak hour and PM peak hour with the project in 2020. There are no anticipated queuing issues in the eastbound direction. It should be noted that 956 percentile queue lengths for all stop -controlled movements at the site driveway intersections onto S 314th Street estimate queue lengths to be less than 25 feet or 1 vehicle during the AM and PM peak hour with the project in 2020. S 314th Street and 7h Avenue S are low intersections onto S 314th Street would exr AM peak hour and less than 200 entering 1 project. Peak neighborhood traffic impactl 10 to 15 minutes during peak hours of sch J. The expanded west parking lot would prc up/drop-off loading area for a total of provided in the southern section of the eos spots for a loading area. Therefore, these offs would minimize impacts to the surround i& School Safe Walk Route Figure 8 shows safe walk routes within a 1- Since pedestrian access is no longer being is 315th Street intersection and west via 6th pAvenupeS, Mirror Lake Elementary School should provide curbs, gutter and sidewalk along its property frontage on S 314th Street, as well as extend from the property site east to 8th Avenue S. With the installation of this sidewalk, students would be able to safely travel along sidewalks or shoulders on 8th Avenue S and S 314th Street to access the school from the east. A crosswalk should also be provided on the south leg of the 8th Avenue S and S 314th Street G��`�kz-� intersectiorL, along with a crossing guard during school arrival and dismissal periods. The / "'�C►�s existing crossing guard at the 8th Avenue S and S 315th Street intersection no longer has to be IG provided with pedestrian access primarily via S 314th Street with redevelopment of the project. The existing crosswalk with crossing guard on S 3146 Street by the existing North (East) driveway should be relocated to the west with installation of a crosswalk on the east leg of the '9 TEN W page 17 January 9, 2019 Federal Way School District- Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis S 314th Street and 7h Avenue S intersection, providing direct access to the school. A crossing guard should be provided during school arrival and dismissal` periods at this location. A 20 mph school zone flasher enhancement should be installed on 81h Avenue S and S 310 Street. Project Mitigation Lac"5�, Iry A review of traffic impacts to intersection levels of service, site access, and circulation issues �- was conducted in association with the Mirror Lake Elementary School in Federal Way, WA.}"} r The following mitigation measures are recommended to reduce or eliminate project impacts: , ➢ The City of Federal Way assesses a traffic impact fee rate of $2.00 per new s��� foot of floor area for elementary schools (2018 Federal Way Impact Fee and Components). Based upon a net increase of 8,787 square feet (54,803 square feet existing and 63,590 square feet future), Mirror Lake Elementary School would be assessed a traffic impact fee of $12,352.00. The final fee would be determined at building permit issuance. ➢ The applicant would be required to construct the necessary frontage improvements along S 314th Street to include curb, gutter, sidewalk and landscaping, which could also include right-of-way donation. To, ould be extended from the property site east to;$ �h �AyenueS+y ➢ Provide a crosswalk on the south leg of the 8th Avenue S and S 3141h Street intersection, along with a crossing guard during school arrival and dismissal periods. The existing crossing guard at the 8th Avenue S and S 315th Street intersection no longer has to be provided with pedestrian access primarily via S 3141h Street with redevelopment of the project. ➢ The existing crosswalk with crossing guard on S 3141h Street by the existing North (East) driveway should be relocated to the west with installation of a crosswalk on the east leg of the S 3141h Street and 7h Avenue S intersection, providing direct access to the school. A crossing guard should be provided during school arrival and dismissal periods at this location. ➢ Install a 20 mph school zone flasher enhancement on 8th Avenue S and S 314th Street. Lk If you have any questions regarding the information presented in this memo, please call me at (206)*361-7333 x 101 or mikeread@tenw.com. TTEN W page 18 January 9, 2019 Federal Way School District - Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis Legend ..... wnk Rau*- S'dowo* a snowdm •.r;n kd'&dcob ..... wok ROU r S*q.r OMY ..... WOOL ROV*: LL"*04 "Srauuw CIO"-'* cmmv :NdpjSj DOW % V'W lvoaf S&"d tore Federal Way T E N W Figure 8 School District School Safe Walk RouteMirror Lake Elementary School Traffic Impact Analysis TTENW page 19 January 9, 2019 ATTACHMENT A Daily, AM & PM Peak Traffic Counts T TENW www.idaxdata.com S 315TH ST S 314TH ST A Date: Tue, Jun 12, 2018 N Peak Hour Count Period: 7:00 AM to 9:00 AM Peak Hour: 7:45 AM to 8:45 AM S 314TH ST 38 38 127 0 r 0 TEV: 193 85 V 66 37 PHF: 0.67 4 - > so 4 0 29 {J VV 22 W S 314TH ST 0 0 0 HV %: PHF fcEB 1.5% 0.69 WB Cn 6.3% 0.65 t NB o SB - TOTAL 4.7% 0.67 Two -Hour Count Summaries S 314TH ST S 314TH ST S 315TH ST 0 Rolling Interval 15-min Start Eastbound Westbound Northbound Southbound Total One Hour UT LT TH RT UT LT TH RT UT LT TH RT UT LT TH RT 7:00 AM 0 0 0 1 0 6 0 0 0 0 0 0 0 0 0 0 7 0 7:15AM 0 0 3 0 0 9 2 0 0 0 0 0 0 0 0 0 14 0 7:30 AM 0 0 1 3 0 8 3 0 0 0 0 0 0 0 0 0 15 0 7:45 AM 0 0 3 9 0 12 3 0 0 0 0 0 0 0 0 0 27 63 8:00 AM 0 0 16 8 1 19 14 0 0 0 0 0 0 0 0 0 58 114 8:15 AM 0 0 15 8 3 28 18 0 0 0 0 0 0 0 0 0 72 172 8:30 AM 0 0 3 4 0 26 3 0 0 0 0 0 0 0 0 0 36 193 8:45 AM 0 0 1 1 0 4 6 0 0 0 0 0 0 0 0 0 1 12 178 Count Total 0 0 42 34 4 112 49 0 0 0 0 0 0 0 0 0 1 241 0 Peak Hourt 0 0 37 29 4 85 38 0 0 0 0 0 0 0 0 0 1 193 0 Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count. Interval Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg) EB WB NB SB Total EB WB NB SB Total East West North South Total Start 7:00 AM 0 0 D 0 0 0 0 0 0 0 0 0 V 0 0 7:15AM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7:30 AM 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7:45 AM 0 0 0 0 0 0 0 0 0 0 1 2 0 3 6 8:00 AM 1 2 0 0 3 0 0 0 0 0 1 21 0 3 25 8: 15 AM 0 6 0 0 6 0 0 0 0 0 3 39 0 13 55 8:30 AM 0 0 0 0 0 0 0 0 0 0 0 4 0 3 7 8:45 AM 0 1 0 D 1 1 0 0 0 0 0 2 1 0 0 3 Count Total 1 9 0 0 10 1 0 0 0 0 0 7 67 0 22 96 Peak Hr 1 8 0 0 9 1 0 0 0 0 0 5 66 0 22 93 Mark Skaggs: (425) 250-0777 mark.skaggs@idaxdata.com www.idaxdata.com 1 8TH "ES S 314TH ST A N Peak Hour v dLU 2 M r Co N M Co 0 19 13 TEV: 52 -j 4 PHF: 35 S 314TH ST n n o ti o� M Two -Hour Count Summaries co 0 r O O t U L s 314TH ST 2 330 18 0.79 � 7 1 t r� 0 h Cq 1, w rn EB n WB WFNB HV %: 0.0% 3.7% 4.1 % SB 1.9% TOTAL 3.0% Date: Tue, Jun 12, 2018 Count Period: 7:00 AM to 9:00 AM Peak Hour: 7:45 AM to 8:45 AM � nnnrtrtn . � n 3 � 0 0 0 �0 0-» , w 0000 . t ` o PHF 0.62 0.75 0 0.85 0.64 0.79 41 S 314TH ST S 314TH ST 8TH AVE S 8TH AVE S Interval 15-min Rolling LUT Eastbound Westbound Northbound Southbound Start Total One Hour LT TH RT UT LT TH RT UT LT TH RT UT LT TH RT 7:00 AM 0 0 0 0 0 2 0 0 0 5 24 1 0 0 5 1 38 0 7:15 AM 0 2 0 1 0 2 2 2 0 7 29 1 0 0 14 2 62 0 7:30 AM 0 0 0 1 0 2 1 0 0 8 27 3 0 0 5 2 49 0 7:45 AM 0 0 0 3 0 2 1 0 0 13 21 0 0 0 6 2 48 197 8:00 AM 0 7 1 13 0 3 4 1 0 32 24 2 0 0 6 5 98 257 815 AM 0 3 2 16 0 0 9 0 0 33 18 2 0 0 8 13 104 299 8:30 AM 0 3 1 3 0 2 4 1 0 19 30 3 0 0 11 3 80 330 8:45 AM 0 0 0 2 1 0 0 0 0 8 12 2 0 1 13 2 41 323 Count Total 0 15 4 39 1 1 13 21 4 0 125 185 :14± 0 1 68 30 1 520 0 Peak Hour 0 13 4 35 0 7 18 2 0 97 93 7 0 0 31 23 1 330 1 0 Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count. Interval Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg) EB WB NB SB Total EB WB NB SB Total East West North South Total Start 7:00 AM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7:15AM 0 0 0 0 0 0 0 0 0 0 1 0 0 1 2 7:30 AM 0 1 0 0 1 0 0 0 0 0 1 0 0 0 1 7:45 AM 0 0 0 0 0 0 0 0 0 0 0 1 0 1 2 8:00 AM 0 0 3 0 3 0 0 0 0 0 3 2 1 0 6 8:15AM 0 1 5 0 6 0 0 0 0 0 1 0 2 0 3 8:30 AM 0 0 0 1 1 0 0 0 0 0 0 1 0 0 1 8:45 AM 0 0 0 2 2 0 0 0 1 1 0 0 1 1 2 Count Total 0 2 8 3 13 0 0 0 1 1 6 4 4 3 17 Peak Hour 0 1 a 1 10 0 0 0 0 0 4 4 3 1 12 Mark Skaggs: (425) 250-0777 mark.skaggs@idaxdata.com www.idaxdata.com 3 Y) W Q 2 Co Co F i0 0 4 35� TEV: 994 1 PHF: 58 S 315TH ST CDM 7 M M 1 8TH AVE S S 315TH ST Peak Hour N m n — Two -Hour Count Summaries M O LU S 315TH ST _ 8 351 0 E 15 0.78 � 7 fi 0 rwm!': N EB O WB NB HV %: 9.6% 0.0 % 4.7% SB 1.4% TOTAL 5.1 % owl Date: Tue, Jun 12, 2018 Count Period: 7:00 AM to 9:00 AM Peak Hour: 7:45 AM to 8:45 AM O n 0 -� v � Q N Q a r-� 0y 78 --j-90060D. I O PHF • 0.51 oa_ 0.63 7� 0.75 0.75 0.78 • A S 315TH ST S 315TH ST 8TH AVE S 8TH AVE S 15-min Rolling Eastbound Westbound Northbound Southbound Interval Total One Hour Start UT LT TH RT UT LT TH RT UT LT TH RT UT LT TH RT 7:00 AM 0 0 0 0 0 0 0 0 0 0 29 0 0 0 7 0 36 0 7:15 AM 0 0 0 0 0 0 0 1 0 0 34 1 0 0 16 0 52 0 7:30 AM 0 1 0 1 0 0 0 0 0 0 36 0 0 0 9 0 47 0 7:45 AM 0 5 0 2 0 1 0 0 0 0 34 0 0 0 11 0 53 188 8:00 AM 0 5 0 10 0 2 0 3 0 1 45 5 0 1 19 1 92 244 8.15 AM 0 7 1 18 0 4 0 2 0 2 49 6 0 1 23 0 113 305 8:30 AM 0 18 0 28 0 0 0 3 0 0 27 1 0 1 15 0 93 351 8:45 AM 0 1 0 3 0 0 0 1 0 0 20 0 0 1 16 0 42 340 Count Total 0 37 1 62 0 7 0 10 0 3 274 13 0 4 116 1 528 1 0 Peak Hour 0 35 1 58 0 7 0 8 0 3 155 12 0 3 68 1 351 0 Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count. Interval Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg) EB WB NB SB Total EB WB NB SB Total East West North South Total Start 7:00 AM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7:15AM 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 7:30 AM 0 0 0 1 1 0 0 0 0 0 1 0 0 0 1 7:45 AM 0 0 0 0 0 0 0 0 0 0 1 0 0 2 3 8:00 AM 1 0 3 0 4 0 0 0 0 0 13 3 0 19 35 8:15 AAA 7 0 5 0 12 0 0 0 0 0 10 0 0 47 57 8:30 AM 1 0 0 1 2 0 0 0 0 0 0 1 0 10 11 8:45 AM 0 0 0 1 1 0 0 0 0 0 0 1 0 3 4 Count Total 9 0 8 3 20 0 0 0 0 0 26 5 0 81 112 Peak Hour 9 0 8 1 18 0 0 0 0 0 24 4 0 78 106 Mark Skaggs: (425) 250-0777 mark.skaggs@idaxdata.com www.idaxdata.com S 315TH ST ww' S 314TH ST 024 Date: Tue, Jun 12, 2018 N Peak Hour Count Period: 2:00 PM to 6:00 PM Peak Hour: 2:30 PM to 3:30 PM S 314TH ST 44 4� 80 '_0 9 0 TEV: 126 31 < w • � 0�0 PHF: 0.73 46 38 5 - > 43 �O 0_' 77 8 � . �. VI r�2}6�7�7 S 314TH ST 0 0 � 0 = HV %: t PHF CD F 'c EB cn WB 0.0% 125% 0.58 0.74 NB rn M o SB TOTAL 7.9% 0.73 Four -Hour Count Summaries S 314TH ST S 314TH ST S 315TH ST 0 Interval Start Eastbound Westbound Northbound Southbound 15-min Total Rolling One Hour UT LT TH RT UT LT TH RT UT LT TH RT UT LT TH RT 2:30 PM 0 0 1 2 1 2 4 0 0 0 0 0 0 0 0 0 10 0 2:45 PM 0 0 2 2 0 15 12 0 0 0 0 0 0 0 0 0 31 0 3:00 PM 0 0 19 0 2 5 16 0 0 0 0 0 0 0 0 0 42 0 3:15 PM 0 0 16 4 2 9 12 0 1 0 0 0 0 1 0 0 0 0 1 43 126 Peak Hour 0 0 38 8 5 31 44 0 1 0 0 0 0 1 0 0 0 0 1 126 0 .Note: For all three-hour count summary, see next page. Interval Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg) Start EB WB NB SB Total EB WB NB SB Total East West North South Total 2:30 PM 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 2:45 PM 0 4 0 0 4 0 0 0 0 0 0 7 0 1 8 3:00 PM 0 5 0 0 5 0 0 0 0 0 4 58 0 22 84 3:15 PM 0 1 0 0 1 0 0 0 0 0 1 21 0 3 25 Peak Hour 1 0 10 0 0 10 1 0 0 0 0 0 6 86 0 26 118 Mark Skaggs: (425) 250-0777 mark.skaggs@idaxdata.com www.idaxdata.com Four -Hour Count Summaries S 314TH ST S 314TH ST S 315TH ST 0 Rolling Interval Start Eastbound Westbound Northbound Southbound 15-min Total One Hour UT LT TH RT UT LT TH RT UT LT TH RT UT LT TH RT 2:00 PM 0 0 2 1 0 2 1 0 0 0 0 0 0 0 0 0 6 0 2:15PM 0 0 3 2 0 4 6 0 0 0 0 1 0 0 0 0 16 0 2:30 PM 0 0 1 2 1 2 4 0 0 0 0 0 0 0 0 0 10 a 2:45 PM 0 0 2 2 0 15 12 0 0 0 0 0 0 0 0 0 31 63 3:00 PM 0 0 19 0 2 5 16 0 0 0 0 0 0 0 0 0 42 99 3:15 PM 0 0 16 4 2 9 12 0 0 0 0 0 0 0 0 0 43 126 3:30 PM 0 0 2 0 0 2 3 0 0 0 0 0 0 0 0 0 7 123 3:45 PM 0 0 5 0 0 0 5 0 0 0 0 1 0 0 0 0 11 103 4:00 PM 0 0 3 0 0 1 0 0 0 0 0 1 0 0 0 0 5 66 4:15 PM 0 0 2 0 0 1 2 0 0 0 0 0 0 0 0 0 5 28 4:30 PM 0 0 2 0 0 3 4 0 0 0 0 0 0 0 0 0 9 30 4:45 PM 0 0 4 1 0 3 4 0 0 0 0 0 0 0 0 0 12 31 5:00 PM 0 0 3 6 0 8 3 0 0 0 0 0 0 0 0 0 20 46 5:15 PM 0 0 2 2 0 12 2 0 0 0 0 0 0 0 0 0 18 59 5:30 PM 0 0 2 0 0 1 2 0 0 0 0 1 0 0 0 0 6 56 5:45 PM 0 0 3 3 0 1 0 0 0 0 0 0 0 0 0 0 7 51 Count Total 0 0 71 23 5 69 76 0 0 0 0 4 0 0 0 0 248 0 Peak Hour 0 0 38 8 5 31 44 0 0 0 0 0 0 0 0 0 126 0 Note: Four-hour count summary volumes include heavy vehicles but exclude bicycles in overall count. Interval Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg) Start EB WB NB SB Total EB WB NB SB Total East West North South Total 2:00 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 215PM 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 2:30 PM 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 2:45PM 0 4 0 0 4 0 0 0 0 0 0 7 0 1 8 3:00 PM 0 5 0 0 5 0 0 0 0 0 4 58 0 22 84 3.15PM 0 1 0 0 1 0 0 0 0 0 1 21 0 3 23 3:30 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3:45 PM 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 4:00 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4:15PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4:30 PM 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 4:45 PM 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 5:00 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5:15PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5:30 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5:45 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Count Total 1 11 0 0 12 1 1 0 0 2 6 86 0 26 118 Peak Hr 0 10 0 0 10 0 0 0 0 0 6 86 0 26 118 Mark Skaggs: (425) 250-0777 mark.skaggs@idaxdata.com www.idaxdata.com 8TH AVE S S 314TH ST Date: Tue, Jun 12, 2018 N Peak Hour Count Period: 2:00 PM to 6:00 PM Peak Hour: 2:30 PM to 3:30 PM ti ti m r Juj- so N (D O O 1 to U2 314TH ST 11 O i 0 9 TEV: 331 12 2 !1 q 0 c r -� 9 PHF: 0.82 7 53 35 S 314TH STn n t 17 0 L cr., O�0 0 � 8 __jj' t o w to Ln c m w o Q HV %: PHF 00 EB 0.0% 0.51 A CD WB 4.8% 0.75 o ~ Q r- NB 5.3% 0.80 SB 4.6% 0.70 TOTAL 4.2% 0.82 Four -Hour Count Summaries S 314TH ST S 314TH ST 8TH AVE S 8TH AVE S Interval Stag Eastbound Westbound Northbound Southbound 15-min Total Rolling One Hour UT LT TH RT UT LT TH RT UT LT TH RT UT LT TH RT 2:30 PM 0 0 1 0 0 1 3 0 0 8 27 3 0 0 10 1 54 0 2:45 PM 0 0 1 1 0 2 2 0 0 22 20 1 0 0 18 9 76 0 3.00 PM 0 3 3 18 0 1 3 2 0 17 35 1 0 0 12 6 101 0 3:15 PM 1 0 6 4 16 0 3 4 0 0 9 24 3 0 0 23 a 100 331 Peak Hour 1 0 9 9 35 j 0 7 12 2 0 56 106 8 0 0 63 24 1 331 1 0 Note: For atl three-hour count summary, see next page. Interval Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg) Start EB WB NB SB Total EB WB NB SB Total East West North South Total 2:30 PM 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 2:45PM 0 0 3 1 4 0 0 0 0 0 0 0 0 0 0 3:00PM 0 1 4 2 7 0 0 0 0 0 0 0 4 4 8 3:15PM 0 0 2 1 3 0 0 0 0 0 0 0 0 5 5 Peak Hour i 0 1 9 4 14 1 0 0 0 0 0 0 1 4 9 14 Mark Skaggs: (425) 250-0777 mark.skaggs@idaxdata.com www.idaxdata.com Four -Hour Count Summaries S 314TH ST S 314TH ST 8TH AVE S 8TH AVE S Rolling Interval 15-min Start Eastbound Westbound Northbound Southbound Total One Hour UT LT TH RT UT LT TH RT UT LT TH RT UT LT TH RT 2:00 PM 0 0 0 2 0 3 0 0 0 2 13 2 0 0 14 1 37 0 2:15 PM 0 1 1 1 0 1 2 0 0 6 21 1 0 1 15 2 52 0 2:30 PM 0 0 1 0 0 1 3 0 0 8 27 3 0 0 10 1 64 0 2:45 PM 0 0 1 1 0 2 2 0 0 22 20 1 0 0 18 9 76 219 3:00 PM 0 3 3 18 0 1 3 2 0 17 35 1 0 0 12 6 101 283 3:15 PM 0 6 4 16 0 3 4 0 0 9 24 3 0 0 23 8 100 331 3:30 PM 0 0 0 2 0 0 1 0 0 4 21 4 0 0 20 0 52 329 3:45 PM 0 2 2 2 0 1 1 0 0 4 19 3 0 0 22 0 56 309 4:00 PM 0 1 0 3 0 0 0 1 0 1 26 3 0 0 13 0 48 256 4:15 PM 0 0 0 2 0 0 0 1 0 3 26 3 0 2 21 0 58 214 4:30 PM 0 0 0 2 0 0 0 0 0 5 16 1 0 1 23 1 49 211 4:45 PM 0 0 0 3 0 1 1 0 0 6 15 4 0 0 15 0 45 200 5:00 PM 0 0 2 2 0 4 1 1 0 7 24 2 0 0 19 3 65 217 5:15 PM 0 0 1 1 0 0 0 0 0 11 22 1 0 0 18 3 57 216 5:30 PM 0 2 0 0 0 1 0 1 0 2 21 3 0 0 20 1 51 218 5:45 PM 0 0 2 2 0 2 0 0 0 2 16 2 0 1 16 0 43 216 Count Total 0 15 17 57 0 20 18 6 0 109 346 37 0 5 279 35 944 0 Peak Hour 0 9 9 35 0 7 12 2 0 56 106 8 0 0 63 24 331 0 Note: Four-hour count summary volumes include heavy vehicles but exclude bicycles in overall count. Interval Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg) EB WB NB SB Total EB WB NB SB Total East West North South Total Start 2:00 PM 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 2:15PM 0 1 0 0 1 0 0 0 0 0 1 0 0 0 1 2:30 PM 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 2:46 PM 0 0 3 1 4 0 0 0 0 0 0 0 0 0 0 3:00 PM 0 1 4 2 7 0 0 0 0 0 0 0 4 4 8 3:15PM 0 0 2 1 3 0 0 0 0 0 0 0 0 5 5 3:30 PM 0 0 0 ❑ 0 0 0 0 0 0 1 0 0 0 1 3:45 PM 1 0 1 1 3 0 0 0 0 0 0 0 0 0 0 4:00 PM 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 4:15PM 0 0 1 0 1 0 0 0 0 0 0 0 0 3 3 4:30 PM 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 4:45 PM 0 0 0 0 0 1 0 0 0 1 1 0 0 0 1 5:00 PM 1 0 0 0 0 0 0 0 0 0 0 2 0 0 1 3 5:15PM 0 0 C. 0 0 0 0 0 0 0 0 0 0 0 0 5:30 PM 0 0 ❑ 0 0 0 0 0 0 0 0 0 0 0 0 5:45 PM 0 0 0 ❑ 0 0 0 0 0 0 0 0 0 0 0 Count Total 1 2 13 5 21 1 0 1 0 2 5 1 4 13 23 Peak Hour 0 1 9 4 14 0 0 0 0 0 0 1 4 9 14 Mark Skaggs: (425) 250-0777 mark.skaggs@idaxdata.com www.idaxdata.com 8TH AVE S ' S 315TH ST 024 Date: Tue, Jun 12, 2018 N Peak Hour Count Period: 2:00 PM to 6:00 PM Peak Hour: 2:45 PM to 3:45 PM a'Q Ln rl Cn w � A 04 F q M O O ` L t 1 0 53i5THSi �QQQQO — -- 2 E- 22 --J TEV: 329 0 11 n 1 L" �,,, 0 • Es � Oto 6— > 0'PHF: 0.79 1-6 42 '°� p 8 S 315TH ST a 0~ Q 120 a V T O N M M! � ; o < HV %: PHF x co EB 17.2% 0.62 A 0 o WB 0.0% 0.31 O M w NB 5.8% 0.81 SB 1 7% 0.67 TOTAL 6.4% 0.79 Four -Hour Count Summaries Interval S 315TH ST S 315TH ST 8TH AVE S 8TH AVE S 15-min Rolling Eastbound Westbound Northbound Southbound Start Total One Hour UT LT TH RT UT LT TH RT UT LT TH RT UT LT TH RT 2:45 PM D 1 0 2 0 0 0 0 0 2 39 2 0 0 21 0 67 0 3:00 PM 0 10 0 15 0 4 0 5 0 0 38 3 0 3 26 0 104 0 3:15 PM 0 8 0 18 0 1 0 0 0 0 28 0 0 0 43 0 98 0 3:30 PM 0 3 0 7 0 1 0 0 0 0 27 0 0 0 22 0 60 329 Peak Hour 0 22 0 42 0 6 0 5 0 2 132 5 1 0 3 112 0 1 329 0 Note: For all three-hour count summary, see next page. Interval Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg) EB WB NB SB Total EB WB NB SB Total East West North South Total Start 2:45 PM 0 0 4 1 5 0 0 0 0 0 0 0 0 9 9 3:00 PM 6 0 2 0 a 0 0 0 0 0 3 0 0 89 92 3:15 PM 5 0 1 1 7 0 0 0 0 0 3 1 0 22 26 3:30 PM 1 0 0 1 0 1 1 0 0 ❑ 0 0 0 4 1 0 5 Peak Hour I 11 0 8 2 21 1 0 0 0 0 0 6 5 1 120 132 Mark Skaggs: (425) 250-0777 mark.skaggs@idaxdata.com www.idaxdata.com Four -Hour Count Summaries S 315TH ST S 315TH ST 8TH AVE S 8TH AVE S 15-min Rolling Interval Start Eastbound Westbound Northbound Southbound Total One Hour UT LT TH RT UT LT TH RT UT LT TH RT UT LT TH RT 2:00 PM 0 1 0 4 0 0 0 0 0 0 18 1 0 0 19 0 43 0 2:15 PM 0 3 0 2 0 0 0 0 0 0 22 0 0 0 17 0 44 0 2:30 PM 0 1 1 3 0 0 0 0 0 0 37 1 0 0 12 0 55 0 2:45 PM 0 1 0 2 0 0 0 0 0 2 39 2 0 0 21 0 67 209 100 PM 0 10 0 15 0 4 0 5 0 0 38 3 0 3 26 0 104 270 3:15 PM 0 8 0 18 0 1 O 0 0 0 28 0 0 0 43 0 98 324 3:30 PM 0 3 0 7 O 1 0 0 0 0 27 0 0 0 22 0 60 329 3:45 PM 0 1 0 4 0 0 0 1 0 1 26 0 0 1 24 0 58 320 4:00 PM 0 2 0 5 0 0 0 0 0 0 27 0 0 0 15 0 49 265 4:15 PM 0 1 0 1 0 0 0 0 0 0 31 0 0 0 24 0 57 224 4:30 PM 0 2 0 3 1 0 0 0 0 0 0 22 0 0 0 26 0 53 217 4:45 PM 0 2 0 0 0 1 0 0 0 0 25 0 0 1 19 0 48 207 5:00 PM 0 0 0 1 0 0 0 0 0 0 30 1 0 1 20 0 53 211 5:15 PM 0 4 0 4 0 1 0 0 0 0 34 0 0 0 23 0 66 220 5:30 PM 0 1 0 2 0 1 0 0 0 0 22 1 0 0 18 0 45 212 5:45 PM 0 0 0 2 0 0 0 1 0 0 22 0 0 0 21 0 46 210 Count Total 0 40 1 73 0 9 0 7 0 3 448 9 0 6 350 0 946 0 Peak Hour 0 22 0 42 0 6 0 5 0 2 132 5 0 3 112 0 329 0 Note: Four-hour count summary volumes include heavy vehicles but exclude bicycles in overall count. Interval Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg) EB WB NB SIB Total EB WB NB SB Total East West North South Total Start 2:00 PM 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 2:15PM 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 2:30 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2:45PM 0 0 4 1 5 0 0 0 0 0 0 0 0 9 9 3:00 PM 6 0 2 0 6 0 0 0 0 0 3 O 0 89 92 3:15 PM 6 0 1 1 7 0 0 0 0 0 3 1 0 22 26 3:30 PM 0 0 1 0 1 0 0 0 O 0 0 4 1 0 5 3:45 PM 0 0 0 1 1 0 0 0 0 0 0 0 0 2 2 4:00 PM 0 0 2 0 2 0 0 0 0 0 0 1 0 0 1 4:15 PM 0 0 0 0 0 0 0 0 0 0 0 f] 0 0 0 4:30 PM 0 0 1 0 1 0 1 0 0 1 0 0 0 0 0 4:45 PM 0 0 0 0 0 0 0 0 1 1 1 1 0 0 2 5:00 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 7 7 5:15PM 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 5:30 PM 0 0 0 0 0 0 0 0 0 0 3 0 0 6 9 5:45 PM 0 0 ❑ 0 0 0 0 0 0 0 0 0 0 4 4 Count Total 11 0 12 3 26 0 1 0 1 2 11 7 1 140 159 Peak Hour 11 0 8 2 21 0 0 0 0 0 6 5 1 120 132 Mark Skaggs: (425) 250-0777 mark.skaggs@idaxdata.com Location: S 314TH ST BTWN 7TH AVE S & S 315TH ST Date Range: 6/12/2018 - 6/18/2018 Site Code: 02 uja), DATA SOLUTIONS To &,J;o 71n.rte,Imv F11,1,,, !;Lfld3y W-wrr7 _ -- W1212018 8%Y1018 6N 41nis Wi5T2018 81i5r2818 W1712D18 Gpk% 43. Ltl•J Tune ES Wa Total ES W8 Total E9 We Total ES WS Totx1 EB WB Total E8 WB Total C6 WC Total Ck WE TOW 12:0D AM 3 1 4 0 2 2 0 2 2 - - - 1 2 3 1:00 AM 0 0 0 a 1 1 2 4 6 - - - 1 2 2 2:00 AM 0 1 1 0 0 0 0 1 1 - - 0 1 1 3A0 AM 0 2 2 a 0 0 1 1 2 - - 0 1 1 4;00 AM 2 2 4 3 1 4 2 2 4 2 2 4 5:00 AM 2 1 3 3 1 4 5 _ 7 3 1 6 6:00 AM 8 7 15 6 2 8 8 4 12 7 4 12 7:00 AM 20 7 27 19 9 28 10 8 16 16 a 24 8-00 AM 54 38 92 46 42 88 60 31 91 53 37 90 lkbb AM 14 6 22 4 7 11 2 4 6 7 6 13 10:00 AM 11 1 12 9 3 1'.' .+ 8 2 10 11MAM 12 10 22 10 5 1c 3 'G 10 6 16 12-00 PM 13 5 18 4 11 15 11 7 9 8 17 1mPt4 �6 5 11 20 1.1 31 10 4 14 12 7 19 2:o0 PM 15 21 36 12 22 34 14 27 41 14 23 37 100 PM 47 34 81 48 27 75 2B 26 54 41 29 70 4:00 PM 12 9 21 17 17 34 12 12 24 14 13 26 &OD PM 20 a 28 1.1 14 25 19 11 30 17 11 28 6;00 PM 7 9 16 7 8 15 15 22 37 10 13 23 7:00 PM 5 12 17 T 11 16 6 11 17 6 11 17 6-00 PM 5 6 11 11 7 18 13 6 19 10 5 16 9:00 PM 1 2 3 1 4 5 2 4 6 1 s 5 *00 PM 2 4 6 0 3 3 3 4 7 2 4 5 11;00 PM 0 i 1 1 2 3 1 2 3 t 2 2 Total 20 194 453 239 210 449 234 200 4y1 244 201 445 Pm*cent 57% 43% 53•.4 47i: 541A 4576 55% 45% 1 Mid -week average includes data between Tuesday and Thursday Mark Skaggs:425-250-0777 mark.skaggs@idaxdata.com Vehicle Speed Report Summa Location: S 314TH ST BTWN 7TH AVE S 8 S 315TH ST Count Direction: Eastbound / Westbound Date Range: 6/12/2018 to 6/1412018 Site Code: 02 WWI DATA SOLUTIONS Speed Rana mph Tote) 0-10 10.15 45.20 20.25 25-30 30.35 35-40 40-45 45.50 50.55 55.60 e0.65 65-70 70.75 75-00 60.05 85+ Volume Study Total (Eastbound 127 149 197 187 51 20 1 0 0 0 0 0 0 0 0 0 0 732 (Percent 17.3% 20.4% 26.9% 25.5% 7.0% 2.7% 0.1 % 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 100% Westbound 53 128 136 157 96 30 4 0 0 0 0 0 0 0 0 0 0 604 (Percent 8.8% 21.2% 22.5% 26.0% 15.9% 5.0% 0.7% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 100% 'rota€ 180 277 333 344 147 50 5 0 0 0 0 0 0 0 0 0 0 1,336 (Percent 13.5% 20.7% 24.9% 25.7% 11.0% 3.70/6 0.4% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 100% Toed Study Percentile Speed Summary Tate€ Study S Statistics Eastbound Eastbound 50th Percentile (Median) 17.3 mph Mean (Average) Speed 17.0 mph 85th Percentile 23.8 mph 10 mph Pace 13.9 - 23.9 mph 95th Percentile 27.4 mph Percent in Pace 54.2 % 'Westbound Westbound 50th Percentile (Median) 19.4 mph Mean (Average) Speed 19.4 mph 85th Percentile 27.3 mph 10 mph Pace 13.9 - 23.9 mph 95th Percentile 30.4 mph I Percent in Pace 49.7 % Mark Skaggs:425-250-0777 mark.skaggs@idaxdata.com Location: S 314TH ST BTWN 7TH AVE S 6 S 315TH ST Date Range: 6/1212018 to 6114/2018 Site Code: 02 Tuesday, June 12, 2018 ea)" DATA SOLUTIONS Spa ed Range (mph) TOW 71mc 0-10 10-15 15-20 20.25 25.30 30-35 35-40 40-45 45-50 50.55 55.60 60-65 65-70 70-75 75-80 80.85 85+ Volume 12:00 AM 1 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1:00 AM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2:00 AM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3:01)AM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4: ❑(] AM 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 5:00 AM 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 2 6:00AM 0 0 2 3 1 2 0 0 0 0 0 ❑ 0 0 0 0 0 8 7:00 AM ❑ 6 9 5 0 0 0 0 0 0 0 0 0 0 0 0 0 20 8:00 AM 17 20 14 3 0 0 0 0 0 0 0 0 0 0 0 0 0 54 9:00 AM 0 1 5 4 4 0 0 0 0 0 0 0 0 0 0 0 0 14 10:00 AM 1 1 4 4 1 0 0 0 0 0 0 0 0 0 0 0 0 11 11'00 AM 0 3 2 5 1 1 0 0 0 0 0 0 0 0 0 0 0 12 12:00 PM 0 2 6 3 F 1 0 ❑ 0 0 0 0 0 0 0 0 0 13 1:O0 PM 0 1 2 2 0 0 0 0 0 0 0 0 0 0 0 0 6 2:00 PM 1 4 8 1 1 0 0 ❑ 0 0 0 0 0 0 0 0 0 is 5:00 PM 15 18 3 11 0 0 0 0 0 0 0 0 0 0 0 0 0 47 4:00 PM 1 2 2 6 0 1 0 0 0 0 0 0 0 0 0 0 0 12 5:00 PM 0 2 6 12 0 0 0 0 0 0 0 0 0 0 0 0 0 20 6:00 PM 0 0 2 4 1 0 0 0 0 0 0 ❑ 0 0 0 0 0 7 7:00 PM 1 1 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 5 8!00 PM 0 0 2 3 0 0 0 0 0 0 0 0 0 0 0 0 0 5 9:00PM 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 10:00 PM 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 11:00PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ❑ 0 0 0 Total 39 62 71 69 13 5 0 a 0 0 0 0 0 0 0 0 0 259 Permnt 15.1% 23.9% 27.4v. 26.6% 5.054 1.9% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 6.6% 0.0% 0.0% 0.0% Daily Percentile Speed Summary . Speed Statistics 5Oth Percentile (Median) 17.4 mph Mean (Average) Speed 17.0 mph 85th Percentile 23.8 mph 10 mph Pace 11.4 - 21.4 mph 95th Percentile 26.0 mph Percent in Pace 56.0 % Mark Skaggs:425-250-0777 rnark-skaggs@idaxdata.com Location: S 314TH ST BTWN 7TH AVE S & S 315TH ST Date Range: 6/12/2018 to 6/14/2018 Site Code: 02 Tuesday, June 12, 2018 wa), DATA SOLUTIONS Speed Range (mph) Total Time 0-10 10-15 15-20 20-25 25-30 30-35 35-40 40.45 45.50 50-55 55-60 60-65 65.70 70-75 75-80 60-65 85+ Volume 12:00 AM 0 0 1 0 0 0 0 0 13 0 0 0 0 0 0 0 0 1 1:00 AM 0 0 0 0 0 0 0 0 0 O 0 0 0 O 0 0 0 0 2:00 AM 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 3:00 AM 0 0 1 1 0 0 0 0 0 0 a 0 0 0 0 0 D 2 4:00 AM 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 2 5:00 AM 0 0 0 0 1 0 0 0 0 0 0 0 0 Q 0 0 0 1 6A0 AM 0 0 1 2 4 0 0 0 0 0 0 0 0 0 0 0 D 7 7:00 AM 1 0 1 3 2 D 0 0 0 0 0 0 0 0 0 0 0 7 8:00 AM 6 19 8 3 1 1 0 0 0 0 0 0 0 0 0 0 0 38 SAO AM 1 1 1 4 1 0 0 0 0 0 0 0 0 0 0 0 0 a 10:00 AM 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 11:00 AM 0 2 2 5 1 0 0 0 0 0 0 0 0 0 0 0 0 10 12:00 PM 0 0 4 1 0 0 0 0 0 0 0 0 0 0 0 0 0 5 1:00 PM 0 0 4 1 0 D 0 0 0 0 0 0 0 ❑ 0 0 0 5 2:00 PM 2 7 9 3 0 0 0 0 0 0 0 0 0 0 0 0 0 21 3:00 PM 9 11 7 5 2 O 0 0 0 0 0 0 0 0 0 0 0 34 COD PM 0 0 0 5 3 1 0 0 0 0 0 0 0 0 0 0 0 9 5:00 PM 0 0 1 5 2 0 0 0 0 0 0 0 0 0 0 0 0 8 6100 PM 0 1 2 4 2 0 0 0 0 0 0 0 0 0 0 0 0 9 7:00 PM 0 2 1 4 5 0 0 D 0 0 0 0 0 0 0 0 0 12 5:00PM 0 1 1 1 2 1 0 0 0 0 0 0 0 0 0 0 0 6 9:00 PM 0 0 2 0 0 0 0 0 0 0 0 0 0 0 D 0 0 2 10:00 PM 0 0 3 1 0 0 0 0 0 0 0 0 0 0 0 0 0 4 11:00 PM 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 ME 19 44 50 48 28 5 0 O 0 0 0 0 0 0 0 0 0 194 Vervent 9.8% 22.7% 25.8% 24.7% 14.4% 2.6% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% Dal Percentile Speed Summary Speed Statistics 50th Percentile (Median) 18.3 mph Mean (Average) Speed 18.7 mph 85th Percentile 26.3 mph 10 mph Pace 13.0 - 23.0 mph 95th Percentile 28.9 mph Percent in Pace 5361 % Mark Skaggs:425-250-0777 mark.skaggs@idaxdata.com Location: S 314TH ST BTWN 7TH AVE S & S 315TH ST Date Range: 6112/2018 to 6114/2018 Site Code: 02 Wednesday, June 13, 2018 wa), DATA SOLUTIONS Speed Range (mph) Total Time 0-10 10. 15 S 5.20 20 - 2S . 25.30 30 - 35 35.40 40.45 45. 50 50.55 55 - 00 60.5S 65 - 70 70. 75 75. 60 80 - 85 85 • Vol um o 12:00 AM 0 0 0 0 0 0 0 0 0 0 0 D 0 0 0 0 0 0 1:00 AM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2:00 AM 0 0 0 0 0 0 0 0 0 0 ❑ 0 0 0 0 0 0 0 3:00 AM 0 0 0 0 0 0 0 a 0 0 0 0 0 0 0 0 0 0 COD AM 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 3 5:00 AM 0 1 1 1 0 0 0 0 0 0 0 0 0 0 ❑ 0 0 3 6:00 AM 0 0 2 3 0 1 0 0 0 0 0 0 0 0 0 0 0 6 7:D0 AM 0 2 9 6 1 1 0 0 0 0 0 0 0 0 0 0 0 19 800 AM 26 11 6 1 2 0 0 0 0 0 0 0 0 0 0 ❑ 0 46 9:00 AM 0 1 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 4 10:00 AM 0 0 4 3 2 0 0 0 0 0 0 0 0 0 0 0 0 9 11:00 AM 0 1 3 4 1 1 0 0 0 0 0 0 0 0 0 ❑ 0 10 12:00 PM 0 1 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 4 1:00 PM 0 6 5 8 0 1 0 0 0 0 0 0 0 0 0 0 0 20 2:00 PM 0 2 2 6 2 0 0 0 0 0 0 0 0 0 0 0 0 12 3:00 PM 22 10 13 1 1 1 0 0 0 0 0 0 0 ❑ 0 0 0 48 4:00 PM 1 1 2 8 2 3 0 0 0 0 0 0 0 0 0 0 0 17 5:00 PM 0 0 2 7 1 1 0 0 0 0 ❑ 0 0 0 0 0 0 11 6:00 PM 0 0 1 4 1 0 1 0 0 0 0 0 0 0 0 0 0 7 7:0D PM 0 1 4 1 1 0 0 0 0 0 0 0 0 0 0 0 0 7 8:00 PM 1 1 4 1 4 D 0 0 0 0 0 0 0 0 0 0 0 11 9:00 PM 0 1 0 0 0 0 0 O 0 0 0 0 0 0 0 0 0 1 10:00 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11:00 PM 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 otal 52 40 60 59 18 9 1 0 0 0 0 0 0 0 0 0 0 239 Percent 21.9%. 16.7% 25.1 % 24.7% 7.5% 3.8% 0,4% 0.0% 0.0% 0.07, 0.0% 0.0% 0.0% 0,0% 0.07E 041 0.0% Dairy Percentile Speed Summaq Speed Statistics 50th Percentile (Median) 17.1 mph Mean (Average) Speed 16.8 mph 85th Percentile 23.8 mph 10 mph Pace 14.5 - 24 5 mph 95th Percentile 28.5 mph Percent in Pace 51.9 % Mark Skaggs:425-250-0777 mark.skaggs@idaxdata.com Location: S 314TH ST BTWN 7TH AVE S & S 315TH ST Date Range: 6/12/2018 to 6/14/2018 Site Code: 02 Wednesday, June 13, 2018 ew. DATA SOLUTIONS 5 peed Ran go m h Total Time 0-10 10.15 15 - 20 20 - 25 25 - 30 30 - 35 35 - 40 40 - 45 45 - 50 50 - 55 55 - 60 60 - 65 65 - 70 70 - 75 75.80 80 - 85 85 + Volume 12:00 AM 6 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 2 1:00 AM 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 2:00 AM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3:00 AM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4:00 AM tit 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5:00 AM 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 6:00 AM 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 2 7:00 AM 0 1 1 4 3 0 0 C 0 0 0 0 0 0 0 0 0 9 8:00 AM 6 23 9 3 1 0 0 c 0 0 0 0 0 0 0 0 0 42 9:00 AM 1 0 2 2 2 0 0 0 0 D 0 0 0 0 0 0 0 7 10:00 AM 0 0 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 3 11:00 AM 0 0 1 2 2 0 0 0 0 0 0 0 0 0 0 0 0 5 12:00 PM 0 1 3 4 3 0 0 D 0 0 0 0 0 0 0 0 0 11 1:00 PM 0 2 5 2 0 2 0 0 0 0 0 0 0 0 0 0 0 11 2:00 PM 1 4 6 9 0 2 0 0 0 0 0 0 0 0 0 0 0 22 3:00 PM 7 10 4 2 3 1 0 0 0 0 0 0 0 0 0 0 0 27 -4:00 PM 1 1 1 5 9 0 0 0 0 0 0 0 0 0 0 0 0 17 5:00 PM 0 1 1 7 4 0 1 0 0 0 0 0 0 0 0 0 0 14 15:00 PM 0 1 1 3 1 2 0 0 0 0 0 0 0 0 0 0 0 8 7:00 PM 0 0 4 5 1 1 0 0 0 0 0 0 0 0 0 0 0 11 ,B:00 PM 0 0 0 3 3 1 0 0 0 0 0 0 0 0 0 0 0 7 9:00 PM 0 1 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 4 10:00 PM D 0 1 0 2 0 0 0 0 0 0 0 0 0 0 0 0 3 113 PM a 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 2 Total 16 45 42 55 41 9 2 0 0 0 0 0 0 0 0 0 0 210 Percent 7.6% 21.4% 20.0% 261% 19.5% 4.3% 1.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0 k D.D°% 0.0% 0.0% 0.0% Dail Percentile Speed Summary Se! ad Statistics 5Oth Percentile (Median) 20.1 mph Mean (Average) Speed 19.8 mph 85th Percentile 27.8 mph 10 mph Pace 12.5 - 22 5 mph 95th Percentile 30.6 mph Percent in Pace 48.57 % Mark Skaggs:425-250-0777 mark.skaggs@idaxdata.com Location: S 314TH ST BTWN 7TH AVE S & S 315TH ST Date Range: 6/12/2018 to 611412018 Site Code: 02 Thursday, June 14, 2018 ea). DATA SOLUTIONS Speed Range m h Total Time 0. 10 10 -15 t 5 - 20 20 - 25 25 . 30 80 - 35 35 - 40 40.45 45.50 SO -56 55.60 60 - 65 66.10 70 - 75 75.80 SS - 85 854 Volume 12:00 AM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1:00 AM 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2:00 AM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3A0 AM 0 D 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4:(10 AM 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 5:00 AM 0 1 0 3 1 0 0 0 0 0 0 0 0 0 0 0 0 5 6:00 AM 0 0 3 3 1 1 0 0 0 0 0 0 0 0 D 0 0 8 7:00 AM 0 1 6 1 1 1 0 0 0 0 0 0 0 0 0 0 0 10 S:00 AM 20 22 13 3 2 0 0 0 0 0 0 0 0 0 D 0 0 60 9:00 AM 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 10:00 AM 0 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 .3 11:00 AM 0 1 2 3 1 0 0 0 0 0 0 0 0 0 0 0 0 7 12:00 PM 0 2 1 5 3 0 0 0 0 0 0 0 0 0 0 0 0 11 1:00 PM 0 0 6 3 0 1 0 0 0 0 D 0 0 0 0 0 0 10 2:00 PM 1 4 7 2 0 0 0 0 0 0 0 0 0 0 0 0 0 14 3-00 PM 12 7 2 7 0 0 0 0 0 0 a 0 0 0 0 0 0 28 4;00 PM 0 3 3 5 1 0 0 0 C 0 0 0 0 0 0 0 0 12 5:00 PM 0 3 7 5 3 1 0 0 0 0 0 0 0 0 0 0 0 19 6100 PM 0 0 7 5 3 0 0 0 0 0 0 0 0 0 0 0 0 15 7:00 PM 1 D 2 2 1 0 0 0 1) 0 0 0 0 0 0 0 0 6 0:00 PM 0 1 2 6 2 2 0 0 0 0 0 0 0 0 0 0 0 13 S:OD PM 0 0 0 1 1 0 0 0 0 0 0 0 0 0 tl 0 0 2 10:00 PM 1 0 1 .1 0 0 0 0 ] 0 0 0 0 0 0 0 0 3 11:00 PM 0 0 0 i11 0 0 0 0 0 0 0 11 0 0 0 0 1 Total 36 47 66 S9 20 6 0 0 0 0 0 0 0 0 0 0 0 234 Percent 15.4% 20.1 % 28.2% 25.2% 8.5% 2.61 0.0% 0.0% 0.0 % 0.01 0.0% 0.0% 0.0% 0.0% 0.0°1: v.v% 0.096 Daily Percentile Speed Summary I Speed Statistics 50th Percentile (Median) 17.4 mph Mean (Average) Speed 17.3 mph 85th Percentile 23.9 mph 10 mph Pace 13.4 - 23.4 mph 95th Percentile 27.3 mph Percent in Pace 59.0 % Mark Skaggs:425-250-0777 mark.skaggs@idaxdata.com Location: S 314TH ST BTWN TTH AVE S & S 31 STH ST Date Range: 611212018 to 6114i2018 Site Code: 02 Thuraday, June 14, 2018 W—th i-A Y WW.k DATA SOLUTIONS Speed Range (mph) Total Time 0-10 10.15 15-20 20-26 25-30 30-35 35-40 40-45 45.50 50.55 55-60 60-65 65.70 70-75 75.90 80.85 85+ Volume 12:00 AM 0 0 1 0 1 G 0 0 0 0 0 0 0 0 0 0 0 2 1:00 AM 0 0 3 0 .0 1 0 0 0 0 0 0 0 0 a 0 0 4 Z00 AM 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 3:00 AM 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4A0 AAA a 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 2 5:00AM 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 2 6A0 AM 0 0 0 1 3 0 0 a 0 0 0 0 0 0 a 0 0 4 7:00 AM 0 0 1 3 2 2 0 0 0 0 0 0 0 0. 0 0 a 8 8:00 AM 4 16 8 3 0 0 0 0 0 0 0 0 0 0 0 0 0 31 9:00 AM 0 1 f 1 1 0 0 0 0 0 0 0 0 0 0 0 0 4 10'00 AM 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 2 11100 AM 0 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 3 12:00 PM 0 0 2 5 0 0 0 0 0 0 0 0 0 0 0 0 0 7 111OPM 0 0 2 0 0 1 1 0 0 0 0 0 0 4 0 0 0 4 2:00 PM 1 9 10 6 1 0 0 0 0 a 0 0 0 0 0 0 0 27 3:00 PM 11 7 2 3 2 1 0 0 0 0 0 0 0 0 0 0 0 26 4:00 PM 0 2 1 6 2 1 0 0 0 0 0 0 0 0 0 0 0 12 5:00 PM 0 1 3 4 3 0 0 0 0 0 0 0 0 0 0 0 0 11 6:00 PM 1 0 4 8 5 4 0 0 0 a 0 0 0 0 0 0 0 22 7A0 PM 0 3 1 3 3 1 0 0 0 0 0 0 0 0 0 0 0 11 8100 PM 0 0 0 1 2 2 1 0 0 a 0 0 0 0 a 0 0 6 9:00 PM 0 0 1 2 0 1 0 0 0 0 0 0 0 0 0 0 0 A 10:00 PM 1 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 4 11:00 PM 0 a 0 0 1 0 0 a 0 0 0 0 0 0 0 0 2 Totat to 39 44 54 27 is 2 a 0 0 0 0 0 0 0 0 0 200 Percent 9.0% 19.5 % 22.0 : 27.0% 13.5% a.0 % 1.0% 0.0% 0.0% 0.0% 0.0% 10Y 0.0% 0.0 % 0.01% 0.0% 0.0% Dal{ Percentile Speed Summary Speed StaUsUcs 50th Percentile (Median) 19,8 mph Mean (Average) Speed 19.5 mph 85th Percentile 27.8 mph 10 mph Pace 15.3 - 25.3 mph 95th Percentile 31 A mph Percent in Pace 49.5 % Mark Skaggs:425-250.0777 mark.skaggs&daxdata.c m Location: S 314TH ST BTWN 7TH AVE S & S 315TH ST Date Range: 6/12/2018 to 6/14/2018 Site Code: 02 Total Study Average WWI. DATA SOLUTIONS 5 peed Ran ge mph That Time 0 . 10 10. 15 15.20 20 - 25 25 - 30 30 - 35 35 .40 40 .45 45 - 50 50 .55 55 .60 60 - 65 65 - 70 70 - 75 75.80 60. 65 55 + Volume 12:00 AM 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1:00 AM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2-00 AM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3:00 AM 0 0 0 0 0 0 6 0 0 0 7 0 0 0 0 0 0 0 4-00 AM 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 5:00AM 0 1 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 4 6:00AM 0 0 2 3 1 1 0 0 0 0 0 0 0 0 0 0 0 7 7:00 AM 0 3 8 4 1 1 0 0 0 0 0 0 0 0 0 0 0 17 8%00 AM 21 18 11 2 1 0 0 0 0 0 0 0 0 0 0 0 0 53 9:00 AM 0 1 3 2 1 0 0 0 0 0 0 0 0 0 0 0 0 7 10-00 AM 0 0 3 3 1 0 0 0 0 0 0 0 a 0 0 0 0 7 11-00 AM 0 2 2 4 1 1 0 0 a 0 0 0 0 0 0 0 0 10 1100 PM 0 2 3 3 1 0 0 0 0 0 0 0 0 0 0 0 0 9 1700 PM 0 2 4 4 0 1 0 0 0 0 0 0 0 0 0 0 0 11 2:00 PM 1 3 6 3 1 0 0 0 0 0 0 0 0 0 0 0 0 14 3:00 PM 16 12 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 40 4A0 PM 1 2 2 6 1 1 0 0 0 0 0 0 0 0 0 0 0 13 5:00 PM 0 2 5 a 1 1 0 0 0 0 0 0 0 0 0 0 0 17 6-00 PM 0 0 3 4 2 0 0 0 0 0 0 0 0 0 0 0 0 9 7:00 PM 1 1 2 1 1 0 0 0 0 0 0 0 0 0 0 0 0 6 800PM 0 1 3 3 2 1 0 0 0 0 0 0 0 0 0 0 0 10 9.1110 PM 0 0 0 1 0 0 0 0 Q 0 a 0 0 0 0 0 0 1 10:00 PM 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 11:00 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 MI 41 51 66 59 15 7 0 a 0 0 0 0 0 0 0 0 0 239 Percent 17.21/� 21.314 27.6% 24.7% 6.3% 2.3% CA% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% Note: Average only condsidered on days with 24-hours of data. Total Study Percentile Speed Summary Total Study Speed Statlstics 50th Percentile (Median) 17.3 mph Mean (Average) Speed 17.0 ]�ph 85th Percentile 23.8 mph 10 mph Pace 13.9 - 23.9 95th Percentile 27.4 mph Percent in Pace 54.2 Mark Skaggs:425-250-0777 mark.skaggs@idaxdata corn Location: S 314TH ST BTWN 7TH AVE S & S 315TH ST Date Range: 611212018 to 611412018 Site Code: 02 Total Study Average Wncth end ilada), DATA SOLUTIONS Speed Ran e (mph) Total Time 0-10 10-15 15.20 20.25 25.30 30.35 35.40 40.45 45-50 50.55 55.60 60.65 65-70 70.75 75-80 80-85 85• Volume 12'00 AM 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 n 2 1=AM 0 0 1 0 D 0 0 0 0 0 0 0 0 0 0 0 0 1 2:00 AM 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 3:D0 AM 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4: GO AM 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5:00 AM 0 0 0 0 1 0 Q 0 0 0 0 0 0 0 0 0 0 1 6:00 AM 0 0 0 1 3 0 0 0 0 0 0 0 0 0 0 Q 0 4 7.100 AM 0 0 1 3 2 1 0 0 0 0 0 0 0 0 0 0 0 7 8:00 AM 5 19 8 3 1 0 0 0 0 0 0 0 0 0 0 0 0 36 9:00 AM 1 1 1 2 1 0 0 0 0 0 0 0 0 D 0 0 0 6 10:00 AM 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 2 11:00 AM 0 1 2 3 1 0 0 0 0 0 0 0 0 0 0 0 0 7 12:00 PM 0 0 3 3 1 0 0 0 0 0 0 0 0 0 0 0 0 7 Izoo PM 0 1 4 1 0 1 0 0 0 0 0 0 0 0 0 0 0 7 2:00 PM 1 7 8 6 0 1 0 0 0 0 0 0 0 0 0 0 0 23 3100 PM 9 9 4 3 2 1 0 0 0 0 0 0 0 0 0 0 0 28 4A0 PM 0 1 1 5 5 1 0 0 0 0 0 0 0 0 0 0 0 13 5:00PM 0 1 2 5 3 0 0 0 0 0 0 0 0 0 0 0 0 11 6:00 PM 0 1 2 5 3 2 0 0 0 0 0 0 0 0 0 0 0 13 71,00 PM 0 2 2 4 3 1 0 0 0 0 0 0 0 0 0 0 0 12 &00 PM 0 0 0 2 2 1 0 0 0 0 0 ❑ 0 0 0 0 0 5 9:00 PM 0 0 2 1 0 Q 0 0 a 0 0 0 0 ❑ 0 0 0 3 10:00 PM 0 0 2 1 1 0 0 0 0 0 0 0 0 0 0 0 0 4 11:00 PM 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 Telal 16 43 45 51 31 10 0 0 0 D o 0 0 0 0 0 0 196 Percent "% 21.9% 23A% 2&D% 15.89% 5.19E 0.0% 0.09E 0A% 0.0% 0A% 0.0% 0.09E 0,0% 0.0% 0.0% 0.0% Note: Average only condsidered on days with 24-hours of data Total Study Percentile Speed Summary Total Study Speed Statistics 50th Percentile (Median) 19.4 mph Mean (Average) Speed 19.4 mph 85th Percentile 27.3 mph 10 mph Pace 13.9 - 23.9 mph 95th Percentile 30.4 mph Percent in Pace 497 9/6 Mark Skaggs:425-250-0777 mark skaggs@idaxdata.com Location: 8TH AVE S BTWN S 314TH ST & S 315TH ST Date Range: 6/1212016-6118/2018 Site Code: 03 Wax DATA SOLUTIONS Tunrfay Wedn"da Thun;day FrIginr Smurday Sunda 12 BAnD18 Ed I31X018 811412018 61.1S12a1a 6f16=18 0l712018 6l1812013 Mid-W"kA- Time Ne 98 TOW NU 58 Tvtal Nil 80 Total NS SB TCUI His $B TvWI NB SB Tolnl No s81 Tatnl 6l9 98 Tot.1 12 00 AM 7 12 19 14 5 19 10 7 17 10 8 18 1:00 AM 2 5 7 5 6 11 8 2 10 5 4 9 2:00 AM 2 2 4 7 5 12 7 2 9 5 3 8 3:00 AM 2 1 3 3 S 8 2 2 4 2 3 5 a OO AM 13 9 22 7 n 15 6 11 17 9 9 18 6,00 AM 31 13 44 35 18 53 38 14 52 35 15 50 6'00 AM 60 23 83 66 27 93 66 27 93 64 26 90 7:00 AM 135 45 180 105 51 156 107 52 159 116 49 165 8:00 AM 181 81 262 178 87 265 172 76 248 177 81 258 9:00 AM 75 67 142 58 43 101 55 48 103 63 53 115 10:00 AM 75 51 126 82 52 134 67 44 ill 75 49 124 11:00 AM 05 41 136 89 53 142 87 46 133 90 47 137 12:00 PM 80 68 148 90 69 159 91 65 156 87 67 154 1:00 PM 80 58 138 77 67 144 118 56 174 92 60 152 2:00 PM 123 67 190 119 72 191 142 79 221 128 73 201 3:00 PM 151 115 266 137 119 256 153 107 260 147 114 261 4:00 PM 115 86 201 106 93 199 131 105 236 117 95 212 51,00 PM 115 91 206 104 104 208 154 84 238 124 93 217 8'00 PM 105 80 185 92 84 176 126 78 204 108 81 186 7-W PM 77 58 135 73 56 129 90 70 160 80 61 141 a:00 PM 54 50 104 67 62 129 77 55 132 66 56 122 91.00 PM 37 1B 55 46 29 75 40 41 81 41 29 70 10:00 PM 24 16 40 31 17 48 33 31 64 29 21 51 11:00 PM 13 5 18 12 13 25 17 17 34 14 12 26 TDW 1,652 1,062 I714 1 603 1.143 2.748 1.797 1,119 2 916 1,04 1.109 2793 Pm.nt 61% W% 54% 42% 62% 34% W% 4W 1. Mid -week average includes data between Tuesday and Thursday. Mark Skaggs:425-250-0777 mark.skaggs@idaxdata.com Vehicle Speed Report Summary Location: 8TH AVE S BTWN S 314TH ST & S 315TH ST Count Direction: Northbound / Southbound Date Range: 6/12/2018 to 6/14/2018 Site Code: 03 owl'. DATA SOLUTIONS Speed Range (mfkN Total D - 10 ill -15 15 -20 20.25 2S - 30 30 - 35 35 - 40 40 - A5 45 - 50 50.55 55.60 60 - 65 65 - 70 70 .75 75.00 80 - 85 65 + volume - Study Total Northbound Percent 25 0.5% 106 2.1 % 709 14.0% 2,015 39.9% 1,707 33.8% 432 8.6% 49 1.0 % 7 2 0.1 % 0.0% 0 0.0 % 0 0.0 % 0 0.0% 0 0.0 % 0 0.0% 0 0.0% 0 0.0% 0 0.0% 5,052 100 % Southbound Percent 26 0.8 % 86 2.6% 474 14.3 % 1,257 37.8% 1,160 34.9 % 284 8.5 % 35 1.1 % 4 0 0.1 % 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0% 3,326 100 % 'Total Percent 51 0.6% 192 2.3 % 1,183 14.1 % 3,272 39.1 % 2,867 34.2% 716 8.5 % 84 1.0% 11 2 0.1 % 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0% 8,378 100% Total Study Percentile Speed Summary Total Study Speed Statistics Northbound Northbound 50th Percentile (Median) 24.3 mph Mean (Average) Speed 24.2 mph 85th Percentile 28.8 mph 10 mph Pace 19.6 - 29.6 mph 95th Percentile 31.7 mph Percent in Pace 74.4 % Southbound Southbound 50th Percentile (Median) 24.4 mph Mean (Average) Speed 24.2 mph 85th Percentile 28.9 mph 10 mph Pace 19 3 - 29.3 mph 95th Percentile 31.6 mph I Percent Yn Pace 73.1 % Mark Skaggs:425-250-0777 mark.skaggs@idaxdata.com Location: 8TH AVE S BTWN S 314TH ST & S 315TH ST Date Range: 6112/2018 to 6/1412018 Site Code: 03 Tuesday, June 12, 2018 Ldw, DATA SOLUTIONS S paed Range m h Total Time 0-10 10.15 15-20 20.25 25-30 30.3S 35-40 40-45 45-59 50-SS SS -GO 60-65 65-70 70-75 75-80 BO-B5 85• VoEurne 12:00 AM 1 n 0 3 1 2 0 0 0 0 0 0 0 0 0 0 0 7 1:00 AM 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2:D0 AM 0 .. 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 2 5:00 AM 0 0 0 2 0 0 D 0 0 0 0 0 0 0 0 0 0 2 4:00 AM 0 ., 1 3 6 3 0 0 0 0 0 0 0 0 0 0 0 13 5:00 AM 0 0 7 13 8 2 0 0 0 0 0 0 0 0 0 0 31 6:00 AM 0 1 2 22 27 7 1 0 0 0 0 0 D 0 0 0 0 60 TOD AM 0 1 8 44 62 19 1 0 0 0 0 0 0 0 0 0 0 135 &W AM 1 9 61 75 28 7 0 0 0 0 0 0 0 0 0 0 0 181 9:00 AM 0 0 2 34 29 a 2 0 0 0 0 0 0 0 0 0 0 75 10:00 AM 0 0 7 34 29 5 0 0 0 0 0 0 0 0 0 0 0 75 1 V00 AM 0 D 14 36 36 7 1 1 0 0 0 0 0 0 0 0 0 95 12;00 PM 0 3 11 39 22 5 0 0 0 D 0 0 D 0 0 0 0 80 1:00 PM 1 0 7 29 39 3 1 0 0 0 0 0 0 0 0 0 0 80 2:00 PM 1 6 21 58 30 5 2 0 0 0 0 0 D 0 0 0 0 123 3:00 PM 0 6 50 62 26 6 1 0 0 ❑ 0 0 0 0 0 0 0 151 4:00 PM 1 2 11 55 39 5 2 0 0 0 0 0 0 0 0 0 0 115 5:00 PM 1 1 12 44 44 13 0 0 0 a 0 0 0 0 0 0 0 115 6:00 PM 1 1 6 38 49 9 1 0 0 0 0 0 ❑ 0 0 0 0 105 7:00 PM 0 0 6 28 31 12 0 0 0 0 0 0 0 0 0 0 0 77 8:00 PM 0 0 5 24 17 7 0 1 0 0 0 0 0 0 0 0 0 54 9:00 PM 0 0 3 10 17 6 1 0 0 0 0 0 0 0 0 0 0 37 10:00 PM 0 0 2 10 a 4 0 0 0 0 0 0 0 0 0 0 0 24 1 V00 PM 0 0 0 a 3 i 1 0 0 0 0 0 0 0 0 0 0 13 Total 7 31 231 06S 557 142 17 2 0 0 0 0 0 0 0 0 0 1.652 Perceni 0.4% 1.9% 14.0% 40.3% 33.7% 8.6% 1.0% 0.1 % 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% Daily Percentile Speed Summary Speed Statistics 50th Percentile (Median) 24.3 mph Mean (Average) Speed 24.3 mph 85th Percentile 29.0 mph 10 mph Pace 19.6 - 29.6 mph 95th Percentile 31.5 mph Percent in Pace 74.2 % Mark Skaggs:425-250-0777 mark.skaggs@idaxdata.com Location: 8TH AVE S BTWN S 314TH ST & S 315TH ST WWI Date Range: 6/12/2018 to 6/14/2018 DATA SOLUTIONS Site Code: 03 Tuesday, June 12, 2018 CnuThhnunrI Speed Range mph) Total Time 0-10 10 •15 15 - 20 20.2S 25 - $0 30 - 35 35 - 40 40 - 45 45 - 50 50 - 55 55 - 60 60 - 65 65.70 70.75 75 - 80 80 - 85 85 • Volume 12:00 AM 0 0 0 3 6 3 0 0 0 0 0 0 0 0 0 0 0 12 1:00 AM 0 0 0 1 2 1 0 1 0 0 0 0 0 0 0 0 0 5 2:00 AM 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 2 3:00 AM 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 4:00 AM 0 0 1 4 4 0 0 0 0 0 0 0 0 0 0 0 0 9 5:D0 AM 0 0 0 5 5 2 1 0 0 0 0 0 0 0 0 0 0 13 800 AM 0 1 1 4 8 8 1 0 0 0 0 0 0 0 a 0 0 23 7:00 AM 0 0 3 12 21 7 2 0 0 0 0 0 0 0 0 0 0 45 B;00 AM 2 4 31 32 10 1 1 0 0 0 0 0 0 0 0 0 0 81 5,00 AM 0 0 5 22 30 8 2 0 0 0 0 0 0 0 0 0 0 67 10:00 AM 1 0 5 14 24 6 1 0 D 0 0 0 0 0 0 0 0 51 11:00 AM 0 0 7 17 13 4 0 0 0 0 0 0 0 0 0 0 0 41 12:00 PM 1 3 10 35 17 2 0 0 0 0 0 0 0 0 0 0 0 68 1:00 PM 0 0 5 26 22 4 1 0 0 0 0 0 0 0 0 0 0 58 2:00 PM 1 0 8 25 27 6 0 0 0 0 0 0 0 0 0 0 0 67 3:00 PM 5 11 33 43 21 2 0 0 0 0 0 0 0 0 0 0 0 115 COD PM 1 2 4 39 30 9 1 0 0 0 0 0 0 0 0 0 0 86 5:00 PM 2 1 7 27 39 11 4 0 0 0 0 0 0 0 0 0 D 91 6:00 PM 0 2 8 26 31 13 0 0 0 0 0 0 0 0 0 0 0 80 7:00 PM 0 3 5 18 25 6 1 0 0 0 0 0 0 0 0 0 0 58 6100 PM 0 1 10 19 17 3 0 0 0 0 0 0 0 0 0 0 0 50 9:00 PM 0 1 1 7 8 1 0 0 0 0 0 0 0 0 0 0 0 18 I O:QO PM 0 0 0 5 7 2 2 0 0 0 0 0 0 0 0 a 0 16 1100 PM 0 0� 0 2 3 0 0 0 0 0 0 0 0 0 0 0 0 5 Total 13 29 144 386 372 100 17 1 0 0 0 0 0 0 0 0 0 1,062 Penxn! 1.2`0 2.7 a 13.6% 363,. 35.0V 9.4% 1.6% 0.1% 0.0% 0.03e 0.0 % 0.014 0.a% 0,13% 0.0If. 0.0% 0.0% Daily Percentile Speed Summary I Speed Statistics 50th Percentile (Median) 24.6 mph Mean (Average) Speed 24 3 mph 85th Percentile 29.0 mph 10 mph Pace 19 3 - 29 3 mph 95th Percentile 31.7 mph Percent in Pace 72.13 Mark Skaggs:425-250-0777 mark. skaggs@idaxdata.com Location: 8TH AVE S BTWN S 314TH ST & S 315TH ST Date Range: 6/12/2018 to 6/1412018 Site Code: 03 Wednesday, June 13, 2018 WWI;. DATA SOLUTIONS speed Range m h Total Time 0-10 10.1 S 15.20 20 -25 25.30 30 -3S 35 - 40 40 - 45 45 -50 50 - 55 55.60 60 •65 65.70 70 - 75 75 - 60 80 - 85 85 • Volume 12:00 AM 0 1 0 4 5 4 0 0 0 0 0 0 0 0 0 0 0 14 1:00 AM 0 0 0 1 2 2 0 0 0 0 0 0 0 0 0 0 0 S 2:00 AM 0 0 1 0 4 1 1 0 0 0 0 0 0 0 0 0 0 7 3:00 AM 0 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 3 4:00 AM 0 0 0 1 6 0 0 0 0 0 0 0 0 0 0 0 0 7 5,00 AM 0 0 1 6 16 12 0 0 0 0 0 0 0 0 0 0 0 35 &00 AM 0 2 3 26 26 6 2 1 0 0 0 0 0 0 0 0 0 66 7:00 AM 0 0 6 41 46 12 0 0 0 0 0 0 0 0 0 0 0 105 0:00 AM 9 11 70 64 22 1 1 0 0 0 0 0 0 0 0 0 0 178 9:00 AM 0 2 5 23 26 2 0 0 0 0 0 0 0 0 0 0 0 58 10:00 AM 0 2 10 41 21 5 2 1 0 0 0 0 0 0 0 0 0 82 11:00 AM 0 0 7 39 34 9 0 0 0 0 0 0 0 0 0 0 0 69 12:00 PM 0 0 5 52 24 8 1 0 0 0 0 0 0 0 0 0 0 90 1:00 PM 0 1 4 34 29 9 0 0 0 0 0 0 0 0 0 0 0 77 2:00 PM 0 0 21 53 37 6 2 0 0 0 0 0 0 0 0 0 0 119 3:00 PM 0 t0 39 58 25 5 0 0 0 0 0 0 0 0 0 0 0 137 4:00 PM 0 2 11 43 33 17 0 0 0 0 0 0 0 0 0 0 0 106 5:00 PM 0 0 9 26 52 16 1 0 0 0 0 0 0 0 0 0 0 104 6MG PM 0 3 4 25 41 16 2 0 1 0 0 0 0 0 0 0 0 92 7:00 PM 2 0 8 25 32 5 1 0 0 0 0 0 0 0 0 0 0 73 8:00 PM 0 2 2 35 21 6 1 0 0 0 0 0 0 0 0 0 0 67 900 PM 0 0 7 14 15 8 2 0 0 0 0 0 0 0 0 0 0 46 10:00 PM 0 0 3 10 14 2 1 1 0 0 0 0 0 0 0 0 0 31 11:00 PM 0 0 ❑ 3 8 1 0 0 0 0 0 0 0 0 0 ❑ i] 12 Telal. 11 37 216 62S 540 153 17 3 1 0 0 0 0 0 0 0 0 1.603 Percent 0.7% 2.3% 13.5% 39.0% 33.7% 9.5% 1.1 % 0.2% 0.1% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% pal Paro"Ife Speed Summary Spend Statistics 50th Percentile (Median) 24.4 mph Mean (Average) Speed 24.4 mph 85th Percentile 29.2 mph 10 mph Pace 19.6 - 29.6 mph 95th Percentile 32.1 mph Percent in Pace 73.1 Mark Skaggs:425-250-0777 mark, skaggs@idaxdata.com Location: 8TH AVE S BTWN S 314TH ST & S 315TH ST Date Range: 6/1212018 to 611412018 Site Code: 03 Wednesday, June 13, 2018 V wwlli DATA SOLUTIONS Seed RanSe mph Total Ttma 0-10 10,15 15 - 20 20 - 25 25 - 30 30 - 35 35 - 40 40 - 45 45.50 50 -55 55 - 60 60 - 65 65 - 70 70 - 75 75 - 80 80.85 BS + Volume 12:00 AM 0 0 0 0 2 2 1 0 0 0 0 0 0 0 0 0 0 5 1:00 AM 1 0 1 1 3 0 0 0 0 0 0 0 0 0 0 0 0 6 2:00 AM 0 0 1 1 1 0 2 0 0 0 0 0 0 0 0 0 0 5 3:00 AM 0 0 2 0 2 1 0 0 0 0 0 0 0 0 0 0 0 5 4:00 AM 0 0 0 3 4 1 0 0 0 0 0 0 0 0 0 0 0 8 5:00 AM 0 0 1 4 10 3 0 0 0 0 0 0 0 0 0 0 0 18 6.00 AM 0 2 5 6 10 4 0 0 0 0 0 0 0 0 1D 0 0 27 7:00 AM 0 1 4 18 23 4 1 0 0 0 0 0 0 0 0 0 0 51 5:00 AM 0 8 38 32 8 1 0 0 0 0 0 0 0 0 0 0 0 87 9:00 AM 0 2 2 19 15 4 t 0 0 0 0 0 0 0 0 0 0 43 IMOD AM 0 1 10 23 16 2 0 0 0 0 0 0 0 0 0 0 0 52 11 A0 AM 1 0 8 26 17 1 0 0 0 0 0 0 0 0 0 0 0 53 12:00 PM 0 2 12 34 16 4 1 0 0 0 0 0 0 0 0 0 D 69 1:00 PM 0 0 7 23 27 10 0 0 0 0 0 0 0 0 0 0 0 67 2:00 PM 0 0 6 23 37 6 0 0 0 0 0 0 0 0 0 0 D 72 100 PM 1 tO 37 49 20 2 0 0 0 0 6 0 0 0 0 0 0 119 4:0O PM 0 1 5 40 40 7 0 0 0 0 0 0 0 0 0 0 0 93 5:00 PM 0 1 6 27 58 9 2 1 0 0 0 0 0 0 0 0 0 104 6:00 PM 0 0 2 24 41 16 1 0 0 0 0 0 0 0 0 0 0 84 7:00 PM 2 1 1 22 25 4 1 0 0 0 0 0 0 0 0 0 0 56 8:00 PM 0 0 11 26 18 7 D 0 0 0 0 0 0 0 0 0 0 62 9:00 PM 0 0 3 16 5 5 0 0 0 0 0 0 0 0 0 0 0 29 10:00 PM 0 0 0 5 11 1 0 0 0 0 0 0 0 0 0 0 0 17 11:00 PM 0 0 1 2 0 2 0 0 0 0 0 0 0 0 u ❑ 0 13 Total 5 29 163 424 417 96 10 1 0 0 0 0 0 0 0 0 0 1,145 Percent 0A% 2.S% 14.2% 37.0% 36.4% BA% 0.9% 0.11 0.0% ❑AI/u 0.014 0.0% 0.0% 0.0% 0,0% 0-8% 0.0% DalPercentile Speed Summary Speed SwUstics 50th Percentile (Median) 24.6 mph Mean (Average) Speed 24.3 mph 85th Percentile 29.0 mph 10 mph Pace 20.0 - 30 0 mph 95th Percentile 31.5 mph Percent in Pace 73.54 % Mark Skaggs:425-250-0777 mark.skaggs@idaxdata.com Location: STH AVE S BTWN S 314TH ST & S 315TH ST Date Range: 6/12/2018 to 6114/2018 Site Code: 03 Thursday, June 14, 2018 M..whk .,..a DATA SOLUTIONS Speed Range m h Total Time 0.10 10 -15 15 - 20 20 - 25 25 - 30 30 - 35 35 - 40 40 - 45 45 - 50 50 - 55 SS - 60 60.65 65.10 70 -75 75.80 80 - 85 85 • Volume 12:00 AM 0 0 2 2 6 0 0 0 0 0 0 0 0 0 0 0 0 10 1:00 AM 0 0 0 3 1 4 0 0 0 ❑ 0 0 0 0 0 0 0 8 2:00 AM 0 0 0 1 4 2 0 0 0 0 0 0 0 0 0 0 0 7 3AI) AM 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 2 4:00 AM 0 0 0 4 2 0 0 0 0 0 0 0 0 0 0 0 0 6 5:00 AM 0 0 2 8 19 8 1 0 0 0 0 0 0 0 0 0 0 38 6:00 AM 1 1 3 23 31 4 2 1 0 0 0 0 0 0 0 0 0 66 7:00 AM 0 0 3 43 45 15 1 0 0 0 0 0 0 0 0 0 0 107 8:00 AM 0 13 80 57 16 4 2 0 0 0 0 0 0 0 0 0 0 172 9:00 AM 3 1 8 20 16 4 2 T 0 0 0 0 0 0 0 0 0 55 10:00 AM 0 0 9 25 26 4 1 0 0 0 0 0 0 0 0 0 0 67 11--00 AM 0 0 10 32 34 10 1 0 0 0 0 0 0 0 0 0 0 87 12:00 PM 0 0 5 37 39 10 0 0 0 0 0 0 0 0 0 0 0 91 1:00 PM 1 2 9 48 49 9 0 0 0 0 0 ❑ 0 0 0 0 0 lie 2A0 PM 0 1 31 69 38 3 0 0 0 0 0 0 0 0 0 0 0 142 3:00 PM 0 11 39 66 31 6 0 0 0 0 0 0 0 0 0 0 0 153 4:00 PM 0 2 17 64 42 6 0 0 0 0 0 0 0 0 0 0 0 131 5:00 PM 0 2 16 68 56 11 1 0 0 0 0 0 0 0 0 0 0 154 6:00 PM 1 1 5 48 59 12 0 0 0 0 0 0 0 0 0 0 0 126 7A9 PM 0 2 15 41 24 7 1 0 0 0 0 0 0 0 0 0 0 90 8:00 PM 0 0 2 30 36 7 2 0 0 0 0 0 0 0 0 0 0 77 9:00 PM 1 2 4 17 11 4 0 0 1 0 0 0 0 0 0 0 0 40 10:00 PM 0 0 2 11 16 4 0 0 0 0 0 0 0 0 0 0 0 33 1100 PM 0 0 0 6 7 3 1 0 0 ❑ 0 0 0 0 0 0 0 j 17 eta3 7 38 262 725 610 437 15 2 1 0 0 0 0 0 0 0 0 1,797 percem 0.4% 2A% 14.6% 40.3% 33.9% 7.6% 0.8% 0.1% 0.1% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0A% 0.0% DaUX percentile Speed Summary StaMcs -Speed 50th Percentile (Median) 24.0 mph Mean (Average) Speed 24.1 mph 85th Percentile 28.4 mph 10 mph Pace 18.8 - 28.8 mph 95th Percentile 31.7 mph Percent in Pace 76.3 % Mark Skaggs:425-250-0777 mark.skaggs@idaxdata.com Location: 8TH AVE S BTWN S 314TH ST & S 315TH ST Date Range: 6/12/2018 to 6/14/2018 Site Code: 03 Thursday, June 14, 2018 c..,,ttiti..,,..a ww. DATA SOLUTIONS Speed Ran e m Total Time 0-10 10-16 15 •2a 20 - 25 25 - 30 30 - 35 35.40 40 - 45 45.50 50 - 55 55 - 60 60 - 65 65 - 70 70 -75 75.80 80.65 85 + Volume 12:00 AM 0 0 1 5 1 0 0 0 0 0 0 D 0 0 0 0 0 7 1:00 AM 0 a 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 2 2:00 AM 0 0 1 1 0 0 0 0 D 0 0 0 0 0 0 0 0 2 3:00 AM 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 2 :00 AM 0 0 1 5 5 0 0 a 0 0 0 D 0 0 0 0 0 11 5:00 AM 0 0 0 3 9 2 0 0 0 0 0 0 0 0 0 0 0 14 6:00 AM 0 _ 3 9 10 3 0 D 0 0 0 0 0 0 0 0 0 27 7:00 AM 0 9 13 24 5 0 0 0 0 0 0 0 0 0 0 0 52 8:00 AM 0 •s 29 22 17 4 0 0 0 0 0 0 0 0 0 0 0 76 9:00 AM 0 6 27 9 4 1 0 0 0 0 a 0 0 0 0 0 48 10:00 AM 0 0 5 18 16 5 0 0 0 0 0 D 0 0 0 0 0 44 11:00 AM 0 a 5 14 23 4 0 0 0 0 0 0 0 0 0 0 0 46 12;00 PM 0 1 7 30 21 5 1 0 0 0 0 0 0 0 0 0 0 65 1700 PM 1 5 42 6 1 0 0 0 0 0 0 0 0 0 0 0 56 2:00 PM 0 1 14 34 26 3 1 0 D 0 0 0 0 0 0 0 0 79 3.'00 Phi 1 6 41 34 20 4 a 1 0 0 0 0 0 0 0 0 0 107 4:00 PM 1 3 9 43 39 10 0 0 0 0 0 0 0 0 0 0 0 105 5:00 PM 4 1 9 30 33 7 0 0 0 0 0 0 0 0 0 0 0 84 6:00 PM 0 0 7 24 35 12 0 0 0 0 0 D 0 0 0 0 0 78 7:00 PM 1 2 4 40 16 5 1 1 0 0 0 0 0 0 0 0 0 70 8:00 PM 0 3 5 20 22 5 0 0 0 0 D 0 0 0 0 0 0 55 9:0D PM 0 1 3 15 16 5 1 0 0 0 0 0 0 0 0 0 0 41 10:00 PM 0 1 2 11 13 3 1 0 D 0 0 0 0 0 0 0 0 31 11:00 PM 0 0 1 5 9 0 2 0 0 0 0 0 0 0 0 0 0 17 Dial a 29 167 447 371 68 a 2 0 0 0 0 0 0 0 0 0 1,119 Percent 0.7% 2.5% 14.2% 39.9% 33.2% 7.9% 0.7% 0.2% 0.0% &D% 0.0% 0.6% 0.0% 0.0% 0.a% 0.0% 0.0% Daily Percentile Speed Summary speed Statistics 50th Percentile (Median) 23.9 mph Mean (Average) Speed 24 mph 85th Percentile 28.5 mph 10 mph Pace 18.9 - 28.9 mph 95th Percentile 31.5 mph Percent in Pace 74.35 % Mark Skaggs:425-250-0777 mark.skaggs@idaxdata.com Location: 8TH AVE S BTWN S 314TH ST & S 315TH ST Date Range: 6/1212018 to 6/14/2018 Site Code: 03 Total Study Average Wa), DATA SOLUTIONS 8 eed Ran e m h Total Time 9.10 10-15 15-20 20-25 25-30 30-35 35-40 40-45 45-50 50-55 55-60 60.65 65-70 70-75 75-80 80-65 85+ Volume 12:00 AM 0 0 1 3 4 2 0 0 0 0 0 0 0 0 0 0 0 10 1:00 AM 0 0 1 1 1 2 0 0 0 0 0 0 0 0 0 0 0 5 2:00 AM 0 0 0 0 3 1 1 0 0 0 0 0 0 0 0 0 0 5 3:00 AM 0 0 0 2 0 0 G 0 0 0 0 0 0 0 0 0 0 2 4:00 AM 0 0 0 3 5 1 0 0 0 0 0 0 0 0 0 0 0 9 5:00 AM 0 0 1 7 16 9 1 0 0 0 0 0 0 0 0 0 0 34 6:00 AM 0 1 3 24 28 6 _ 1 0 0 0 0 0 0 0 0 0 65 7:00 AM 0 0 6 43 51 15 1 0 0 0 0 0 0 0 0 0 0 116 8:00 AM 3 11 70 65 22 4 0 0 0 0 0 0 0 0 0 0 176 9:00 AM 1 1 5 26 24 5 0 0 0 0 0 0 0 0 0 0 63 10:00 AM 0 1 9 33 26 5 0 0 0 0 0 0 0 0 0 0 75 11:00 AM 0 0 10 36 35 9 ! 0 0 0 0 0 0 0 0 0 0 91 12:00 PM 0 1 7 43 28 8 0 0 0 0 0 0 0 0 0 0 0 87 1:00 PM 1 1 7 37 39 7 ,7 0 0 0 0 0 0 0 0 0 0 92 2:00 PM 0 2 24 60 35 5 0 0 0 0 0 0 0 0 0 0 127 3:00 PM 0 9 43 62 27 6 0 0 0 0 0 0 0 0 0 0 0 147 4:00 PM 0 2 13 54 38 9 1 0 0 0 0 0 0 0 0 0 0 117 5:00 PM 0 1 12 46 51 13 1 0 0 0 0 0 0 0 0 0 0 124 6:00 PM 1 2 5 37 50 12 1 0 0 0 0 0 0 0 0 0 0 108 7:00 PM 1 1 10 31 29 8 1 0 0 0 0 0 0 0 0 0 0 81 8:00 PM 0 1 3 30 25 7 1 0 0 0 0 0 0 0 0 0 0 67 9:00 PM 0 1 5 14 14 6 1 0 0 0 0 0 0 0 0 0 0 41 10:00 PM 0 0 2 10 13 3 0 0 0 0 0 0 0 0 0 0 0 28 11:00 PM 0 0 0 6 6 2 1 0 0 0 0 0 0 0 0 0 0 15 Total 7 35 237 673 570 145 17 1 0 0 0 0 0 0 0 0 0 1,685 p*tr,mt 0.4% 2.1% 14.1% 39.9% 3311% 8.6% 1.0% 0.1% 0.8 0.0% 0.0% 0A% 0.0% 0.0% 0.0% 0.0% 0.0% Note: Average only condsidered on days with 24-hours of data Total Stut Percentile Speed Summary Total Study Speed Statistics 50th Percentile (Median) 24.3 mph Mean (Average) Speed 24.2 mph 85th Percentile 28.8 mph 10 mph Pace 19.6 - 29.6 mph 95th Percentile 31.7 mph Percent in Pace 74.4 Mark Skaggs:425-250-0777 mark.skaggs@idaxdata cam Location: 8TH AVE S BTWN S 314TH ST & S 315TH ST Date Range: 6/12/2018 to 6/14/2018 Site Code: 03 Total Study Average Cnfhhnnd wal�", DATA SOLUTIONS Speed Ran ge rn h Total rime 0.10 10 -15 15 - 20 20 - 25 25-30 30 -35 35 -40 40.45 45 - 50 50 - 55 55 - 60 60.65 65 - TO 70 - 75 75 - 80 80.85 85 • Volume 12.00 AM 0 0 0 3 3 2 0 0 0 0 0 0 0 0 0 0 D 8 1:00 AM 0 0 0 1 2 1 0 0 0 0 0 0 0 0 0 0 0 4 2:DO AM 0 D 1 1 1 0 1 0 0 0 0 0 0 0 0 0 0 4 3:00AM 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 2 4:00 AM 0 0 1 4 4 0 0 0 0 0 0 0 0 0 0 0 0 9 5:00 AM 0 0 0 4 8 2 0 0 0 0. 0 0 0 0 0 0 a 14 6:00 AM 0 2 3 6 9 5 0 0 0 0 0 0 0 0 0 0 0 25 7,00 AM 0 1 5 14 23 5 1 0 0 0 0 0 0 0 0 0 0 49 8:00 AM 1 5 33 29 12 2 0 0 0 0 0 0 0 0 0 0 0 82 9:00 AM 0 1 4 23 18 5 1 0 0 0 0 0 0 0 0 0 0 52 10:00 AM 0 0 7 18 19 4 D 0 0 0 0 0 0 0 0 0 0 48 11:00 AM 0 0 7 19 18 3 0 0 0 0 0 0 0 0 0 0 0 47 12:00 PM 0 2 10 33 18 4 1 0 0 0 0 0 0 0 0 0 0 68 1:00 PM 0 0 6 30 18 5 0 0 0 0 0 0 0 0 0 0 0 59 2:00 PM 0 0 9 27 30 5 0 0 0 0 0 0 0 0 0 0 0 71 3:00 PM 2 9 37 42 20 3 0 0 0 0 0 0 0 0 0 0 0 113 4:00 PM 1 2 6 41 36 9 0 O 0 0 0 0 0 0 0 0 0 95 5:D0 PM 2 1 7 28 43 9 2 0 0 0 0 0 0 0 0 0 0 92 GAO PM 0 1 6 25 36 14 a 0 0 0 0 0 0 0 0 0 0 82 7:00 PM 1 2 3 27 22 5 1 0 0 0 0 0 0 0 0 0 0 61 8:00 PM 0 1 9 22 19 5 0 0 0 0 0 0 0 0 0 0 0 56 9:00 PM 0 2 13 10 4 0 0 0 O 0 0 0 0 0 0 D 30 10:00 PM 0 ri 1 7 10 2 1 0 0 0 0 0 0 0 0 0 0 21 11:00 PM 0 0 3 7 1 1 0 0 0 0 0 7 0 0 0 0 13 Teu1 7 28 159 420 387 95 9 0 0 0 0 0 0 0 0 0 0 1,105 Percent 0.6% 2.5% 14.41A 30.0% 35.01 8,6% 0.8% 0.0% 0.0% 0.09E 0.014 0.0% 0.0% 0.0% 0,011. 0.0% 0.01A Note: Average only condsidered on days vrith 24-hours of data Total Study Percentile Speed Summary Total StudX Speed Statls[lcs 50th Percentile (Median) 24.4 mph Mean (Average) Speed 24.2 mph 85th Percentile 28.9 mph 10 mph Pace 19.3 - 29.3 mph 95th Percentile 31.6 moh Percent in Pace 73.1 Mark Skaggs:425-250-0777 mark.skaggs@idaxdata.com YTRAFF/C DATA GATHER/NG TURNING MOVEMENTS DIAGRAM 4:00 PM - 6:00 PM PEAK HOUR: 4:30 PM TO 5:30 PM Peds = 0 21 17 a� ID ID Bicyclesr 0 0 U-Turn Q N L N 15 6 C° N 'm Ir- 9 0 10 1 0 ;4000r HV PHF SB 0.0% 0.88 NB 0.0% 0.56 WB 0.0% 1 0.50 INTRS. 0.0% 0.77 HV = Heavy Vehicles PHF = Peak Hour Factor COUNTED BY: TDG REDUCTION DATE: Wed. 10/31/18 8 1 U-Tum J 0 0 Bicycles a� c 16 9 Q Peds = 2 INTERSECTION PEAK HOUR VOLUME IN 40 OUT 40 6th Avenue S @ S 314th Street Federal Way, WA DATE OF COUNT: Wed. 10/31/18 TIME OF COUNT: 4:00 PM - 6:00 PM TEN W 25 vehicles in PM peak hour Based on PHF on S 314th of approx. 18%, ADT is 135 vehicles. 0 TTRAFFIC OATH LL.Ti. INTERSECTION TURNING MOVEMENTS REDUCTION SHEET LOCIITON: Ywlarvl�llly W�a __ MIE OFCOONT: LOOMED W: TOO fWMIIm.YY THE OF CO— I.m MY.Itl PY GATE OF MEOOCOON: 1NJ1OOtl naaa■� riA a�e�nta�■n n �a �r■a�saenaaaAnE■aaaaanr�aaa■�ae�nnai �n�in�iAnn�A��a�Ae�nr�■���nAr �AA��en■nnnii�r� ���ir�■nesiArr�A�an��nA■arr���n��ae■anAa�i e�r�n■nl■�n�nii naainisa�n�a■I■ �nr�rsnnaa nrnnnia�aae��n �r�aanfaaa�rts�■eaaariaa eriaaaaia■��ria� i!+��r■aaseranis � nanA �■�ienirei����i�� Asn�a A Asa��a �ne ���asnnn � nn n ■hta�enanarr�annn r�inrne�asaa . a � �sa�aasaanre■aaaaani� ���te a eeeeeeeee ee eeeree e e eeeeeee saw©��airr��■����a NV a Nervy—.. PNF•P H—ft— I:HI PM •.CO m PE MOVR: 4'7.PM TO 'wm ROLLING HOUR COUNT iSLT� � aaaae��a rrrra r■�a na e�re�w a� a ae�aan�tr��r� �i �e�sa��r■��e�e■s��in�rr�� aae��� E■aar��a� r�a�ea�a�r�rie■ae■��■riaariRun' ■ri■���offiesm In RUN"" rm "mme mmmmun= !'!�9■e�'ll7!'f �■a�ew��rr� aa��'fAl7�� l7f���lEi !'fl�■!7■fl ���Q■�17lS�*� !'■AAl7l7i1� ��aQoom r� s�aae�®tea r� rr� ©e � ©d■a�orer�Q© 00!!00©000�0o0©A0y0yo000000000 ATTACHMENT B Intersection LOS Summary Sheets V TEN W HCM Unsignalized Intersection Capacity Analysis 1: S 315th St/North Dr & S 314th St 10/23/2018 —♦ -IV #"* f-- 'r I.* Movement EBT EBR WBL WBT NBL NBR Lane Configurations Traffic Volume (veh1h) 37 29 89 38 0 0 Future Volume (Veh/h) 37 29 89 38 0 0 Sign Control Free Free Stop Grade 0% 0% 0% Peak Hour Factor 0.67 0.67 0.67 0.67 0.67 0.67 Hourly flow rate (vph) 55 43 133 57 0 0 Pedestrians 88 27 88 Lane Width (ft) 12.0 12.0 0.0 Walking Speed (ft/s) 4.0 4.0 4.0 Percent Blockage 7 2 0 Right tum flare (Veh) Median type None None Median storage veh) Upstream signal (ft) pR, platoon unblocked vC, conflicting volume 186 576 192 vC1, stage 1 conf Vol vC2, stage 2 conf Vol vCu, unblocked Vol 186 576 192 tC, single (s) 4.2 6.4 6.2 tC, 2 stage (s) tF (s) 2.3 3.5 3.3 p0 queue free % 90 100 100 cM capacity (veh/h) 1365 404 836 Direction, Lane # EB 1 VV3 1 Volume Total 98 190 Volume Left 0 133 Volume Right 43 0 cSH 1700 1365 Volume to Capacity 0.06 0.10 Queue Length 95th (ft) 0 8 Control Delay (s) 0.0 5.8 Lane LOS A Approach Delay (s) 0.0 5.8 Approach LOS Intersection Summary Average Delay 3.8 Intersection Capacity Utilization 29.5% ICU Level of Service A Analysis Period (min) 15 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2018 Existing AM LOS Synchro 10 Report TENW Page 2 HCM Unsignalized Intersection Capacity Analysis 2: 8th Ave S & S 314th St 10/23/2018 Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations 4;* Traffic Volume (veh/h) 13 4 35 7 18 2 97 93 7 0 31 23 Future Volume (Veh/h) 13 4 35 7 18 2 97 93 7 0 31 23 Sign Control Stop Stop Free Free Grade 0% 0% 0% 0% Peak Hour Factor 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0,79 0.79 0.79 6.79 Hourly flow rate (vph) 16 5 44 9 23 3 123 118 9 0 39 29 Pedestrians 7 7 5 7 Lane Width (ft) 12.0 12.0 12.0 12.0 Walking Speed (ft/s) 4.0 4.0 4.0 4.0 Percent Blockage 1 1 0 1 Right turn flare (veh) Median type None None Median storage veh) Upstream signal (ft) pX, platoon unblocked vC, conflicting volume 450 440 66 480 450 136 75 134 vC1, stage 1 conf vol vC2, stage 2 conf vol vCu, unblocked vol 450 440 66 480 450 136 75 134 tC, single (s) 7.1 6.5 6.2 7.1 6.5 6.2 4.1 4.1 tC, 2 stage (s) tF (s) 3.5 4.0 3.3 3.5 4.0 3.3 2.2 2.2 p0 queue free °10 97 99 96 98 95 100 92 100 cM capacity (veh/h) 460 466 994 429 455 896 1503 1442 Direction, Lane # EB 1 WB 1 NB 1 SB 1 Volume Total 65 35 250 68 Volume Left 16 9 123 0 Volume Right 44 3 9 29 cSH 724 467 1503 1442 Volume to Capacity 0.09 0.07 0.08 0.00 Queue Length 95th (ft) 7 6 7 0 Control Delay (s) 10.5 13.3 4.1 0.0 Lane LOS B B A Approach Delay (s) 10.5 13.3 4.1 0.0 Approach LOS B B Intersection 5umrnkry Average Delay 5.2 Intersection Capacity Utilization 29.8% ICU Level of Service A Analysis Period (min) 15 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2018 Existing AM LOS Synchro 10 Report TENW Page 4 HCM Unsignalized Intersection Capacity Analysis 3: 8th Ave S & S 315th St/South Dr/S 315 St 110/23/2018 * Movement EBL EBT EBR WBL WBT WBR NBL IIBT NBR SBL SBT SBR Lane Configurations 41� 4 4 4 Traffic Volume (veh/h) 35 1 58 7 0 8 3 155 12 3 68 1 Future Volume (Veh/h) 35 1 58 7 0 8 3 155 12 3 68 1 Sign Control Stop Stop Free Free Grade 0% 0% 0% 0% Peak Hour Factor 0.78 0.78 0.78 0.78 0.78 0.78 0.78 0.78 0.78 0.78 0.78 0.78 Hourly flow rate (vph) 45 1 74 9 0 10 4 199 15 4 87 1 Pedestrians 82 102 102 24 Lane Width (ft) 12.0 12.0 12.0 12.0 Walking Speed (ftfs) 4.0 4.0 4.0 4.0 Percent Blockage 7 9 9 2 Right turn flare (veh) Median type None None Median storage veh) Upstream signal (ft) pX, platoon unblocked vC, conflicting volume 426 502 272 588 494 332 170 316 vC1, stage 1 conf vol vC2, stage 2 conf vol vCu, unblocked vol 426 502 272 588 494 332 170 316 tC, single (s) 7.2 6.6 6.3 7.1 6.5 6.2 4.1 4.1 tC, 2 stage (s) tF (s) 3.6 4.1 3.4 3.5 4.0 3.3 2.2 2.2 p0 queue free % 89 100 88 97 100 98 100 100 cM capacity (veh/h) 416 390 638 276 406 640 1294 1144 Direction. Lane # EB 1 WB 1 NB 1 SB 1 Volume Total 120 19 218 92 Volume Left 45 9 4 4 Volume Right 74 10 15 1 cSH 529 394 1294 1144 Volume to Capacity 0.23 0.05 0.00 0.00 Queue Length 95th (ft) 22 4 0 0 Control Delay (s) 13.8 14.6 0.2 0.4 Lane LOS B B A A Approach Delay (s) 13.8 14.6 0.2 0.4 Approach LOS B B Intersection Summary Average Delay 4.5 Intersection Capacity Utilization 33.0% ICU Level of Service A Analysis Period (min) 15 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2018 Existing AM LOS Synchro 10 Report TENW Page 7 • HCM Unsignalized Intersection Capacity Analysis 1: S 315th St/North Dr & S 314th St 10/23/2018 r ~ 4N I,* Movement EBT EBR WBL WBT NBL NBR Lane Configurations 1� of Traffic Volume. (veh/h) 38 8 36 44 0 0 Future Volume (Veh/h) 38 8 36 44 0 0 Sign Control Free Free Stop Grade 0% 0% 0% Peak Hour Factor 0.73 0.73 0.73 0.73 0.73 0.73 Hourly flow rate (vph) 52 11 49 60 0 0 Pedestrians 112 32 112 Lane Width (ft) 12.0 12.0 0.0 Walking Speed (ftls) 4.0 4.0 4.0 Percent Blockage 9 3 0 Right turn flare (veh) Median type None None Median storage veh) Upstream signal (ft) pX, platoon unblocked vC, conflicting volume 175 440 202 vC1, stage 1 conf vol vC2, stage 2 conf vol vCu, unblocked_ vol 175 440 202 tC, single (s) 4.2 6.4 6.2 tC, 2 stage (s) tF (s) 2.3 3.5 3.3 p0 queue free % 96 100 100 cM capacity (veh/h) 1338 505 822 Direction. Lane # E8 1 WB 1 Volume Total 63 109 Volume Left 0 49 Volume Right 11 0 cSH 1700 1338 Volume to Capacity 0.04 0.04 Queue Length 95th (ft) 0 3 Control Delay (s) 0.0 3.7 Lane LOS A Approach Delay (s) 0.0 3.7 Approach LOS Intersection Summary Average Delay 2.3 Intersection Capacity Utilization 29.7% ICU Level of Service A Analysis Period (min) 15 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2018 Existing PM LOS TENW Synchro 10 Report Page 2 HCM Unsignalized Intersection Capacity Analysis 2: 8th Ave S & S 314th St 10/23/2018 * Movement EBL EBT EBR WBL VVBT WBR NBL NST NBR SBL SET SBR Lane Configurations 41� 41, 41� 4 Traffic Volume (veh/h) 9 9 35 7 12 2 56 106 8 0 63 24 Future Volume (Veh/h) 9 9 35 7 12 2 56 106 8 0 63 24 Sign Control Stop Stop Free Free Grade 0% 0% 0% 0% Peak Hour Factor 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.82 Hourly flow rate (vph) 11 11 43 9 15 2 68 129 10 0 77 29 Pedestrians 10 9 10 5 Lane Width (ft) 12.0 12.0 12.0 12.0 Walking Speed (ft/s) 4.0 4.0 4.0 4.0 Percent Blockage 1 1 1 0 Right turn flare (veh) Median type None None Median storage veh) Upstream signal (ft) pX, platoon unblocked vC, conflicting volume 386 386 112 429 395 148 116 148 vC1, stage 1 conf vol vC2, stage 2 conf vol vCu, unblocked vol 386 386 112 429 395 148 116 148 tC, single (s) 7.1 6.5 6.2 7.1 6.5 6.2 4.1 4.1 tC, 2 stage (s) tF (s) 3.5 4.0 3.3 3.5 4.0 3.3 2.2 2.2 p0 queue free % 98 98 95 98 97 100 95 100 cM capacity (veh/h) 529 517 931 467 504 881 1442 1405 Direction, Lane EB 1 WB 1 NB 1 SB 1 Volume Total 65 26 207 106 Volume Left 11 9 68 0 Volume Right 43 2 10 29 cSH 737 507 1442 1405 Volume to Capacity 0.09 0.05 0.05 0.00 Queue Length 95th (ft) 7 4 4 0 Control Delay (s) 10.4 12.5 2.8 0.0 Lane LOS 8 B A Approach Delay (s) 10.4 12.5 2.8 0.0 Approach LOS B B Intersection Summa Average Delay 3.9 Intersection Capacity Utilization 29.3% ICU Level of Service A Analysis Period (min) 15 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2018 Existing PM LOS Synchro 10 Report TENW Page 4 i HCM Unsignalized Intersection Capacity Analysis 3: 8th Ave S & S 315th St/South Dr/S 315 St 10/23/2018 Movement EBL EST EBR VVBL WBT WBR NBL NBT NBR �BL SBT SBR Lane Configurations 40 4;P Traffic Volume (veh/h) 22 0 42 6 0 5 2 132 5 3 112 0 Future Volume (Veh/h) 22 0 42 6 0 5 2 132 5 3 112 0 Sign Control Stop Stop Free Free Grade 0% 0% 0% 0% Peak Hour Factor 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 Hourly flow rate (vph) 28 0 53 8 0 6 3 167 6 4 142 0 Pedestrians 125 126 126 7 Lane Width (ft) 12.0 12.0 12.0 12.0 Walking Speed (ft/s) 4.0 4.0 4.0 4.0 Percent Blockage 10 10 10 1 Right turn flare (veh) Median type None None Median storage veh) Upstream signal (ft) pX, platoon unblocked vC, conflicting volume 464 580 393 631 577 303 267 299 yC1, stage 1 conf vol vC2, stage 2 conf vol vCu, unblocked vol 464 580 393 631 577 303 267 299 tC, single (s) 7.3 6.7 6.4 7.1 6.5 6.2 4.2 4.1 tC, 2 sta9e (s) tF (s) 3.7 4.2 3.5 3.5 4.0 3.3 2.3 2.2 p0 queue free % 92 100 89 97 100 99 100 100 cM capacity (veh/h) 360 323 501 240 343 660 1141 1130 Direction, Lane 9 EB 1 VVB 1 NB 1 SB 1 Volume Total 81 14 176 146 Volume Left 28 8 3 4 Volume Right 53 6 6 0 cSH 441 329 1141 1130 Volume to Capacity 0.18 0.04 0.00 0.00 Queue Length 95th (ft) 17 3 0 0 Control Delay (s) 15.0 16.4 0.2 0.3 Lang LOS B C A A Approach Delay (s) 15.0 16.4 0.2 0.3 Approach LOS B C Intersection Surnmary Average Delay 3.6 Intersection Capacity Utilization 33.2% ICU Level of Service A Analysis Period (min) 15 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2018 Existing PM LOS TENW Synchro 10 Report Page 7 HCM Unsignalized Intersection Capacity Analysis 1: East Driveway & S 314th St 10/23/2018 --* '�-* ~ 4N Movement EBT EBR WBL WBT NSL NBR Lane Configurations 1� 4 Traffic Volume (volt) 39 31 94 40 0 0 Future Volume (Veh/h) 39 31 94 40 0 0 Sign Control Free Free Stop Grade 0% 0% 0% Peak Hour Factor 0.67 0.67 0.67 0.67 0.67 0.67 Hourly flow rate (vph) 58 46 140 60 0 0 Pedestrians 88 27 88 Lane Width (ft) 12.0 12.0 0.0 Walking Speed (Ts) 4.0 4.0 4.0 Percent Blockage 7 2 0 Right turn flare (veh) Median type None None Median storage veh) Upstream signal (ft) pX, platoon unblocked vC, conflicting volume 192 597 196 vC1, stage 1 conf vol vC2, stage 2 conf vol vCu, unblocked vol 192 597 196 tC, single (s) 4.2 6.4 6.2 tC, 2 stage (s) tF (s) 2.3 3.5 3.3 p0 queue free % 90 100 100 cm capacity (veh/h) 1358 390 831 Direction, Lane # EB 1 WS 1 Volume Total 104 200 Volume Left 0 140 Volume Right 46 0 cSH 1700 1358 Volume to Capacity 0.06 0.10 Queue Length 95th (it) 0 9 Control Delay (s) 0.0 5.8 Lane LOS A Approach Delay (s) 0.0 5.8 Approach LOS Intersection Summary Average Delay 3.8 Intersection Capacity Utilization 29.9% ICU Level of Service A Analysis Period (min) 15 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Baseline AM LOS Synchro 10 Report TENW Page 2 HCM 2010 TWSC 2: 8th Ave S & S 314th St 10/23/2018 Intersection Int Delay, s/veh 5.1 Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations + 41� 4 Traffic Vol, veh/h 14 4 37 7 19 2 103 99 7 0 33 24 Future Vol, veh/h 14 4 37 7 19 2 103 99 7 0 33 24 Conflicting Peds, #/hr 7 0 5 5 0 7 5 0 5 7 0 7 Sign Control Stop Stop Stop Stop Stop Stop Free Free Free Free Free Free RT Channelized - - None - - None - None - - None Storage Length - - - - - - Veh in Median Storage, # - 0 0 0 - 0 - Grade, % - 0 - - 0 0 0 - Peak Hour Factor 79 79 79 79 79 79 79 79 79 79 79 79 Heavy Vehicles, % 0 0 0 4 4 4 4 4 4 2 2 2 Mvmt Flow 18 5 47 9 24 3 130 125 9 0 42 30 Ma orUnor Minor2 Minorl Ma'orl Ma'or2 Conflicting Flow All 474 465 69 485 476 144 79 0 0 141 0 0 Stage 1 64 64 - 397 397 - - - - - - Stage 2 410 401 - 88 79 - - - Critical Hdwy 7.1 6.5 6.2 7.14 6.54 6.24 4.14 4.12 Critical Hdwy Stg 1 6.1 5.5 - 6.14 5.54 - - - Critical Hdwy Stg 2 6.1 5.5 - 6.14 5.54 - - - Follow-up Hdwy 3.5 4 3.3 3.536 4.036 3.336 2.236 - 2.218 Pot Cap-1 Maneuver 504 498 1000 489 485 898 1507 - 1442 Stage 1 952 846 - 625 600 - - - Stage 2 623 604 - 915 825 - - - Platoon blocked, % Mov Cap-1 Maneuver 442 446 990 424 434 888 1498 1434 Mov Cap-2 Maneuver 442 446 - 424 434 - - - Stage 1 858 841 - 563 541 - - Stage 2 535 544 863 820 - - - Approach EB WB NB SB HCM Control Delay, s 10.7 13.7 3.8 0 HCM LOS B B Minor LanelMa'ar Mvmt NBL NBT NBR EBLn1WBLnl SBL SBT SBR Capacity (vehlh) 1498 - 705 448 1434 HCM Lane WC Ratio 0.087 - 0.099 0.079 HCM Control Delay (s) 7.6 0 10.7 13.7 0 - HCM Lane LOS A A B B A HCM 95th %tile Q(veh) 0.3 - 0.3 0.3 0 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Baseline AM LOS Synchro 10 Report TENW Page 5 HCM 2010 TWSC 3: 8th Ave S & S 315th St/South Dr/S 315 St 10/23/2018 Intersection Int Delay, s/veh Movement 4.3 EBL EBT EBR W8L WBT WBR NBL NBT NBR SSL SBT SBR Lane Configurations 4 4 4 Traffic Vol, veh/h 37 1 62 7 0 8 3 164 13 3 72 1 Future Vol, veh/h 37 1 62 7 0 8 3 164 13 3 72 1 Conflicting Peds, #/hr 4 0 82 102 0 24 82 0 102 24 0 4 Sign Control Stop Stop Stop Stop Stop Stop Free Free Free Free Free Free RT Channelized - - None - - None - None None Storage Length - - - Veh in Median Storage, # 0 0 0 - 0 - Grade, % - 0 - 0 - - 0 0 Peak Hour Factor 78 78 78 78 78 78 78 78 78 78 78 78 Heavy Vehicles, % 10 10 10 0 0 0 5 5 5 1 1 1 Mvmt Flow 47 1 79 9 0 10 4 210 17 4 92 1 Major/Minor Minor2 Minorl Ma orl Ma or2 Conflicting Flow All 439 520 277 572 512 345 175 0 0 329 0 0 Stage 1 183 183 - 329 329 - - - - - Stage 2 256 337 - 243 183 - - - Critical Hdwy 7.2 6.6 6.3 7.1 6.5 6.2 4.15 - 4.11 Critical Hdwy Stg 1 6.2 5.6 - 6.1 5.5 - - Critical Hdwy Stg 2 6.2 5.6 - 6.1 5.5 - - - Follow-up Hdwy 3.59 4.09 3.39 3.5 4 3.3 2.245 2.209 PotCap-1 Maneuver 515 449 743 434 468 702 1383 - 1236 Stage 1 800 733 - 688 650 - - Stage 2 731 627 - 765 752 - - Platoon blocked, % Mov Cap-1 Maneuver 460 380 633 315 396 629 1288 - 1131 Mov Cap-2 Maneuver 460 380 - 315 396 - - Stage 1 742 680 - 627 592 - - Stage 2 702 571 - 608 698 - - Approach EB WB NB SB HCM Control Delay, s 13.5 13.8 0.1 0.3 HCM LOS B B Minor LanelMa or Mvmt NBL NBT NER EBLn1WBLn1 SBL SBT SBR Capacity (veh/h) 1288 - 552 429 1131 HCM Lane V/C Ratio 0.003 - 0.232 0.045 0.003 - HCM Control Delay (s) 7.8 0 13.5 13.8 8.2 0 HCM Lane LOS A A B B A A HCM 95th %tile Q(veh) 0 - 0.9 0.1 0 - Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Baseline AM LOS Synchro 10 Report TENW Page 8 HCM 2010 TWSC 4: S 314th St & 7th Ave S 10/23/2018 Intersection Int Delay, s/veh Movement 0.6 EBL EST WBT WBR SBL S8R Lane Configurations 4 1� Y Traffic Vol, veh/h 0 63 36 4 7 0 Future Vol, veh/h 0 63 36 4 7 0 Conflicting Peds, #/hr 0 0 0 0 0 0 Sign Control Free Free Free Free Stop Stop RT Channelized None - None - None Storage Length - - - 0 - Veh in Median Storage, # - 0 0 0 - Grade, % - 0 0 - 0 - Peak Hour Factor 92 92 92 92 92 92 Heavy Vehicles, % 2 2 2 2 2 2 Mvmt Flow 0 68 39 4 8 0 Ma'orlMinor Ma orl Ma or2 Minor2 Conflicting Flow All 43 0 0 109 41 Stage 1 - - 41 - Stage 2 - 68 - Critical Hdwy 4.12 6.42 6.22 Critical Hdwy Stg 1 - 5.42 - Critical Hdwy Stg 2 - 5.42 - Follow-up Hdwy 2.218 3.518 3.318 Pot Cap-1 Maneuver 1566 888 1030 Stage 1 - 981 - Stage 2 - 955 - Platoon blocked, % Mov Cap-1 Maneuver 1566 888 1030 Mov Cap-2 Maneuver - 888 Stage 1 - 981 - Stage 2 - 955 Approach EB VVB SB HCM Control Delay, s 0 0 9.1 HCM LOS A Minor LanefMa or Mvmk EBL EBT WBT WBR SBLn1 Capacity (veh/h) 1566 888 HCM Lane V/C Ratio - 0.009 HCM Control Delay (s) 0 9.1 HCM Lane LOS A A HCM 95th %tile Q(veh) 0 0 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Baseline AM LOS Synchro 10 Report TENW Page 11 HCM Unsignalized Intersection Capacity Analysis 1: S 315th St/North Dr & S 314th St 10/23/2018 -.N 41,'-4% 1* Movement EBT EBR WBL WBT NBL NBR Lane Configurations 1� a' Traffic Volume (veh/h) 40 8 38 47 0 0 Future Volume (Veh/h) 40 8 38 47 0 0 Sign Control Free Free Stop Grade 0% 0% 0% Peak Hour Factor 0.73 0.73 0.73 0,73 0.73 0.73 Hourly flow rate (vph) 55 11 52 64 0 0 Pedestrians 112 32 112 Lane Width (ft) 12.0 12.0 0.0 Walking Speed (ft/s) 4.0 4.0 4.0 Percent Blockage 9 3 0 Right turn flare (veh) Median type None None Median storage veh) Upstream signal (ft) p) , platoon unblocked vC, conflicting volume 178 452 204 vC1, stage 1 conf vol vC2, stage 2 conf vol vCu, unblocked vol 178 452 204 tC, single (s) 4.2 6.4 6.2 tC, 2 stage (s) tF (s) 2.3 3.5 3.3 p0 queue free % 96 100 100 cM capacity (veh/h) 1334 496 819 Direction, Lane # E8 1 WB 1 Volume Total 66 116 Volume Left 0 52 Volume Right 11 0 cSH 1700 1334 Volume to Capacity 0.04 0.04 Queue Length 95th (ft) 0 3 Control Delay (s) 0.0 3.7 Lane LOS A Approach Delay (s) 0.0 3.7 Approach LOS Intersection Summary Average Delay 2.3 Intersection Capacity Utilization 29.7% ICU Level of Service A Analysis Period (min) 15 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Baseline PM LOS Synchro 10 Report TENW Page 2 HCM 2010 TWSC 2: 8th Ave S & S 314th St 10/23/2018 Intersecfion Int Delay, slveh 3.8 Movement E8L EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations + + + + Traffic Vol, vehlh 10 10 37 7 13 2 59 112 8 0 67 25 Future Vol, vehlh 10 10 37 7 13 2 59 112 8 0 67 25 Conflicting Peds, #Ihr 5 0 10 9 0 4 10 0 9 4 0 10 Sign Control Stop Stop Stop Stop Stop Stop Free Free Free Free Free Free RT Channelized - None None - None - None Storage Length - - - - - - - Veh in Median Storage, # - 0 0 - 0 0 Grade, % - 0 - - 0 - 0 - 0 - Peak Hour Factor 82 82 82 82 82 82 82 82 82 82 82 82 Heavy Vehicles, % 0 0 0 5 5 5 5 5 5 5 5 5 Mvmt Flow 12 12 45 9 16 2 72 137 10 0 82 30 Major/Minor Minor2 Minorl Ma orl Ma or2 Conflicting Flow All 407 407 117 431 417 156 122 0 0 156 0 0 Stage 107 107 - 295 295 - - - Stage 2 300 300 - 136 122 - - - Critical Hdwy 7.1 6.5 6.2 7.15 6.55 6.25 4.15 4.15 Critical Hdwy Stg 1 6.1 5.5 6.15 5.55 - - - Critical Hdwy Stg 2 6.1 5.5 - 6.15 5.55 - - Follow-up Hdwy 3.5 4 3.3 3.545 4.045 3.345 2.245 - 2.245 Pot Cap-1 Maneuver 558 537 941 529 522 882 1447 1406 Stage 903 811 - 707 664 - - - Stage 2 713 669 - 860 789 - - Platoon blocked, % Mov Cap-1 Maneuver 513 500 925 466 486 872 1435 1395 Mov Cap-2 Maneuver 513 500 - 466 486 - - - Stage 1 846 805 - 663 623 - Stage 2 652 628 - 799 783 - Approach EB WB N8 SB HCM Control Delay, s 10.6 12.6 2.5 0 HCM LOS B B Minor Lane/Major Mvmt NBL NBT NBR EBLn1VVBLn1 SBL SBT SBR Capacity (veh/h) 1435 717 499 1395 HCM Lane V/C Ratio 0.05 - 0.097 0.054 - HCM Control Delay (s) 7.6 0 10.6 12.6 0 HCM Lane LOS A A B B A HCM 95th %tile Q(veh) 0.2 0.3 0.2 0 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Baseline PM LOS Synchro 10 Report TENW Page 5 HCM 2010 TWSC 3: 8th Ave S & S 315th St/South Dr/S 315 St 10/23/2018 Intersection Int Delay, s/veh Movement 3.4 EBL EBT EBR WSL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations + 4 *1� 41� Traffic Vol, veh/h 23 0 45 6 0 5 2 140 5 3 119 0 Future Vol, veh/h 23 0 45 6 0 5 2 140 5 3 119 0 Conflicting Peds, #/hr 6 0 125 126 0 7 125 0 126 7 0 6 Sign Control Stop Stop Stop Stop Stop Stop Free Free Free Free Free Free RT Channelized - - None - - None - - None - - None Storage Length - Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 - Grade, % - 0 - 0 - - 0 - - 0 Peak Hour Factor 79 79 79 79 79 79 79 79 79 79 79 79 Heavy Vehicles, % 17 17 17 0 0 0 6 6 6 2 2 2 Mvmt Flow 29 0 57 8 0 6 3 177 6 4 151 0 Maur/Mirror Mincr2 Minorl Major1 Major2 Conflicting Flow All 480 599 402 626 596 313 276 0 0 309 0 0 Stage 284 284 - 312 312 - - - - - - Stage 2 196 315 . 314 284 - - - - Critical Hdwy 7.27 6.67 6.37 7.1 6.5 6.2 4.16 - 4.12 - Critical Hdwy Stg 1 6.27 5.67 - 6.1 5.5 - - Critical Hdwy Stg 2 6.27 5.67 - 6.1 5.5 - - - - Follow-up Hdwy 3.653 4.153 3.453 3.5 4 3.3 2.254 - 2.218 Pot Cap-1 Maneuver 472 396 617 400 420 732 1264 - 1252 - Stage1 692 650 - 703 661 - - Stage 2 772 630 - 701 680 - - Platoon blocked, % Mov Cap-1 Maneuver 414 315 495 282 334 651 1132 - 1121 Mov Cap-2 Maneuver 414 315 - 282 334 - - - - Stage 1 618 580 - 627 590 - Stage 2 758 562 - 553 607 - - Approach EB WB NB SB HCM Control Delay, s 14.5 14.8 0.1 0.2 HCM LOS B B Minor Lane/Maur Mvmt NBL NBT NBR EBLn1WBLnl SBL SBT SBR Capacity (veh/h) 1132 - 464 380 1121 HCM Lane V/C Ratio 0.002 - - 0.186 0.037 0.003 - HCM Control Delay (s) 8.2 0 - 14.5 14.8 8.2 0 HCM Lane LOS A A - B B A A HCM 95th %tile Q(veh) 0 - - 0.7 0.1 0 - Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Baseline PM LOS Synchro 10 Report TENW Page 8 HCM 2010 TWSC 4- S 314th St & 7th Ave S 10/23/2018 Intersection Int Delay, s/veh 0.5 Movement EBL EBT WBT WBR SBL SBR Lane Configurations 4 to Y Traffic Vol, veh/h 0 44 42 5 5 0 Future Voi, veh/h 0 44 42 5 5 0 Conflicting Peds. Nhr 0 0 0 0 0 0 Sign Control Free Free Free Free Stop Stop RT Channelized - None - None - None Storage Length - - - - 0 - Veh in Median Storage, # - 0 0 - 0 - Grade, % - 0 0 - 0 - Peak Hour Factor 92 92 92 92 92 92 Heavy Vehicles, % 2 2 2 2 2 2 Mvmt Flow 0 48 46 5 5 0 Major/Minor Ma'or1 Major2 Minor2 Conflicting Flow All 51 0 0 97 49 Stage 1 - - 49 - Stage 2 - 48 - Critical Hdwy 4.12 6.42 6.22 Critical Hdwy Stg 1 - 5.42 - Critical Hdwy Stg 2 - 5.42 - Follow-up Hdwy 2.218 3.518 3.318 Pot Cap-1 Maneuver 1555 902 1020 Stage 1 - 973 - Stage 2 - 974 - Platoon blocked, % Mov Cap-1 Maneuver 1555 902 1020 Mov Cap-2 Maneuver - 902 - Stage 1 - 973 - Stage 2 - 974 - Approach EB WS SB HCM Control Delay, s 0 0 9 HCM LOS A Minor Lane/Major Mvmt EBL EBT WBT WBR SBLn1 Capacity (veh/h) 1555 902 HCM Lane WC Ratio - 0.006 HCM Control Delay (s) 0 9 HCM Lane LOS A A HCM 95th % ile Q(veh) 0 0 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Baseline PM LOS Synchro 10 Report TENW Page 11 HCM 2010 TWSC 1: East Drivewax & S 314th St 10/23/2018 Intersection Int Delay, s/veh 3.9 Movement EBT EBR N/BL WBT NBL NBR Lane Configurations 1, 4 Y Traffic Vol, veh/h 62 31 116 67 0 18 Future Vol, veh/h 62 31 116 67 0 18 Conflicting Peds, #/hr 0 88 27 0 88 27 Sign Control Free Free Free Free Stop Stop RT Channelixed - None - None - None Storage Length - - 0 Veh in Median Storage, # 0 - 0 0 Grade, % 0 - - 0 0 Peak Hour Factor 67 67 67 67 67 67 Heavy Vehicles, % 2 2 6 6 0 0 Mvmt Flow 93 46 173 100 0 27 Major/Minor Ma'or1 Ma'or2 Minorl Conflicting Flow All 0 0 227 0 738 231 Stage 1 - - - 204 - Stage 2 - - - 534 - Critical Hdwy - 4.16 - 6.4 6.2 Critical Hdwy Stg 1 - - - 5.4 - Critical Hdwy Stg 2 - - - 5.4 - Follow-up Hdwy - 2.254 - 3.5 3.3 Pot Cap-1 Maneuver - 1318 - 388 813 Stage 1 - - - 835 - Stage 2 - - - 592 - Platoon blocked, % Mov Cap-1 Maneuver - 1221 - 283 736 Mov Cap-2 Maneuver - - - 283 - Stage 1 - - - 658 - Stage 2 - - - 549 - Approach EB WB NB HCM Control Delay, s 0 5.3 10.1 HCM LOS B Minor Lane/Maior Mvmt NBLn1 EBT EBR WBL WBT Capacity (veh/h) 736 1221 HCM Lane V/C Ratio 0.037 0.142 - HCM Control Delay (s) 10.1 8.4 0 HCM Lane LOS B A A HCM 95th %tile Q(veh) 0.1 - 0.5 - Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Project AM LOS Synchro 10 Report TENW Page 2 C HCM 2010 TWSC 2- 8th Ave S & S 314th St 10/23/2018 Intersection Int Delay, s/veh 6-2 Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SSR Lane Configurations 4� *4 Traffic Vol, veh/h 23 9 64 7 24 2 135 99 7 0 33 35 Future Vol, vehlh 23 9 64 7 24 2 135 99 7 0 33 35 Conflicting Peds. #Ihr 7 0 5 5 0 7 5 0 5 7 0 7 Sign Control Stop Stop Stop Stop Stop Stop Free Free Free Free Free Free RT Channelized - - None - None - None - - None Storage Length - - - Veh in Median Storage, # - 0 0 0 - - 0 - Grade, % - 0 - 0 0 - - 0 - Peak Hour Factor 79 79 79 79 79 79 79 79 79 79 79 79 Heavy Vehicles, % 0 0 0 4 4 4 4 4 4 2 2 2 Mvmt Flow 29 11 81 9 30 3 171 125 9 0 42 44 Ma'orlMinor Minor2 Minorl Ma or1 Ma'oQ Conflicting Flow All 566 554 76 594 572 144 93 0 0 141 0 0 Stage 71 71 - 479 479 - - - - - - Stage 2 495 483 - 115 93 - - Critical Hdwy 7.1 6.5 6.2 7.14 6.54 6.24 4.14 - 4.12 Critical Hdwy Stg 1 6.1 5.5 - 6.14 5.54 - - - Critical Hdwy Stg 2 6.1 5.5 . 6.14 5.54 - - Follow-up Hdwy 3.5 4 3.3 3.536 4.036 3.336 2.236 - 2.218 Pot Cap-1 Maneuver 438 443 991 414 427 898 1489 - - 1442 Stage 1 944 840 - 564 552 - - - Stage 2 560 556 885 814 - - - Platoon blocked, % Mov Cap0 Maneuver 366 383 981 332 369 888 1480 1434 Mov Cap-2 Maneuver 366 383 - 332 369 - - - Stage 1 821 835 - 491 480 - Stage 2 455 484 - 798 809 - Approach EB WB NB SS HCM Control Delay, s 12 15.9 4.3 0 HCM LOS B C Minor Lane/Major Mvmt NEL NBT NBR EBLn1WBLni SBL SBT SBR Capacity (veh/h) 1480 633 373 1434 HCM Lane VIC Ratio 0.115 - 0.192 0.112 - HCM Control Delay (s) 7.8 0 12 15.9 0 HCM Lane LOS A A B C A HCM 95th % ile Q(veh) 0.4 - 0.7 0.4 0 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Project AM LOS Synchro 10 Report TENW Page 4 HCM 2010 TWSC 3: 8th Ave S & S 315th St/S 315 St 10123/2018 Intersection Int Delay, s/veh 4 Movement EBL EBT EBR WBL VVBT WBR NBL NBT NBR S8L SBT SBR Lane Configurations ca Traffic Vol, veh/h 37 1 62 7 0 8 3 196 13 3 99 1 Future Vol, veh/h 37 1 62 7 0 8 3 196 13 3 99 1 Conflicting Peds, #/hr 4 0 82 102 0 24 82 0 102 24 0 4 Sign Control Stop Stop Stop Stop Stop Stop Free Free Free Free Free Free RT Channelized - None None None - None Storage Length - - Veh in Median Storage, # - 0 0 0 - 0 - Grade, % - 0 0 0 - 0 - Peak Hour Factor 78 78 78 78 78 78 78 78 78 78 78 78 Heavy Vehicles, % 10 10 10 0 0 0 5 5 5 1 1 1 Mvmt Flow 47 1 79 9 0 10 4 251 17 4 127 1 'Ma or/Niliniu Minor2 Minorl Maori Maor2 Conflicting Flow All 515 596 312 648 588 386 210 0 0 370 0 0 Stage 1 218 218 370 370 - - - - Stage 2 297 378 278 218 - - Critical Hdwy 7.2 6.6 6.3 7.1 6.5 6.2 4.15 4.11 Critical Hdwy Stg 1 6.2 5.6 - 6.1 5.5 - - Critical Hdwy Stg 2 6.2 5.6 6.1 5.5 - - - Follow-up Hdwy 3.59 4.09 3.39 3.5 4 3.3 2.245 - 2.209 Pot Cap-1 Maneuver 458 406 710 386 424 666 1343 - 1194 Stage 1 766 708 - 654 624 - - Stage 2 695 601 - 733 726 - Platoon blocked, % - Mov Cap-1 Maneuver 409 343 605 278 359 597 1251 1093 Mov Cap-2 Maneuver 409 343 - 278 359 - - - - Stage 1 711 657 - 596 568 Stage 2 667 548 - 579 674 Approach EB WB NB SS HCM Control Delay, s 14.4 14.7 0.1 0.2 HCM LOS B B Knor Lane/Major Mvmt NBL NST NBR EBLn1WBLn1 SBL SBT SBR Capacity (veh/h) 1251 511 389 1093 HCM Lane V/C Ratio 0.003 - 0.251 0.049 0.004 HCM Control Delay (s) 7.9 0 14.4 14.7 8.3 0 HCM Lane LOS A A B B A A HCM 95th %tile Q(veh) 0 - 1 0.2 0 - - Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Project AM LOS Synchro 10 Report TENW Page 6 HCM 2010 TWSC 4-. West Drivewa /7th Ave S & S 314th St 10/23/2018 InterseClion Int Delay, s/veh Movement 3.2 EBL EBT EBR WBL WBT WBR NBL NBT NBR SSL SBT SBR Lane Configurations 4 *4 *4 + Traffic Vol, veh/h 0 63 3 27 36 4 2 2 23 7 3 0 Future Vol, veh/h 0 63 3 27 36 4 2 2 23 7 3 0 Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0 Sign Control Free Free Free Free Free Free Stop Stop Stop Stop Stop Stop RT Channelized - - None - - None - - None - - None Storage Length - - - - - Veh in Median Storage, # - 0 - 0 0 0 Grade, % - 0 - - 0 - 0 - 0 Peak Hour Factor 92 92 92 92 92 92 92 92 92 92 92 92 Heavy Vehicles, % 2 2 2 2 2 2 2 2 2 2 2 2 Mvmt Flow 0 68 3 29 39 4 2 2 25 8 3 0 Major/Minor Ma'or1 Ma'or2 Minorl Minor2 Conflicting Flow All 43 0 0 71 0 0 171 171 70 182 170 41 Stage 1 - - 70 70 - 99 99 - Stage 2 - - - 101 101 - 83 71 - Critical Hdwy 4.12 4.12 - 7.12 6.52 6.22 7.12 6.52 6.22 Critical Hdwy Stg 1 - - 6.12 5.52 - 6.12 5.52 - Critical Hdwy Stg 2 - - - 6.12 5.52 - 6.12 5.52 - Follow-up Hdwy 2.218 - 2.218 - 3.518 4.018 3.318 3.518 4.018 3.318 Pot Cap-1 Maneuver 1566 - 1529 - 792 722 993 779 723 1030 Stage - - - 940 837 - 907 813 - Stage 2 - - - 905 811 - 925 836 - Platoon blocked, % Mov Cap-1 Maneuver 1566 - 1529 778 708 993 746 709 1030 Mov Cap-2 Maneuver - - 778 708 - 746 709 - Stage 1 - 940 837 - 907 798 - Stage 2 - 884 796 - 899 836 - Approach EB WB N8 SR HCM Control Delay, s 0 3 8.9 10 HCM LOS A B Minor LanelMaior Mvmt NBLn1 EBL EBT EBR WBL WBT WBR SBLnl Capacity (veh/h) 945 1566 1529 735 HCM Lane V/C Ratio 0.031 - 0.019 - 0.015 HCM Control Delay (s) 8.9 0 7.4 0 10 HCM Lane LOS A A A A B HCM 95th %tile Q(veh) 0.1 0 0.1 - 0 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Project AM LOS Synchro 10 Report TENW Page 8 HCM 2010 TWSC 1-. East Driveway & S 314th St 10/23/2018 Intersection Int Delay, s/veh Movement 2.8 EBT EBR 'WBL WBT NBL NBR Lane Configurations 1� 4 Y Traffic Vol, veh/h 54 8 47 58 0 11 Future Vol, veh/h 54 8 47 58 0 11 Conflicting Peds, #/hr 0 112 32 0 112 32 Sign Control Free Free Free Free Stop Stop RT Channelized - None - None - None Storage Length - - - 0 Veh in Median Storage, # 0 - 0 0 Grade, % 0 - 0 0 Peak Hour Factor 73 73 73 73 73 73 Heavy Vehicles, % 0 0 13 13 0 0 Mvmt Flow 74 11 64 79 0 15 Ma odMinor Ma'orl Ma'or2 Minorl Conflicting Flow All 0 0 197 0 511 224 Stage 1 - - - 192 - Stage 2 - - - 319 - Critical Hdwy - 4.23 - 6.4 6.2 Critical Hdwy Stg 1 - - - 5.4 - Critical Hdwy Stg 2 - - - 5.4 - Follow-up Hdwy - - 2.317 - 3.5 3.3 Pot Cap-1 Maneuver - - 1312 - 526 820 Stage 1 - - - 845 - Stage 2 - - 741 - Platoon blocked, % Mov Cap-1 Maneuver - 1190 409 724 Mov Cap-2 Maneuver - 409 - Stage 1 723 Stage 2 672 Approach EB WB NB HCM Control Delay, s 0 3.7 10.1 HCM LOS B Minor Lane/Maier Mvmt NBLn1 EBT EBR WBL WBT Capacity (veh/h) 724 - 1190 - HCM Lane VIC Ratio 0.021 - 0.054 - HCM Control Delay {sj 10.1 - 8.2 0 HCM Lane LOS B - A A HCM 95th %tile Q(veh) 0.1 - 0.2 - Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Project PM LOS Synchro 10 Report TENW Page 2 HCM 2010 TWSC 2: 8th Ave S & S 314th St 10/23/2018 intersection Int Delay, s/veh 4.5 Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations 4� Traffic Vol, veh/h 15 12 54 7 15 2 73 112 8 0 67 30 Future Vol, veh/h 15 12 54 7 15 2 73 112 8 0 67 30 Conflicting Peds, *hr 5 0 10 9 0 4 10 0 9 4 0 10 Sign Control Stop Stop Stop Stop Stop Stop Free Free Free Free Free Free RT Channelized None - - None - None - - None Storage Length Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 - Grade, % - 0 - - 0 - - 0 - - 0 - Peak Hour Factor 82 82 82 82 82 82 82 82 82 82 82 82 Heavy Vehicles, % 0 0 0 5 5 5 5 5 5 5 5 5 Mvmt Flow 18 15 66 9 18 2 89 137 10 0 82 37 Major/Minor Minor2 Minors Ma or1 Ma"or2 Conflicting Flow All 446 445 121 480 458 156 129 0 0 156 0 0 Stage 1 111 111 - 329 329 - - - - - - Stage 2 335 334 - 151 129 - - - - - Critical Hdwy 7.1 6.5 6.2 7.15 6.55 6.25 4.15 - - 4.15 Critical Hdwy Stg 1 6.1 5.5 - 6.15 5.55 - - - - Critical Hdwy Stg 2 6.1 5.5 - 6.15 5.55 - - - - - Follow-up Hdwy 3.5 4 3.3 3.545 4.045 3.345 2.245 - - 2.245 PotCap-1 Maneuver 526 511 936 491 495 882 1438 - - 1406 Stage 1 899 807 - 678 641 - - - Stage 2 683 647 - 844 784 - - - - Platoon blocked, % - Mov Cap-1 Maneuver 476 469 920 415 454 872 1426 - 1395 Mov Cap-2 Maneuver 476 469 - 415 454 - - - Stage 1 831 801 - 627 593 - - Stage 2 613 598 - 763 778 - - Approach EB VVB N8 SB HCM Control Delay, s 11 13A 2.9 0 HCM LOS B B Minor Laneftior WO NBL NBT NBR EBLn1WBLnl SBL SBT SBR Capacity (veh/h) 1426 - 700 460 1395 HCM Lane VIC Ratio 0.062 - - 0.141 0.064 - HCM Control Delay (s) 7.7 0 - 11 13.4 0 HCM Lane LOS A A - B B A HCM 95th %tile Q(veh) 0.2 - - 0.5 0.2 0 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Project PM LOS Synchro 10 Report TENW Page 4 HCM 2010 TWSC 3: 8th Ave S & S 315th SUS 315 St 10/23/2018 Intersection Int Delay, s/veh Movement 3.3 EBL EBT EBR WBL WBT WBR NBL NST NBR SBL SBT SBR Lane Configurations 4, 41, + + Traffic Vol, veh/h 23 0 45 6 0 5 2 154 5 3 136 0 Future Vol, veh/h 23 0 45 6 0 5 2 154 5 3 136 0 Conflicting Peds, #1hr 6 0 125 126 0 7 125 0 126 7 0 6 Sign Control Stop Stop Stop Stop Stop Stop Free Free Free Free Free Free RT Channelized - - None - - None - - None - None Storage Length - - - - Veh in Median Storage, # 0 - 0 - - 0 - - 0 Grade, % 0 - - 0 - - 0 - - 0 Peak Hour Factor 79 79 79 79 79 79 79 79 79 79 79 79 Heavy Vehicles, % 17 17 17 0 0 0 6 6 6 2 2 2 Mvmt Flow 29 0 57 8 0 6 3 195 6 4 172 0 Ma'odMinor Minor2 MinoF1 Ma'orl Ma'ar2 Conflicting Flow All 519 638 423 665 635 331 297 0 0 327 0 0 Stage 1 305 305 - 330 330 - - - Stage 2 214 333 - 335 305 - - Critical Hdwy 7.27 6.67 6.37 7.1 6.5 6.2 4.16 4.12 Critical Hdwy Stg 1 6.27 5.67 - 6.1 5.5 - - - Critical Hdwy Stg 2 6.27 5.67 - 6.1 5.5 - Follow-up Hdwy 3.653 4.153 3.453 3.5 4 3.3 2.254 - 2.218 Pot Cap-1 Maneuver 444 376 600 376 399 715 1242 - 1233 Stage 1 674 636 - 687 649 - - - Stage 2 755 618 - 683 666 - - Platoon blocked, % Mov Cap-1 Maneuver 389 299 481 264 318 636 1113 - 1104 Mov Cap-2 Maneuver 389 299 - 264 318 - - - Stage 1 602 567 613 579 - - Stage 2 741 551 537 594 - - Approach EB WB NB SB HCM Control Delay, s 15 15.4 0.1 0.2 HCM LOS C C Minor Lane/Maur Mvmt NBL NBT NBR EBLn1UVBLnl SBL SBT SBR Capacity (veh/h) 1113 - 445 360 1104 - HCM Lane V/C Ratio 0.002 - - 0.193 0.039 0.003 - HCM Control Delay (s) 8.2 0 - 15 15.4 8.3 0 HCM Lane LOS A A - C C A A HCM 95th %tile Q(veh) 0 - - 0.7 0.1 0 - Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Project PM LOS Synchro 10 Report TENW Page 6 HCM 2010 TWSC 4: West Drivwa /7th Ave S & S 314th St 10/23/2018 Intersection Int Delay, s/veh 2.3 i4[oyement EBL EElT BR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations fl, *1� 41� #T# Traffic Vol, veh/h 0 44 1 12 42 5 1 1 14 5 1 0 Future Vol, veh/h 0 44 1 12 42 5 1 1 14 5 1 0 Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0 Sign Control Free Free Free Free Free Free Stop Stop Stop Stop Stop Stop RT Channelized - - None None None - - None Storage Length - Veh in Median Storage, # - 0 - - 0 - - 0 - 0 Grade, % - 0 - 0 - - 0 0 - Peak Hour Factor 92 92 92 92 92 92 92 92 92 92 92 92 Heavy Vehicles, % 2 2 2 2 2 2 2 2 2 2 2 2 Mvmt Flow 0 48 1 13 46 5 1 1 15 5 1 0 MajodMinor Ma orl Major2 Minorl Minor2 Conflicting Flow All 51 0 0 49 0 0 124 126 49 132 124 49 Stage 1 - - - 49 49 - 75 75 - Stage 2 - - - 75 77 - 57 49 - Critical Hdwy 4.12 4.12 - 7.12 6.52 6.22 7.12 6.52 6.22 Critical Hdwy Stg 1 - - - 6.12 5.52 - 6.12 5.52 - Critical Hdwy Stg 2 - - 6.12 5.52 - 6.12 5.52 - Follow-up Hdwy 2.218 - 2.218 - 3.518 4.018 3.318 3.518 4.018 3.318 Pot Cap-1 Maneuver 1555 - 1558 - 850 764 1020 840 766 1020 Stage 1 - - - 964 854 934 833 - Stage 2 - - 934 831 - 955 854 Platoon blocked, % Mov Cap-1 Maneuver 1555 - 1558 843 757 1020 821 759 1020 Mov Cap-2 Maneuver - - 843 757 - 821 759 - Stage 1 - 964 854 - 934 826 - Stage 2 - 924 824 - 940 854 - Approach ES WB NO SB HCM Control Delay, s 0 1.5 8.7 9.5 HCM LOS A A Minor Lane/Maier Mvmt NBLn1 E81- EBT EBR WBL WBT WBR SBLnl Capacity (veh/h) 986 1555 1558 810 HCM Lane V/C Ratio 0.018 0.008 - 0.008 HCM Control Delay (s) 8.7 0 7.3 0 9.5 HCM Lane LOS A A A A A HCM 95th %tile Q(veh) 0.1 0 0 - 0 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Project PM LOS Synchro 10 Report TENW Page 8 ATTACHMENT C Future Traffic Volume Estimates W TEN W 2020 AM Peak Hour Turning Movement Volumes Federal Way School District Mirror Lake Elementary School - 625 S 314th St, Federal Way, WA Growth Rate 3.0% Existing Yea 2010 En -Ea Baseline Yea 2020 53 45 2016 Existing 2020 Baseline Trip Distribution Project Trips 2020 With Project 7:4310 aM6 AM S 31- Sxb 3— + LSIIsw 4ul on orlon + i1Hm a•"••+e fNeP Wa Nue anrin4 e o 39 127 ]1 1e3 Se 66 29 r9 37 o 0 o 40 p 0 135 19 295 40 70 3f N 39 y f %Increase= 61% c 50% 90X 50% +e0% d011 50% 4f/IC 90% X X X a o 2] 46 23 ee �! 23 21 d1 n a o tb2 62 341 E1 93 ]1 118 00 Pried Stine=3o 1% ]w31e e:J9 A31 SN4M SiIBA Ave9 i rab Bake > 9a14r69— + 9]14W gm0.sres 9s,--A- 5, 139 13 Z V 330 1� 52 ji ] 11 � 146 14 7 29 350 IB 55 32 i 12 X X 90% IV% n 10% 19% +00% 1�TA 90% 6P% 10% X 48 9 6 41 S 00 6 2] 9 194 27 3 34 9 430 ?+ 96 64 ! ifi rz S ]Giro[9u= 61Y m m n n Pr¢ee .=201% am Ave ss 3uw wsemnom.w.r IxeAw N31r4v srP4.11. A..MaroaPl4 axxew araars9lvw. iaevA 9e,. epAv. malfa sq.nr.61=rAev 4 35 1 15 1 39f 94 S3 r 1fi 4 n a 16 1 372 E 100 Q 1 1] S 0% 0% 120% 0% 0% X 9 0 58 a O 4 3! ! 16 4.1 0 i90 N 1 17 %Inrmese= 51% e m n Pylp S6re= 136% xola oxr w,y-oe xw Aady:, e 311E lexY�An! —"..e.].ew..+o.. A S314-0,Aw6 ]•]eiP 9NnAve r2Wr l214m StlAa A.a>;a"1 931Y6SNNAv.b 34 ]a fw 74 59 M 36 1 d0 61 t10 ]fi fi3 0 0 70 n 5% t20% 5% S1. 50% 50X 59 ] ] 71 23 • 059 63 +fi0 .74 6fi ] 93 x %�nnease= 61X m m Prged sxere=346% u1'+e Pr�vey 1NSRO16 TENW Pape 1 011 2020 PM Peak Hour Turning Movement Volumes Federal Way School District Mirror Lake Elementary School .625 S 314th St, Federal Way, WA Growth Rate 10% Existing Yea 2916 Baseline Yea 2020 2018 Existing 2020 Baseline Trip Distribution PM Peak Generator Enter Eric 23 26 PM Peak Adfacent S.. Trdac Enter Eric 12 14 Project Trips 2020 With Project Z:A to ]:30 P]I !]t4q ],]w 1kAlrei + 13ryA leTnrt PFJJc GEnERATGk 4q l,ftaLL 9411pfy 111m ifrlera MA e e d4 p 3e +zs K 46 ! >e 3r o o 47 6 0 BS 4e 1u .r 49 ! 3a 40 c xe :111 90% fiC% +e6% so% 0% 403G 90% x o 13 21 14 46 1r 74 S 2fi e a SB 0 0 106 64 +w u fi3 4i fib %Iwease = 6.1% Proled 6kere = 25 6% g914rorgt�rAAve9 4W elxllAw9 3314m BVBrk Ave P6 GEPE-TOk 9t4M 9+AN A-s r S934p 51flW Ave9 92 1 2 21 a 331 12 53 ]5 ! 17 9B 10 1 22 10 351 13 fib ]1 1a 90% t0% 10% tpx 160X f0% 90% aox 40% 7t r r 3 4fi 1 2j 17 3 11B 15 ) 25 12 3Br fs 91 51 21 x %inr.eBSe= 61% Pr wstore= 116% e 3:46PM wkAn aR 911u gdge1rA eerr+1 1 MAv4N]+!a l/ih�d1 1 I,nAw1N ZlY gt lle g.ea Gkaa+vl 1 P—GEPEPATGX la A.!!M ]11MY }yn ! Ar la ]+M lrr.w,a.n.wr3 2 Ti s 11 32B 64 AT d fi e z 23 a 12 0 .9 a 6B A a a 0% 0% +20% 0% 0% 0 0 ]+ 0 0 2 23 5 12 B ]Be 9 is 4] 8 B L x %lnrmase = 5 1% Prai-soar. = B 1% Mia P'M1tnry•WYN Aelryyr 911OgdI� Anelyu aaT4nteneceen 5114tla S1oW Aa6 g314iA Hfln Ah Fl.eiGMti( P—GENERATOR r914d. tnlru Aw gff�l 6A S314M6NNAAws 40 14 41 e0 10 41 4fi 42 0 5 47 M B6 at 44 a tl 49 %,nrmase= 61% x 5% t30% fi% 54C r K 50% N N x m 12 ]t 1 17 14 43 y S Se 44 126 43 45 11 fi3 Proles sken= 243% Oel9 Ponied: 1=2018 TENW Page 1.11 1 a s s o c i a t e d RECE' WED earth sciences JUN242019 i n c o r p o r a t e d Updated Subsurface Exploration, Geologic Hazard, and Geotechnical Engineering Report MIRROR LAKE ELEMENTARY SCHOOL REPLACEMENT Federal Way, Washington Prepared For: FEDERAL WAY PUBLIC SCHOOLS Project No. 180213E001 February 26, 2019 a s s o c i a t e d earth sciences I li c o r i, o r e t e d February 26, 2019 Project No. 180213E001 Federal Way Public Schools 1211 South 332"d Street Federal Way, Washington 98003 Attention: Mr. Ray Vefik Subject: Updated Subsurface Exploration, Geologic Hazard, and Geotechnical Engineering Report Mirror Lake Elementary School Replacement 625 South 314th Street Federal Way, Washington Dear Mr. Vefik: We are pleased to present our updated geotechnical engineering report for the referenced project. This report summarizes the results of our subsurface exploration, geologic hazards, and geotechnical engineering studies, and offers recommendations for the design and development of the proposed project. This report is based on our review of the site plans that we received from Integrus Architecture, the project architect, on January 14, 2019. We should be allowed to review the recommendations presented in this report and modify them, if needed, once final project plans have been formulated. We have enjoyed working with you on this study and are confident that the recommendations presented in this report will aid in the successful completion of your project. If you should have any questions or if we can be of additional help to you, please do not hesitate to call. Sincerely, ASSOCIATED EARTH SCIENCES, INC. Kirkland, Washington e Kurt D. Merriman, P.E. Senior Principal Engineer KDM/Id-180213EO01-6 - Projects\20180213\KE\WP Kirkland Office 1911 Fifth Avenue I Kirkland, WA 98033 P 1425.827.7701 Mount Vernon Office 1 508 S. Second Street, Suite 1011 Mount Vernon, WA 98273 P 1425.827.7701 Tacoma Office 1 1552 Commerce Street, Suite 102 1 Tacoma, WA 98402 P 1253.722.2992 www.aesgeo.com UPDATED SUBSURFACE EXPLORATION, GEOLOGIC HAZARD, AND GEOTECHNICAL ENGINEERING REPORT MIRROR LAKE ELEMENTARY SCHOOL REPLACEMENT Federal Way, Washington Prepared for: Federal Way Public Schools 1211 South 332nd Street Federal Way, Washington 98003 Prepared by: Associated Earth Sciences, Inc. 9115th Avenue Kirkland, Washington 98033 425-827-7701 Fax: 425-827-5424 February 26, 2019 Project No. 180213EO01 Updated Subsurface Exploration, Geologic Hazard, Mirror Lake Elementary School Replacement and Geotechnical Engineering Report Federal Way, Washington Project and Site Conditions I. PROJECT AND SITE CONDITIONS 1.0 INTRODUCTION This report presents the results of our subsurface exploration, geologic hazard, and geotechnical engineering study for development of the new elementary school. Our recommendations are based on our conversations with the Federal Way Public Schools (FWPS) and on our review of the site plans that we received from Integrus Architecture, the project architect, on January 14, 2019. The site location is shown on the "Vicinity Map," Figure 1. The approximate locations of explorations completed for this study are shown on Figure 2. Interpretive exploration logs and laboratory test results are included in the Appendix. 1.1 Purpose and Scope The purpose of this study was to provide subsurface data to be utilized in the design and development of the referenced project. Our study included reviewing available geologic literature, advancing nine exploration borings, and performing geologic studies to assess the type, thickness, distribution, and physical properties of the subsurface sediments and groundwater. Geotechnical engineering studies were completed to formulate recommendations for site preparation, grading, foundations, allowable foundation soil bearing pressure, anticipated foundation and floor settlement, drainage considerations, and infiltration feasibility. This report summarizes our fieldwork and offers recommendations based on our present understanding of the project. We recommend that we be allowed to review the recommendations presented in this report and revise them, if needed, if project plans change. 1.2 Authorization We were authorized to proceed by means of an FWPS consultant agreement. This report has been prepared for the exclusive use of FWPS and their agents for specific application to this project. Within the limitations of scope, schedule, and budget, our services have been performed in accordance with generally accepted geotechnical engineering and engineering geology practices in effect in this area at the time our report was prepared. No other warranty, express or implied, is made. 2.0 PROJECT AND SITE DESCRIPTION The subject site consists of the existing Mirror Lake Elementary School campus located at 625 South 314th Street in Federal Way, Washington. The existing school building is located near the- center of the site with portable classrooms and grass playfields to the west and paved parking to the east. The site is bordered to the north by South 314th Street, to the west by February 26, 2019 ASSOCIATED EARTH SCIENCES, INC CRC/Id-180213E001-6-PiojeM1201802131KEW Page 2 Updated Subsurface Exploration, Geologic Hazard, Mirror Lake Elementary School Replacement and Geotechnical Engineering Report Federal Way, Washington Project and Site Conditions 6th Avenue South, and to the south and east by single-family residences. Overall site topography across the campus is relatively flat. A new school will be constructed northwest of the existing school building in an area currently occupied by grass playfields, covered play area, and uncovered paved play area. The project will include removal of the 9,000-gallon septic tank located near EB-9 and its drain field which traverses the site southwestward from EB-9 towards EB-5 and EB-4. Current plans depict a finished floor elevation of 435.0 feet for the new school building. The project will also include construction of new play areas, paved parking, a bus loop, bioretention facilities, and other typical improvements. 3.0 SUBSURFACE EXPLORATION Our field study included advancing nine exploration borings generally within the area of the proposed school building. The conclusions and recommendations presented in this report are based on the explorations completed for this study. The number, locations, and depths of our explorations were completed within site and budgetary constraints. The locations of the exploration borings were measured in the field from landmarks visible on the aerial photograph used as a basis for Figure 2. Interpretive exploration logs and laboratory test results are presented in the Appendix. Because of the nature of exploratory work below ground, extrapolation of subsurface conditions between field explorations is necessary. It should be noted that differing subsurface conditions may sometimes be present due to the random nature of deposition and the alteration of topography by past grading and/or filling. The nature and extent of any variations between the field explorations may not become fully evident until construction. If variations are observed at that time, it may be necessary to re-evaluate specific recommendations in this report and make appropriate changes. 3.1 Exploration Borinjgs The exploration borings were completed by advancing hollow -stem auger tools with track- and truck -mounted drill rigs. During the drilling process, samples were obtained at generally 5-foot-depth intervals. The exploration borings were continuously observed and logged by an engineering geologist from our firm. The exploration logs presented in the Appendix are based on the field logs, drilling action, and observation of the samples secured. Disturbed, but representative samples were obtained by using the Standard Penetration Test (SPT) procedure in accordance with American Society for Testing and Materials (ASTM) D-1586. This test and sampling method consists of driving a standard 2-inch, outside -diameter, split -barrel sampler a distance of 18 inches into the soil with a 140-pound hammer free -falling February 26, 2019 ASSOCIATED EARTH SCIENCES, INC. CRC/Id-180213E001-6-Projects►20180213JKE►WP Page 3 Updated Subsurface Exploration, Geologic Hazard, Mirror Lake Elementary School Replacement and Geotechnical Engineering Report Federal Way, Washington Project and Site Conditions a distance of 30 inches. The number of blows for each 6-inch interval is recorded, and the number of blows required to drive the sampler the final 12 inches is known as the Standard Penetration Resistance ("N") or blow count. If a total of 50 is recorded within one 6-inch interval, the blow count is recorded as the number of blows for the corresponding number of inches of penetration. The resistance, or N-value, provides a measure of the relative density of granular soils or the relative consistency of cohesive soils; these values are plotted on the attached exploration boring logs. The samples obtained from the split -barrel sampler were classified in the field and representative portions placed in watertight containers. The samples were then transported to our laboratory for further visual classification and laboratory testing. 4.0 SUBSURFACE CONDITIONS Subsurface conditions at the project site were inferred from the field explorations accomplished for this study, visual reconnaissance of the site, and review of selected geologic literature. The general distribution of geologic units is shown on the exploration logs. The explorations typically encountered native materials consisting of medium dense grading to very dense lodgement till sediments, underlain by very dense advance outwash deposits. Several of the exploration borings encountered surficial existing fill to a thickness of approximately 7.5 feet. We reviewed a published geologic map of the project, Geologic Map of Poverty Bay 7.5' Quadrangle, King and Pierce Counties, Washington, by Booth et al., 2004. The referenced map indicates that the site is expected to be underlain at shallow depths by Vashon lodgement till. The mapping suggests that the lodgement till is expected to be underlain by advance outwash sediments. Our on -site explorations and interpretations are generally consistent with the conditions depicted on the referenced published map. 4.1 Stratigraph Asphalt Existing asphalt paving was encountered at the surface of exploration borings EB-6 and EB-9. The asphalt had a measured thickness of approximately 3 inches below existing ground surface at both locations. Observed asphalt thicknesses are shown on the attached subsurface exploration logs. February 26, 2019 ASSOCIATED EARTH SCIENCES, INC CRC/Id-180213EO01-6-ProjecUJ20180213►KEkWP Page 4 Updated Subsurface Exploration, Geologic Hazard, Mirror Lake Elementary School Replacement and Geotechnical Engineering Report Federal Way, Washington Project and Site Conditions Grass/Topsoil A surficial layer of grass and organic topsoil was encountered at the locations of seven of the exploration borings. This organic layer was approximately 4 to 6 inches in thickness. Observed topsoil thickness is shown on the attached subsurface exploration logs. Due to their high organic content, these materials are not considered suitable for foundation, roadway, or slab -on -grade floor support, or for use in a structural fill. Fill Existing fill was observed in six exploration borings to depths varying up to 7.5 feet below existing ground level. The observed existing fill consists of loose to medium dense, silty to very silty sand with some gravel and includes variable amounts of organic material. Exploration boring EB-9 contained abundant wood debris, as depicted on the subsurface exploration log included in the Appendix. We anticipate that additional existing fill will be encountered at the locations of existing buried utilities and where existing buildings are demolished. Excavated existing fill material (except in the vicinity of EB-9) is suitable for reuse in structural fill applications if such reuse is specifically allowed by project plans and specifications, excessively organic and any other deleterious materials are removed, and moisture content is adjusted to allow compaction to the specified level and to a firm and unyielding condition. Based on our explorations completed for this study, we estimate the observed existing fill was above optimum moisture content for compaction purposes, and therefore may require drying during favorable weather prior to compaction in structural fill applications. Vashon Lodgement Till All of our explorations encountered typically medium dense grading to very dense, unsorted, silty to very silty sand with varying amounts of gravel interpreted as Vashon lodgement till. The lodgement till observed in our explorations graded from medium dense to very dense with increasing depth. Lodgement till was deposited at the base of an active ice sheet and was subsequently compacted by the weight of the overlying glacial ice. Lodgement till typically possesses high -strength and low -compressibility attributes that are favorable for support of foundations, floor slabs, and paving with proper preparation. Lodgement till is silty and moisture -sensitive. In the presence of moisture contents above the optimum moisture content for compaction purposes, lodgement till can be easily disturbed by vehicles and earthwork equipment. Careful management of moisture -sensitive soils, as recommended in this report, will be needed to reduce the potential for disturbance of wet lodgement till soils and costs associated with repairing disturbed soils. Excavated lodgement till sediments are suitable for reuse in structural fill applications if specifically allowed by project specifications, and if moisture conditions are adjusted to allow compaction to a firm and unyielding condition at the time of construction. At the time of exploration, we anticipate that the lodgement till February 26, 2019 ASSOCIATED EARTH SCIENCES, INC. CRC/Id-180213E001-6-ProjectsJ20180213JKEJWP Page 5 Updated Subsurface Exploration, Geologic Hazard, Mirror Lake Elementary School Replacement and Geotechnical Engineering Report Federal Way, Washington Project and Site Conditions sediments were above optimum moisture content for compaction purposes and would require drying during favorable dry site and weather conditions. Vashon Advance Outwash Underlying the lodgement till, exploration boring EB-5 encountered very dense, stratified, very sandy gravel with some silt and gravelly sand with varying amounts of silt interpreted as Vashon advance outwash. The observed depth to advance outwash sediments was approximately 48 feet below the existing ground surface. Advance outwash was deposited by meltwater streams from an advancing ice sheet and resembles alluvial sediments. Due to the depth below existing grade where it was observed in our explorations, we do not anticipate that advance outwash will provide direct support for structures or that excavated advance outwash will be used in structural fills. 4.2 Hydrology Groundwater seepage was observed in exploration boring EB-5 completed for this study in the month of May and in exploration borings EB-6, EB-7, and EB-9 completed in the month of July. The depth to groundwater seepage ranged from approximately 8 to 12 feet below existing ground surface at the time of drilling. We interpret this seepage to represent perched groundwater. Perched groundwater occurs when surface water infiltrates down through relatively permeable soils, such as the weathered sediments, and becomes trapped or "perched" atop a comparatively low -permeability barrier, such as silty unweathered lodgement till. This water may travel laterally and typically will follow the ground surface topography. The duration and quantity of perched seepage will largely depend on the soil grain -size distribution, topography, seasonal precipitation, on- and off -site land usage, and other factors. 4.3 Laboratory Test Results Two laboratory grain -size analyses were performed on representative selected samples collected during our subsurface exploration for this project. The tests were completed on samples of the advance outwash as part of our stormwater infiltration feasibility study. The grain -size analyses test results are included in the Appendix. February 26, 2019 ASSOCIATED EARTH SCIENCES, INC. CRC/Id-180213E001-6-ProjecUJ20180213%KEJWP Page 6 Updated Subsurface Exploration, Geologic Hazard, Mirror Lake Elementary School Replacement and Geotechnical Engineering Report Federal Way, Washington Geologic Hazards and Mitigations II. GEOLOGIC HAZARDS AND MITIGATIONS The following discussion of potential geologic hazards is based on the geologic, slope, and ground and surface water conditions, as observed and discussed herein. The discussion will be limited to slope stability, seismic, liquefaction, and erosion issues. 5.0 SLOPE STABILITY HAZARDS AND RECOMMENDED MITIGATION Based our review of King County Geographic Information Systems (GIS) data and our recent visual reconnaissance of the site, it does not appear that any slopes onsite meet Federal Way Revised Code (FWRC) definitions for treatment as Landslide Hazard Areas as defined in FWRC Section 19.145.230. No detailed assessment of slope stability was prepared as part of this report and none is warranted, in our opinion. 6.0 SEISMIC HAZARDS AND RECOMMENDED MITIGATION Earthquakes occur regularly in the Puget Sound Lowland. The majority of these events are small and are not felt by people. However, large earthquakes do occur as demonstrated by the most recent 6.8-magnitude event on February 28, 2001, near Olympia Washington; the 1965 6.5-magnitude event; and the 1949 7.2-magnitude event. The 1949 earthquake appears to have been the largest in this area during recorded history. Evaluation of return rates indicates that an earthquake of the magnitude between 5.5 and 6.0 is likely within a given 20-year period. Generally, there are four types of potential geologic hazards associated with large seismic events: 1) surficial ground rupture, 2) seismically induced landslides, 3) liquefaction, and 4) ground motion. The potential for each of these hazards to adversely impact the proposed project is discussed below. 6.1 Surficial Ground Rupture We reviewed a map of possible geologic fault traces on the Washington State Division of Geology and Earth Resources Interactive Geologic Map. The site is located within the mapped limits of the Tacoma Fault Zone. Traces of the Tacoma Fault Zone are mapped approximately 1.3 miles to the north and 1.5 miles to the south of the project site. The site does not appear to be at risk of experiencing surface rupture during a seismic event due to the distance from the site to mapped fault traces. February 26, 2019 ASSOCIATED EARTH SCIENCES, INC. CRCIld-180213E001-6-ProjecUJ20180213JKEJWP Page 7 Updated Subsurface Exploration, Geologic Hazard, Mirror Lake Elementary School Replacement and Geotechnical Engineering Report Federal Way, Washington Geologic Hazards and Mitigations 6.2 Seismically Induced Landslides It is our opinion that the potential risk of damage to the proposed development by seismically induced slope failures is low during a design -level seismic event, due to the lack of steep slopes in the immediate project area. 6.3 Liquefaction Liquefaction is a process through which unconsolidated soil loses strength as a result of vibrations, such as those which occur during a seismic event. During normal conditions, the weight of the soil is supported by both grain -to -grain contacts and by the fluid pressure within the pore spaces of the soil below the water table. Extreme vibratory shaking can disrupt the grain -to -grain contact, increase the pore pressure, and result in a temporary decrease in soil shear strength. The soil is said to be liquefied when nearly all of the weight of the soil is supported by pore pressure alone. Liquefaction can result in deformation of the sediment and settlement of overlying structures. Areas most susceptible to liquefaction include those areas underlain by non -cohesive silt and sand with low relative densities, accompanied by a shallow water table. Our explorations suggest that the potential risk of damage to the proposed development by liquefaction is low, due to the dense, glacially consolidated lodgement till sediments observed at shallow depths and the absence of significant groundwater. 5.4 Ground Motion Seismic Site Class 20151nternational Building Code Structural design of the building should follow 20151nternational Building Code (IBC) standards. We recommend that the project be designed in accordance with Site Class "Cr as defined in Table 20.3-1 of American Society of Civil Engineers (ASCE) 7 - Minimum Design Loads for Buildings and Other Structures. 6.5 Erosion Control Project plans should include implementation of temporary erosion controls in accordance with local standards of practice. Control methods should include limiting earthwork to seasonally drier periods, typically April 1 to October 31, use of perimeter silt fences, and straw mulch in exposed areas. Removal of existing vegetation should be limited to those areas that are required to construct the project, and new landscaping and vegetation with equivalent erosion mitigation potential should be established as soon as possible after grading is complete. During construction, surface water should be collected as close as possible to the source to minimize silt entrainment that could require treatment or detention prior to discharge. Timely implementation of permanent drainage control measures should also be a part of the project plans, and will help reduce erosion and generation of silty surface water onsite. February 26, 2019 ASSOCIATED EARTH SCIENCES, INC. CRC/Id-180213E001-6-ProjeMJ20180213JKEJWP Page 8 Updated Subsurface Exploration, Geologic Hazard, Mirror Lake Elementary School Replacement and Geotechnical Engineering Report Federal Way, Washington Design Recommendations III. DESIGN RECOMMENDATIONS 7.0 INTRODUCTION Our exploration indicates that, from a geotechnical engineering standpoint, the proposed project is feasible provided the recommendations contained herein are properly followed. Some portions of the site are underlain by a layer of surficial existing fill that is loose and variable. Existing fill is not suitable for support of new foundations or floor slabs and warrants remedial preparation or removal where it occurs below paving and similar lightly -loaded structures. The surficial fill is underlain at depth by dense to very dense lodgement till and advance outwash sediments that are suitable for structural support. Native sediments suitable for foundation support were observed at shallow depths in some of the building areas, and conventional shallow and spread footing foundations may be utilized if they bear directly on suitable native sediments, or on structural fill placed above suitable native sediments. 8.0 SITE PREPARATION Existing structures, paving, buried utilities, vegetation, topsoil, the septic tank and its drain field and any other deleterious materials should be removed where they are located below planned construction areas. All disturbed soils resulting from demolition activities should be removed to expose underlying undisturbed native sediments and replaced with structural fill, as needed. All excavations below final grade made for demolition activities should be backfilled, as needed, with structural fill. Erosion and surface water control should be established around the clearing limits to satisfy local requirements. Once demolition has been completed, existing fill should be addressed. The observed thickness of existing fill ranged up to approximately 7.5 feet below existing grades. Observed thickness of existing fill at each exploration location is depicted on Figure 2. We recommend that existing fill be removed from below planned foundation elements. It is important to include remedial preparation of the existing fill in the bid documents in a way that encourages competitive pricing and reduces the potential for claims of unanticipated conditions. We are available to review project specification sections related to geotechnical issues if requested to do so. 8.1. Existing Fill Below New Paving Below planned on -site paving, existing fill free of organics should be exposed, proof -rolled, and compacted to 95 percent of the modified Proctor maximum dry density. If a firm and unyielding condition is achieved, no further remedial preparation would be needed. If excessively organic or yielding conditions are encountered, existing fill would be partially removed and replaced with imported structural fill. The depth of replacement of the existing fill below paving should be determined at the time of construction when field conditions are February 26, 2019 ASSOCIATED EARTH SCIENCES, INC. CRC11d-180113EO01-6-Projectsj10180113JKEJWP Page 9 Updated Subsurface Exploration, Geologic Hazard, Mirror Lake Elementary School Replacement and Geotechnical Engineering Report Federal Way, Washington Design Recommendations known. Alternatively, soil cement treatment could be used to complete remedial preparation of existing fill below planned new paving. 8.2 Site Drainage and Surface Water Control The site should be graded to prevent water from ponding in construction areas and/or flowing into excavations. Exposed grades should be crowned, sloped, and smooth drum -rolled at the end of each day to facilitate drainage. Accumulated water must be removed from subgrades and work areas immediately prior to performing further work in the area. Equipment access may be limited, and the amount of soil rendered unfit for use as structural fill may be greatly increased, if drainage efforts are not accomplished in a timely sequence. If an effective drainage system is not utilized, project delays and increased costs could be incurred due to the greater quantities of wet and unsuitable fill, or poor access and unstable conditions. Some of our exploration borings encountered seepage zones at the time of exploration. We anticipate that perched groundwater will be encountered in excavations completed during construction. We do not anticipate the need for extensive dewatering in advance of excavations. The contractor should be prepared to intercept any groundwater seepage entering the excavations and route it to a suitable discharge location. Final exterior grades should promote free and positive drainage away from the planned building at all times. Water must not be allowed to pond or to collect adjacent to foundations or within the immediate building area. We recommend that a gradient of at least 3 percent for a minimum distance of 10 feet from the building perimeters be provided, except in paved locations. In paved locations, a minimum gradient of 1 percent should be provided, unless provisions are included for collection and disposal of surface water adjacent to the structures. 8.3 Subgrade Protection To the extent that it is possible, existing pavement should be used for construction staging areas. If building construction will proceed during the winter, we recommend the use of a working surface of sand and gravel, crushed rock, or quarry spalls to protect exposed soils, particularly in areas supporting concentrated equipment traffic. In winter construction staging areas and areas that will be subjected to repeated heavy loads, such as those that occur during construction of masonry walls, a minimum thickness of 12 inches of quarry spalls or 18 inches of pit run sand and gravel is recommended. If subgrade conditions are soft and silty, a geotextile separation fabric, such as Mirafi 50OX or approved equivalent, should be used between the subgrade and the new fill. For building pads where floor slabs and foundation construction will be completed in the winter, a similar working surface should be used, composed of at least 6 inches of pit run sand and gravel or crushed rock. Construction of working surfaces from advancing fill pads could be used to avoid directly exposing the subgrade soils to vehicular traffic. February 26, 2019 ASSOCIATED EARTH SCIENCES, INC. CRC17d-180213EO01-6-ProjedsJ10180113JKEJWP Page 10 Updated Subsurface Exploration, Geologic Hazard, Mirror Lake Elementary School Replacement and Geotechnical Engineering Report Federal Way, Washington Design Recommendations Foundation subgrades may require protection from foot and equipment traffic and ponding of runoff during wet weather conditions. Typically, compacted crushed rock or a lean -mix concrete mat placed over a properly prepared subgrade provides adequate subgrade protection. Foundation concrete should be placed and excavations backfilled as soon as possible to protect the bearing surface. 8.4 Proof -Rolling and Subgrade Compaction Following the recommended demolition, site stripping, existing fill removal, and planned excavation, the stripped subgrade within the building and paving areas should be proof -rolled with heavy, rubber -tired construction equipment, such as a fully loaded tandem -axle dump truck. Proof -rolling should be performed prior to structural fill placement or foundation excavation. The proof -roll should be monitored by the geotechnical engineer so that any soft or yielding subgrade soils can be identified. Any soft/loose, yielding soils should be removed to a stable subgrade. The subgrade should then be scarified, adjusted in moisture content, and recompacted to the required density. Proof -rolling should only be attempted if soil moisture contents are at or near optimum moisture content. Proof -rolling of wet subgrades could result in further degradation. Low areas and excavations may then be raised to the planned finished grade with compacted structural fill. Subgrade preparation and selection, placement, and compaction of structural fill should be performed under engineering -controlled conditions in accordance with the project specifications. 8.5 Overexcavation/Stabilization Construction during extended wet weather periods could create the need to overexcavate exposed soils if they become disturbed and cannot be recompacted due to elevated moisture content and/or weather conditions. Even during dry weather periods, soft/wet soils, which may need to be overexcavated, may be encountered in some portions of the site. If overexcavation is necessary, it should be confirmed through continuous observation and testing by Associated Earth Sciences, Inc. (AESI). Soils that have become unstable may require remedial measures in the form of one or more of the following: 1. Drying and recompaction. Selective drying may be accomplished by scarifying or windrowing surficial material during extended periods of dry and warm weather. 2. Removal of affected soils to expose a suitable bearing subgrade and replacement with compacted structural fill. 3. Mechanical stabilization with a coarse -crushed aggregate compacted into the subgrade, possibly in conjunction with a geotextile. 4. Soil/cement admixture stabilization. February 26, 2019 ASSOCIATED EARTH SCIENCES, INC. CRC4d-180213E001-6-ProjectsJ201802131KE1WP Page 11 Updated Subsurface Exploration, Geologic Hazard, Mirror Lake Elementary School Replacement and Geotechnical Engineering Report Federal Way, Washington Design Recommendations 8.6 Wet Weather Conditions If construction proceeds during an extended wet -weather construction period and the moisture -sensitive site soils become wet, they will become unstable. Therefore, the bids for site grading operations should be based upon the time of year that construction will proceed. It is expected that in wet conditions additional soils may need to be removed and/or other stabilization methods used, such as a coarse crushed -rock working mat, to develop a stable condition if silty subgrade soils are disturbed in the presence of excess moisture. The severity of construction disturbance will be dependent, in part, on the precautions that are taken by the contractor to protect the moisture- and disturbance -sensitive site soils. If overexcavation is necessary, it should be confirmed through continuous observation and testing by a representative of our firm. 8.7 Temporary Cut Slopes In our opinion, stable construction slopes should be the responsibility of the contractor and should be determined during construction. For estimating purposes, however, temporary, unsupported cut slopes can be planned at 1.5H:1V (Horizontal:Vertical) in unsaturated existing fill. Temporary slopes of 1.0H:1V can be planned in unsaturated lodgement till and advance outwash sediments. These slope angles are for areas where groundwater seepage is not present at the faces of the slopes, which may require temporary dewatering in the form of pumped sumps or other measures. If ground or surface water is present when the temporary excavation slopes are exposed, flatter slope angles may be required. As is typical with earthwork operations, some sloughing and raveling may occur, and cut slopes may have to be adjusted in the field. In addition, WISHA/OSHA regulations should be followed at all times. 8.8 Frozen Subgrades If earthwork takes place during freezing conditions, all exposed subgrades should be allowed to thaw and then be recompacted prior to placing subsequent lifts of structural fill or foundation components. Alternatively, the frozen material could be stripped from the subgrade to reveal unfrozen soil prior to placing subsequent lifts of fill or foundation components. The frozen soil should not be reused as structural fill until allowed to thaw and adjusted to the proper moisture content, which may not be possible during winter months. 9.0 STRUCTURAL FILL All references to structural fill in this report refer to subgrade preparation, fill type, placement, and compaction of materials, as discussed in this section. If a percentage of compaction is specified under another section of this report, the value given in that section should be used. February 26, 2019 ASSOCIATED EARTH SCIENCES, INC. CRC11d-180213E001-6-PrajectsJ20180213JKEJWP Page 12 Updated Subsurface Exploration, Geologic Hazard, Mirror Lake Elementary School Replacement and Geotechnical Engineering Report Federal Way, Washington Design Recommendations For backfill of buried utilities in the right-of-way, the backfill should be placed and compacted in accordance with the City of Federal Way codes and standards. After stripping, planned excavation, and any required overexcavation have been performed to the satisfaction of the geotechnical engineer/engineering geologist, the surface of the exposed ground should be recompacted to a firm and unyielding condition. If the subgrade contains too much moisture, adequate recompaction may be difficult or impossible to obtain, and should probably not be attempted. In lieu of recompaction, the area to receive fill should be blanketed with washed rock or quarry spalls to act as a capillary break between the new fill and the wet subgrade. Where the exposed ground remains soft and further overexcavation is impractical, placement of an engineering stabilization fabric may be necessary to prevent contamination of the free -draining layer by silt migration from below. After recompaction of the exposed ground is tested and approved, or a free -draining rock course is laid, structural fill may be placed to attain desired grades. Structural fill is defined as non -organic soil, acceptable to the geotechnical engineer, placed in maximum 8-inch loose lifts, with each lift being compacted to 95 percent of ASTM D-1557. The top of the compacted fill should extend horizontally outward a minimum distance of 3 feet beyond the locations of the perimeter footings or roadway edges before sloping down at a maximum angle of 2H:1V. The contractor should note that any proposed fill soils should be evaluated by AESI prior to their use in fills. This would require that we have a sample of the material at least 72 hours in advance to perform a Proctor test and determine its field compaction standard. Soils in which the amount of fine-grained material (smaller than the No. 200 sieve) is greater than approximately 5 percent (measured on the minus No. 4 sieve size) should be considered moisture -sensitive. The existing fill and lodgement till soils are estimated to contain substantially more than 5 percent fine-grained material. Use of moisture -sensitive soil in structural fills should be limited to favorable dry weather and dry subgrade conditions. If fill is placed during wet weather or if proper compaction cannot be obtained, a select, import material consisting of a clean, free -draining gravel and/or sand should be used. Free -draining fill consists of non -organic soil, with the amount of fine-grained material limited to 5 percent by weight when measured on the minus No. 4 sieve fraction, and at least 25 percent retained on the No. 4 sieve. Portions of the existing fill soils observed in our explorations contained organic debris ranging in content from "some" organics to "organic rich," as depicted on the logs. Excavated existing fill is suitable for reuse in structural fill applications if such reuse is specifically allowed by project plans and specifications, if excessively organic and any other deleterious materials are removed, and moisture content is adjusted to allow compaction to the specified level and to a firm and unyielding condition. The existing fill and native soils we encountered in our explorations ranged in moisture content from moist to very moist. In order to reuse excavated February 26, 2019 ASSOCIATED EARTH SCIENCES, INC. CRC/Id-180113E001-6-Projerts1101801131KEIWP Page 13 Updated Subsurface Exploration, Geologic Hazard, Mirror Lake Elementary School Replacement and Geotechnical Engineering Report Federal Way, Washington Design Recommendations on -site soils in structural fill applications, it will be necessary to moisture -condition wet site soils by aeration and drying during favorable dry weather conditions. Alternatives to drying site soils include using imported granular soils suitable for use in structural fill, or treating wet soils with Portland cement. 10.0 FOUNDATIONS Conventional continuous spread footings may be used for building support when founded directly on undisturbed dense to very dense native soil or on structural fill placed above suitable native deposits. We recommend that an allowable bearing pressure of 3,500 pounds per square foot (psf) be used for design purposes, including both dead and live loads. An increase of one-third may be used for short-term wind or seismic loading. Foundation areas should be deepened, if necessary, to expose sediments suitable for the support of the recommended bearing pressure. Perimeter footings should be buried at least 18 inches into the surrounding soil for frost protection. However, all footings must penetrate to the prescribed bearing stratum, and no footing should be founded in or above loose, organic, or existing fill soils. All footings should have a minimum width of 18 inches. It should be noted that the area bounded by lines extending downward at 1H:1V from any footing must not intersect another footing or filled area. In addition, a 1.5H:1V line extending down from any footing must not daylight because sloughing or raveling may eventually undermine the footing. Thus, footings should not be placed near the edge of steps or cuts in the bearing soils. Anticipated settlement of footings founded on the dense to very dense natural sediments should be on the order of % inch or less with differential settlement one-half of the anticipated total settlement. Most of this movement should occur during initial dead load applications. However, disturbed soil not removed from footing or mat excavations prior to concrete placement could result in increased settlements. All footing areas should be observed by AESI prior to placing concrete to verify that the design bearing capacity of the soils has been attained and that construction conforms to the recommendations contained in this report. Such observation may be required by the City of Federal Way. A perimeter foundation drain system should be provided as discussed under the "Drainage Considerations" section of this report. The contractor must use care during site preparation and excavation operations so that the underlying soils are not softened. If disturbance occurs, the softened soils should be removed and foundations extended down to competent natural soil. Once the base of the excavation is reached, consideration should be given to "armoring" the exposed subgrade with a thin layer February 26, 2019 ASSOCIATED EARTH SCIENCES, INC. CROd-180213E001-6-Projectrj10180113jKEjWP Page 14 Updated Subsurface Exploration, Geologic Hazard, Mirror Lake Elementary School Replacement and Geotechnical Engineering Report Federal Way, Washington Design Recommendations of rock to provide a working surface during foundation construction. We recommend a 6-inch layer of crushed rock for this purpose. 10.1 Drainage Considerations Foundations should be provided with foundation drains. Drains should consist of rigid, perforated, polyvinyl chloride (PVC) pipe surrounded by washed pea gravel. The drains should be constructed with sufficient gradient to allow gravity discharge away from the proposed building. Roof and surface runoff should not discharge into the footing drain system, but should be handled by a separate, rigid, tightline drain. In planning, exterior grades adjacent to walls should be sloped downward away from the proposed structures to achieve surface drainage. 11.0 FLOOR SUPPORT Floor slabs can be supported on suitable native sediments or on structural fill placed above suitable native sediments. Floor slabs should be cast atop a minimum of 4 inches of clean, washed, crushed rock, or pea gravel to act as a capillary break. Areas of subgrade that are disturbed (loosened) during construction should be compacted to a non -yielding condition prior to placement of capillary break material. Floor slabs should also be protected from dampness by an impervious moisture barrier at least 10 mils thick. The moisture barrier should be placed between the capillary break material and the concrete slab. 12.0 FOUNDATION WALLS The following recommendations may be applied to conventional walls up to 8 feet tall. We should be allowed to offer situation -specific input for taller walls. All backfill behind foundation walls or around foundation units should be placed as per our recommendations for structural fill and as described in this section of the report. Horizontally backfilled walls, which are free to yield laterally at least 0.1 percent of their height, may be designed to resist lateral earth pressure represented by an equivalent fluid equal to 35 pounds per cubic foot (pcf). Fully restrained, horizontally backfilled, rigid walls that cannot yield should be designed for an equivalent fluid of 50 pcf. Walls with sloping backfill up to a maximum gradient of 2H:1V should be designed using an equivalent fluid of 55 pcf for yielding conditions or 75 pcf for fully restrained conditions. If parking areas are adjacent to walls, a surcharge equivalent to 2 feet of soil should be added to the wall height in determining lateral design forces. As required by the 2015 IBC, retaining wall design should include a seismic surcharge pressure in addition to the equivalent fluid pressures presented above. Considering the site soils and the recommended wall backfill materials, we recommend a seismic surcharge pressure of 5H and 10H psf, where H is the wall height in feet for the "active" and "at -rest" loading conditions, February 26, 2019 ASSOCIATED EARTH SCIENCES, INC. CRC/Id-180213E001-6-PrcjecbJ20180213JKEJWP Page 15 Updated Subsurface Exploration, Geologic Hazard, Mirror Lake Elementary School Replacement and Geotechnical Engineering Report Federal Way, Washington Design Recommendations respectively. The seismic surcharge should be modeled as a rectangular distribution with the resultant applied at the midpoint of the walls. The lateral pressures presented above are based on the conditions of a uniform backfill consisting of excavated on -site soils, or imported structural fill compacted to 90 percent of ASTM D-1557. A higher degree of compaction is not recommended, as this will increase the pressure acting on the walls. A lower compaction may result in settlement of the slab -on -grade or other structures supported above the walls. Thus, the compaction level is critical and must be tested by our firm during placement. Surcharges from adjacent footings or heavy construction equipment must be added to the above values. Perimeter footing drains should be provided for all retaining walls, as discussed under the "Drainage Considerations" section of this report. It is imperative that proper drainage be provided so that hydrostatic pressures do not develop against the walls. This would involve installation of a minimum 1-foot-wide blanket drain to within 1 foot of finish grade for the full wall height using imported, washed gravel against the walls. 12.1 Passive Resistance and Friction Factors Lateral loads can be resisted by friction between the foundation and the natural soils or supporting structural fill soils, and by passive earth pressure acting on the buried portions of the foundations. The foundations must be backfilled with structural fill and compacted to at least 95 percent of the maximum dry density to achieve the passive resistance provided below. We recommend the following allowable design parameters: • Passive equivalent fluid = 250 pcf • Coefficient of friction = 0.30 13.0 PAVEMENT RECOMMENDATIONS We understand that the project will include construction of new paved surfaces, including parking lots, access drives, a bus loop, and frontage improvements. Our recommendations contained in this report pertain only to on -site paved surfaces; for any off -site paved surfaces and frontage improvements we recommend following the City of Federal Way Public Works Development Standard Appendix 1. After the area to be paved is stripped, any organic soils are removed, and the soils are recompacted, the area should be proof -rolled with a loaded truck under the observation of AESI. Any soft, wet, organic, or yielding areas should be repaired as recommended during construction. If warranted, engineering stabilization fabric, such as Mirafi 50OX (or equivalent), should be placed over the subgrade with the edges overlapped in accordance with the February 26, 2019 ASSOCIATED EARTH SCIENCES, INC. CRC17d-180213E001-6-ProjeasJ201802131KE1WP Page 16 Updated Subsurface Exploration, Geologic Hazard, Mirror Lake Elementary School Replacement and Geotechnical Engineering Report Federal Way, Washington Design Recommendations manufacturer's recommendations. Following subgrade preparation, clean, free -draining structural fill should be placed over the fabric and compacted to 95 percent of ASTM D-1557. Where fabric is exposed, spreading should be performed such that the dozer remains on the fill material and is not allowed to operate on uncovered fabric. When 12 inches of fill have been placed, the fabric should be proof -rolled with a loaded dump truck to pretension the fabric and identify soft spots in the fill. Upon completing the proof -rolling operation, additional structural fill should be placed and compacted to attain desired grades. For driveways and private paving serving passenger cars, we recommend a paving section consisting of 3 inches of Class %-inch HMA underlain by 4 inches of crushed surfacing base course (CSBC). Alternatively asphalt treated base (ATB) or Class %-inch HMA could be used for construction access followed by repair of any construction damage and final surfacing. If this alternative is used, we recommend a minimum of 2 inches of CSBC to serve as a working surface and a minimum of 3 inches of ATB. Final surfacing should consist of 2 inches of Class %-inch HMA after any construction damage has been repaired. Paving for heavy traffic areas, such as bus lanes, fire lanes, and access for garbage and food service trucks, should consist of 4 inches of Class Y2-inch HMA above 6 inches of crushed rock base. If an ATB section is desired, we recommend a 2-inch-thick working surface of crushed rock, topped by 4 inches of ATB and 3 inches of Class %:-inch HMA. 14.0 INFILTRATION FEASIBILITY The site is underlain by existing fill in some locations that is not suitable for use as an infiltration receptor. Native sediments shallower than approximately 50 feet at this site consist of glacially consolidated lodgement till. Lodgement till is not suitable for use as a stormwater infiltration receptor, and therefore conventional shallow infiltration strategies are not feasible at this site. Exploration boring EB-5 extended to a depth of approximately 61 feet and encountered unsaturated advance outwash sediments stratigraphically below the lodgement till at a depth of approximately 48 feet below existing ground level. Advance outwash may be suitable for use as an infiltration receptor if unsaturated and both vertically and horizontally extensive. Underground Injection Control (UIC) wells would be required to provide infiltration of stormwater into the advance outwash sediments due to the presence of the thick cap of impermeable lodgement till. UIC wells are deep drilled wells designed to inject stormwater into a deep receptor horizon. UIC well systems have the benefit of reducing the amount of stormwater storage that is required, but also carry higher construction costs and long-term maintenance requirements. We are available on request to discuss the possibility of using UIC wells for this project. The design of a UIC well system at this site would include drilling deep exploration borings, installing deep groundwater observation wells, completion of laboratory and aquifer testing, and construction and testing of at least one UIC well during the design phase. If this approach is selected, we would work with the project civil engineer to develop a project approach, scope, and cost for our services. February 26, 2019 ASSOCIATED EARTH SCIENCES, INC. CRC/Id-180213E001-6-Projects►201802131KEIM Page 17 Updated Subsurface Exploration, Geologic Hazard, Mirror Lake Elementary School Replacement and Geotechnical Engineering Report Federal Way, Washington Design Recommendations 15.0 PROJECT DESIGN AND CONSTRUCTION MONITORING We recommend that AESI perform a geotechnical review of the plans prior to final design completion. In this way, our earthwork and foundation recommendations may be properly interpreted and implemented in the design. We are also available to provide geotechnical engineering and monitoring services during construction. The integrity of the foundation system depends on proper site preparation and construction procedures. In addition, engineering decisions may have to be made in the field in the event that variations in subsurface conditions become apparent. Construction monitoring services are not part of our currently approved scope of work. We have enjoyed working with you on this study and are confident these recommendations will aid in the successful completion of your project. If you should have any questions or require further assistance please do not hesitate to call. Sincerely, ASSOCIATED EARTH SCIENCES, INC. Kirkland, Washington Charles R. Christopher Staff Geologist Bruce W. Guenzler, L.E.G. Associate Geologist Attachments: Figure 1: Vicinity Map Figure 2: Site and Exploration Plan Appendix: Exploration Logs Laboratory Testing Results Kurt D. Merriman, P.E. Senior Principal Engineer February 26, 2019 ASSOCIATED EARTH SCIENCES, INC. CRC/Id-180213E001-6-ProjectsJ20180213JKEJWP Page 18 oft, A r W JY L t fi f i - e L n N D a x L Y _ J J 81. 99 PARK - ■ — A Lf k' e r {a C pyng 2�13rl�attonal Geo r8 7r So�fety, i` bed Y 'a s N ■ W m 0 i n 5 a s s o c i a t e c N I earth sciences A — 0 1000 2000 VICINITY MAP FEET M DATA SOURCES IREFERENCES: MIRROR LAKE ELEMENTARY SCHOOL i USGS: 7.5' SERIES TOPOGRAPHIC MAPS, ESRIII-CUBED/NGS 2013 NOTE: DU C ION OF ND WHITE REPINALMAYREDUHISCOLOR FEDERAL WAY, WASHINGTON o KING CO: STREETS, PARCELS, CITY LIMITS1118 ORIGINAL MAY REDUCE ITS EFFECTIVENESS AND LEAD TO PROJ NO, FIGURE: $ LOCATIONS AND DISTANCES SHOWN ARE APPROXIMATE INCORRECT INTERPRETATION 180213EO01 JIIATE: 1/18 1 180213 Mf mr Lk 1180213E001 F2 SE PI—dr A a Dz 's -6TH AVENUE Sfl lfH i i I a 1 N� cm (� 0 ri I I G m -P.M I I ! ! + k N� — - � rT BTH AVENUE SOUTH I vg 0 m 3 3F o �Irlr 1 m a O :0 � orm.. I m Z O C. o Z g o �5; vr s X�, cm m ly Mc D M z� �o M Q a I'n o N 3 y A z _ > rc G) O `° m 0 i3 z= m m m; p m O [— n m a b�f� tiM. X r Z N APPENDIX Exploration Lags Laboratory Testing Results 9 tZ 0 Classifications of soils in this report are based on visual field and/or laboratory observations, which include density/consistency, moisture condition, grain size, and g plasticity estimates and should not be construed to imply field or laboratory testing unless presented herein. Visual -manual and/or laboratory classification methods of ASTM D-2487 and D-2488 were used as an identification guide for the Untried Soil Classification System. m Y a o ° Well -graded gravel and Terms Describing Relative Density and Consistency LL =2 o U o GW gravel with sand, little to Density SPT""blowstfoot ° 9 :' o no fines Very Loose 0 to 4 Coarse- v v, U.°; 0 Hi Loose 4 to 10 Grained Soils Medium Dense 10 to 30 Test Symbols 0 0 0 0 o 0 0 0 0 0 Poorly -graded gravel U) 0 0 0 0 0 GP and gravel with sand, Dense 30 to 50 o o ° 0 00000 little to no fines G= Grain Size Very Dense >50 a o Z 00000 - 0 0 (2 M= Moisture Content )blows/foot ° q , p Silty gravel and silty d o ConsistencySPT A = Atterberg Limits `o c v ,S H > GM gravel with sand Very Soft 0 to 2 C= Chemical Fine- Soft 2 to 4 DD = Dry Density � 0 S! �, d LL ° 0 ° 0 Grained Soils = Permeability .6 g o Stiff 8 to 15 Clayey gravel and Very Stiff 15 to 30 Ni Gc clayey gravel with sand Hard >30 o L Component Definitions i Descriptive Term Size Range and Sieve Number c Well -graded sand and sW Sand with gravel, little Boulders Larger than 12' `o LL ; ;: to no fines Cobbles 3'to 12' c. " ` ' ' ' y Gravel W to No. 4 (4.75 mm) m > Poorly -graded sand Coarse Gravel 3'to 3/4" r°n v °' 0) SP and sand with gravel, Fine Gravel 3/4'to No. 4 (4.75 mm) 6 little to no fines Sand No. 4 (4.75 mm) to No. 200 (0.075 mm) z° Coarse Sand No. 4 (4.75 mm) to No. 10 (2.00 mm) .. Silty Sand and Medium Sand No. 10 (2.00 mm) to No. 40 (0.425 mm) -o rn = `. sM silty sand with Fine Sand No. 40 (0.425 mm) to No. 200 (0.075 mm) m U m c a E - gravel Sift and Clay Smaller than No. 200 (0.075 mm) in LL- N - Clayey sand and (3) Estimated Percentage Moisture Content in Ni 'SC clayey sand with gravel Component Percentage by Weight Dry - Absence of moisture, dusty, dry to the touch Trace <5 Slightly Moist - Perceptible Silt, sand silt, ravel sift, Y gravelly moisture ML sift with sand or ravel g Some 5 to <12 > � Moist -Damp but no visible ui w Modifier 12 to <30 water Clay of low to medium N U (silty, sandy, gravelly) Very Moist - Water visible but c v a plasticity; silty, sandy, or not free draining y CL gravely clay, lean clay Very modiirer 30 to <50 Wet -Visible free water, usually (silty, sandy, gravely) from below water table y N a Organic clay or sift of low Symbols N-1 OL plasticity Blows/6'or ° Sampler portion of 6° Cement grout ° — Type `` / i Type surface seal Elastic sift, clayey sift, sift 2.0' OD ,o Sampler o o ° MH with micaceous or 5 Description Split -Spoon Bentonite seal ° diatomaceous fine sand or Sampler 3.0' OD Split -Spoon Sam ler P Finer pack with 1°° ao _P (SP J 3.25'OD Split -Spoon Ring Sampler (blank I casing Cla of hi h lactic Y g P ity, r°n 'D �' sandy or gravely clay, fat Bulk sample 3.0 OD Thin Wall Tube Sampler section Screened cashCH 9 E clay with sand or gravel (including Shelby tube)wah i rte tp ck Grab Sample End cap c Q /i�/`f ,�/�,� Organic clay or silt of 9 Y O Portion not recovered ii J OH medium to high (1) Percentage by dry weight (4) Depth of ground water plasticity (2) (SPT) Standard Penetration Test T ATD = At time of drilling (ASTM D-1586) Z Static water level (date) (3) In General Accordance with Peat, muck and other rn o, PT highly organic soils Standard Practice for Description (5) Combined USCS symbols used for = O and Identification of Soils (ASTM D-2488) fines between 5% and 12% a s s o c i a t e d earth sciences i n c o r p o r a t e d EXPLORATION LOG KEY FIGURE Al associated Exploration Lo earth sciences Project Number Exploration Number Sheet Incorporated 180213EO01 EB-1 1 1of1 Project Name Mirror Lake Elementa[y SchQ91 Ground Surface Elevation (ft) 438 Location Eederal Way, WA Datum NAM 88 Driller/Equipment EDI /Track Date Start/Finish 5/16/18'511611 A Hammer Weight/Drop 140# / 30" Hole Diameter (in) 6 inches_ v d L 0 a 0 �, m y f0 �, Blows/Foot W o a T +0 rn m t co DESCRIPTION o 10 20 30 40 ° • Grass / Topsoil Fill Moist, dark brown, very silty, fine to medium SAND, some gravel, some organics (SM). Vashon Lodgement Till 5 Moist, gray with some zones of oxidation, silty, gravelly, fine to coarse 2 S-1 SAND; unsorted (SM). 14 28 14 - 10 S-2 _ Becomes very moist. 14 20 4 25 — 15 S-3 As above. O/E `50/ - 20 S� As above. o/ `5oi, Bottom of exploration boring at 20.4 feet No groundwater encountered. - 25 - 30 - 35 Sampler Type (ST): m 2" OD Split Spoon Sampler (SPT) ❑ No Recovery M - Moisture Logged by: DV m 3" OD Split Spoon Sampler (D & M) U Ring Sample - Water Level () Approved by. JHS ® Grab Sample 0 Shelby Tube Sample 1 Water Level at time of drilling (ATD) associated Exploration Lo earth sciences Project Number Exploration Number Sheet incorporaled 180213EO01 EB-2 1of1 Project Name Mirror Lake Elementary School Ground Surface Elevation (ft) 434 Location Federal Way. WA Datum NAM 88 Driller/Equipment EQl I Track Date Start/Finish 511 R�/18 5/1 E/18 Hammer Weight/Drop 140# Hole Diameter (in) y V O .O �, N y Blows/Foot N N r a �o t o T Uri DESCRIPTION U mm 3 ° 10 20 30 40 It AA Grass ! Topsoil Fill Moist, dark brown, silty, fine to medium SAND, some gravel, some orpanics(SM), Vashon Lodgement TIII 5 Moist, gray, silty, fine SAND, some gravel; unsorted (SM). 1014 S-� :: 32 18 - 10 S-2 Becomes gray. U9 - 15 S-3 Becomes moist to very moist, some coarse SAND (SM). 0R 650/ . - 20 S-4 " As above. 0/ A 650 " Bottom of o0oration Wng at 20.3 feet No groundwater encountered. - 25 - 30 - 35 Sampler Type (ST): m 2" OD Split Spoon Sampler (SPT) No Recovery M - Moisture Logged by: DV m 3" OD Split Spoon Sampler (D & M) Ring Sample �Z Water Level() Approved by: JHS ® Grab Sample 0 Shelby Tube Sample 1 Water Level at time of drilling (ATD) aa.s0cIatad Exploration Lo earth sciences Project Number Exploration Number Sheet incorporated 180213EO01 EB-3 1 1of1 Project Name Ground Surface Elevation (ft) 429 Location Eederal Way WA Datum VD RR Driller/Equipment EDI / Track Date Start/Finish 5/1 Hammer Weight/Drop 140# 130" Hole Diameter (in) R inches r a UC a� O , d > Blows/Foot tl1 FT o T c7� �o mm t DESCRIPTION 0 3 10 20 30 40 ° •' Grass / Topsoil Fill 5 Moist, dark brown, organic rich, silty, fine to medium SAND, trace gravel, 1 S-1 some roots (SM). 3 A5 2 Vashon Lodgement Till - 10 Moist, gray with trace zones of oxidation, silty, gravelly, fine to medium 15 S-2 SAND; unsorted (SM). 25 150/ " 0/ - 15 As above. 13 S-3 12 40 28 - 20 S 4 . Very moist, gray, very ravel) silty, fine to coarse SAND; unsorted(SM).36 rY 9 Y, rY gravelly, tY, 0� 650/ " Bottom of exploration boring at 21 feet No groundwater encountered. - 25 - 30 - 35 Sampler Type (ST): 0 2" OD Split Spoon Sampler (SPT) No Recovery M - Moisture Logged by: DV 3" OD Split Spoon Sampler (D & M) Ring Sample Q Water Level () Approved by: JHS ® Grab Sample © Shelby Tube Sample 1 Water Level at time of drilling (ATD) associated Exploration Lo earth sciences Project Number Exploration Number Sheet Incorperated 180213EO01 EB-4 1of1 Project Name Mirror Lake Elemenjilry $cbool Ground Surface Elevation (ft) 432 Location Ferieral Way, Datum NAVn RR Driller/Equipment EQ1 I Track Date Start/Finish 511 R/1 R 511611 R Hammer Weight/Drop 140# 130" Hole Diameter (in) 6 inchei n a� C O •—y m a) d J to w Blows/Foot w uJ H t Q t T y t7 � DESCRIPTION 0 m m 10 20 30 40 ° } y' • Grass I Topsoil Fill 5 S-1 Moist, dark brown, very silty, fine to medium SAND, trace to some gravel, 5 A32 -' some o anlcs SM . 14 18 Vashon Lodgement Till Moist, oxidized gray, silty, fine to medium SAND, some gravel; unsorted (SM). - 10 S-2 . • = Becomes gray. �/ ^ Driller adding water. - 15 S-3 As above. - 20 S 4 : No recovery due to rock. 1 Bottom of exploration boring at 20.1 feet No groundwater encountered. - 25 - 30 - 35 Sampler Type (ST): m 2" OD Split Spoon Sampler (SPT) ❑ No Recovery M - Moisture Logged by: DV X OD Split Spoon Sampler (D & M) [] Ring Sample Q Water Level() Approved by: JHS ® Grab Sample ® Shelby Tube Sample 1 Water Level at time of drilling (ATD) associated Exploration Lo e a r t h sciences Project Number Exploration Number Sheet incorporated 180213EO01 EB-5 1of2 Project Name Mirror Lake Elementary School Ground Surface Elevation (ft) 43 Location Federal Way, WA Datum NAM RR Driller/Equipment EDI I mk Date Start/Finish Hammer Weight/Drop Hole Diameter (in) y a V O a� •.O�- — N N� J w Blows/Foot N HO �0 T �� DESCRIPTION O 10 20 30 40 :., Grass / TopsolI - 6 inches Vashon Lodgement Till Hard drilling at 1 foot. 5 '. ry moist, light brownish gray, silty, fine to medium SAND, trace gravel is ■ S.1 M (S 7 14 - 10 Moist, light brown to light gray with minor oxidation, very silty, fine SAND, 15 S-2 = - trace gravel; unsorted (ML-SM). 38 501 " Erratic drilling observed 12 to 13 feet. - 15 S-3 _ Very moist, light brawn to light gray, very silty, fine to medium SAND, trace IA S01 gravel; unsorted (SM). - 20 Becomes silty. 24 S-4 ::.•_ 25 38 - 25 Becomes very silty, fine SAND, some gravel. 19 S-5 38 5Q1 - 30 S-6 _ Becomes fine to medium SAND, trace gravel. 0 - 35 S-7 ;, As above. 0 50 Sampler Type (ST): m 2" OD Split Spoon Sampler (SPT) No Recovery M - Moisture Logged by: TG m 3" OD Split Spoon Sampler (D & M) Ring Sample SZ Water Level() Approved by: JHS ® Grab Sample Q Shelby Tube Sample 1 Water Level at time of drilling (ATD) Cieted Exploration Lo eas earth sciences Project Number Exploration Number Sheet 1ncorpora1ed 180213EO01 EB-5 1 2of2 Project Name Miaor Lake Elementary School Ground Surface Elevation (ft) 434 _ Location Federal Way, WA _ Datum NAVD RR Driller/Equipment EDI / Truck Date Start/Finish 5117118 5117118 Hammer Weight/Drop 140# / 30" Hole Diameter (in) F inchei t y, V — a� C 0 �, N w Blows/Foot H W a a S E m 3: E w? o a`, p T DESCRIPTION o U 3 m ° 10 20 30 40 - Sample may not be representative of depth; driller noted pounding on rock. 0! Drilled on rock for 10 minutes before breaking through it. - 45 T S-g : Moist to very moist, light brownish gray to ggra , silty, fine to medium 0A.650! ^ SAND, some gravel; somewhat massive {SM . f Vashon Advance Outwash Y c ' Slightly easier drill action. - 50 S-10 a o Moist to very moist, light brownish gray to dark gray, very sandy. GRAVEL, 106 ,f! „ some silt; stratification obvious in sand; layers (1/16 to 1/8 inches thick) of c 0 silt in sample (GP -GM). . 4 - 55 S-11 -: Moist, gray to dark gray, gravelly, fine to medium SAND, some to trace silt o ,�! , (SP-SM). - 60 S-12 ; : .; As above; some silt; massive. p0 �50! Bottom of wooration boring at 61 feet Permed groundwater encountered at 8 feet at time of drilling. — 65 - 70 - 75 Sampler Type (ST): m 2" OD Split Spoon Sampler (SPT) No Recovery M - Moisture Logged by: TG 3" OD Split Spoon Sampler (D & M) Ring Sample �.Z Water Level() Approved by: JHS ® Grab Sample ® Shelby Tube Sample 1 Water Level at time of drilling (ATD) a S So cl a t e d Exploration Log earth sciences Project Number Exploration Number Sheet n co r P o ra t e d 180213E001 EB-6 I 1of1 Project Name MiMor Lake Elementaty,9chool Ground Surface Elevation (ft) 436 Location Datum NAVn88 Driller/Equipment ruck-RigDate Start/Finish 7/9511 R 7��18 Hammer Weight/Drop Hole Diameter (in) 8 inches V p a� C O d 07 N 3 f0 w Blows/Foot H N t- n a S E E, S o a� o T Um) O to DESCRIPTION o U io Co 10 20 30 40 Asphalt - -3 Inches Fill Slightly harder drilling observed 1 to 1.5 feet. Drill cuttings: Moist, light brownish gray, silty, fine SAND, some gravel (SM). 5 Moist, light brownish gray, very silty, fine SAND, trace gravel (SM). 5 �2 S-1 Sampler pushing rock, blowcounts may be overstated, poor recovery. s 19 Vashon Lodgement Till Harder drilling at 7.5 feet. - 10 S-2 = • = Moist to very moist, light brownish gray with minor oxidation, very slit, fine SAND, 16 29 650/ - • to medium trace gravel; unsorted (SM). 1/5. i" .5" - 15 1S-3 Moist, gray, ve sil , fine SAND to sandy, SILT, trace gravel; unsorted, minor icflakes LAIL . o/ ►50/ " Bottom d exploration baring at 15.5 feet Perched groundwater encountered at -12 feet. - 20 - 25 - 30 - 35 Sampler Type (ST): m 2" OD Split Spoon Sampler (SPT) No Recovery M - Moisture Logged by: TG m 3" OD Split Spoon Sampler (D & M) Ring Sample -7 Water Level 0 Approved by: CJK IN Grab Sample ® Shelby Tube Samplet Water Level at time of drilling (ATD) assnclated Exploration L,o earth sciences Project Number Exploration Number Sheet incorporated 180213EO01 EB-7 1of1 Project Name Ground Surface Elevation (ft) 438 Location Federal Way. WA Datum NAVn88 ❑rilledEquipment EDI 1 Truck -Rig Date Start/Finish 717r,118 717R14 R Hammer WeightlDrop Hole Diameter (in) 8 inures 9 N a U— a c O =y d m > = -(A Blows/Foot w N H r T m t o m 0 Cl) DESCRIPTION o " 3 m ° 10 20 30 40 Grass / Topsoil - -4 Inches Vashon Lodpment Tull Hard drilling at 1 foot. Drill cuttings: Moist, light brownish gray, very silty, fine SAND, some gravel (SM). 5 Moist, light brownish gray, very silty, fine SAND, trace gravel; unsorted 11 S-1 . (SM). 15 A33 18 - 10 As above, driller noted pounding on rock, broken rock in sampler.22 5fli " S-3 :. Very moist, II ht brownish gray, silty, fine to medium SAND, some gravel; UI 501 unsorted SM . Bottom of exploration boring at 13.25 feet - 15 Pe+ohed groundwater encountered at -12 feet. - 20 - 25 - 30 - 35 Sampler Type (ST)! m 2" OD Split Spoon Sampler (SPT) No Recovery M - Moisture Logged by TG Y OD Split Spoon Sampler (D & M) Ring Sample S Water Level () Approved by CJK ® Grab Sample ® Shelby Tube Sample 1 Water Level at time of drilling (ATD) associated Exploration Lo earth s c i e n c e s Project Number Exptvration Number Sheet incorporaled 180213EO01 EB-8 1Of1 Project Name Mirror lake Elemerttaly School Ground Surface Elevation (ft) 436 Location Eaftm Wd. WA Datum NAVD88 Driller/Equipment Truck -Rig Date Start/Finish 7/95/18 7195118 Hammer Weight/Drop 140# 13(]" Hole Diameter (in) 8 inrhac a n —o =y d > N t0 w Blows/Foot N H w a S E 2E, E 0 T U) C7 DESCRIPTION o map 3 ° 10 20 30 40 Grass 1 Topsoil - -4 inches �Washvn Lodgement Till Drill cuttings: Dry to slightly moist, light brown, silty, fine to medium SAND, some gravel (SM). 5 Moist, light brownish gray, silty, fine to medium SAND, some gravel; 6 �a S-1 unsorted (SM). 16 30 - 10 As above, broken rock in sampler. 16 S-2:.. 30 ss 36 Bottom of exploration boring at 11.5 feet No groundwater encountered. - 15 - 20 - 25 - 30 - 35 Sampler Type (ST): m 2" OD Split Spoon Sampler (SPT) ❑ No Recovery M - Moisture Logged by: TG 3" OD Split Spoon Sampler (D & M) U Ring Sample Q Water Level Q Approved by: CJK 5 Grab Sample 0 Shelby Tube Sample 1 Water Level at time of drilling (ATD) associated Exploration Lo earth sciences Project Number Exploration Number Sheet n co r p o ra t e d 180213EO01 EB-9 1of1 Project Name Morror Lake ElementarySchool— Ground Surface Elevation (ft) 436 Location FedeLal Way. WA _ Datum _ Driller/Equipment Date Start/Finish 7125/18.7125118 Hammer Weight/Drop 140# / 30" Hole Diameter (in) R inches — (D dSO � W Blows/Foot a) a S E E •: ado E-- a� T U toDESCRIPTION 10 20 30 40 Asphalt - -3 inches � Rif Drill cuttings: Moist to very moist, dark brawn, silty, fine to medium SAND, trace gravel; abundant wood debris (SM). Harder drilling at 4 feet, drill cuttings become gray. 5 Moist, gray with odd mottled color, very silty, fine SAND, trace gravel; 8 TS-1 -' unsorted (SM). 10 A2 16 Vashon Lodgement TIII Very hard drilling 7 to 8 feet. 10 - Moist, light brownish gray, very silty, fine to medium SAND, trace gravel; 34 S-2 • • • '- unsorted. drill rods are wet after retrieving 10 foot sample SM . Bottom of e)loration boring at 11 feet Perched groundwater encountered at 8 feet. - 15 - 20 - 25 - 30 - 35 Sampler Type (ST): m 2" OD Split Spoon Sampler (SPT) ❑ No Recovery M - Moisture Logged by: TG 3" OD Split Spoon Sampler (D & M) 1] Ring Sample Q Water Level() Approved W. CJK 99 Grab Sample 0 Shelby Tube Sample i Water Level at time of drilling (ATD) w W Z U- I- Z W w w a 10C 9C 6C 7C 6C 5C 40 3C 20 10 0 Particle Size Distribution Report C C x C C F. v N M a N 1i � W1 IN11111111100011111111M I oil 11111111111111 MEN ifil I I 011111111111111111111 1111 1UU lU 1 U.l U.UI U.UU 1 V R/'111Y JILC - II1111. %+3" % Gravel % Sand % Fines Coarse Fine Coarse Medium Fine Silt I Cla 0.0 1 7.4 44.8 10.7 18.7 11.0 7.4 TEST RESULTS Opening Percent Spec.` Pass? Size Finer (Percent) (X=Fail) 1.5 100.0 1 94.6 .75 92.6 .375 58.5 #4 47.8 #8 39.2 #10 37.1 #20 27.2 #40 18.4 #60 11.9 #100 8.9 #200 7.4 #270 I 7.0 Matal_>aescrl on very sandy GRAVEL, some silt Atte er ,Limn A5TM D 431$1 PL= NP LL= NV PI= Classification USCS (D 2487)= GP -GM AASHTO (M 145)= A-1-a Coefficients 1390= 17,4332 D85= 15.5280 D60= 9.8624 D50= 6.6098 Dgp= 1.0819 D15= 0.3278 D1 p= 0.1922 Cu= 51.33 Cc= 0.62 Remarks Collected by: TG Date Received: 05/24/2018 Date Tested: 05/29/2018 Tested By: BN Checked By: BG Title: (no specification provided) Location: Onsite Sample be • EB-5 Depth: 50' a s s o c i a t e d Client: Federal Way S.D. e a r t h s c i e n c e s Project: Mirror Lake E.S. incorporate d Project No: 1.8.0213 Effll Date Sampled: 05/17/2018 Figure w w Z LL Z W oc W a 10C 9C 8C 7C 60 50 40 30 20 10 0 Particle Size Distribution Report a a c c c c c � a o o a o o a v 10 2 9 SY 111111011111111111119 90-Mil liiiismigiiiinmiiiiiiilmiiINN MINIM I iiiiiinoll�illi M 1 I iiiiii-imm�millillism liiiiii lmiiiiiiilmIillillomilli INE INN III III INN 111111 iiiiiiinollillil=llilin 111 Ellillill iuu iu % +3„ % Gravel Coarse Fine 0.0 8.8 5.7 7 V. I V.V I V.VV I GRAIN SIZE - mm. % Sand % Fines Coarse Medium Fine Silt Clay 4.1 39.1 34.1 8.2 TEST RESULTS Opening Percent Spec."FPass? Size Finer (Percent)=Fail) 1.5 100.0 1 91.2 .75 91.2 .375 89.7 #4 85.5 #8 82.1 #10 81.4 #20 77.4 #40 42.3 #60 15.6 #100 9.2 #200 8.2 #270 8.0 Material Description gravelly SAND, some silt A erne Limits W M D 43181 PL= NP LL= NV PI= Classification USCS (D 2487)= SP-SM AASHTO (M 145)= A-1-b Coefficients 1390= 10.2270 D85: 4.3293 D60= 0.5723 D50= 0.4825 D300.3450 D75= 0.2452 D10= 0.1806 CU= 3.17 Cc= 1.15 Remarks Collected by: TG Date Received: 05/24/2018 Date Tested: 05/29/2018 Tested By: BN Checked By: BG Title: (no specification provided) Location: Onsite Sample Number: EB-5 Depth: 60' a s s o c i a t e d Client: Federal Way S.D. e a r t h s c i e n c e s Project: Mirror Lake E.S. i n corporate d Project No: 180213 E00: Date Sampled: 05/17/2018 MEMORANDUM DATE: May 24, 2019 TO: Ray Vefik, PE, Capital Projects Manager CC: Casey Moore, Project Manager FWPS Support Services Center FROM: Michael J. Read, PE, Principal, TENW /ITENW Transportation Engineering NorthWest .O N.... '.tom. •• k - �'AO '•.' �, c V . . Vr EXPIRES 2 / 28 / 2021 SUBJECT: Federal Way School District - Mirror Lake Elementary School Traffic Impact Analysis TENW Project No. 3623-4 This memorandum summarizes a traffic impact analysis for the proposed renovation of Federal Way School District's Mirror Lake Elementary Schoo/located at 625 S 314th Street in Federal Way, WA. This memo includes a project description, a description of existing transportation conditions within the immediate site vicinity, methodology used to derive the trip generation estimate, trip distribution, traffic operational analysis of key off -site intersections and site driveway intersections under cumulative impacts, and identification of any transportation mitigation measures to offset traffic impacts. Project Description The proposed renovation of Federal Way School District's Mirror Lake Elementary School is located at 625 S 314th Street in Federal Way, WA. A project site vicinity map is shown in Figure 1. For the purposes of this analysis, year 2020 was the horizon year assumed to evaluate cumulative traffic impacts. The existing gross floor area built at the Mirror Lake Elementary School comprises of approximately 54,803 square -feet (including the main building and portable structures) and serves approximately 450 students. The proposed gross floor area of the new school is approximately 65,825 square -feet with a student capacity to serve up to 600 students. Therefore, there would be a net increase of approximately 8,787 square -feet and 150 students in student -capacity with the proposed renovation. Existing primary site access (North and East Driveway) is provided via one enter -only driveway at S 315th Street onto S 314th Street to the north and one exit -only driveway accessing S 315th Street onto 8th Avenue S to the south. There is also an existing designated student pick- up / drop-off area located at the northwest corner of the property with one enter -only driveway onto 6th Avenue S and one exit -only West Driveway onto S 314th Street approximately 60 feet west of 7th Avenue S between centerlines. RESUBMITTED MAY 2 8 2019 Transportation Planning j Design j Traffic Impact 8, Operations CITY OF FEDERAL WAY PO Box 65254, Seattle, WA 98155 1 Office (206) 361-7333 COMMJNFTY DEYELOPMW Q L LO Q L S 316th PI N N Q < L U>7 I �O Q L. f\ Mirror Lake Elementary School S 317th St _- S 318th P� i v]: 4t > Q, S 320th St Federal Way School District- Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis �L S 312th St I I V) 5 313th St Q w m fl h S 314th St �r N Q� m .`r 0 315th Si S 315th St S 316th St S 317th St (Not to Scale) Federal Way � T E N W Figure 1 School District Project Site Vicinity Mirror Lake Elementary School Traffic Impact Analysis IFTEN W page 2 May 24, 2019 Federal Way School District - Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis Proposed site access is provided via realigning the existing West Driveway onto S 314th Street to become the south leg of the S 314th Street and 7th Avenue S intersection, and also reconstructing the current primary East Driveway. Both proposed site driveways onto S 3141h Street would operate as full access driveways. All other existing site driveways would be removed. The renovated west parking lot would provide 11 visitor parking stalls and the renovated east parking lot would provide 49 staff parking stalls. As part of the project, roadway frontage improvements would be required along S 314th Street and 6th Avenue S. A conceptual site plan of the project is illustrated in Figure 2. Existing Transportation Conditions This section includes an inventory of existing roadway conditions, key intersections in the site vicinity, existing daily and peak hour traffic volumes, intersection levels of service, nonmotorized facilities and planned roadway improvements. Roadway Conditions The following paragraphs describe existing arterial roadways that would be used for site access. Roadway characteristics are described in terms of number of lanes, posted speed limits, shoulder types and widths. S 314th Street is a two-lane roadway. West of the North Driveway, the total pavement width is 29 feet with curbs, gutters and sidewalks on the north side of the street and 7- to 8-foot gravel shoulders on the south side of the street. East of the North Driveway, the total pavement width is 38 feet with 2-foot gravel shoulders on the south side of the street. The posted speed limit is 25 mph with a 20 mph posted speed sign when school children are present. A vehicle speed survey was conducted in ,June 2018 by /odax Data Solutions on S 314th Street between 7th Ave S and S 315th Street / North Driveway (west of the North Driveway) for Mirror Lake Elementary School, with a 50th percentile speed of 17 mph, 85th percentile speed of 24 mph and a 95th percentile speed of 27 mph in the eastbound direction, and in the westbound direction, a 50th percentile speed of 19 mph, 85th percentile speed of 27 mph and a 95th percentile speed of 30 mph. gth Avenue S is a two-lane principal collector with 11-foot travel lanes and 5-foot paved shoulders on both side of the street. The speed limit is posted at 25 mph with a 20 mph flashing posted speed during school arrival and dismissal periods. GrTEN W page 3 May 24, 2019 Federal Way School District - Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis S 314TH ST Full Access West Pocking Loti7riv Y Student Pick -Up/ _ ; Drop -Off Lot .�i s N 1 1 MIRROR LAKE - - - - - - ELEMENTARY SCHOOL a � I ' ARCHITECTURAL SITE PLAN_ Full Access Driveway I t East Parking Lot r Y Bus Pick -Up/ Drop -Off Lot S 315TH ST 9 Source: Infegrus Archifecfure Moy 20)9 (Not to Scale) Federal Way � T E N W Figure 2 School District Conceptual Site Plan MirrorL School mentary Traffic Impact Analysis V TEN W page 4 May 24, 2019 Federal Way School District - Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis A vehicle speed survey was conducted in ,June 2018 by ldax Data Solutions on 8th Avenue S between S 314th Street and S 315th Street / South Driveway for Mirror Lake Elementary School, with a 50th percentile speed of 24 mph, 85th percentile speed of 29 mph and a 95th percentile speed of 32 mph in the northbound direction, and in the souhbound direction, a 50th percentile speed of 24 mph, 85th percentile speed of 29 mph and a 95th percentile speed of 32 mph. S 315th Street is a two-lane roadway with 17-foot travel lanes west of 8th Avenue S (also egress for Mirror Lake Elementary School) and a 33-foot pavement width east of 8th Avenue S (also Mirror Lake Park dead end entrance). The posted speed limit is 25 mph. Traffic Study Intersections The following intersections were analyzed during the AM and PM peak hour: 1. S 310 Street / S 315th Street / North Driveway — Becomes S 314th Street / East Driveway with the project 2. S 314th Street / 8th Avenue S 3. 8th Avenue S / S 315th Street / South Driveway — Becomes S 314th Street / S 315th Street with the project 4. S 314th Street / 7th Avenue S / West Driveway — Future 2020 Analysis only Existing Daily and Peak Hour Traffic Volumes Peak hour traffic volumes represent the highest hourly volume of vehicles passing through an intersection during a typical 7-9 AM and 4-6 PM weekday peak period. Average weekday daily traffic counts and peak period turning movement counts were conducted during the AM and PM peak hour in ,June 2018 by lclax Data Solutions during the 7-9 AM, 4-6 PM at off -site study intersections and at 2-6 PM periods at school driveway intersections. Figure 3 summarizes existing daily, AM and PM peak period turning movements at the study intersections. Traffic counts are provided in Attachment A. During the p.m. peak hour, please note that all study intersections, including the off -site study intersections (#2 and #3) were analyzed based upon the weekday p.m. peak hour of the generator for the proposed project (peak dismissal time for one hour between 2:30 to 3:45 p.m. depending upon the intersection.) as this was determined to be the p.m. peak hour for all study intersections. Existing Intersection Levels of Service Intersection levels of service (LOS) analyses were conducted at the study intersections during the weekday AM and PM peak hour of 2018 existing conditions. LOS refers to the degree of congestion on a roadway or intersection. It is a measure of vehicle operating speed, travel time, travel delays, and driving comfort. V TEN W page 5 May 24, 2019 Federal Way School District - Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis N� Q L_ LO S "' 313th Sf 4) — a 56 106 8 TEN W page 6 May 24, 2019 Federal Way School District - Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis A letter scale from A to F generally describes LOS. At signalized intersections, LOS A represents free -flow conditions -motorists experience little or no delays, and LOS F represents forced -flow conditions -motorists experience an average delay in excess of 80 seconds per vehicle. The LOS reported for signalized intersections represents the average control delay per vehicle entering the intersection. The LOS reported at stop -controlled intersections is also based on the average control delay (sec/veh) and is reported for each movement. Therefore, the reported LOS at unsignalized intersections does not represent a measure of the overall operations of the intersection. LOS calculations for both signalized and stop -controlled intersections were calculated using the methodologies and procedures outlined in the 2010 Highway Capacity Manua/ �HCM), Special Report 209, Transportation Research Board (TRB). Table 1 outlines the LOS criteria for signalized and unsignalized intersections based on these methodologies. The City of Federal Way's LOS standard is a v/c ratio of 1.2 for signalized intersections and 1.0 for unsignalized intersections. Existing AM and PM peak hour LOS analyses are summarized in Tables 2 and 3. As shown, all intersections operate at LOS B or better with a v/c ratio under 1.0 during the AM peak hour and at LOS C or better with a v/c ratio under 1.0 during the PM peak hour under 2018 existing conditions. Detailed LOS summary worksheets are included in Attachment B. Table 1 Level of Service Criteria for Intersections Signalized Intersection Unsignalized Intersection Level of Service Average Delay Range sec _ Delay Range (sec A <_ 10 <_ 10 B > 10to<_20 > 10to<_ 15 C >20to<35 > 15to<_25 D >35to<_55 >25to<_35 E >55to<_80 >35to<50 F > 80 > 50 Source: "Highway Capacity Manual", Special Report 209, Transportation Research Board, 2010. TEN W page 7 May 24, 2019 Federal Way School District - Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis Table 2 2018 Existina AM Peak Intersection Levels of Service Study Intersedion LOS Delay (se) V/C Ratio Llnsignali7ed intersections #1 -S 3141h St / North Driveway WB Left A 5.8 0.10 #2 - S 3141h St / 8th Ave S EB B 10.5 0.09 #3 - 8th Ave S / S 314th St / South Dr WB B 13.1 0.07 NB Left A 4.1 0.08 EB B 13.8 0.23 WB B 14.6 0.05 NB Left A 0.2 0.00 SB Left A 0.4 0.00 Source: "Highway Capacity Manual", Special Report 209, Transportation Research Board, 2010. Table 3 2018 Existina PM Peak Intersection Levels of Service Study Intersection LOS Delay (sec) V/C Ratio tlnsionalized lnterSeCtionl # 1 - S 314th St / North Driveway WB Left A 3.7 0.04 #2 - S 314th St / 8th Ave S EB B 10.4 0.09 #3 - 8th Ave S / S 314th St / South Dr WB B 12.4 0.05 N B Left A 2.8 0.05 EB B 15.0 0.18 W B c 16.1 0.04 NB Left A 0.2 0.00 SB Left A 0.3 0.00 Source: "Highway Capacity Manual", Special Report 209, Transportation Research Board, 2010. Nonmotorized Facilities Sidewalks are provided on the north side of S 314th Street mid -block between 8th Avenue S and S 315th Street / North Driveway west to 7h Avenue S and on the east side of 7th Avenue S. Paved shoulders are provided on 8th Avenue S. Marked crosswalks are located along the west side of the S 314th Street / S 315th Street / North Driveway intersection, on the north side of 8th Avenue S at its intersection with S 314th Street, and on the south side of 8th Avenue S at its intersection with S 315th Street / South Driveway. The crosswalks on 81h Avenue S are speed bump crosswalks. IrTEN W page 8 May 24, 2019 Federal Way School District - Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis Planned Transportation Improvements No planned transportation capacity improvements impacting Mirror Lake Elementary School based were identified in the City of Federal Way's 20182023 Transportation Improvement Program. Existing Sight Distance Field work was conducted by TENW along 8th Avenue S on Tuesday, ,June 12, 2018. Driver entering sight distance at S 315th Street / South Driveway onto 8th Avenue S is greater than 500 feet to the north and south. With a 25 mph design speed on S 300th Street (5 mph over 20 mph posted speed), based upon AASHTO design requirements, a minimum of 280 feet is required for entering sight distance and 155 feet is required for design stopping sight distance for left -turns (AASHTO Green Book, Exhibit 9-55. Design Intersection Sight Distance — Case B1 — Left Turn from Stop), and a minimum of 240 feet is required for entering sight distance and 155 feet is required for design stopping sight distance for right -turns (AASHTO Green Book, Exhibit 9-58. Design Intersection Sight Distance — Case B2 — Right Turn from Stop and Case B3 — Crossing Maneuverj. Therefore, the S 315th Street / South Driveway onto 8th Avenue S meets minimum AASHTO entering sight distance requirements. Traffic Impact Analysis The following section describes projected future baseline traffic growth, new trips generated by the proposed development, distribution and assignment of new project trips, intersection level of service and daily traffic volume impacts, nonmotorized impacts, site access, safety and circulation issues, and identification of transportation mitigation to offset impacts. 2020 Baseline Traffic Volumes Full buildout of the project is anticipated for the year 2020. Existing traffic counts estimated in 2018 were factored by 3 percent per year to estimate daily, a.m. peak hour and p.m. peak hour traffic volumes under 2020 baseline conditions without the project. Future traffic volume estimates are provided in Attachment C. Project Trip Generation Per published trip generation rates within the Trip Generation Manual, 70th Edition, 2017, Institute of Transportation Engineers (ITE), for land Use Code 520 - Elementary School, there is no correlative basis to derive estimated changes in vehicle trip generation based on changes in floor area, but better evidence of correlation on daily trips and significantly higher number of studies based on student population. Based on TENW's extensive experience in reviewing K 12, private schools, and numerous community colleges throughout the Pacific Northwest, the best correlative predictor of increase traffic demand is student enrollment at school institutions. T T E N W page 9 May 24, 2019 Federal Way School District — Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis As such, as shown in Table 4, based on the net increase of approximately 150 students, the net increase in vehicle trips on a daily basis is estimated at 284 daily trips, with approximately 98 new trips generated during peak arrival periods (AM Peak Hour of Generator), 51 new trips generated during peak dismissal periods (PM Peak Hour of Generator), and 26 new vehicle trips during the p.m. peak hour of adjacent street traffic (i.e., the worse -case scenario). Table 4 Mirror Lake Elementary School Trip Generation Summary Time Period In Out Total Weekday Daily 142 142 284 Weekday AM Peak Hour of Generator 53 45 98 Weekday PM Peak Hour of Generator 23 28 51 Weekday PM Peak Hour of Adjacent Street Traffic 12 14 26 Source: ITE Trip Generation Manual, 101h Edition, 2017 Trip Distribution and Assignment Project trip distribution is based upon traffic counts that were conducted in ,June 2018 during the a.m. and p.m. peak hour at all off -site and site driveway study intersections. Generally, distribution and assignment of project trips were assumed as follows: ➢ 27 percent north via 6th Avenue S, 7th Avenue S and 8th Avenue S; ➢ 63 percent south via 6th Avenue S and 8th Avenue S; and ➢ 10 percent east via S 314th Street. Figure 4 illustrates trip distribution and Figure 5 shows the daily, a.m. peak hour and p.m. peak hour trip assignment at the study intersections during the 2020 horizon year. Figures 6 and 7 summarize daily, a.m. peak hour and p.m. peak hour traffic volume impacts of the proposed renovation of Federal Way School District's Mirror Lake Elementary School project in 2020. Intersection Level of Service and Daily Traffic Volume Impacts Tables 5 and 6 summarize level of service impacts in 2020 assuming full buildout of the proposed renovation of Federal Way School District's Mirror Lake Elementary School project. As shown, all study intersections are projected to operate at LOS C or better with a v/c ratio under 1.0 during the a.m. and p.m. peak hour with or without the project in 2020. Detailed LOS summary worksheets are included in Attachment B. Daily traffic volumes on S 314th Street east of 7th Avenue S would increase by about 140 vehicles and on 8th Avenue S south of S 315th Street by approximately 170 vehicles with the project in 2020. T E N W page 10 May 24, 2019 Mirror Lake Elementary School S 316th PI I S 317th St I S 318th PI N a S 320th St Federal Way School District— Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis S 312th St 5 313th St �. 4th St j I > ryQ> 0 3151 1 S 315th St 316th St 1 S 317th St jNot to Scolel Federal Way G Figure 4 School District Project Trip Distribution Mirror Lake Elementary T E N W School Traffic Impact Analysis TEN W page 11 May 24, 2019 Q) > 4 S314th51171hAve S west Orivewo t 63 7 (271 N 33trrn5 Q t Z6 131 35 �L5606 8 2) (231 _, 10 N m v S 316th PI 5 317th S S 318th PI Federal Way School District - Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis 5 3141h St/East Driveway F 44 (271 �36(21) S 3itui 5+ f23) 38-i c IIS) 5 312th St S 314th S1/8th Ave S (241 F 12151 53 r4p, 3! (9) 9 (51 9 --JO- 56 127) 35 � (321 a) � I 140 L n Q C Co 5 314th 5t �4 170 N Mirror Lake Q Elementary School o 315th _ f S 315th St i _ 8th Ave S/S 3151h St 121) t 5t N a 5Ji.5th 5! (�1 S 320th St 5 Legend 45 PM Peak Hour Traffic Volumes (65) AM Peak Hour Traffic Volumes 5,000 Daily Traffic Volumes lwal to SCa1e) I'I ure 5 Federal Way TE N Wilirrr Day, AM PM Peak Hour MS�chaoOlEDlmtei�ctary Project Trip Assignment Schaal Traffic Impact Analysis TE N W page 12 May 24, 2019 Federal Way School District - Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis S 314rh St/East Driveway F aG 1671 94 (116) s�relr�v R � I (G2J 39 � p 0 h�4) Q S 312th St n m Q HI Q! 480 v (620) ¢' t\ 00 c-1 Q� S 314th St -. 2, 970 _ -- 140 (3,140) N ��' (lso) Mirror Lake Q Elementary o School 3151h St S 315th St s `v 81h Ave S/S 3151h St �a 5 316th PI 172J 3 F G Ir 7 St R .".3iS1hj5�1 37 I t 1 62� 3 (1961 13 h I N L318th I L Sti O dl h S L �a S 320th St Legend 45 Peak Hour Traffic Volumes Without Project (65) Peak Hour Traffic Volumes With Project 5,000 Daily Traffic Volumes Without Project (5,000) Daily Traffic Volumes With Project {trot 1c; Scatet Figure 6 Federal Way ct 19�9 T E NW 2020 Daily and AM Peak Mirror heoOl Elementary Hour Traffic Volume Impacts School Traffic Impact Analysis 5 314rh west Stlrih Ave S privewa e• � a 0 (OJ 7 � F 36 �• � G t�lau�ir 63 —> € 0 0 0 (31 0 � ^ {21 12J [231 S 3141h S1/81h Ave S � 2 33 0 � t-- 19 (24J S 31=m sr (23J 14 RR I914 I103 9q 164) 37 � � (135J TEN W page 13 May 24, 2019 S 314th Wei! St17th Ave S privewav 5 0) 5 i F 42 10 0� ? 1 I 44 --')W 0 0 0 (1) 0 4 (I1 11) i141 Federal Way School District - Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis S 3141h St/East Driveway F 47 (58) 38 (47) z a r<<•. x• (54) 40 --3� 0 0 S 312th St S 3141h S1/Bih Ave S 2 {301 25 67 0 F 13115) (15110- t ( 12) 10 59 '12 8 154) 37 --.4 1731 h S 314th St N �.C7 Mirror Labe Q1 1� Elementary > School 315th Sf_ S 315th St t `v 81h Ave S/S 3151h St (1361 5 S 316th PI 0 F 19 3_ <— 0 6 St 23 - S317thSt t 02 ,40 5 r; 45� (1541 N 7 S 318th PI C r h� S � d S 320th St l Legend 45 Peak Hour Traffic Volumes Without Project (65) Peak Hour Traffic Volumes With Project f Not to Scale) Figure 7 Federal Way T E N W g School District 2020 PM Peak Hour Mirror Lake Elementary Traffic Volume Impacts - Schaal Traffic Impact Analysis T T E N W page 14 May 24, 2019 Federal Way School District - Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis Table 5 2020 AM Peak Intersection Level of Service Impacts 2020 Without Project 2020 With Project Delay V/C Delay V/C Study Intersection LOS (sec) Ratio LOS_ (sec) Ratio Unsionalizd Intersections # 1 - S 314th St / East Driveway WB Left A 5.8 0.10 A 8.4 0.14 NB -- -- - B 10.1 0.04 #2 - S 314th St / 8th Ave S EB B 10.7 0.10 B 12.0 0.19 WB B 13.7 0.08 B 15.9 0.11 NB Leff A 7.6 0.09 A 7.8 0.12 #3 - 8th Ave S / S 314th St EB B 13.5 0.23 B 14.4 0.25 WB B 13.8 0.05 B 14.7 0.05 N B Left A 7.8 0.00 A 7.9 0.00 SB Left A 8.2 0.00 A 8.3 0.00 #4 - S 314th St / 7th Ave S / West Dr WB Left -- - - A 7.4 0.02 NB - - A 8.9 0.03 SB A 9.1 0.01 B 10.0 0.02 Source: "Highway Capacity Manual", Special Report 209, Transportation Research Board, 2010. Table 6 2020 PM Peak Intersection Level of Service Impacts 2020 Without Project 2020 With Project Delay V/C Delay V/C Study Intersection LOS (sec) Ratio LOS jSec) Ratio n i nafl ed Intersections # 1 - S 314th St / East Driveway WB Left A 3.7 0.04 A 8.2 0.06 NB -- B 10.1 0.02 #2 - S 314th St / 8th Ave S EB B 10.6 0.10 B 11.0 0.14 WB B 12.8 0.06 B 13.4 0.06 NB Left A 7.6 0.05 A 7.7 0.06 #3 - 8th Ave S / S 314th St EB B 14.5 0.20 c 15.0 0.19 WB B 14.8 0.04 c 15.4 0.04 NB Left A 8.2 0.00 A 8.2 0.00 SB Left A 8.2 0.00 A 8.3 0.00 #4 - S 314th St / 7th Ave S / West Dr WB Left -- - -- B 13.4 0.06 NB -- -- -- A 7.7 0.06 SB A 9.0 0.01 A 8.0 0.00 Source: "Highway Capacity Manual", Special Report 209, Transportation Research Board, 2010. Nonmotorized Impacts As part of the proposed project, raised sidewalks would be provided along the school property frontage on S 314th Street. Marked crosswalks and speed bump crosswalks on S 314th Street and 8th Avenue S would remain the same. Gg)TENW page 15 May 24, 2019 Federal Way School District- Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis Site Access and Safety Issues Existing primary site access (North and East Driveway) is provided via one enter -only driveway at S 315th Street onto S 314th Street to the north and one exit -only driveway accessing S 315th Street onto 8th Avenue S to the south. There is also an existing designated student pick- up / drop -off -area located at the northwest corner of the property with one enter -only driveway onto 6th Avenue S and one exit -only West Driveway onto S 314th Street approximately 60 feet west of 7th Avenue S between centerlines. Proposed site access is provided via realigning the existing West Driveway onto S 314th Street to become the south leg of the S 314th Street and 7th Avenue S intersection, and also reconstructing the current primary East Driveway. Both proposed site driveways onto S 314th Street would operate as full access driveways. All other existing site driveways would be removed. The renovated west parking lot would provide 11 visitor parking stalls and the renovated east parking lot would provide 49 staff parking stalls. Within the west parking lot, site circulation would travel in a one-way counterclockwise loop. Within the east parking lot, traffic circulation would be provided two ways within the parking lot. Site circulation within these parking lots is shown in Figure 2. As part of the project, roadway frontage improvements to include curb, gutter, sidewalk and landscaping would be required along S 314th Street and 6th Avenue S, which could also require right-of-way dedication. All site driveway intersections onto S 314th Street would operate at LOS B or better with a v/c ratio under 1.0 during the a.m. and p.m. peak hour with the project in 2020. Queuing Analysis and Student Pick-Up/Drop-Off Loading Areas Currently there are no vehicle queuing issues during the PM peak hour as vehicle arrivals and departures are staggered in the afternoons while parents wait for their students and a multitude of access and egress roadways for parents to travel onto (i.e., 6th Avenue S, 7th Avenue S and 8th Avenue S). Existing maximum westbound queue lengths (95th-percentile) on S 314th Street at its intersection with S 315th Street/Site Driveway (Intersection #1) were observed to be about 5 vehicles during the AM peak hour but only occurred once and lasted less than a minute. This vehicle queue was primarily due to crossing guard closures for students at the driveway entry. No other queuing issues were observed under existing conditions. With the removal of the southern driveway onto 8th Avenue S and removal of access to the existing loading area via 6th Avenue S, there would be two site driveways onto S 314th Street: Intersection # 1 — S 314th Street/S 315th St/East Driveway and Intersection #4 — S 314th Street / 7th Avenue S / West Driveway. Minor vehicle queuing on S 314th Street is anticipated to occur at these intersections related to waiting for typical gaps in conflicting traffic flows as the interior site design will provide for on -site parent pickup areas and parking maneuvers would be relocated further away from entry driveways. At Intersection # 1 — S 314th Street/S 315th Sr/East Driveway, with the proposed redevelopment, typical queues T E N W page 16 May 24, 2019 Federal Way School District- Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis during the AM peak hour or PM peak are expected to be no more than 2 vehicles in the westbound direction with the project in 2020 given the typical peak arrival patterns of parent trips during peak school arrival/dismissal periods, which is higher than modeled queuing results using traditional HCM methodologies. There are no anticipated queuing issues in the eastbound direction. Existing crossing guard stoppages would be relocated to 7h Avenue S, and as such, existing observed vehicle queuing westbound on S 3141h Street would be significantly reduced. At Intersection #4 — S 314th Street / A Avenue S / West Driveway, westbound queues are anticipated to be about 1 vehicle during the AM peak hour and PM peak hour with the project in 2020. There are no anticipated queuing issues in the eastbound direction. It should be noted that 95th percentile queue lengths for all stop -controlled movements at the site driveway intersections onto S 314th Street estimate queue lengths to be less than 25 feet or 1 vehicle during the AM and PM peak hour with the project in 2020. S 314th Street and 7th Avenue S are low traffic neighborhood roadways. The site driveway intersections onto S 314th Street would experience less than 300 entering vehicles during the AM peak hour and less than 200 entering vehicles during the PM peak hour in 2020 with the project. Peak neighborhood traffic impacts to the surrounding neighborhood occur between 10 to 15 minutes during peak hours of school arrival and dismissal times. There is approximately 400 feet of on -site storage for queued vehicles in the current student pick-up/drop-off area located at the northeast corner of the project site. Based upon observations, an additional 10 vehicles were observed to be queued adjacent to the student pick-up/drop-off area (95th-percentile observed), totaling an existing maximum queue length of 600 feet. With the proposed development, an additional demand of 3 vehicles would increase this to 660 feet. The proposed west parking lot would provide a queue length of approximately 750 feet for student pickup/drop-off loading area (serving a maximum of 38 queued vehicles). This length is provided via a dual queue lane within the 3-lane parking aisle width to accommodate additional vehicle queuing storage during peak dismissal periods beyond the curbside pick-up area. As such, the 95th-percentile queue for the parent drop- off/pick-up demand would be accommodated on -site. School Safe Walk Route Figure 8 shows safe walk routes within a 1-mile radius of Mirror Lake Elementary School. Since pedestrian access is no longer being provided to the southeast via the 8th Avenue S / S 315th Street intersection, Mirror Lake Elementary School should provide curbs, gutter and sidewalk along its property frontage on S 314th Street and 6th Avenue S. The existing crosswalk with crossing guard on S 314th Street by the existing North (East) driveway should be relocated to the west with installation of a crosswalk on the east leg of the S 314th Street and 7th Avenue S intersection, providing direct access to the school. A crossing guard should be provided during school arrival and dismissal periods at this location. .IV TEN W page 17 May 24, 2019 Federal Way School District- Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis The planned marked crosswalk with crossing guards at the S 314th Street and 7th Avenue S intersection will also include additional striping along the north side of S 314th Street between the end of the existing raised crosswalk and 81h Avenue S to delineate a 5-foot ADA pathway. With the installation of pedestrian system, crossing guards are recommended at the existing raised crosswalk on the north side of 8th Avenue S for student safely cross 8th Avenue S and travel along the sidewalk/marked shoulders on S 314th Street to access the school from the east. A 20 mph school zone flasher enhancement should be installed on 61h Avenue S and S 314th Street. Figure 9 overviews the recommended new 2Omph school zone on 6th Avenue S. Project Mitigation A review of traffic impacts to intersection levels of service, site access, and circulation issues was conducted in association with the Mirror Lake Elementary School in Federal Way, WA. The following mitigation measures are recommended to reduce or eliminate project impacts: ➢ The City of Federal Way assesses a traffic impact fee rate of $2.00 per new square - foot of floor area for elementary schools (2018 Federal Way Impact Fee and Components). Based upon a net increase of 8,787 square feet (54,803 square feet existing and 63,590 square feet future), Mirror Lake Elementary School would be assessed a traffic impact fee of $12,352.00. The final fee would be determined at building permit issuance. ➢ The applicant would be required to construct the necessary frontage improvements along S 314th Street and 6th Avenue S to include curb, gutter, sidewalk and landscaping, which could also include right-of-way donation. ➢ The existing crosswalk with crossing guard on S 314th Street by the existing North (East) driveway should be relocated to the west with installation of a crosswalk on the east leg of the S 314th Street and 7th Avenue S intersection, providing direct access to the school. A crossing guard should be provided during school arrival and dismissal periods at this location. ➢ The planned marked crosswalk with crossing guards at the S 314th Street and A Avenue S intersection will also include additional striping along the north side of S 314th Street between the end of the existing raised crosswalk and 8th Avenue S to delineate a 5-foot ADA pathway. With the installation of pedestrian system, crossing guards are recommended at the existing raised crosswalk on the north side of 8th Avenue S for student safely cross 8th Avenue S and travel along the sidewalk/marked shoulders on S 314th Street to access the school from the east. ➢ Install a 20 mph school zone flasher enhancement on 61h Avenue S and S 314th Street. If you have any questions regarding the information presented in this memo, please call me at (206) 361-7333 x 101 or mikeread@tenw.com. V TE N W page 18 May 24, 2019 Federal Way School District- Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis . QMONI. Hill. R61 - - w •^''''` QWYEwaee 8 F�•Irr.ary SNwd Y �b.Ar.r.W b ar:n swnn sr Sn�: MIRROR LAKE - � -•' :MI:Y.• .. R.HHNAM��� .• �.. .. �..... 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Goring Cwwdlsj Sfan5lgn rraflit Signal SC hOol speeci Zone Federal Way Figure 8 School District TENW School Safe Walk Route Mirror Lake Elementary School Traffic Impact Analysis TEN W page 19 May 24, 2019 • r- ASO Creole 20 MPH Speed Zone I500 Feet Nodh of S 314Ih) I �r Federal Way School District - Mirror Lake Elementary School 625 S 314th Street, Federal Way, WA Traffic Impact Analysis r • Create 20 MPH Speed Zone Figure 9 Federal Way 9 School District T E NW 20 MPH School Zone Mirror Lake Elementary Recommendations School Traffic Impact Analysis TEN W page 20 May 24, 2019 ATTACHMENT A Daily, AM & PM Peak Traffic Counts v TENW www.idaxdata.com S 315TH ST 314TH ST wa),S A Date: Tue, Jun 12, 2018 N Peak Hour Count Period: 7:00 AM to 9:00 AM Peak Hour: 7:45 AM to 8:45 AM S 314TH ST 4— 38 = _- 85 127 0 0 TEV: 193 E • n 6 $� 37 �..� PHF: 0.67 4 41 A 0 ~ 29 22 W _ e..10000 i S 314TH ST H t f 0 0 0 co HV %: PHF x a EB 1.5% 0.69 � WB 6.3% 0.65 nn NB - - V o - SB TOTAL 4.7% 0.67 Two -Hour Count Summaries S 314TH ST S 314TH ST S 315TH ST 0 Interval 15-min Rolling Start Eastbound Westbound Northbound Souhbound Total One Hour LIT LT TH RT LIT LT TH RT LIT LT TH RT LIT LT TH RT 7:00 AM 0 0 0 1 0 6 0 0 0 0 0 0 0 0 0 0 7 0 7:15AM 0 0 3 0 0 9 2 0 0 0 0 0 0 0 0 0 14 0 7:30 AM 0 0 1 3 0 8 3 0 0 0 0 0 0 0 0 0 15 0 7:45 AM 0 0 3 9 0 12 3 0 0 0 0 0 0 0 0 0 27 63 8:00 AM 0 0 16 8 1 19 14 0 0 0 0 0 0 0 0 0 58 114 8:15 AM 0 0 15 8 3 2B 18 0 0 0 0 0 0 0 0 0 72 172 8:30 AM 0 0 3 4 0 26 3 0 0 0 0 0 0 0 0 0 36 193 8:45 AM 0 0 1 1 0 4 6 0 0 0 0 0 0 0 0 0 12 178 Count Total 0 0 42 34 4 112 49 0 0 0 0 0 0 0 0 0 241 0 Peak Hour 1 0 0 37 29 1 4 85 36 0 0 0 0 0 0 0 0 0 1 193 10 Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count. Interval Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg) Start EB WB NB SB Total EB WB NB SB Total East West North South Total 7:00 AM 0 0 0 ❑ 0 ❑ 0 0 0 0 0 0 0 0 0 7:15AM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7:30 AM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7:45 AM 0 0 0 0 0 0 0 O 0 0 1 2 0 3 6 8:00 AM 1 2 0 0 3 0 0 0 0 0 1 21 0 3 25 8:15 AM 0 6 0 0 6 0 0 0 0 0 3 39 0 13 55 8:30 AM 0 0 0 0 0 0 0 0 0 0 0 4 0 3 7 8:45 AM 0 1 0 0 1 0 0 0 0 0 2 1 0 0 3 Count Total 1 9 0 0 10 0 1 0 0 0 0 7 67 0 22 96 Peak Hr 1 8 0 0 9 0 0 0 0 0 5 66 0 22 93 Mark Skaggs: (425) 250-0777 mark.skaggs@idaxdata.com www.idaxdata.com 8TH "ES WWI S 314TH ST fa Date: Tue, Jun 12, 2018 N Peak Hour Count Period: 7:00 AM to 9:00 AM Peak Hour: 7:45 AM to 8:45 AM o r Q Jo�S L T F' M N M O O I l O ; Donn .., ,— 98 0 13 TEV: 330 2 4-- 18 < 27 A 3 r� _ �0 0 52 4 35 PHF: 0.79 7 0� 0� �.- 1 V S 314TH ST *1 n CD r- t` (p W O FQ HV %: PHF EB 0.0% 0.62 ti WB 3.7% 0.75 NB 4.1% 0.85 SB 1.9% 0.64 TOTAL 3.0% 0.79 'Two -Hour Count Summaries S 314TH ST S 314TH ST 8TH AVE S 8TH AVE S 15-min Rolling Eastbound Westbound Northbound Southbound Interval Smart Total One Hour UT LT TH RT UT LT TH RT UT LT TH RT UT LT TH RT 7:00 AM 0 0 0 0 0 2 0 0 0 5 24 1 0 0 5 1 38 0 7:15 AM 0 2 0 1 0 2 2 2 0 7 29 1 0 0 14 2 62 0 7:30 AM 0 0 0 1 0 2 1 0 0 8 27 3 0 0 5 2 49 0 7:45 AM 0 0 0 3 0 2 1 0 0 13 21 0 0 0 6 2 48 197 8:00 AM 0 7 1 13 0 3 4 1 0 32 24 2 0 0 6 5 98 257 B:15 AM 0 3 2 16 0 0 9 0 0 33 18 2 0 0 8 13 104 299 8:30 AM 0 3 1 3 0 2 4 1 0 19 30 3 0 0 11 3 80 330 8:45 AM 0 0 0 2 1 0 0 0 0 8 12 2 0 1 13 2 41 323 Count Total 0 15 4 39 1 13 21 4 0 125 185 14 0 1 66 30 520 0 Peak Hour 0 13 4 35 0 7 16 2 1 0 97 93 7 1 0 0 31 23 330 0 Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count. Interval Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg) EB WB NB SB Total EB WB NB SB Total East West North South Total Start 7:00 AM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7:15AM 0 0 0 0 0 0 0 0 0 0 1 0 0 1 2 7:30 AM 0 1 0 0 1 0 0 0 0 0 1 0 0 0 1 7:45 AM 0 0 0 0 0 0 0 0 0 0 0 1 0 1 2 8:00 AM 0 0 3 0 3 0 0 0 0 0 3 2 1 0 6 8:15AM 0 1 5 0 6 0 0 0 0 0 1 0 2 0 3 8:30 AM 0 0 0 1 1 0 0 0 0 0 0 1 0 0 1 8:45 AM 0 0 0 2 2 0 0 0 1 1 0 0 1 1 2 Count Total 0 2 8 3 13 0 0 0 1 1 6 4 4 3 17 Peak Hour 0 1 8 1 10 0 0 0 0 0 4 4 3 1 12 Mark Skaggs: (425) 250-0777 mark.skaggs@idaxdata.com www.idaxdata.com 8TH AVE S S 315TH ST Date: Tue, Jun 12, 2018 N Peak Hour Count Period: 7:00 AM to 9:00 AM Peak Hour: 7:45 AM to 8:45 AM N CO P OI LU _ H co Co 10 M O C+ S 315TH ST �` nun " 4 �— o 35 TEV: 351 8 0 1s A a 0 0 4 94 1 PHF: 0.78 7 60 0 0 78 NV S 315TH ST O co N C14 w c HV %: PHF QD EB 9.6% 0.51 nn M O WB 0.0% 0.63 V r NB 4.7% 0.75 SB 1.4% 0.75 TOTAL 5.1 % 0.78 Two -Hour Count Summaries Interval S 315TH ST S 315TH ST 8TH AVE S 8TH AVE S 15-min Rolling Eastbound Westbound Northbound Southbound Start Total One Hour LIT LT TH RT LIT LT TH RT LIT LT TH RT LIT LT TH RT 7:00 AM 0 0 0 0 0 0 0 0 0 0 29 0 0 0 7 0 36 0 7:15 AM 0 0 0 0 0 0 0 1 0 0 34 1 0 0 16 0 52 0 7:30 AM 0 1 0 1 0 0 0 0 0 0 36 0 0 0 9 0 47 0 7:45 AM 0 5 0 2 0 1 0 0 0 0 34 0 0 0 11 0 53 188 8:00 AM 0 5 0 10 0 2 0 3 0 1 45 5 0 1 19 1 92 244 8:15 AM a 7 1 18 0 4 0 2 0 2 49 6 0 1 23 a 113 305 8:30 AM 0 18 0 28 0 0 0 3 0 0 27 1 0 1 15 0 93 351 8:45 AM 0 1 0 3 0 0 0 1 0 0 20 0 0 1 16 0 42 340 Count Total 1 0 37 1 62 0 7 0 10 0 3 274 13 0 4 116 1 528 0 Peak Hour 0 35 1 58 0 7 0 8 0 3 155 12 0 3 68 1 351 0 Nole: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count. Interval Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg) EB WB NB SB Total EB WB NB SB Total East West North South Total Start 7:00 AM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7:15AM 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 7:30 AM 1 0 0 0 1 1 0 0 0 0 0 1 0 0 0 1 7:45 AM 0 0 0 a 0 0 0 0 0 0 1 0 0 2 3 8:00 AM 1 0 3 0 4 0 0 0 0 0 13 3 0 19 35 8:15 AM 7 0 5 0 12 a 0 0 0 0 10 a 0 47 57 8:30 AM 1 0 0 1 2 0 0 0 0 0 0 1 0 10 11 8:45 AM 0 0 0 1 1 0 0 0 0 0 0 1 0 3 4 Count Total 9 0 8 3 20 0 0 0 0 0 26 5 1 0 81 112 Peak Hour 1 9 0 8 1 18 0 0 0 0 0 24 4 0 78 106 Mark Skaggs: (425) 250-0777 mark.skaggs@idaxdata.com www.idaxdata.com S 315TH ST Ujw, S 314TH ST Date: Tue, Jun 12, 2018 N Peak Hour Count Period: 2:00 PM to 6:00 PM Peak Hour: 2:30 PM to 3:30 PM S 314TH ST f� 44 44 F— 0 TEV: 126 31 �— 80 € •. «— 0 A —� PHF: 0.73 38 �/ 5 � —> co ©00 m 46 8 -.-� S 314TH ST n"i 43 0 (��2766 n d JLILILI�L ..... 'k � t 0 0 0 = HV %: PH o H 'n U) EB WB 0.0% 12.5% 0.58 0.74 O� NB - - 0 en o SB - - TOTAL 7.9% 0.73 Four -Hour Count Summaries S 314TH ST S 314TH ST S 315TH ST 0 15-min Rolling Eastbound Westbound Northbound Southbound Interval Start Total One Hour LIT LT TH RT LIT LT TH RT LIT LT TH RT LIT LT TH RT 2:30 PM a 0 1 2 1 2 4 0 0 0 0 0 0 0 0 0 10 0 2:45 PM a 0 2 2 0 15 12 0 0 0 0 0 0 0 0 0 31 0 3:00 PM 0 0 19 0 2 5 16 0 0 0 0 0 0 0 0 0 42 0 3:15 PM 0 0 16 4 2 9 12 0 0 0 0 0 0 0 0 0 43 126 Peak Hour 0 0 38 8 1 5 31 44 0 0 0 0 0 0 0 0 0 126 0 Note: For all three-hour count summary, see next page. Interval Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg) EB WB NB SB Total EB WB NB SB Total East West North South Total Start 2:30 PM 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 2:45PM 0 4 0 0 4 0 0 0 0 0 0 7 0 1 8 3:00 PM 0 5 0 0 5 0 0 0 0 0 4 58 0 22 84 3:15PM 0 1 0 0 1 0 0 0 0 0 1 21 0 3 25 Peak Hour 0 10 0 0 10 0 0 0 0 0 6 86 0 26 118 Mark Skaggs: (425) 250-0777 mark.skaggs@idaxdata.com www.idaxdata.com Four -Hour Count Summaries S 314TH ST S 314TH ST S 315TH ST 0 Interval 15-min Rolling Eastbound Westbound Northbound Souhbound Start Total One Hour UT LT TH RT UT LT TH RT UT LT TH RT UT LT TH RT 2:00 PM 0 0 2 1 0 2 1 0 0 0 0 0 0 0 0 0 6 0 2:15PM 0 0 3 2 0 4 6 0 0 0 0 1 0 0 0 0 16 0 2:30 PM 0 0 1 2 1 2 4 0 0 0 0 0 0 0 0 0 10 0 2:45 PM 0 0 2 2 0 15 12 0 0 0 0 0 0 0 0 0 31 63 3:00 PM 0 0 19 0 2 5 16 0 0 0 0 0 0 0 0 0 42 99 3.15 PM 0 0 16 4 2 9 12 0 0 0 0 0 0 0 0 0 43 126 3:30 PM 0 0 2 0 0 2 3 0 0 0 0 0 0 0 0 0 7 123 3:45 PM 0 0 5 0 0 0 5 0 0 0 0 1 0 0 0 0 11 103 4:00 PM 0 0 3 0 0 1 0 0 0 0 0 1 0 0 0 0 5 66 4:15 PM 0 0 2 0 0 1 2 0 0 0 0 0 0 0 0 0 5 28 4:30 PM 0 0 2 0 0 3 4 0 0 0 0 0 0 0 0 0 9 30 4:45 PM 0 0 4 1 0 3 4 0 0 0 0 0 0 0 0 0 12 31 5:00 PM 0 0 3 6 0 8 3 0 0 0 0 0 0 0 0 0 20 46 5:15PM 0 0 2 2 0 12 2 0 0 0 0 0 0 0 0 0 18 59 5:30 PM 0 0 2 0 0 1 2 0 0 0 0 1 0 0 0 0 6 56 5:45PM 0 0 3 3 0 1 0 0 0 0 0 0 0 0 0 0 1 7 51 Count Total 0 0 71 23 5 69 76 0 0 0 0 4 0 0 0 0 248 0 Peak Hour 0 0 38 8 5 31 44 0 0 0 0 0 0 0 0 0 126 0 Note: Four-hour count summary volumes include heavy vehicles but exclude bicycles in overall count. Interval Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg) Start EB WB NB SB Total EB WB NB SB Total East West North South Total 2:00 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2:15PM 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 2:30 PM 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 2:45PM 0 4 0 0 4 0 0 0 0 0 0 7 0 1 a 3:00 PM 0 5 0 0 5 0 0 0 0 O 4 58 0 22 84 3:15PM 0 1 0 0 1 0 0 0 0 0 1 21 0 3 25 3:30 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3:45 PM 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 4:00 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4:15PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4:30 PM 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 4:45 PM 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 5:00 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5:15PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5:30 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5:45 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Count Total 1 11 0 0 12 1 1 0 0 2 6 86 0 26 118 Peak Hr 0 10 0 0 10 0 0 0 0 0 6 86 0 26 118 Mark Skaggs: (425) 250-0777 mark.skaggs@idaxdata.com www.idaxdata.com 8TH "E S wa.), S 314TH ST 0�4 Date: Tue, Jun 12, 2018 N Peak Hour Count Period: 2:00 PM to 6:00 PM Peak Hour: 2:30 PM to 3:30 PM Co ao � r U) Qen 6� F=- N co O O 00 I toU S 314TH ST O 1 l 0j 0 2 J00000 ] 9 TEV: 331 4� 12 2 h'1 4 p E5 -� 53 PHF: 0.82 7 9 ^� 0 35 � S 314TH ST n n i -� 17 O� Q o �� 0 ~ g 1J E •{]�[][�j�[] � ;t O (0 to ao w r ¢ 0 HFV %: PHF EB 0.0% 0.51 Ln o WB 4.8% 0.75 o NB 5.3% 0.80 SB 4.6% 0.70 TOTAL 4.2% 0.82 Four -Hour Count Summaries Interval S 314TH ST S 314TH ST 8TH AVE S 8TH AVE S 15-min Rolling Eastbound Westbound Northbound Southbound Start Total One Hour LIT LT TH RT LIT LT TH RT LIT LT TH RT LIT LT TH RT 2:30 PM 0 0 1 0 0 1 3 0 0 8 27 3 0 0 10 1 54 0 2:45 PM 0 0 1 1 0 2 2 0 0 22 20 1 0 0 18 9 76 0 3:00 PM 0 3 3 18 0 1 3 2 0 17 35 1 0 0 12 6 101 0 3:15 PM 0 6 4 16 0 3 4 0 0 9 24 3 0 0 23 8 100 331 Peak Hour 1 0 9 9 35 1 0 7 12 2 0 56 106 8 0 0 63 24 331 0 Note: For all three-hour count summary, see next page. Interval Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg) EB WB NB SB Total EB WB NB SB Total East West North South Total Start 2:30 PM 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 2:45PM 0 0 3 1 4 0 0 0 0 0 0 0 0 0 0 3:00 PM 0 1 4 2 7 0 0 0 0 0 0 0 4 4 8 3:15PM 0 0 2 1 3 0 0 0 0 0 0 0 0 5 5 Peak Hour 1 0 1 9 4 14 1 0 0 0 0 0 0 1 4 9 14 Mark Skaggs: (425) 250-0777 mark.skaggs@idaxdata.com www.idaxdata.com Four -Hour Count Summaries S 314TH ST S 314TH ST 8TH AVE S 8TH AVE S Interval Start 1 Total Rolling One Hour Eastbound Westbound Northbound Southbound UT LT TH RT UT LT TH RT UT LT TH RT UT LT TH RT 2:00 PM 0 0 0 2 0 3 0 0 0 2 13 2 0 0 14 1 37 0 2:15PM 0 1 1 1 0 1 2 0 0 6 21 1 0 1 15 2 52 0 2:30 PM 0 0 1 0 0 1 3 0 0 8 27 3 0 0 10 1 54 0 2:45 PM 0 0 1 1 0 2 2 0 0 22 20 1 0 0 18 9 76 219 3:00 PM 0 3 3 18 0 1 3 2 0 17 35 1 0 0 12 6 101 283 3:15 PM 0 6 4 16 0 3 4 0 0 9 24 3 0 0 23 8 100 331 3:30 PM 0 0 0 2 0 0 1 0 0 4 21 4 0 0 20 0 52 329 3:45 PM 0 2 2 2 0 1 1 0 0 4 19 3 0 0 22 0 56 309 4:00 PM 0 1 0 3 0 0 0 1 0 1 26 3 0 0 13 0 48 256 4:15 PM 0 0 0 2 0 0 0 1 0 3 26 3 0 2 21 0 58 214 4:30 PM 0 0 0 2 0 0 0 0 0 5 16 1 0 1 23 1 49 211 4:45 PM 0 0 0 3 0 1 1 0 0 6 15 4 0 0 15 0 45 200 5:00 PM 0 0 2 2 0 4 1 1 0 7 24 2 0 0 19 3 65 217 5:15 PM 0 0 1 1 0 0 0 0 0 11 22 1 0 0 18 3 57 216 5:30 PM 0 2 0 0 0 1 0 1 0 2 21 3 0 0 20 1 51 218 5:45 PM 0 0 2 2 0 2 0 0 10 2 16 2 1 0 1 16 0 43 216 Count Total 0 15 17 57 0 20 18 6 0 109 346 37 0 5 279 351 944 0 Peak Hour 0 9 9 35 0 7 12 2 0 56 106 8 0 0 63 24 1 331 0 Note: Four-hour count summary volumes include heavy vehicles but exclude bicycles in overall count. Interval Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg) EB WB NB SB Total EB WB NB SIB Total East West North South Total Start 2:00 PM 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 2:15PM 0 1 0 0 1 0 0 0 0 0 1 0 0 0 1 2:30 PM 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 2:45 PM 0 0 3 1 4 0 0 0 0 0 0 0 0 0 0 3:00PM 0 1 4 2 1 0 0 0 0 6 0 0 4 4 a 3:15PM 0 0 2 1 3 0 0 0 0 0 0 0 0 5 5 3:30 PM 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 3:45 PM 1 0 1 1 3 0 0 0 0 0 0 0 0 0 0 4:00 PM 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 4:15PM 0 0 1 0 1 0 0 0 0 0 0 0 0 3 3 4:30 PM 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 4:45 PM 0 0 0 0 0 1 0 0 0 1 1 0 0 0 1 5:00 PM 0 0 0 0 0 0 0 0 0 0 2 0 0 1 3 5:15PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5:30 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5:45 PM 0 0 0 0 01 0 0 0 0 0 0 0 0 0 0 Count Total 1 2 13 5 21 1 0 1 0 2 5 1 4 13 23 Peak Hour 0 1 9 4 14 0' 0 0 0 0 0 1 4 9 14 Mark Skaggs: (425) 250-0777 mark.skaggs@idaxdata.com www.idaxdata.com 8TH AVE S ' S 315TH ST A Date: Tue, Jun 12, 2018 N Peak Hour Count Period: 2:00 PM to 6:00 PM Peak Hour: 2:45 PM to 3:45 PM lii T r JT G M O 4 � U S 315TH ST O 0 5 .-COMM �— 22 TEV: 329 �' 0 411 n 1 —6 010 64 0 PHF: 0.79 6 S 315TH ST 0 120 t O N M in r 0 FNB HV %• PHFEB 17.2% 0.62 WB 0.0% 0.31 to t r 5.8% 0.81 SB 1.7% 0.67 TOTAL 6.4% 0.79 Four -Hour Count Summaries Interval S 315TH ST S 315TH ST 8TH AVE S 8TH AVE S 15-min Rolling Eastbound Westbound Northbound Southbound Start Total One Hour UT LT TH RT UT LT TH RT UT LT TH RT UT LT TH RT 2:45 PM 0 1 0 2 0 0 0 0 0 2 39 2 0 0 21 0 67 0 3:00 PM 0 10 0 15 0 4 0 5 0 0 38 3 0 3 26 0 104 0 3:15 PM 0 8 0 18 0 1 0 0 0 0 28 0 0 0 43 0 98 0 3:30 PM 0 3 0 7 0 1 0 0 1 0 0 27 0 0 0 22 0 60 329 Peak Hour 1 0 22 0 42 1 0 6 0 5 1 0 2 132 5 0 3 112 0 329 0 Note: For all three-hour count summary, see next page. Interval Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg) EB WB NB SB Total EB WB NB SB Total East West North South Total Start 2:45 PM 0 0 4 1 5 0 0 0 0 0 0 0 0 9 9 3:00 PM 6 0 2 0 8 0 0 a 0 0 3 0 0 89 92 3:15 PM 5 0 1 1 7 0 0 0 0 0 3 1 0 22 26 3:30 PM 1 0 0 1 0 1 0 0 0 0 0 0 4 1 0 5 Peak Hour 1 11 0 8 2 21 0 0 0 0 0 6 5 1 120 132 Mark Skaggs: (425) 250-0777 mark.skaggs@idaxdata.com www.idaxdata.com Four -Hour Count Summaries S 315TH ST S 315TH ST 8TH AVE S 8TH AVE S Interval Start 15-min Total Rolling One Hour Eastbound Westbound Northbound Southbound UT LT TH RT UT LT TH RT UT LT TH RT UT LT TH RT 2:00 PM 0 1 0 4 0 0 0 0 0 0 18 1 0 0 19 0 43 0 2:15 PM 0 3 0 2 0 0 0 0 0 0 22 0 0 0 17 0 44 0 2:30 PM 0 1 1 3 0 0 0 0 0 0 37 1 0 0 12 0 55 0 2:45 PM 0 1 0 2 0 0 0 0 0 2 39 2 0 0 21 0 67 209 3:00 PM 0 10 0 15 0 4 0 5 0 0 36 3 0 3 26 0 104 270 3:15 PM 0 8 0 18 0 1 0 0 0 0 28 0 0 0 43 0 98 324 3:30 PM 0 3 0 7 0 1 0 0 0 0 27 0 0 0 22 0 60 329 3:45 PM 0 1 0 4 0 0 0 1 0 1 26 0 0 1 24 0 58 320 4:00 PM 0 2 0 5 0 0 0 0 0 0 27 0 0 0 15 0 49 265 4:15 PM 0 1 0 1 0 0 0 0 0 0 31 0 0 0 24 0 57 224 4:30 PM 0 2 0 3 0 0 0 0 0 0 22 0 0 0 26 0 53 217 4:45 PM 0 2 0 0 0 1 0 0 0 0 25 0 0 1 19 0 48 207 5:00 PM 0 0 0 1 0 0 0 0 0 0 30 1 0 1 20 0 53 211 5:15 PM 0 4 0 4 0 1 0 0 0 0 34 0 0 0 23 0 66 220 5:30 PM 0 1 0 2 0 1 0 0 0 0 22 1 0 0 18 0 45 212 5:45 PM 0 0 0 2 0 0 0 1 0 0 22 0 0 0 21 0 46 210 Count Total 0 40 1 73 0 9 0 7 0 3 448 9 0 6 350 0 946 0 Peak Hour 0 22 0 42 0 6 0 5 0 2 132 5 0 3 112 0 329 0 Note: Four-hour count summary volumes include heavy vehicles but exclude bicycles in overall count. Interval Hem Vehicle Totals Bicycles Pedestrians (Crossing Leg) Start EB WB NB SIB Total EB WB NB SB Total East West North South Total 2:00PM 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 2:15PM 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 2:30 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2:45 PM 0 0 4 1 5 0 0 0 0 0 0 0 0 9 9 3.00 PM 6 0 2 0 8 0 0 0 0 0 3 0 0 89 92 3:15 PM 5 0 1 1 7 0 0 0 0 0 3 1 0 22 26 3:30 PM 0 0 1 0 1 0 0 0 0 0 0 4 1 0 5 3:45 PM 0 0 0 1 1 0 0 0 0 0 0 0 0 2 2 4:00 PM 0 0 2 0 2 0 0 0 0 0 0 1 0 0 1 4:15PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4:30 PM 0 0 1 0 1 0 1 0 0 1 0 0 0 0 0 4:45PM 0 0 0 0 0 0 0 0 1 1 1 1 0 0 2 5:00 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 7 7 5:15PM 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 5:30 PM 0 0 0 0 0 0 0 0 0 0 3 0 0 6 9 5:45 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 4 4 Count Total 11 0 12 3 26 0 1 0 1 2 11 7 1 140 159 Peak Hour 11 0 8 2 21 0 0 0 0 0 6 5 1 120 132 Mark Skaggs: (425) 250-0777 mark.skaggs@idaxdata.com N 07 � m CO M @ A a N cr a N d O N O 3 -4 y y per_ f0 OD V W CpO/l A pW N s p s_ p 10 W V 0 0 tA 3 W pN m O O O 8 O 8 8 O DD Oyy O yOy DOD DgD g O O O DOD 3 3 m GI 0 V O N V m O fs 10 A N 01 N f0 co �D � � f7� ly Oo m N w O W s V W m m s O N N N N V GI W A N s O A W� O s s V V s V OAo N O A O O A � t0 O W W O O O O W W O N W A V W 10 W W N W O 5i CNfI A CV7i ? 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A A � W i O Of i N1 Al N W i f0 dJ V CO A7 Al f0 N A 3 • T/9AFFIC DATA GATHERING TURNING MOVEMENTS DIAGRAM 4:00 PM - 6:00 PM PEAK HOUR: 4:30 PM TO 5:30 PM Peds = 0 21 17 Cl) a� c a� Bicycles 0 0 U-Tum Q w t d 15 6 9 0 1 0 HV PHF SB 0.0% 0.88 NB 0.0% 0.56 WB 0.0% 0.50 INTRS. 0.0% 0.77 HV = Heavy Vehicles PHF = Peak Hour Factor COUNTED BY: TDG REDUCTION DATE: Wed. 10/31/18 8 1 U-Tum 0 0 Bicycles a� c 16 9 Q Peds = 2 CD 10 E 7 D INTERSECTION PEAK HOUR VOLUME IN 40 7 OUT 40 6th Avenue S @ S 314th Street Federal Way, WA DATE OF COUNT: Wed. 10/31/18 TIME OF COUNT: 4:00 PM - 6:00 PM TEN W 25 vehicles in PM peak hour Based on PHF on S 314th of approx. 18%, ADT is 135 vehicles. 0 11��a ■1��1■11■�1 Nil ,71 ATTACHMENT B Intersection LOS Summary Sheets TENW HCM Unsignalized Intersection Capacity Analysis 1: S 315th St/North Dr & S 314th St 10/23/2018 —► �t 4,1 ~ /W Movement EBT EBR -�VVgt- V'VBT NIL N13R Lane Configurations 1� 4 Traffic Volume (veh/h) 37 29 89 38 0 0 Future Volume (Veh/h) 37 29 89 38 0 0 Sign Control Free Free Stop Grade 0% 0% 0% Peak Hour Factor 0.67 0.67 0.67 6.67 '0.67 0.61 Hourly flow rate (vph) 55 43 133 57 0 0 Pedestrians 88 27 88 Lane Width (ft) 12.0 12.0 0.0 Walking Speed (ft/s) 4.0 4.0 4.0 Percent Blockage 7 2 0 Right turn flare (veh) Median type None None Median storage veh) Upstream signal (ft) pX, platoon unblocked vC, conflicting volume 186 576 192 vC1, stage 1 conf vol vC2, stage 2 conf vol vCu, unblocked vol 186 576 192 tC, single (s) 4.2 6.4 6.2 tC, 2 stage (s) tF (s) 2.3 3.5 3.3 p0 queue free % 90 100 100 cM capacity (veh/h) 1365 404 836 Direction, Lane # EB 1 WB 1 Volume Total 98 190 Volume Left 0 133 Volume Right 43 0 cSH 1700 1365 Volume to Capacity 0.06 0.10 Queue Length 95th (ft) 0 8 Control Delay (s) 0.0 5.8 Lane LOS A Approach Delay (s) 0.0 5.8 Approach LOS Intersection Summary _ Average Delay 3.8 Intersection Capacity Utilization 29.5% ICU Level of Service A Analysis Period (min) 15 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2018 Existing AM LOS Synchro 10 Report TENW Page 2 HCM Unsignalized Intersection Capacity Analysis 2: 8th Ave S & S 314th St * /10 110I2312018 Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations 4 + + Traffic Volume (vehlh) 13 4 35 7 18 2 97 93 7 0 31 23 Future Volume (Vehlh) 13 4 35 7 18 2 97 93 7 0 31 23 Sign Control Stop Stop Free Free Grade 0% 0% 0% 0% Peak Hour Factor 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 Hourly flow rate (vph) 16 5 44 9 23 3 123 118 9 0 39 29 Pedestrians 7 7 5 7 Lane Width (ft) 12.0 12.0 12.0 12.0 Walking Speed (ft/s) 4.0 4.0 4.0 4.0 Percent Blockage 1 1 0 1 Right turn flare (veh) Median type None None Median storage veh) Upstream signal (ft) pX, platoon unblocked vC, conflicting volume 450 440 66 480 450 136 75 134 vC1, stage 1 conf vol vC2, stage 2 conf vol vCu, unblocked vol 450 440 66 480 450 136 75 134 tC, single (s) 7.1 6.5 6.2 7.1 6.5 6.2 4.1 4.1 tC, 2 stage (s) tF (s) 3.5 4.0 3.3 3.5 4.0 3.3 2.2 2.2 p0 queue free % 97 99 96 98 95 100 92 100 cM capacity (vehlh) 460 466 994 429 455 896 1503 1442 Direction, Lane # EB 1 WS 1 NS 1 SB 1 Volume Total 65 35 250 68 Volume Left 16 9 123 0 Volume Right 44 3 9 29 cSH 724 467 1503 1442 Volume to Capacity 0.09 0.07 0.08 0.00 Queue Length 95th (ft) 7 6 7 0 Control Delay (s) 10.5 13.3 4.1 0.0 Lane LOS B B A Approach Delay (s) 10.5 13.3 4.1 0.0 Approach LOS B B Intersection Surnma Average Delay 5.2 Intersection Capacity Utilization 29.8% ICU Level of Service A Analysis Period (min) 15 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2018 Existing AM LOS Synchro 10 Report TENW Page 4 HCM Unsignalized Intersection Capacity Analysis 3: 8th Ave S & S 315th St/South Dr/S 315 St 10/23/2018 _J* 4% t /111� Movement EBL EST M WBL WBT WBR AL 6W N6R SBL SBT SBR Lane Configurations + + 4 Traffic Volume (veh1h) 35 1 58 7 0 8 3 155 12 3 68 1 Future Volume (Veh/h) 35 1 58 7 0 8 3 155 12 3 68 1 Sign Control Stop Stop Free Free Grade 0% 0% 0% 0% Peak Hour Factor 0.78 0.78 0.78 0.78 0.78 0.78 0.78 0.78 0.78 0.78 0.78 0.78 Hourly flow rate (vph) 45 1 74 9 0 10 4 199 15 4 87 1 Pedestrians 82 102 102 24 Lane Width (ft) 12.0 12.0 12.0 12.0 Walking Speed (ft/s) 4.0 4.0 4.0 4.0 Percent Blockage 7 9 9 2 Right turn flare (veh) Median type None None Median storage veh) Upstream signal (ft) pX, platoon unblocked vC, conflicting volume 426 502 272 588 494 332 170 316 vC1, stage 1 conf vol vC2, stage 2 conf vol vCu, unblocked vol 426 502 272 588 494 332 170 316 tC, single (s) 7.2 6.6 6.3 7.1 6.5 6.2 4.1 4.1 tC, 2 stage (s) tF (s) 3.6 4.1 3.4 3.5 4.0 3.3 2.2 2.2 p0 queue free % 89 100 88 97 100 98 100 100 cM capacity (veh/h) 416 390 638 276 406 640 1294 1144 Direction, Lane hE EB 1 WB 1 NB 1 SB 1 Volume Total 120 19 218 92 Volume Left 45 9 4 4 Volume Right 74 10 15 1 cSH 529 394 1294 1144 Volume to Capacity 0.23 0.05 0.00 0.00 Queue Length 95th (ft) 22 4 0 0 Control Delay (s) 13.8 14.6 0.2 0.4 Lane LOS B B A A Approach Delay (s) 13.8 14.6 0.2 0.4 Approach LOS B B Intrsedion Summary Average Delay 4.5 Intersection Capacity Utilization 33.0% ICU Level of Service A Analysis Period (min) 15 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2018 Existing AM LOS Synchro 10 Report TENW Page 7 HCM Unsignalized Intersection Capacity Analysis 1: S 315th St/North Dr & S 314th St 10/23/2018 __W ft-t4,,Pi-- 4% /01 Movement EBT EBR WBL WBT NBL NBR Lane Configurations 1F 4 Traffic Volume (veh/h) 38 8 36 44 0 0 Future Volume (Veh/h) 38 8 36 44 0 0 Sign Control Free Free Stop Grade 0% 0% 0% Peak Hour Factor 0.73 0.73 0.73 0.73 0.73 0.73 Hourly flow rate (vph) 52 11 49 60 0 0 Pedestrians 112 32 112 Lane Width (ft) 12.0 12.0 0.0 Walking Speed (ft/s) 4.0 4.0 4.0 Percent Blockage 9 3 0 Right turn flare (veh) Median type None None Median storage veh) Upstream signal (ft) pX, platoon unblocked vC, conflicting volume 175 440 202 vC1, stage 1 conf vol vC2, stage 2 conf vol vCu, unblocked vol 175 440 202 tC, single (s) 4.2 6.4 6.2 tC, 2 stage (s) tF (s) 2.3 3.5 3.3 p0 queue free % 96 100 100 cM capacity (veh/h) 1338 505 822 DirectiDn, Lane # EB 1 WB 1 Volume Total 63 109 Volume Left 0 49 Volume Right 11 0 cSH 1700 1338 Volume to Capacity 0.04 0.04 Queue Length 95th (ft) 0 3 Control Delay (s) 0.0 3.7 Lane LOS A Approach Delay (s) 0.0 3.7 Approach LOS Intersection Summary Average Delay 2.3 Intersection Capacity Utilization 29.7% ICU Level of Service A Analysis Period (min) 15 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2018 Existing PM LOS Synchro 10 Report TENW Page 2 HCM Unsignalized Intersection Capacity Analysis 2: 8th Ave S & S 314th St 10/23/2018 Movement EBi_ EBT EBR WBL WBT WBR NBi NIBT NBR SBL SBT SBR Lane Configurations + Traffic Volume (veh/h) 9 9 35 7 12 2 56 106 8 0 63 24 Future Volume (Veh/h) 9 9 35 7 12 2 56 106 8 0 63 24 Sign Control Stop Stop Free Free Grade 0% 0% 0% 0% Peak Hour Factor 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.82 Hourly flow rate (vph) 11 11 43 9 15 2 68 129 10 0 77 29 Pedestrians 10 9 10 5 Lane Width (ft) 12.0 12.0 12.0 12.0 Walking Speed (ft/s) 4.0 4.0 4.0 4.0 Percent Blockage 1 1 1 0 Right turn flare (veh) Median type None None Median storage veh) Upstream signal (ft) pX, platoon unblocked vC, conflicting volume 386 386 112 429 395 148 116 148 vC1, stage 1 conf vol vC2, stage 2 conf vol vCu, unblocked vol 386 386 112 429 395 148 116 148 tC, single (s) 7.1 6.5 6.2 7.1 6.5 6.2 4.1 4.1 tC, 2 stage (s) tF (s) 3.5 4.0 3.3 3.5 4.0 3.3 2.2 2.2 p0 queue free % 98 98 95 98 97 100 95 100 cM capacity (veh/h) 529 517 931 467 504 881 1442 1405 Direcft, lane# EB 1 WB 1 NB 1 SB 'I Volume Total 65 26 207 106 Volume Left 11 9 68 0 Volume Right 43 2 10 29 cSH 737 507 1442 1405 Volume to Capacity 0.09 0.05 0.05 0.00 Queue Length 95th (ft) 7 4 4 0 Control Delay (s) 10.4 12.5 2.8 0.0 Lane LOS B B A Approach Delay (s) 10.4 12.5 2.8 0.0 Approach LOS B B Intw-Ota ry Averaep Delay 3.9 Intersection Capacity Utilization 29.3% ICU Level of Service A Analysis Period (min) 15 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2018 Existing PM LOS Synchro 10 Report TENW Page 4 HCM Unsignalized Intersection Capacity Analysis 3: 8th Ave S & S 315th St/South Dr/S 315 St 10/23/2018 t jO 1 -' Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations Traffic Volume (veh/h) 22 0 42 6 0 5 2 132 5 3 112 0 Future Volume (Veh/h) 22 0 42 6 0 5 2 132 5 3 112 0 Sign Control Stop Stop Free Free Grade 0% 0% 0% 0% Peak Hour Factor 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 Hourly flow rate (vph) 28 0 53 8 0 6 3 167 6 4 142 0 Pedestrians 125 126 126 7 Lane Width (ft) 12.0 12.0 12.0 12.0 Walking Speed (ft/s) 4.0 4.0 4.0 4.0 Percent Blockage 10 10 10 1 Right turn flare (veh) Median type None None Median storage veh) Upstream signal (ft) pX, platoon unblocked vC, conflicting volume 464 580 393 631 577 303 267 299 vC1, stage 1 conf vol vC2, stage 2 conf vol vCu, unblocked vol 464 580 393 631 577 303 267 299 tC, single (s) 7.3 6.7 6.4 7.1 6.5 6.2 4.2 4.1 tC, 2 stage (s) tF (s) 3.7 4.2 3.5 3.5 4.0 3.3 2.3 2.2 p0 queue free % 92 100 89 97 100 99 100 100 cM capacity (veh/h) 360 323 501 240 343 660 1141 1130 Direction, Lane #, EB 1 WB 1 NB 1 SB 1 Volume Total 81 14 176 146 Volume Left 28 8 3 4 - - Volume Right 53 6 6 0 cSH 441 329 1141 1130 Volume to Capacity 0.18 0.04 0.00 0.00 Queue Length 95th (ft) 17 3 0 0 _ Control Delay (s) 15.0 16.4 0.2 0.3 Lane LOS B C. A A - Approach Delay (s) 15.0 16A 0.2 0.3 Approach LOS B C. - Intersection SurnmM _ Average Delay 3.6 Intersection Capacity Utilization 33.2% ICU Level of Service A Analysis Period (min) 15 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2018 Existing PM LOS Synchro 10 Report TENW Page 7 HCM Unsignalized Intersection Capacity Analysis 1: East Driveway & S 314th St 10/23/2018 Movement EST EBR WBL WBT NBL NBR Lane Configurations 1� 4 Traffic Volume (veh/h) 39 31 94 40 0 0 Future Volume (Veh/h) 39 31 94 40 0 0 Sign Control Free Free Stop Grade 0% 0% 0% Peak Hour Factor 0.67 0.67 0.67 0.67 0.67 0.67 Hourly flow rate (vph) 58 46 140 60 0 0 Pedestrians 88 27 88 Lane Width (ft) 12.0 12.0 0.0 Walking Speed (ft/s) 4.0 4.0 4.0 Percent Blockage 7 2 0 Right turn flare (veh) Median type None None Median storage veh) Upstream signal (ft) pX, platoon unblocked vC, conflicting volume 192 597 196 vC1, stage 1 conf vol vC2, stage 2 conf vol vCu, unblocked vol 192 597 196 tC, single (s) 4.2 6.4 6.2 tC, 2 stage (s) tF (s) 2.3 3.5 3.3 p0 queue free % 90 100 100 cM capacity (veh/h) 1358 390 831 Direction, Lane # EB 1 WB 1 Volume Total 104 200 Volume Left 0 140 Volume Right 46 0 cSH 1700 1358 Volume to Capacity 0.06 0.10 Queue Length 95th (ft) 0 9 Control Delay (s) 0.0 5.8 Lane LOS A Approach Delay (s) 0.0 5.8 Approach LOS Intersection Summary Average Delay 3.8 Intersection Capacity Utilization 29.9% ICU Level of Service A Analysis Period (min) 15 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Baseline AM LOS Synchro 10 Report TENW Page 2 HCM 2010 TWSC 2: 8th Ave S & S 314th St 10/23/2018 )n(erseaon Int Delay, s/veh 5.1 Movement EBL. EBT EBR WBL W. BT WBR NBL NBT NOR SBL SBT SBR Lane Configurations 4-� +4 4 14) Traffic Vol, veh/h 14 4 37 7 19 2 103 99 7 0 33 24 Future Vol, veh/h 14 4 37 7 19 2 103 99 7 0 33 24 Conflicting Peds, #1hr 7 0 5 5 0 7 5 0 5 7 0 7 Slgn Control Stop Stop Stop Stop Stop Stop Free Free Free Free Free Free RT Channelized - - None - - None - - None - None Storage Length - - - - - - - - - Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 - Grade, % - 0 - 0 - - 0 - - 0 - Peak Hour Factor 79 79 79 79 79 79 79 79 79 79 79 79 Heavy Vehicles, % 0 0 0 4 4 4 4 4 4 2 2 2 Mvmt Flow 18 5 47 9 24 3 130 125 9 0 42 30 Major/Minor Minor2 Minorl Major1 Ma'or2 Conflicting Flow All 474 465 69 485 476 144 79 0 0 141 0 0 Stage 1 64 64 - 397 397 - - - - - - - Stage 2 410 401 - 88 79 - - - - - - - Criticai Hdwy 7.1 6.5 6.2 7.14 6.54 6.24 4.14 - - 4.12 got- - Critical Hdwy Stg 1 6.1 5.5 - 6.14 5.54 - - - - - _ - Critical Hdwy Stg 2 6.1 5.5 - 6.14 5.54 - - - - - - - Follow-up Hdwy 3.5 4 3.3 3.536 4.036 3.336 2.236 - - 2.218 - - Pot Cap-1 Maneuver 504 498 1000 489 485 898 1507 - - 1442 ' Stage 1 952 846 - 625 600 - - - - - Stage 2 623 604 - 915 825 - - - Platoon blocked, % - - Mov Cap-1 Maneuver 442 446 990 424 434 888 1498 - - 1434. Mov Cap-2 Maneuver 442 446 - 424 434 - - - - - - Stage 1 858 841 - 563 541 - - - - - - Stage 2 535 544 - 863 820 - - - - - - EB WB NB 5WE 1101 HCM Control Delay, s 10.7 13.7 3.8 HCM LOS B B Minor Lane/Maior Mvmt Capacity (veh/h) HCM Lane V/C Ratio HCM Control Delay (s) HCM Lane LOS HCM 95th %tile Q(veh' NBL NBT NBR EBLniWBLn1 SBL SBT SBR 1498 - - 705 448 1434 0.087 - 0.099 0.079 - 7.6 0 - 10.7 13.7 0 A 0 Federal Way SD -Mirror Lake Elementary School 5:00 pm 0611912018 2020 Baseline AM LOS Synchro 10 Report TENW Page 5 HCM 2010 TWSC 3: 8th Ave S & S 315th St/South Dr/S 315 St 10/23/2018 Intersection Int Delay, slveh Movement 4.3 EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT 'SBR Lane Configurations Traffic Vol, veh/h 37 1 62 7 0 8 3 164 13 3 72 1 Future Vol, veh/h 37 1 62 7 0 8 3 164 13 3 72 1 Conflicting Peds, #/hr 4 0 82 102 0 24 82 0 102 24 0 4 Sign Control Stop Stop Stop Stop Stop Stop Free Free Free Free Free Free RT Channelized - - None - - None - - None - - None Storage Length - - - - - Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 - Grade, % - 0 - - 0 - - 0 - - 0 - Peak Hour Factor 78 78 78 78 78 78 78 78 78 78 78 78 Heavy Vehicles, % 10 10 10 0 0 0 5 5 5 1 1 1 Mvmt Flow 47 1 79 9 0 10 4 210 17 4 92 1 Major/Minor Minor2 Minorl Majorl Major2 Conflicting Flow All 439 520 277 572 512 345 175 0 0 329 0 0 Stage 183 183 - 329 329 - - - - - - - Stage 2 256 337 - 243 183 - - - - - - Critical Hdwy 7.2 6.6 6.3 7.1 6.5 6.2 4.15 - 4.11 - - Critical Hdwy Stg 1 6.2 5.6 - 6.1 5.5 - - - - - Cribcal Hdwy Stg 2 6.2 5.6 - 6.1 5.5 - - - - - - Follow-up Hdwy 3.59 4.09 3.39 3.5 4 3.3 2.245 - - 2.209 Pot Cap-1 Maneuver 515 449 743 434 468 702 1383 - - 1236 - Stage 1 800 733 - 688 650 - - - - - - Stage 2 731 627 - 765 752 - - - - - - - Platoon blocked, % - - - - Mov Cap-1 Maneuver 460 380 633 315 396 629 1288 - - 1131 - Mov Cap-2 Maneuver 460 380 - 315 396 - - - - - - Stage 1 742 680 - 627 592 - - - - - Stage 2 702 571 - 608 698 - - - - - - Approach EB VVB SIB SB HCM Control Delay, s 13.5 13.8 0.1 0.3 HCM LOS B B iuiinur Laj)06aiur NivirEt F�SL 1413T S°L SBT SBR Capacity (veh/h) 1288 - - 552 429 1131 - - HCM Lane V/C Ratio 0.003 - 0.232 0.045 0.003 - - HCM Control Delay (s) 7.8 0 - 13.5 13.8 8.2 0 - HCM Lane LOS A A B B A A - HCM 95th %tile Q(veh) 6 - - 0.9 0.1 0 - - Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Baseline AM LOS Synchro 10 Report TENW Page 8 HCM 2010 TWSC 4: S 314th St & 7th Ave S 10/23/2018 Intersection Int Delay, s/veh Movement 0.6 EBL EBT WBT WBR SBL SBR Lane Configurations 4' 1� Y Traffic Vol, veh/h 0 63 36 4 7 0 Future Vol, veh/h 0 63 36 4 7 0 Conflicting Peds, #/hr 0 0 0 0 0 0 Sign Control Free Free Free Free Stop Stop RT Channelized - None - None - None Storage Length - - - - 0 - Veh in Median Storage, # - 0 0 - 0 - Grade, % - 0 0 - 0 - Peak Hour Factor 92 92 92 92 92 92 Heavy Vehicles, % 2 2 2 2 2 2 Mvmt Flow 0 68 39 4 8 0 Major/Minor Majorl Major2 Minor2 -1 Conflicting Flow All 43 0 - 0 109 41 Stage 1 - - - - 41 - Stage 2 - - - 68 - Critical Hdwy 4.12 - - 6.42 6.22 Critical Hdwy Stg 1 - - - 5.42 - Critical Hdwy Stg 2 - - - 5.42 - Follow-up Hdwy 2.218 - - 3.518 3.318 Pot Cap-1 Maneuver 1566 - - 888 1030 Stage 1 - - - 981 - Stage 2 - - - 955 - Platoon blocked, % - Mov Cap-1 Maneuver 1566 - - 888 1030 Mov Cap-2 Maneuver - - - 888 - Stage 1 - - - 981 - Stage 2 - _ - 955 - Approach EB WB SB HCM Control Delay, s 0 0 9.1 HCM LOS A Minor Lane/Major Mvmt EBL EBT WBT WBR SBLn1 Capacity (vehlh) 1566 - - - 888 HCM Lane V/C Ratio - - - 0.009 HCM Control Delay (s) 0 - - - 9.1 HCM Lane LOS A - - A HCM 95th %tile Q(veh) 0 - - 0 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Baseline AM LOS Synchro 10 Report TENW Page 11 HCM Unsignalized Intersection Capacity Analysis 1: S 315th St/North Dr & S 314th St 10/23/2018 __W ftV 4-- 4\ Movement EBT EBR WBL WBT NBL NBR Lane Configurations 1� Traffic Volume (veh/h) 40 8 38 47 0 0 Future Volume (Veh/h) 40 8 38 47 0 0 Sign Control Free Free Stop Grade 0% 0% 0% Peak Hour Factor 0.73 0.73 0.73 0.73 0.73 0.73 Hourly flow rate (vph) 55 11 52 64 0 0 Pedestrians 112 32 112 Lane Width (ft) 12.0 12.0 0.0 Walking Speed (ft/s) 4.0 4.0 4.0 Percent Blockage 9 3 0 Right turn flare (veh) Median type None None Median storage veh) Upstream signal (ft) pX, platoon unblocked vC, conflicting volume 178 452 204 vC1, stage 1 conf vol vC2, stage 2 conf vol vCu, unblocked vol 178 452 204 tC, single (s) 4.2 6.4 6.2 tC, 2 stage (s) tF (s) 2.3 3.5 3.3 p0 queue free % 96 100 100 cM capacity (veh/h) 1334 496 819 Direction, Lane # EB 1 WB 1 Volume Total 66 116 Volume Left 0 52 Volume Right 11 0 cSH 1700 1334 Volume to Capacity 0.04 0.04 Queue Length 95th (ft) 0 3 Control Delay (s) 0.0 3.7 Lane LOS A Approach Delay (s) 0.0 3.7 Approach LOS Intersection Summary _ Average Delay 2.3 Intersection Capacity Utilization 29.7% ICU Level of Service A Analysis Period (min) 15 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Baseline PM LOS Synchro 10 Report TENW Page 2 HCM 2010 TWSC 2: 8th Ave S & S 314th St 10/23/2018 Intersection Int Delay, s/veh Movement 3.8 EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations 4� Traffic Vol, veh/h 10 10 37 7 13 2 59 112 8 0 67 25 Future Vol, veh/h 10 10 37 7 13 2 59 112 8 0 67 25 Conflicting Peds, #/hr 5 0 10 9 0 4 10 0 9 4 0 10 Sign Control Stop Stop Stop Stop Stop Stop Free Free Free Free Free Free RT Channelized - - None - - None - - None - - None Storage Length - - - - - - - - - - Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 - Grade, % - 0 - - 0 - - 0 - 0 - Peak Hour Factor 82 82 82 82 82 82 82 82 82 82 82 82 Heavy Vehicles, % 0 0 0 5 5 5 5 5 5 5 5 5 Mvmt Flow 12 12 45 9 16 2 72 137 10 6 82 30 Ma orlMinor Minor2 Minorl Ma orl Ma or2 Conflicting Flow All 407 407 117 431 417 156 122 0 0 156 0 0 Stage 1 107 107 - 295 295 - - - - - - - Stage 2 300 300 - 136 122 - - - - - Critical Hdwy 7.1 6.5 6.2 7.15 6.55 6.25 4.15 - - 4.15 - Critical Hdwy Stg 1 6.1 5.5 - 6.15 5.55 - - - - - - Critical Hdwy Stg 2 6.1 5.5 - 6.15 5.55 - - - - - - Follow-up Hdwy 3.5 4 3.3 3.545 4.045 3.345 2.245 - 2.245 Pot Cap-1 Maneuver 558 537 941 529 522 882 1447 - 1406 - Stage 1 903 811 - 707 664 - - - - - - Stage 2 713 669 - 860 789 - - - - Platoon blocked, % - - Mov Cap-1 Maneuver 513 500 925 466 486 872 1435 - - 1395 - Mov Cap-2 Maneuver 513 500 - 466 486 - - - - - - Stage 1 846 805 - 663 623 - - - - - Stage 2 652 628 - 799 783 - - - - Approach EB WB NB SB HCM Control Delay, s 10.8 12.6 2.5 0 HCM LOS B B Minor Lane/Malor Mvmt NBL NBT NBR EBLn1WBLnl SBL SBT SBR Capacity (veh/h) 1435 - - 717 499 1395 - - HCM Lane V/C Ratio 0.05 - - 0.097 0.054 - - HCM Control Delay (s) 7.6 0 - 10.6 12.6 0 - - HCM Lane LOS A A - B B A - HCM 95th %tile Q(veh) 0.2 - - 0.3 0.2 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Baseline PM LOS Synchro 10 Report TENW Page 5 HCM 2010 TWSC 3: 8th Ave S & S 315th St/South Dr/S 315 St 10/23/2018 Intersection Int Delay, s/veh Movement 3.4 EBL EBT ESR W8L WBT WBR NBi_ NBT NBR SBL S8T , Lane Configurations 4+ 4+ Traffic Vol, veh/h 23 0 45 6 0 5 2 140 5 3 119 0 Future Vol, veh/h 23 0 45 6 0 5 2 140 5 3 119 0 Conflicting Peds, #/hr 6 0 125 126 0 7 125 0 126 7 0 6 Sign Control Stop Stop Stop Stop Stop Stop Free Free Free Free Free Free RT Channelized - - None - - None - - None - - None Storage Length - - - - - - - - - - - - Veh h Median Storage, # - 0 - - 0 - - 0 - - 0 - Grade, % - 0 - - 0 - - 0 - - 0 - Peak Hour Factor 79 79 79 79 79 79 79 79 79 79 79 79 Heavy Vehicles, % 17 17 17 0 0 0 6 6 6 2 2 2 Mvmt Flow 29 0 57 8 0 6 3 177 6 4 151 0 Major/Minor Minor2 Minorl Malorl Major: Conflicting Flow All 480 599 402 626 596 313 276 0 _ 0 309 0 0 Stage 284 284 - 312 312 - - - - - - - Stage 2 196 315 - 314 284 - - - - - Critical Hdwy 7.27 6.67 6.37 7.1 6.5 6.2 4.16 - 4.12 - - Critical Hdwy 5tg 1 6.27 5.67 - 6.1 5.5 - - - - - - Critical Hdwy Stg 2 6.27 5.67 - 6.1 5.5 - - - - - - - Follow-up Hdwy 3.653 4.153 3.453 3.5 4 3.3 2.254 - 2.218 - Pot Cap-1 Maneuver 472 396 617 400 420 732 1264 - 1252 - - Stage 1 692 650 - 703 661 - - - - - - Stage 2 772 630 - 701 680 - - - - Platoon blocked, % - - Mov Cap-1 Maneuver 414 315 495 282 334 651 1132 1121 - Mov Cap-2 Maneuver 414 315 - 282 334 - - - - Stage 1 618 580 - 627 590 - - - - - - Stage 2 758 562 - 553 607 - - - - - Approach_ ES WB NB S3 HCM Control Delay, s 14.5 14.8 0.1 0.2 HCM LOS B B Minor Laneiiviaior Mvmt NBL NB i NBrrR EOLII Iti", EIn i rK SBT 531: Capacity (veh/). 1132 - - 464 380 1121 - HCM Lane V/C Ratio 0.002 - - 0.186 0.037 0.003 - - HCM Control Delay (s) 8.2 0 - 14.5 14.8 8.2 0 - HCM Lane LOS A A - B B A A - HCM 95th %tile Q(veh) 0 - - 0.7 0.1 0 - - Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Baseline PM LOS Synchro 10 Report TENW Page 8 HCM 2010 TWSC 4: S 314th St $ 7th Ave S 10/23/2018 Intersection Int Delay, s/veh Movement 0.5 EBL EBT WBT WBR SBL SBR Lane Configurations (' 1 Y Traffic Vol, veh/h 0 44 42 5 5 0 Future Vol, veh/h 0 44 42 5 5 0 Conflicting Peds, #/hr 0 0 0 0 0 0 Sign Control Free Free Free Free Stop Stop RT Channelized - None - None - None Storage Length - - - - 0 - Veh in Median Storage, # - 0 0 - 0 - Grade, % - 0 0 - 0 - Peak Hour Factor 92 92 92 92 92 92 Heavy Vehicles, % 2 2 2 2 2 2 Mvmt Flow 0 48 46 5 5 0 Major/Minor Maori Ma'or2 Minor2 Conflicting Flow All 51 0 - 0 97 49 Stage 1 - - - - 49 - Stage 2 - - - 48 - Critical Hdwy 4.12 _ - - 6.42 6.22 Critical Hdwy Stg 1 - - - 5.42 - Critical Hdwy Stg 2 - - - 5.42 - Follow-up Hdwy 2.218 - - 3.518 3.318 Pot Cap-1 Maneuver 1555 - - 902 1020 Stage 1 - - - 973 - Stage 2 - - - - 974 - Platoon blocked, % - - Mov Cap-1 Maneuver 1555 - - - 902 1020 Mov Cap-2 Maneuver - - - - 902 - Stage 1 - - - 973 - Stage 2 - - - 974 - Approach ES WB SS HCM Control Delay, s 0 0 9 HCM LOS A Minor Lane/Major Mvmt EBL EBT WBT WBR SBLn1 Capacity (veh/h) 1555 - - - 902 HCM Lane V/C Ratio - - - - 0.006 HCM Control Delay (s) 0 - - - 9 HCM Lane LOS A - - A HCM 95th %tile Q(veh) 0 - 0 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Baseline PM LOS Synchro 10 Report TENW Page 11 HCM 2010 TWSC 1: East Driveway & S 314th St 10/23/2018 Intersection Int Delay, s/veh 3.9 Movement EBT EBR WBL WBT NBL NBR Lane Configurations '+ 4 Y Traffic Vol, veh/h 62 31 116 67 0 18 Future Vol, veh/h 62 31 116 67 0 18 Conflicting Peds, #/hr 0 88 27 0 88 27 Sign Control Free Free Free Free Stop Stop RT Channelized - None - !Vane - None Storage Length - - - 0 - Veh in Median Storage, # 0 - - 0 0 - Grade, % 0 - - 0 0 - Peak Hour Factor 67 67 67 67 67 67 Heavy Vehicles, % 2 2 6 6 0 0 Mvmt Flow 93 46 173 100 0 27 MajorlKnor Majorl MajoO Knorl Conflicting Flow All 0 0 227 0 738 231 Stage 1 - - - - 204 - Stage 2 - - - - 534 - Critical Hdwy - - 4.16 - 6.4 6.2 Critical Hdwy Stg 1 - - - - 5.4 - Critical Hdwy Stg 2 - - - - 5.4 - Follow-up Hdwy - - 2.254 - 3.5 3.3 Pot Cap-1 Maneuver - - 1318 - 388 813 Stage 1 - - - - 835 - Stage 2 - - - - 592 - Platoon blocked, % - - - Mov Cap-1 Maneuver - - 1221 - 283 736 Mov Cap-2 Maneuver - - - - 283 - Stage 1 - - - - 658 - Stage 2 - - - - 549 - Approach EB WB NB HCM Control Delay, s 0 5.3 10.1 _ HCM LOS B Minor Lane/Maier Mvmt NRl.n1 FRT FRR VVRL WBT Capacity (veh/d) 736 - - 1221 - HCM Lane V/C Ratio 0.037 - - 0.142 - HCM Control Delay (s) 10.1 - - 8.4 0 HCM Lane LOS B - - A A HCM 95th %tile Q(veh) 0.1 - - 0.5 - Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Project AM LOS Synchro 10 Report TENW Page 2 HCM 2010 TWSC 2: 8th Ave S & S 314th St 10/23/2018 Intersection Int Delay, s/veh 6.2 Movement EBL 96T EI3R WBL WST WBR NBL NBT NBR SBL SHT SBR Lane Configurations Traffic Vol, veh/h 23 9 64 7 24 2 135 99 7 0 33 35 Future Vol, veh/h 23 9 64 7 24 2 135 99 7 0 33 35 Conflicting Peds, #/hr 7 0 5 5 0 7 5 0 5 7 0 7 Sign Control Stop Stop Stop Stop Stop Stop Free Free Free Free Free Free RT Channelized - - None - - None - - None - - None Storage Length - - - - - - - - - - - - Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 - Grade, % - 0 - - 0 - - 0 - - 0 - Peak Hour Factor 79 79 79 79 79 79 79 79 79 79 79 79 Heavy Vehicles, % 0 0 0 4 4 4 4 4 4 2 2 2 Mvmt Flow 29 11 81 9 30 3 171 125 9 0 42 44 Major/Minor Minor2 Minorl Ma'or1 Major2 Conflicting Flow All 566 554 76 594 572 144 93 0 0 141 0 0 Stage 1 71 71 - 479 479 - - - - - - - Stage 2 495 483 - 115 93 - - - - - - Critical Hdwy 7.1 6.5 6.2 7.14 6.54 6.24 4.14 - 4.12 - - Critical Hdwy Stg 1 6.1 5.5 - 6.14 5.54 - - - - - Critical Hdwy Stg 2 6.1 5.5 - 6.14 5.54 - - - - - Follow-up Hdwy 3.5 4 3.3 3.536 4.036 3.336 2.236 - 2.218 - Pot Cap-1 Maneuver 438 443 991 414 427 898 1489 - 1442 - Stage 1 944 840 - 564 552 - - - - Stage 2 560 556 - 885 814 - - - - - Platoon blocked, % - Mov Cap-1 Maneuver 366 383 981 332 369 888 1480 - 1434 - Mov Cap-2 Maneuver 366 383 - 332 369 - - - - - Stage1 821 835 - 491 480 - - - - - Stage 2 455 484 - 798 809 - - - - - Approach EB WS NB SB HCM Control Delay, s 12 15.9 4.3 0 HCM LOS B C Minor Lane/Major Mvmt NBL NBT NBR EBLn1 W8Ln1 SBL SBT SBR Capacity (vehlh) 1480 - - 633 373 1434 - HCM Lane WC Ratio 0.115 - - 0.192 0.112 - - - HCM Control Delay (s) 7.8 0 - 12 15.9 0 - - HCM Lane LOS A A - B C A - HCM 95th °/stile Q(veh) 0.4 - - 0.7 0.4 0 - - Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Project AM LOS Synchro 10 Report TENW Page 4 HCM 2010 TWSC 3: 8th Ave S & S 315th SVS 315 St 10/23/2018 Intersection Int Delay, s/veh Movement 4 ESL EST EBR WBL WBT W8R N6L %T NBR SOL SBT SBR Lane Configurations 4� 4 +14 Traffic Vol, veh/h 37 1 62 7 0 8 3 196 13 3 99 1 Future Vol, veh/h 37 1 62 7 0 8 3 196 13 3 99 1 Conflicting Peds, #/hr 4 0 82 102 0 24 82 0 102 24 0 4 Sign Control Stop Stop Stop Stop Stop Stop Free Free Free Free Free Free RT Channelized - - None - - None - - None - - None Storage Length - - - - - - - - - - - - Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 - Grade, % - 0 - - 0 - - 0 - - 0 - Peak Hour Factor 78 78 78 78 78 78 78 78 78 78 78 78 Heavy Vehicles, % 10 10 10 0 0 0 5 5 5 1 1 1 Mvmt Flow 47 1 79 9 0 10 4 251 17 4 127 1 Ma er/Minor Minor2 Minorl Majorl Ma or2 Conflicting Flow All 515 596 312 648 588 386 210 0 0 370 0 0 Stage 1 218 218 - 370 370 - - - - - - - Stage 2 297 378 - 278 218 - - - - Critical Hdwy 7.2 6.6 6.3 7.1 6.5 6.2 4.15 - - 4.11 - Critical Hdwy Stg 1 6.2 5.6 - 6.1 5.5 - - - - Critical Hdwy Stg 2 6.2 5.6 - 6.1 5.5 - - - - - Follow-up Hdwy 3.59 4.09 3.39 3.5 4 3.3 2.245 - 2.209 Pot Cap-1 Maneuver 458 406 710 386 424 666 1343 - 1194 - Stage 1 766 708 - 654 624 - - - - - Stage 2 695 601 - 733 726 - - - - Platoon blocked, % - - Mov Cap-1 Maneuver 409 343 605 278 359 597 1251 - - 1093 - - Mov Cap-2 Maneuver 409 343 - 278 359 - - - - - Stage1 711 657 - 596 568 - - - - - Stage 2 667 548 - 579 674 - - - - Approach EB WB NB SB HCM Control Delay, s 14.4 14.7 0.1 _ 0.2 HCM LOS B B ■� of aj M iVliriQr Lan Si�,.�Qr Mkt_ - RIB ,SL 1114B i ruT AFQD c "I'ATI -, it ut %LSLz i rry�.l11 �+v' Jug r❑T Ju ! C+E'n SE' Capacity (veh/h) 1251 - - 511 389 1093 - �� r HCM Lane V/C Ratio 0.003 - - 0.251 0.049 0.004 - - HCM Control Delay (s) 7.9 0 - 14.4 14.7 8.3 0 HCM Lane LOS A A - B 8 A A - HCM 95th %tile Q(veh) 0 - - 1 0.2 0 - - Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Project AM LOS Synchro 10 Report TENW Page 6 HCM 2010 TWSC 4: West Drivewa /7th Ave S & S 314th St 10/23/2018 Intersection Int Delay, s/veh 3.2 Movement EBL EBT EBR VQ `WBT WBR Yd l` NBR SBL SST SBR Lane Configurations 4 44 Traffic Vol, veh/h 0 63 3 27 36 4 2 2 23 7 3 0 Future Vol, vehlh 0 63 3 27 36 4 2 2 23 7 3 0 Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0 Sign Control Free Free Free Free Free Free Stop Stop Stop Stop Stop Stop RT Channelized - - None - - None - - None - - None Storage Length - - - - - - - - - - - - Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 - Grade, % - 0 - - 0 - - 0 - - 0 - Peak Hour Factor 92 92 92 92 92 92 92 92 92 92 92 92 Heavy Vehicles, % 2 2 2 2 2 2 2 2 2 2 2 2 Mvmt Flow 0 68 3 29 39 4 2 2 25 8 3 0 Major/Minor Ma'ar1 Ma'or2 Minorl Minor2 Conflicting Flow All 43 0 0 71 0 0 171 171 70 182 170 41 Stage 1 - - - - - - 70 70 - 99 99 - Stage 2 - - - - - 101 101 - 83 71 - Critical Hdwy 4.12 - - 4.12 - - 7.12 6.52 6.22 7.12 6.52 6.22 Critical Hdwy Stg 1 - - - - - - 6.12 5.52 - 6.12 5.52 - Critical Hdwy Stg 2 - - - - - - 6.12 5.52 - 6.12 5.52 - Follow-up Hdwy 2.218 - - 2.218 - - 3.518 4.018 3.318 3.518 4.018 3.318 Pot Cap-1 Maneuver 1566 - - 1529 - - 792 722 993 779 723 1030 Stage 1 - - - - - 940 837 - 907 813 - Stage 2 - - - - - - 905 811 - 925 836 - Platoon blocked, % - - - Mov Cap-1 Maneuver 1566 - 1529 - - 778 708 993 746 709 1030 Mov Cap-2 Maneuver - - - - 778 708 - 746 709 - Stage 1 - - - - - 940 837 - 907 798 - Stage 2 - - - - 884 796 - 899 836 - Approach EB WS NB SB HCM Control Delay, s 0 3 8.9 10 HCM LOS A B Minor Lane/Maior Mvmt NBLn1 EBL EST EBR W8L WBT WBR SSLn1 Capacity(yeh1h) 945 1566 - - 1529 - - 735 HCM Lane V/C Ratio 0.031 - - - 0.019 - - 0.015 HCM Control Delay (s) 8.9 0 - - 7.4 0 - 10 HCM Lane LOS A A - - A A - B HCM 95th %tile Q(veh) 0.1 0 - - 0.1 - - 0 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/1912018 2020 Project AM LOS Synchro 10 Report TENW Page 8 HCM 2010 TWSC 1: East Driveway & S 314th St 10/23/2018 Intersection Int Delay, s/veh 2.8 Movement EST EBR WBL WBT NBL NBR Lane Configurations T.) 4 Traffic Vol, veh/h 54 8 47 58 0 11 Future Vol, veh/h 54 8 47 58 0 11 Conflicting Peds, #/hr 0 112 32 0 112 32 Sign Control Free Free Free Free Stop Stop RT Channelized - None - None - None Storage Length - - - - 0 Veh in Median Storage, # 0 - - 0 0 Grade, % 0 - - 0 0 Peak Hour Factor 73 73 73 73 73 73 Heavy Vehicles, % 0 0 13 13 0 0 Mvmt Flow 74 11 64 79 0 15 Major/Minot Major1 Ma or2 Minors Conflicting Flow All 0 0 197 0 511 224 Stage 1 - - - - 192 - Stage 2 - - - - 319 - Critical Hdwy - - 4.23 - 6.4 6.2 Critical Hdwy Stg 1 - - - - 5.4 - Critical Hdwy Stg 2 - - - 5.4 - Follow-up Hdwy - - 2.317 - 3.5 3.3 Pot Cap-1 Maneuver - - 1312 - 526 820 Stage 1 - - - - 845 - Stage 2 - - - - 741 - Platoon blocked, % - - Mov Cap-1 Maneuver - - 1190 - 409 724 Mov Cap-2 Maneuver - - - 409 - Stage 1 - - - 723 - Stage 2 - - - 672 - Approach EB WB NB HCM Control Delay, s 0 3.7 10.1 HCM LOS B Miner Lang/Mnnr Mvmt NAIL EBT FRP WRL 1AIQT Capacity (veh1h)_ 724 - - 1190 - - HCM Lane V/C Ratio 0.021 - - 0.054 - HCM Control Delay (s) 10.1 - - 8.2 0 HCM Lane LOS B - - A A HCM 95th %tile Q(veh) 0.1 - - 0.2 - Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Project PM LOS Synchro 10 Report TENW Page 2 HCM 2010 TWSC 2: 8th Ave S & S 314th St 10/23/2018 Intersection Int Delay, slveh Movement 4.5 EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations 43. 4 4� +4 Traffic Vol, veh/h 15 12 54 7 15 2 73 112 8 0 67 30 Future Vol, vehlh 15 12 54 7 15 2 73 112 8 0 67 30 Conflicting Peds, 41hr 5 0 10 9 0 4 10 0 9 4 0 10 Sign Control Stop Stop Stop Stop Stop Stop Free Free Free Free Free Free RT Channelized - - None - None - - None - None Storage Length - - - - - - - - - - Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 - Grade, % - 0 - - 0 - - 0 - 0 - Peak Hour Factor 82 82 82 82 82 82 82 82 82 82 82 82 Heavy Vehicles, % 0 0 0 5 5 5 5 5 5 5 5 5 Mvmt Flow 18 15 66 9 18 2 89 137 10 0 82 37 Major/Minor Minor2 Minorl Major1 Major2 Conflicting Flow All 446 445 121 480 458 156 129 0 0 156 0 0 Stage 1 111 111 - 329 329 - - - - - - - Stage 2 335 334 - 151 129 - - - - - Critical Hdwy 7.1 6.5 6.2 7.15 6.55 6.25 4.15 - - 4.15 - - Critical Hdwy Stg 1 6.1 5.5 - 6.15 5.55 - - - - - Critical Hdwy Stg 2 6.1 5.5 - 6.15 5.55 - - - - - Follow-up Hdwy 3.5 4 3.3 3.545 4.045 3.345 2.245 - 2.245 Pot Cap-1 Maneuver 526 511 936 491 495 882 1438 - 14D6 - Stage 1 899 807 - 678 641 - - Stage 2 683 647 - 844 784 - - - - Platoon blocked, % - Mov Cap-1 Maneuver 476 469 920 415 454 872 1426 1395 - Mov Cap-2 Maneuver 476 469 - 415 454 - - - - Stage 1 831 801 - 627 593 - - - - - Stage 2 613 598 - 763 778 - - - Approach EB W8 NB SB HCM Control Delay, s 11 13.4 2.9 0 HCM LOS B B Minor Lane/Maior Mvmt NBL NBT NBR EBLn1WBLnl SBL SBT SBR Capacity (veh/h) 1426 - - 700 460 1395 - HCM Lane V/C Ratio 0.062 - - 0.141 0.064 - - HCM Control Delay (s) 7.7 0 - 11 13.4 0 - HCM Lane LOS A A - B B A - HCM 95th %tile Q(veh) 0.2 - - 0.5 0.2 0 - Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Project PM LOS Synchro 10 Report TENW Page 4 HCM 2010 TWSC 3: 8th Ave S & S 315th St/S 315 St 10/23/2018 Intersection Int Delay, slveh Movement 3.3 ESL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations 44 Traffic Vol, veh/h 23 0 45 6 0 5 2 154 5 3 136 0 Future Vol, veh/h 23 0 45 6 0 5 2 154 5 3 136 0 Conflicting Peds, #/hr 6 0 125 126 0 7 125 0 126 7 0 6 Sign Control Stop Stop Stop Stop Stop Stop Free Free Free Free Free Free RT Channelized - - None - - None - - None - - None Storage Length - - - - - - - - - - - - Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 - Grade, % - 0 - - 0 - - 0 - - 0 - Peak Hour Factor 79 79 79 79 79 79 79 79 79 79 79 79 Heavy Vehicles, % 17 17 17 0 0 0 6 6 6 2 2 2 Mvmt Flow 29 0 57 8 0 6 3 195 6 4 172 0 Majoriklinor klinor2 Minorl Majorl Conflicting Flow All 519 638 423 665 635 331 297 0 0 327 0 0 Stage 1 305 305 - 330 330 - - - - - - Stage 2 214 333 - 335 305 - - - - - - - Criticai Hdwy 7.27 6.67 6.37 7.1 6.5 6.2 4.16 - 4.12 - - Cnticai i idwy 51,9 1 6.27 5.67 - 6.1 5.5 - - Critical Hdwy Stg 2 6.27 5.67 - 6.1 5.5 - - - - Follow-up Hdwy 3.653 4.153 3.453 3.5 4 3.3 2.254 - 2.218 Pot Cap-1 Maneuver 444 376 600 376 399 715 1242 - 1233 - Stage 1 674 636 - 687 649 - - - - Stage 2 755 618 - 683 666 - - - - - Platoon blocked, % Mov Cap-1 Maneuver 389 299 481 264 318 636 1113 - - 1104 - - Mov Cap-2 Maneuver 389 299 - 264 318 - - - - Stage 1 602 567 - 613 579 - - - Stage 2 741 551 - 537 594 - - - - Approach EB WB _ - SB —` HCM Control Delay, s 15 15.4 0.1 0.2 HCM LOS C C a A:. i AAti t. A B EB n11A1 I ni S91 SBT SPH. Irw OrLaI, eAV,IIIIo i iimt �ur =■ CT 'i;BR r.uri r e Br.i 1 Capacity (veh/h) 1113 - - 445 360 1104 - HCM Lane V/C Ratio 0.002 - - 0.193 0.039 0.003 - HCM Control Delay (s) 8.2 0 - 15 15.4 8.3 0 - HCM Lane LOS A A C C A A - HCM 95th %tile Q(veh) 0 - - 0.7 0.1 0 - - Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Project PM LOS Synchro 10 Report TENW Page 6 HCM 2010 TWSC 4: West ❑rivwa l7th Ave S & S 314th St 10/2312018 Intersection Int Delay, s/veh Movement 2.3 EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations 4� Traffic Vol, veh/h 0 44 1 12 42 5 1 1 14 5 1 0 Future Vol, veh/h 0 44 1 12 42 5 1 1 14 5 1 0 Conflicting Peds, #Ihr 0 0 0 0 0 0 0 0 0 0 0 0 Sign Control Free Free Free Free Free Free Stop Stop Stop Stop Stop Stop RT Channeliaed - None - - None - - None - - None Storage Length - - - - - - - - - - - Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 - Grade, % - 0 - - 0 - - 0 - - 0 - Peak Hour Factor 92 92 92 92 92 92 92 92 92 92 92 92 Heavy Vehicles, % 2 2 2 2 2 2 2 2 2 2 2 2 Mvmt Flow 0 48 1 13 46 5 1 1 15 5 1 0 Major/Minor Ma"orl Major2 Minorl Mlnor2 Conflicting Flow All 51 0 0 49 0 0 124 126 49 132 124 49 Stage 1 - - - - - - 49 49 - 75 75 - Stage 2 - - 75 77 - 57 49 - Criticai Hdwy 4.12 - - 4.12 - 7.12 6.52 6.22 7.12 6.52 6.22 Critical Hdwy Stg 1 - - - - 6.12 5.52 - 6.12 5.52 - Critical Hdwy Stg 2 - - - - 6.12 5.52 - 6.12 5.52 - Follow-up Hdwy 2.218 - 2.218 - 3.518 4.018 3.318 3.518 4.018 3.318 Pot Cap-1 Maneuver 1555 - - 1558 - - 850 764 1020 840 766 1020 Stage - - - - _ 964 854 - 934 833 - Stage 2 - - - _ - - 934 831 - 955 854 - Platoon blocked, % - - - - Mov Cap-1 Maneuver 1555 - - 1558 - - 843 757 1020 821 759 1020 Mov Cap-2 Maneuver - - - - - 843 757 - 821 759 - Stage 1 - - - - - - 964 854 - 934 826 Stage 2 - - - - 924 824 - 940 854 Approach EB WB NB SB HCM Control Delay, s 0 1.5 8.7 9.5 HCM LOS A A Minor Lane/Maior Mvmt NBLn1 EBL EBT EBR WBL WBT WBR SBLn1 Capacity (vehlh) 986 1555 - - 1558 - - 810 HCM Lane V/C Ratio 0.018 - - - 0.008 - - 0.008 HCM Control Delay (s) 8.7 0 - - T3 0 - 9.5 HCM Lane LOS A A - A A - A HCM 95th %tile Q(veh) 0.1 0 - - 0 - - 0 Federal Way SD - Mirror Lake Elementary School 5:00 pm 06/19/2018 2020 Project PM LOS Synchro 10 Report TENW Page 8 ATTACHMENT C Future Traffic Volume Estimates TENW m A A A N m W UI � �� U i � a w IfNO V 0 7 wo 133 3 1 72 �e0 u 73 97 23 54 ,i 118 0 8 $ 155 0 0 0 7 4 < m 170 12 3 190 197 7 0 108 k'a m o pWj m 7 � a o ITT 11 p 0 7 7 141 3 1 76 77 24 57 w 125 0 p 0 164 720 [03 0 7 4> g 180 13 3 210 8 g 209 0 115 '� 0 0 0 0 0� 8 w a W Z9 Iw 5% 5% s-D% 0 8%5% fi0% % 0��aa 960% fi0% 2ae' aS 50% 5% 50% w% BO% 20% 40% 0%80% FM o� NN a� fq N w O O g g � m tNu J w TF > S@@ as J W W p N 9 32 2 3 S 27 27 27 32 11 11 wg 21 0 2 $ 3 32 m 27 $ S 27 23 2 32 32 4b 32 9 r�> 18 18 0 i i IV � <,■ iW pp N V v O O ■S N f11 yy m 32 2 0 10 K 168 3 1 103 gg y 104 135 35 68 0 146 0 0 0 2 3 196 99 99 33 0 0 ay 3 27 23 7 8 212 13 3 242 241 7 0 124 �> 18 18 0 0 W i e 3m a a CDIV r m e a o da `Z w CA S O O O! N N N co S N N O N 0 a 3 1 co d pr 2 O C -i C 3 co co N 7 O C 3 co O a mm A N �I J N y A g 2 P A ^ N Fpj N O O OI m 0 5 2 115105 SB 24 87 44 0132 112 loo 106 S+ 63 0 5 4 < e 5 3 159 170 B 0 117 0 0 O A �5 QJ U J N N W A y A N A p� m N qq Ol m (AO V ago a P p2 W 0 0 0 5 g w 170 2 122 u 111 59 25 92 � 47 0 Q 0 JO 12 05 5 g 147 5 169 $ 180 8 0 124 0 Q 0 0 II II II 11 o b r m 29Tfl 0) N m NN m N m O tUll P > � TEN. ONI O 60% 5% 5% 60% 60% � 60% 60% 20% 20% Y Y 40% 0% 5% > 8Q% 60% 50% 5% 60% BO% 60% 20% 40% 40% 0% � � P e X e X ae ;e P U I-T > V W U IT. 140 1 SQQg 17 17 � P 17 14 5 5 �' 90i14 E14 mm17 z z 114 o P 14 $ 14 6 11 11 0 N A N Omm O hl 41 N d N N N lAil m N m � m {�/I Oi m N p 12 (Y a P 14 1 0 6 187 2 0 139 128 73 30 97 56 0 0 0 w 1 1 754 l36 112 67 0 g 0 17 14 5 6 9 161 5 3 182 194 8 0 130 i� ll ll 0 0 CCtlC OI II (� N 0 J a m x fA to 3m N a a N 0 m� W m � � 00 = q w e = C O � � O N 3 N N CD CD soi C C a 3 m mC N C d �c C D � N N a 9 N a 9 J mCD w3 S September 24, 2018 Ray Vefik Federal Way Public Schools Capital Projects (206) 919-0372 rvefi k@fwps.o rg 1'211 S 232"d St Federal Way, WA 98004 RE: Mirror Lake Elementary School — Subsurface Soil UST Investigation 625 S 314th Street, Federal Way, Washington PBS Project #41519.002 PBS Engineering and Environmental Inc. (PBS) performed a subsurface soil investigation at the request of Federal Way Public Schools (FWPS). The investigation was completed at Mirror Lake Elementary School (MILES) located at 625 S 314th Street, Federal Way, Washington (Figure 1). The school facility is currently occupied. PBS understands that FWPS plans to demolish the current facilities at MLES in preparation for construction of a new school at the site. The subsurface investigation was performed in the vicinity of one former underground heating oil storage tank (UST) located to the west of the boiler room. The intent was to evaluate if a potential release from the former UST has impacted the surrounding soil. The scope of services was presented in the Subsurface Investigation proposal (WA28803) by PBS, dated August 3, 2018. SUBSURFACE SOILS INVESTIGATION On August 23, 2018 PBS met with Applied Professional Services (APS) of North Bend, Washington to conduct private utility locating and a ground penetrating radar (GPR) survey in the area west of the boiler room. GPR is a geophysical method that uses radar pulses to reflect images of the subsurface. An asphalt patch approximately 10 by 15 feet in dimension was observed immediately west of the boiler room. The GPR survey did not identify a tank or subsurface anomaly in the area. The lack of a GPR response and the asphalt patch indicate that a UST was likely removed from the site. It is however still possible that a release occurred prior to removal, and that fuel impacted soil could still be present in the subsurface. The area surrounding the former UST is paved with asphalt and bound on three sides by the school building and on the west by a drive aisle and grass field. Access to this area is provided by a gated vehicle width driveway. The underground utility survey of the project area indicated numerous potential steam pipes, water lines and sewer pipes, natural gas lines, buried electrical and unidentified subsurface utilities. Given the location of the former UST in relation to the site buildings and underground utilities, three boring locations were proposed on the north, west and south sides of the former UST. Proximity of the former UST to the adjacent building prevented investigation of soils to the east (Figure 2). The asphalt patch suggests that the UST was less than 10 feet in diameter. The base of the former UST is estimated to have been approximately 10 to 12 feet below ground surface (bgs). On August 27, 2018, PBS Environmental conducted a subsurface investigation at the subject property to investigate the soil in proximity to the former UST. Holocene Drilling of Puyallup, Washington adva4 <"4�j TTCD APR 0 4 2019 2517 EASTLAKE AVENUE EAST, SUITE 100, SEATTLE, WA 98102 0 206.233.9639 MAIN • 866.727.0140 FA)C 8(. %JM WAY �fJ4fi I FY DiVtPMbVr Federal Way Public Schools Mirror Lake Subsurface Investigation Report September 24, 2018 Page 2 three soil borings (ML-01 to ML-03) using a track mounted direct -push drill rig. Sampling was completed by driving a 2.25-inch diameter steel solid -barrel 5-foot sampler lined with a polyvinyl chloride (PVC) sleeve. Two discrete soil samples were collected from each boring at depths corresponding to one to two feet below the estimated base elevation (10 to 12 feet) of the former UST. Groundwater was encountered in all three onsite borings at depths of approximately 8 feet bgs. A grab groundwater sample was collected from boring ML-01 as the boring is downslope and assumedly downgradient With respect to groundwater flow from the former UST. The groundwater sample was collected from a temporary PVC screen placed in the open soil boring using a peristaltic pump and disposable polyethylene tubing. All samples were collected in laboratory -supplied containers, placed in a cooler with ice and transported to Fremont Analytical Laboratory in Seattle, Washington, under chain -of -custody documentation. Samples were analyzed for the following: • Diesel range total petroleum hydrocarbons (TPH) by Method NWTPH-Dx (method includes reporting TPH in the heavy oil range); Benzene, toluene, ethylbenzene and xylene (BTEX) by US Environmental Protection Agency (EPA) Method 8260C. Additionally, one soil sample was analyzed for polyaromatic hydrocarbons (PAHs) by US EPA method 8270-SIM. PBS personnel wore new disposable nitrile gloves when collecting samples. Upon completion of sampling, temporary boreholes were backfilled and sealed with bentonite to six inches below grade and capped with asphalt to match the surrounding surface. FINDINGS Soil Field Observations The soils encountered in the borings consisted of medium dense, brown, well graded gravelly sand and dense, gray, silty sand. Groundwater was observed in the soil borings at a depth of approximately 8 feet bgs. The lithologies encountered at depths greater than 10 feet bgs were dense to hard with pervasive cobbles, and drilling rig refusal was encountered between 13 and 17 feet bgs in the three borings onsite. No borings advanced onsite exhibited evidence of staining or odor typical to a petroleum release. Detailed boring logs are included in Attachment A of this report. SAMPLE RESULTS PBS submitted a total of six soil samples and one groundwater sample for laboratory analysis. Copies of the laboratory reports and sample chain -of -custody forms are presented in Attachment B. Sampling results and applicable cleanup levels are summarized in Table 1. Results of soil analyses performed are summarized below. TPH as diesel and heavy oil were not detected above laboratory reporting limits in any of the soil or groundwater samples collected from the site. BTEX constituents were not detected above laboratory reporting limits in any of the soil or groundwater samples collected from the site. PAHs were not detected above laboratory reporting limits in the soil sample selected for PAH analysis. 41519.002 Federal Way Public Schools Mirror Lake Subsurface Investigation Report September 24, 2018 Page 3 CONCLUSIONS Based on the findings of this investigation there was no petroleum impacted soil identified to the north, west and south of the former UST to a maximum depth of 17 feet bgs. However, given the sandy nature of soils encountered at the subject property it is possible that if a release occurred at the base of the tank it could migrate vertically down instead of laterally. Investigation of the area east of the former UST was not feasible due to proximity to the building, and as such remains uncharacterized. PBS recommends that observations be made of subsurface soils in the vicinity of the former UST when the overlying slab is removed during the demolition phase of proposed construction. Soil in the area to the east of the former UST should also be observed upon demolition of the building and removal of the subsequent underlying slab. Observation should include visual observations of staining, olfactory observations of fuel odors and field screening of soil underlying the slab with a PID. Should any evidence of contamination be observed during the demolition phase or any other phase of construction, a tank closure assessment should be performed at the subject property. LIMITATIONS PBS has prepared this report for use by FWPS. This report is not intended for use by others without the written consent of the FWPS. Our interpretation of soil conditions in this study was based on field observations and analytical data from the indicated explorations. Regulated substances may exist in portions of the site that were not explored or analyzed. The conclusions in this report are not to be considered a legal opinion as the client's duty concerning due diligence relating to potential liabilities in leasing, owning, or purchasing real estate. PBS ENGINEERING AND ENVIRONMENTAL INC. Digitally signed by James Welles Date: 2018.09.24 16.41:51 -07'00' James Welles Project Geologist Reviewed By: Digitally signed by *,,Thomas Mergy Date: 2018.09.24 17:00:02-07'00' Thomas Mergy, LHG Environmental Services Manager Attachments: Figure 1: Vicinity Map Figure 2: Sample Location Map ok Waab/ �a �o � 7 [� 3249 JAMES WELLES 41519.002 Federal Way Public Schools Mirror Lake Subsurface Investigation Report September 24, 2018 Page 4 Table 1: Laboratory Data Summary Table Attachment A: Borelogs Attachment B: Laboratory Data Attachment C: Toxicity Equivalence Calculations for Carcinogenic PAHs (cPAHs) ALITHORREVI EW EREd itor 41519.002 Figures A Aw SOURCE: USGS POVERTY BAY, WA QUADRANGLE 1990, PHOTO REVISED 1994, SEATTLE FEDERAL WAY OLYMPIA ' SCALE 1" = 2000' -SITE VANCOUVER 0' 1,000' 2,000' 4,000' WASHINGTON PREPARED FOR: FEDERAL WAY PUBLiC.SCHOM& VICINITY MAP FIIAV 'PBS MIRROR LAKE ELEMENTARY SCHOOL APR 0 'FIGURE 625 SOUTH 314TH STREET FEDERAL WAY, WASHINGTON r•rry nc cc , a ?�1WINITY DFVFI_0P'rVENT SUBJECTPRGPERTYtc S j).NTHST _ _ •4' r ��i Y �i . ti N 7r'-' T L MIRROR LAKE ELEMENTARY yr SCHOOL_` ti _ Go2 ML 01 q yl L-03 APPROXIMATE LOCN OF —� REMOVED LIST AN&io, X 15, ASPHALT PATCH. SEE ENiORGEfl(- VIEW FOR DETt4A- j SOURCE: © 2018 GOGGLE EARTH PRO PARKING ®ML-02 -� LOT 1-- I I I 1 I I I 1 I 1 I 1 I ML-01 Q5 I APPROX. LOCATION Q5 ML-03 OF REMOVED UST AND ASPHALT PATCH BOILER ROOM SITE PLAN SCALE 1" = 150' 0' 75' 150' 300' LEGEND Q5ML-01 SOIL BORING NUMBER AND LOCATION ENLARGED VIEW �rr SCALE 1"=20'#RfV61 PREPARED FOR: FEDERAL WAY PUBLIC SCHOOLS SOIL BORING LOCATION MAP "PR ; A19002 PBSMIRROR LAKE ELEMENTARY SCHOOL FIGURE 625 SOUTH 314TH STREET COMMUNITY FEID IA1 W r FEDERAL WAY, WASHINGINGTON Tables Q T >N O > L — u Ln f6 � CU C _ a) E v aJ E uq N N L O Y � O J M � O in c In V G w O Z QJ A h V N ^ DO I 0 i i E r O { i o id 0 v , ; � I d E 'N a W a q-i i i i a E o a p O c m E , f a� d � C , CD , CL z N m l0 l0 V N O N C In V r� V m V m vi N V V O O O ai G O O O O O O nj O A 0 0 0 O O O ' V x Y v V v v V V E 1 O5 J al oD w a v CD 0 t o 0 0 0 0 0 � o .Cs W 0 0 O O O O v W 1 V v V V V V F I d C N N � N to M V M O N O O m ' y r r r r r O O O_ O O O O O V F V V V V v v V E CD C N N V r m O 0 c o 0 0 0 0 0 0 Goo 0 0 0 0 0 0 v m v v v v v v 0 Cn vi I,� v o m m O O O M r O Qj O C)d i V n O m I V v v v v v N v = x i ia- O N m N N C O Cn O O O o N O C) m O O 0 v v v V v v NI P v V v O L r L O O O O O O r T fvl O M O' C i6 m m m m m m m y O O O O O O O 0 W . .0 W W a\0 d r o N N rcm r .CO O C, C:)O C) O J J m m U V � O r O r r r a O O N O N O rtm O rcm O O L bl r O O L E J J J J J J J 2 2 2 2 5 2 ,n u cu X a C aj v .° Q d � Q C V N N � C O > V � N JaJ C6 C Q 2 O � M C L a) U N H -0 Q 6 U r M I— o E 00 O m L CDL M '3 L U . l0 N L Q CO ut v _ L ,n C CL ? >O a1 O^ u L p <o m aJ aj E N -O v O > O� O E Q r L J _ L d CL a1 ay = al W Q E 7 > E � T Q .O d N L u aJ 0-L Z N w E ___. T Q a1 U O >` C C fa > rn E g o -0a) N C,Q C_ T O C — ut V L X N _O x c d O1 C N to N aCj Q `) � v >+ T N a1 C > O v O N O� O u V1 'D C• (u [0 L>, to O C v al ns O a) O > L CI - O Q co: O a to p- T . V V >+ O aJ m O -0f` C ut aJ m V a) > C Q v E ° > v d M E m �, O O O Q Q �° o 'c m a O E V w ai O V E M aJ aJ C N V a) O C Q7 C 1, aye+ Q a1 V _ N T � O E � O .V o m Q II E o= c ~ II II II II C Q C a, L W Y. in J _ II O n] is 0 n r\jZ~> Z m a E v a Attachment A Borelogs MIRROR LAKE UST INVESTIGATION MIRROR LAKE ELEMENTARY SCHOOL BORING ML-01 FEDERAL WAY, WA �4 PBS PBS PROJECT NUMBER: BORING ML-01 LOCATION: (See Site Plan) 41519.002 U oW _j�e' } COMMENTS/ DEPTH x 0 MATERIAL DESCRIPTION w o a. _jW a m 22 a W >^ WELL INSTALLATION FEET ¢O. D¢ �� �a 0z <°w Ww3 o0 w F- o: o.o ASPHALT o.o • Medium dense dark brawn SAND (SW) ;- with gravel; very fine to very coarse sand; 25% fine subrounded to subangular gravel; 15% clay; dry 2.0 70 0.0 4.0 8.0 Dense light gray silty SAND (SM); very fine to medium sand; 10% fine rounded 0.0 q 100 a.o gravel; 20% silt; moist 0.0 10.0 Medium dense light gray silty SAND (SM); very fine to medium sand; 10% fine 0.0 - rounded gravel; 20% silt/silty; moist f Hard yellow -brown silty SAND (SM); very I 12.0 fine to fine sand; 10% fine rounded gravel; — 0.0 { j: it 25% silt; moist 100 14.0 i f 0.0 Dense light gray silty SAND (SM); very 16.0 fine to medium sand; 10% fine rounded - 100 gravel; 25% silt; wet 00 Final depth: 17.0 ft bgs 18.0 20.0 BORING METHOD: Direct Push LOGGED BY: J. Welles DRILLED BY: Holocene Drilling COMPLETED: 8/27/18 BORING BIT DIAMETER: 21/ inch MIRROR LAKE UST INVESTIGATION s MIRROR LAKE ELEMENTARY SCHOOL FEDERAL WAY, WA BORING ML-02 PBS PROJECT NUMBER: PBS PR BORING ML-02 LOCATION: Plan) 41519.002 (See Site v o W LU W J� } w- COMMENTS/ DEPTH a MATERIAL DESCRIPTION : ❑ a J a m a o L > WELL INSTALLATION FEET �0 03 as a¢z << U, o� o.o AS.PHALT Medium dense dark brown SAND (SW) ;- with gravel; very fine to very coarse sand; 25% fine subangular to subrounded 0.0 gravel; 15% clay; damp 2.0 30 4.0 — 0.0 6.0 .'.'. MIRROR LAKE UST INVESTIGATION MIRROR LAKE ELEMENTARY SCHOOL FEDERAL WAY, WA BORING ML-03 PBS PR PROJECT NUMBER: BORING ML-03 LOCATION: (See Site Plan) i` PBS 41519.002 DEPTH MATERIAL DESCRIPTION ? w SI a o- m ii o �' Y > � COMMENTS/ WELL INSTALLATION FEET o CD o¢ (D o a �� 20 U)w3 0. w ranz Lu o 0.0 ASPHALT Medium dense dark brown SAND (SW) '- with gravel; very fine to medium sand; : 25% fine to coarse subangular to :• subrounded gravel; 15% clay- damp 2.0 0.0 70 4.0 — 0.0 &0 j Dense light gray silty SAND (SM); very fine to medium sand; 10% fine to coarse 100 rounded gravel; 25% silt; damp 17 8.0 I .;1 I' 0.0 1D.o ;. Dark gray SAND (SW) with gravel; fine to—� o very coarse sand; fine to coarse rounded o gravel; damp J Hard yellowish brown silty SAND (SM); very fine to medium sand; 10% fine to 100 coarse rounded gravel; 35% silt; moist 12.0 0.0 Final depth: 13.0 ft bgs co 0 J 14.D BORING METHOD: Direct Push LOGGED BY: J. Welles DRILLED BY: Holocene Drilling COMPLETED: 8/27/18 BORING BIT DIAMETER: 2'/.-inch Attachment B Laboratory Report and Chain of Custody Documentation Fremont 3600 Fremont Ave N. Seattle, WA 98103 T: (206) 352-3790 F: (206) 352-7178 info@fremontanalytical.com PBS Engineering & Environmental James Welles 2517 Eastlake Ave, E #100 Seattle, WA 98102 RE: Mirror Lake Elementary Work Order Number: 1808332 September 17, 2018 Attention James Welles: Fremont Analytical, Inc. received 11 sample(s) on 8/27/2018 for the analyses presented in the following report. Diesel and Heavy Oil by NWTPH-Dx/DX Ext. Polyaromatic Hydrocarbons by EPA Method 8270 (S/M) Sample Moisture (Percent Moisture) Volatile Organic Compounds by EPA Method 8260C This report consists of the following: - Case Narrative - Analytical Results - Applicable Quality Control Summary Reports - Chain of Custody All analyses were performed consistent with the Quality Assurance program of Fremont Analytical, Inc. Please contact the laboratory if you should have any questions about the results. Thank you for using Fremont Analytical. Sincerely, Chelsea Ward Project Manager DOD/ELAP Certification K17-135, ISO/IEC 17025.2005 ORELAP Certification: WA 100009-007 (NELAP Recognized) Revision v3 www.fremontanalytical.com Page 1 of 31 Fremont Date: 0911712018 CLIENT: PBS Engineering & Environmental Work Order Sample Summary Project: Mirror Lake Elementary Work Order: 1808332 Lab Sample ID 1808332-001 1808332-002 1808332-003 1808332-004 1808332-005 1808332-006 1808332-007 1808332-008 1808332-009 1808332-010 1808332-011 Client Sample ID TJ-01-10 TJ-01-14 TJ-02-06 TJ-02-13.5 ML-01-07 ML-01-11 M L ' 02-09 M L-02-13 ML-03-10 ML-03-13 ML-01-W Date/Time Collected 08/27/2018 8:20 AM 08/27/2018 8:37 AM 08/27/2018 9:05 AM 08/27/2018 9:24 AM 08/27/2018 11:30 AM 08/27/2018 11:38 AM 08/27/2018 12:50 PM 08/27/2018 12:58 PM 08/27/2018 1:50 PM 08/27/2018 1:55 PM 08/27/2018 12:20 PM Date/Time Received 08/27/2018 3:57 PM 08/27/2018 3:57 PM 08/27/2018 3:57 PM 08/27/2018 3:57 PM 08/27/2018 3:57 PM 08/27/2018 3:57 PM 08/27/2018 3:57 PM 08/27/2018 3:57 PM 08/27/2018 3:57 PM 08/27/2018 3:57 PM 08/27/2018 3:57 PM Revision v3 Note: If no "Time Collected" is supplied, a default of 12:OOAM is assigned Page 2 of 31 Fremont CLIENT: PBS Engineering & Environmental Project: Mirror Lake Elementary WorkOrder Narrative: I. SAMPLE RECEIPT: Samples receipt information is recorded on the attached Sample Receipt Checklist. Case Narrative W O#: 1808332 Date: 9/17/2018 II. GENERAL REPORTING COMMENTS: Results are reported on a wet weight basis unless dry -weight correction is denoted in the units field on the analytical report ("mg/kg-dry" or "ug/kg-dry"). Matrix Spike (MS) and MS Duplicate (MSD) samples are tested from an analytical batch of "like" matrix to check for possible matrix effect. The MS and MSD will provide site specific matrix data only for those samples which are spiked by the laboratory. The sample chosen for spike purposes may or may not have been a sample submitted in this sample delivery group. The validity of the analytical procedures for which data is reported in this analytical report is determined by the Laboratory Control Sample (LCS) and the Method Blank (MB). The LCS and the MB are processed with the samples and the MS/MSD to ensure method criteria are achieved throughout the entire analytical process. III. ANALYSES AND EXCEPTIONS: Exceptions associated with this report will be footnoted in the analytical results page(s) or the quality control summary page(s) and/or noted below. Revision v3 Page 3 of 31 Fremont Qualifiers: Qualifiers & Acronyms WO#: 1808332 Date Reported: 9/17/2018 * - Flagged value is not within established control limits B - Analyte detected in the associated Method Blank D - Dilution was required E - Value above quantitation range H - Holding times for preparation or analysis exceeded I - Analyte with an internal standard that does not meet established acceptance criteria J - Analyte detected below Reporting Limit N - Tentatively Identified Compound (TIC) Q - Analyte with an initial or continuing calibration that does not meet established acceptance criteria (<20%RSD, <20% Drift or minimum RRF) S - Spike recovery outside accepted recovery limits ND - Not detected at the Reporting Limit R - High relative percent difference observed Acronyms: %Rec - Percent Recovery CCB - Continued Calibration Blank CCV - Continued Calibration Verification DF - Dilution Factor HEM - Hexane Extractable Material ICV - Initial Calibration Verification LCS/LCSD - Laboratory Control Sample / Laboratory Control Sample Duplicate MB or MBLANK - Method Blank MDL - Method Detection Limit MS/MSD - Matrix Spike / Matrix Spike Duplicate PDS - Post Digestion Spike Ref Val - Reference Value RL - Reporting Limit RPD - Relative Percent Difference SD - Serial Dilution SGT - Silica Gel Treatment SPK - Spike Surr - Surrogate Revision v3 www.fremontanalytical.com Page 4 of 31 Analytical Report Work Order: 1808332 Date Reported: 9/17/2018 Client: PBS Engineering & Environmental Collection Date: 8/27/2018 11:30:00 AM Project: Mirror Lake Elementary Lab ID: 1808332-005 Matrix: Soil Client Sample ID: ML-01-07 Analyses Result RL Qual Units DF Date Analyzed Diesel and Heavv Oil by NWTPH-Dx/Dx Ext Diesel (Fuel Oil) ND 20.0 Heavy Oil ND 49.9 Surr: 2-Fluorobiphenyl 66.9 50 - 150 Surr: o-Terphenyl 72.2 50 - 150 Volatile Organic Compounds by EPA Method^8260C Benzene ND 0.0122 Toluene ND 0.0122 Ethylbenzene ND 0.0153 m,p-Xylene ND 0.0305 o-Xylene ND 0.0153 Surr: Dibromofluoromethane 110 56.5 - 129 Surr: Toluene-d8 78.9 64 5 -151 Surr: 1-Bromo-4-fluorobenzene 111 54.8 - 168 Sample Moisture (Percent Moisture) Percent Moisture 10.7 0.500 Revision v3 Batch ID: 21775 Analyst: SS mg/Kg-dry 1 8/30/2018 1:22:30 AM mg/Kg-dry 1 8/30/2018 1:22:30 AM %Rec 1 8/30/2018 1:22:30 AM %Rec 1 8/30/2018 1:22:30 AM Batch ID: 21789 Analyst: CR mg/Kg-dry 1 8/31/2018 7:37:58 AM mg/Kg-dry 1 8/31/2018 7:37:58 AM mg/Kg-dry 1 8/31/2018 7:37:58 AM mg/Kg-dry 1 8/31/2018 7:37:58 AM mg/Kg-dry 1 8/31/2018 7:37:58 AM %Rec 1 8/31/2018 7:37:58 AM %Rec 1 8/31/2018 7:37:58 AM %Rec 1 8/31/2018 7:37:58 AM Batch ID: R45790 Analyst: NG wt% 1 8/29/2018 9:08:02 AM Page 5 of 31 D Fremont Analytical Report Work Order: 1808332 Date Reported: 9/17/2018 Client: PBS Engineering & Environmental Collection Date: 8/27/2018 11:38:00 AM Project: Mirror Lake Elementary Lab ID: 1808332-006 Matrix: Soil Client Sample ID: ML-01-11 Analyses Result RL Qual Units DF Date Analyzed Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 21775 Analyst: SB Diesel (Fuel Oil) ND 20.2 mg/Kg-dry 1 8/30/2018 1:52:26 AM Heavy Oil ND 50.5 mg/Kg-dry 1 8/30/2018 1:52:26 AM Surr: 2-Fluorobiphenyl 66.7 50 -150 %Rec 1 8/30/2018 1:52:26 AM Surr: o-Terphenyl 74.0 50 - 150 %Rec 1 8/30/2018 1:52:26 AM Polyaromatic Hydrocarbons by EPA Method 8270 [SIM1 Batch ID: 21871 Analyst: IH Naphthalene ND 38.9 pg/Kg-dry 1 9/10/2016 11:23:28 PM 2-Methylnaphthalene ND 38.9 pg/Kg-dry 1 9/10/2018 11:23:28 PM 1-Methylnaphthalene ND 38.9 pg/Kg-dry 1 9/10/2018 11:23:28 PM Acenaphthylene ND 38.9 pg/Kg-dry 1 9/10/2018 11:23:28 PM Acenaphthene ND 38.9 pg/Kg-dry 1 9/10/2018 11:23:28 PM Fluorene ND 38.9 pg/Kg-dry 1 9/10/2018 11:23:28 PM Phenanthrene ND 38.9 pg/Kg-dry 1 9/10/2018 11:23:28 PM Anthracene ND 38.9 pg/Kg-dry 1 9/1012018 11:23:28 PM Fluoranthene ND 38.9 pg/Kg-dry 1 9/10/2018 11:23:28 PM Pyrene ND 38.9 pg/Kg-dry 1 9/10/2018 11:23:28 PM Benz(a)anthracene ND 38.9 pg/Kg-dry 1 9/10/2018 11:23:28 PM Chrysene ND 38.9 pg/Kg-dry 1 9/10/2018 11:23:28 PM Benzo(b)fluoranthene ND 38.9 pg/Kg-dry 1 9/10/2018 11:23:28 PM Benzo(k)fluoranthene ND 38.9 pg/Kg-dry 1 9/10/2018 11:23:28 PM Benzo(a)pyrene ND 38.9 pg/Kg-dry 1 9/10/2018 11:23:28 PM Indeno(1,2,3-cd)pyrene ND 38.9 pg/Kg-dry 1 9/10/2018 11:23:28 PM Dibenz(a,h)anthracene ND 38.9 pg/Kg-dry 1 9/10/2018 11:23:28 PM Benzo(g,h,i)perylene ND 38.9 Q pg/Kg-dry f 9/10/2018 11:23:28 PM Surr: 2-Fluorobiphenyl 82.2 12.5 -140 %Rec 1 9/10/2018 11:23:28 PM Surr: Terphenyl-d14 (surr) 104 45.7 -172 %Rec 1 9/10/2018 11:23:28 PM NOTES: Q - Indicates an analyte with a continuing calibration that does not meet established acceptance criteria (<20%RSD, <20% Drift) Volatile Organic Compounds by EPA Method 8260C Batch ID: 21789 Analyst: CR Benzene ND 0.0127 mg/Kg-dry 1 8/31/2018 8:08:24 AM Toluene ND 0.0127 mg/Kg-dry 1 8/31/2018 8:08:24 AM Ethylbenzene ND 0.0159 mg/Kg-dry 1 8/31/2018 8:08:24 AM m,p-Xylene ND 0.0317 mg/Kg-dry 1 8/31/2018 8:08:24 AM o-Xylene ND 0.0159 mg/Kg-dry 1 8/31/2018 8:08:24 AM Surr: Dibromofluoromethane 105 56.5 -129 %Rec 1 8/31/2018 8:08:24 AM Surr: Toluene-d8 95.4 64.5 - 151 %Rec 1 8/31/2018 8:08:24 AM Revision v3 Page 6 of 31 rjFremoift Analytical Report Work Order: 1808332 Date Reported: 9/17/2018 Client: PBS Engineering & Environmental Collection Date: 8/27/2018 11:38:00 AM Project: Mirror Lake Elementary Lab ID: 1808332-006 Matrix: Soil Client Sample ID: ML-01-11 Analyses Result RL Qual Units DF Date Analyzed Volatile Organic Compounds by EPA Method 8260C Sum 1-Bromo-4-fluorobenzene Sample Moisture [percent Moisture] Percent Moisture Revision v3 Batch ID: 21789 94.9 54.8 - 168 %Rec 1 Analyst: CR 8/31/2018 8:08:24 AM Batch ID: R45790 Analyst: NG 10.8 0 500 wt% 1 8/29/2018 9:08:02 AM Page 7 of 31 Fremont Analytical Report Work Order: 1808332 Date Reported: 9/17/2018 Client: PBS Engineering & Environmental Collection Date: 8/27/2018 12:50:00 PM Project: Mirror Lake Elementary Lab ID: 1808332-007 Matrix: Soil Client Sample ID: ML-02-09 Analyses Result RL Qual Units DF Date Analyzed Diesel and Head Oil by NVVTPH-Dx1Dx_Ext. Batch ID: 21775 Analyst: SB Diesel (Fuel Oil) ND 20.3 Heavy Oil ND 50.7 Surr: 2-Fluorobiphenyl 73.4 50 - 150 Surr: o-Terphenyl 78.1 50 - 150 Volatile Organic Compounds by EEA Method 8260C Benzene ND 0.0116 Toluene ND 0.0116 Ethylbenzene ND 0.0145 m,p-Xylene ND 0.0291 o-Xylene ND 0.0145 Surr: Dibromofluoromethane 105 56.5 - 129 Surr: Toluene-d8 96.2 64.5 - 151 Surr: 1-Bromo- 4-fluorobenzene 87.4 54.8 - 168 Sample Moisture (Percent Moisture) Percent Moisture Revision v3 7.53 0 500 mg/Kg-dry 1 8/30/2018 2:22:22 AM mg/Kg-dry 1 8/30/2018 2:22:22 AM %Rec 1 8/30/2018 2:22:22 AM %Rec 1 8/30/2018 2:22:22 AM Batch ID: 21789 Analyst: CR mg/Kg-dry 1 8/31/2018 8:38:46 AM mg/Kg-dry 1 8/31/2018 8:38:46 AM mg/Kg-dry 1 8/31/2018 8:38:46 AM mg/Kg-dry 1 8/31/2018 8:38:46 AM mg/Kg-dry 1 8/31/2018 8:38:46 AM %Rec 1 8/31/2018 8:38:46 AM %Rec 1 8/31/2018 8:38:46 AM %Rec 1 8/31/2018 8:38:46 AM Batch ID: R45790 Analyst: NG wt% 1 8/29/2018 9:08:02 AM Page 8 of 31 Fremont Analytical Report Work Order: 1808332 Date Reported: 9/17/2018 Client: PBS Engineering & Environmental Collection Date: 8/27/2018 12:58:00 PM Project: Mirror Lake Elementary Lab ID: 1808332-008 Matrix: Soil Client Sample ID: ML-02-13 Analyses Result RL Qual Units DF Date Analyzed Diesel and Heavy Oil by NWTPH-Dx1iDx Ext. Diesel (Fuel Oil) ND 20.2 Heavy Oil ND 50.4 Surr: 2-Fluorobiphenyl 66.2 50 - 150 Surr: o-Terphenyl 70.2 50 - 150 Volatile Oroanic Compounds by EPA Method 8260C Benzene ND 0.0143 Toluene ND 0.0143 Ethylbenzene ND 00178 m,p-Xylene ND 0.0356 o-Xylene ND 0.0178 Surr: Dibromofluoromethane 103 56.5 - 129 Surr: Toluene-d8 95.6 64.5 -151 Surr: 1-Bromo-4-fluorobenzene 95.1 54.8 - 168 Sample Moisture (Percent Moisture) Percent Moisture 14.5 0.500 Revision v3 Batch ID: 21775 Analyst: SB mg/Kg-dry 1 8/30/2018 2:52:17 AM mg/Kg-dry 1 8/30/2018 2:52:17 AM %Rec 1 8/30/2018 2:52:17 AM %Rec 1 8/30/2018 2:52:17 AM Batch ID: 21789 Analyst: CR mg/Kg-dry 1 8/31/2018 9:39:49 AM mg/Kg-dry 1 8/31/2018 9:39:49 AM mg/Kg-dry 1 8/31/2018 9:39:49 AM mg/Kg-dry 1 8/31/2018 9:39:49 AM mg/Kg-dry 1 8/31/2018 9:39:49 AM %Rec 1 8/31/2018 9:39:49 AM %Rec 1 8/31/2018 9:39:49 AM %Rec 1 8/31/2018 9:39:49 AM Batch ID: R45790 Analyst: NG Wt% 1 8/29/2018 9:08:02 AM Page 9 of 31 "Fremont Analytical Report Work Order: 1808332 = Date Reported: 9/17/2018 Client: PBS Engineering & Environmental Collection Date: 8/27/2018 1:50:00 PM Project: Mirror Lake Elementary Lab ID: 1808332-009 Matrix: Soil Client Sample ID: ML-03-10 Analyses Result RL Qual Units DF Date Analyzed Diesel and Heavy Oil by NWTPH-Ox1Dx Ext. Batch ID: 21775 Analyst: SB Diesel (Fuel Oil) ND 212 Heavy Oil ND 53.1 Surr: 2-Fluorobiphenyl 73.8 50 - 150 Surr: o-Terphenyl 77.9 50 - 150 Volatile Organic Compounds by EPA Method 8260C Benzene ND 0.0113 Toluene ND 0.0113 Ethylbenzene ND 0.0141 m,p-Xylene ND 0.0281 o-Xylene ND 0.0141 Surr: Dibromofluoromethane 105 56.5 - 129 Surr: Toluene-d8 95.1 64.5 - 151 Surr: 1-Bromo-4-fluorobenzene 102 54.8 - 168 Sam le Moisture Percent Moisture mg/Kg-dry 1 8/30/2018 3:52:05 AM mg/Kg-dry 1 8/30/2018 3:52:05 AM %Rec 1 8/30/2018 3:52:05 AM %Rec 1 8/30/2018 3:52:05 AM Batch ID: 21789 Analyst: CR mg/Kg-dry 1 8/31/2018 10:10:11 AM mg/Kg-dry 1 8/31/2018 10:10:11 AM mg/Kg-dry 1 8/31/2018 10:10:11 AM mg/Kg-dry 1 8/31/2018 10:10:11 AM mg/Kg-dry 1 8/31/2018 10:10:11 AM %Rec 1 8/31/2018 10:10:11 AM %Rec 1 8/31/2018 10:10:11 AM %Rec 1 8/31/2018 10:10:11 AM Batch ID: R45790 Analyst: NG Percent Moisture 10.2 0.500 wt% 1 8/29/2018 9:08:02 AM Revision v3 Page 10 of 31 r�.• �w ! Fremont Analytical Report Work Order: 1808332 Date Reported: 9/17/2018 Client: PBS Engineering & Environmental Collection Date: 8/27/2018 1:55:00 PM Project: Mirror Lake Elementary Lab ID: 1808332-010 Matrix: Soil Client Sample ID: ML-03-13 Analyses Result RL Qual Units DF Date Analyzed Diesel and Heavy Oil by NVVTPH-Dx/Dx Ext. Batch ID: 21775 Analyst: SB Diesel (Fuel Oil) ND 20.4 Heavy Oil ND 51 1 Surr: 2-Fluorobiphenyl 74.7 50 - 150 Surr: o-Terphenyl 78.9 50 - 150 Volatile Organic Compounds by EPA Method 8260C Benzene ND 0.0120 Toluene ND 0.0120 Ethylbenzene ND 0.0150 m,p-Xylene ND 0.0300 o-Xylene ND 0.0150 Surr: Dibromofluoromethane 104 56.5 - 129 Surr: Toluene-d8 96.9 64.5 - 151 Surr: 1-Bromo-4-fluorobenzene 94 7 54 8 -168 Sample Moisture (Percent Moisture) Percent Moisture Revision v3 9.61 0.500 mg/Kg-dry 1 8/30/2018 4:22:00 AM mg/Kg-dry 1 8/30/2018 4:22:00 AM %Rec 1 8/30/2018 4:22:00 AM %Rec 1 8/30/2018 4:22:00 AM Batch ID: 21789 Analyst: CR mg/Kg-dry 1 8/31/2018 10:40:41 AM mg/Kg-dry 1 8/31/2018 10:40:41 AM mg/Kg-dry 1 8/31/2018 10:40:41 AM mg/Kg-dry 1 8/31/2018 10:40:41 AM mg/Kg-dry 1 8/31/2018 10:40:41 AM %Rec 1 8/31/2018 10:40:41 AM %Rec 1 8/31/2018 10:40:41 AM %Rec 1 8/31/2018 10:40:41 AM Batch ID: R45790 Analyst: NG wt% 1 8/29/2018 9:08:02 AM Page 11 of 31 IlFmmont Analytical Report Work Order: 1808332 - -- _ Date Reported: 9/17/2018 Client: PBS Engineering & Environmental Collection Date: 8/27/2018 12:20:00 PM Project: Mirror Lake Elementary Lab ID: 1808332-011 Matrix: Water Client Sample ID: ML-01-W Analyses Result RL Qual Units DF Date Analyzed Diesel and Heavy Oil by NWTPH-17x/Dx Ext. Batch ID: 21763 Analyst: SB Diesel (Fuel Oil) ND 499 pg/L 1 8/30/2018 10:46:43 PM Heavy Oil ND 99.8 pg/L 1 8/30/2018 10:46:43 PM Surr: 2-Fluorobiphenyl 91.8 50 - 150 %Rec 1 8/30/2018 10:46:43 PM Surr: o-Terphenyl 85.4 50 - 150 %Rec 1 8/30/2018 10:46:43 PM Volatile Organic Compounds by EgA Mpthgd 8260C Batch ID: 21786 Analyst: KT Benzene ND 1.00 pg/L 1 8/31/2018 12:24:13 PM Toluene ND 1.00 pg/L 1 8/31/2018 12:24:13 PM Ethylbenzene ND 1.00 pg/L 1 8/31/2018 12:24:13 PM m,p-Xylene ND 1.00 pg/L 1 8/31/2018 12:24:13 PM o-Xylene ND 1.00 pg/L 1 8/31/2018 12:24:13 PM Surr: Dibromofluoromethane 96.8 45.4 - 152 %Rec 1 8/31/2018 12:24:13 PM Sum Toluene-d8 100 40.1 - 139 %Rec 1 8/31/2018 12:24:13 PM Surr: 1-Bromo-4-fluorobenzene 96.4 64.2 - 128 %Rec 1 8/31/2018 12:24:13 PM Revision v3 Page 12 of 31 LL W O IL o _ w LLJx a. rn Q 5 N Z O U A > Cl CD V C cc d U) o 0 E 1! 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Z Z Z N a) N C c 2 L Fd m es- w E M c 0 .y fNN— U I.I. Q O N 00 IL -0 + WN � � C Q a 5 W G � N CC .) C a C G 0 0 v L O r O N y-+ C a) E C O > C W c C N E C N � W N N .0 Y ccn C� J CO W 00 cn 0 O m co d G7 'O 0 H r+ Z v L W 3 � a` m a E J CV d n c co n a aODo a Z Z o c Q Of (n > d Of IL w w 0 0 N N M M E J LO CO L _m a) N = N fa CL w E a T 3 cp O C J Q U w 0 J 1 � N > C (D Y IL a) 2 co CL U) Of co CL O0 n ❑ N m � CL ❑ O. U CO n m IL ❑ a N N M 0o F o Q � � m CL E cu 6 U) U Q 0 co O O O O N m m a7 M N v '7 N v v coco LO — CO 0) m 0) O O (D 0 0 0 0 LO LO N N N O ❑ m m N Z v M v N N N m E co n co v a°Do ❑ a O O � Z Z o c Q Of (n N > Of n m r NCD N M M E W W L _m lU a7 CL N E N 'y J EL T i O J Q U w 0 J 1 � N � C a) Y a a) Y a En Of w a0 _ n N � � � N � a) � >, O G U m m U) 00 �SjU! O N N 2 M V C F o Q aro m CL E a) cc (n U Q O n o LO O N m m �2 :� V r r �2 �2 V: N l0 M W 7 N ccoo w0 0v v w Ih ` N w w 0 0 v o � o O 0 O O O 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 N N N v N N N N O O O O O O O O O O v M v N 7 7 n m M N It n M cn M LO N N N v N N N N N C O N C fCCISa) L L � o O O 7 O O m W:-0 o m oc E a) o (D a) a o CO () cc O H a) a) C O a) T C .. .. .. N (U c ? t CL X U) U) in m f-- w E 6 0 E J ❑ o) a A w of co a m ❑ d O O � Z Z o c Q CD Of m ca ❑ EL 0 0 o E M M J co CO L _m N N _ f0 C) n w E 2 w 3EL —' cq O C —) Q U w 0 J S � q > 'C a) Y d U) i Y a w J Of 40 v7 n •. N N a) � T ❑ O U E (� 00 N N N2 CO H o Q ao m ❑ (D 0 d CL C E a) m (U Q M O Lo N O O O O O m M M M M M a m N O O O O O O O 'It M N N N (O v 0 O CD N CO M m a0 n fo u'� O N m m �2 :�t �2 �2 �2 N v N Ul M CO v N 0� coo m v 0 v m o m 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 N N N It N N N N O O O O O O O O O O N N m c0 •1' n N N N It N N N N a) c (D a) C c L n O O O 7 O 4 O CO 4 c o E c E a) O a) o ch aci m o m > a) c m d❑ F C C N CDA a) -06 C ` ` t al O 2 N c> aXlntocn 7 7 7 > m Fc- w E 6 w m m d C7 O C)O O 0 'E E m m m m m iD o rn a L o aoco of n W aco coo ❑ a m ❑ 0 0 0 0 z z o z z o cr c D_ �n U) Wo 0 0 0 0 0 CD w ❑ ❑ co0o CD co co CD CD 0 N N N N o E o E aD 00 L 00 m L O) _0 2 2 w a) w N fa fO fa fa n w E n w E a) 'y J N 'y J d 2.1 0 C J Q Q W W Q' LC 0 0 J J I S a S N w w CC ❑ ❑ Y Y EL 0- U) U) m a) > > w > Y Y EL a m U) CC C: C N E o cc A C W O rL N 2 � j (0 T ❑ ca C N n E L V rn c E a) a) cn m m N W N C � N C JCO N m O O °�° N N N F L: d ado � Q m O ❑ Y Z W d °� n 0 a) O J E m 3 U a co b < J I c—,O C-)O O Q O O O O O 0 0 0 � � N v a Lo O N r V LL7 m m m 0 0 0 O o 0 ui LO ui N N N 10 a ao � n � ❑ ❑ ❑ ❑ ❑ v, u� m O N Z Z Z Z Z N N N T ❑ Q U E .- co m m m a) a c C Ccc C a) O 4 0 ° N 2 :3 CO m F O N O Q E c E ro m w o m o ❑ N C L O m a) c m w ❑ Q7 Q) C w a) �, C L: n C N a) L X a) 7 > > E w m c o L a X to CO U)in U Q m C,w E 6 LL O +' Cy Cl a 0 co � E N E N O C CIL p Qa a IS d ccCl) a co 0 03 }% vco z z o z° z o � p r � cr m y 0� U) Ir U) N o C)2 > CD CO > � o CL E ❑ ❑ N m m 0 co m 0 0 N N w 0 N N +- 01 N Of N N N E J CO W L M W CO t O N N = N N = f6 (O E [C N E a a w ' 3 n w m 0 o C Q J C Q J W w 0 0 e e q > y w Y d Y d rn cn m m i > Y a Y a J O J O 0 O O N C N CD OI E a a I O � p ry o > L, C CL W ID T ❑ ❑ E (V cc CA CY] m cc m ` -e r: 0 rn m a a N C J > > co WO C/i Q Q 1! p °° m a ` so 4 .- 0 4 L: � 00 o C co o M m JCD � N ao g w o f j.; O .0 2 O .0 g - LLJ O J n E m a�i n E m m 3 V L- a rn d cJ C a rn a� U ¢ a Fremont Sample Log -In Check List Client Name: PBS Work Order Number: 1808332 Logged by: Brianna Barnes Date Received: 8/27/2018 3:57:00 PM Chain of Ctustod 1. Is Chain of Custody complete? Yes ❑d No ❑ Not Present ❑ 2. How was the sample delivered? Client Log In 3. Coolers are present? Yes ❑d No ❑ NA ❑ 4. Shipping container/cooler in good condition? Yes 0 No ❑ 5. Custody Seals present on shipping container/cooler? Yes ❑ No ❑ (Refer to comments for Custody Seals not intact) 6. Was an attempt made to cool the samples? Yes ❑./ No ❑ 7. Were all items received at a temperature of >0°C to 10.0°C* Yes ❑d No ❑ 8. Sample(s) in proper container(s)? Yes No ❑ 9. Sufficient sample volume for indicated test(s)? Yes No ❑ 10. Are samples properly preserved? Yes No ❑ 11. Was preservative added to bottles? Yes ❑ No ❑� 12. Is there headspace in the VOA vials? Yes ❑ No ❑� 13. Did all samples containers arrive in good condition(unbroken)? Yes ❑./ No ❑ 14. Does paperwork match bottle labels? Yes No ❑ 15. Are matrices correctly identified on Chain of Custody? Yes No ❑ 16. Is it clear what analyses were requested? Yes No ❑ 17. Were all holding times able to be met? Yes 0 No ❑ 5 2ecial Handling ff applicable 18. Was client notified of all discrepancies with this order? Person Notified: I By Whom: Regarding: I Client Instructions: F 19. Additional remarks: Item Information Item # Temp °C ;Cooler 1.5 {Sample 1.6 'Temp Blank �.1 Not Required ❑d NA ❑ NA ❑ NA ❑ NA ❑ Yes ❑ No ❑ NA W Date Via: ❑ eMail ❑ Phone ❑ Fax ❑ In Person * Note: DoD/ELAP and TNI require items to be received at 4°C +/- 2°C Revision v3 Page 28 of 31 x S : • H 'W V Q� ll� A �+ iN I'S r1 p N % 1 o .it _ S a �i6 1 J j ^ V A Tr Cy N.� m s D —�- o a= l� Er i is m w o �.rif — S D elf�,, a�If R c r ` O 7n Ev{� 00 `L.l a i o Op 9 _ 1 OO I _ � n j w 3 3 •�• "�� 1 DC '�` �C € i I d m d g Ego a x..x� IXIw w' (x i f 3 3 i 3 � f 'tl V T. " w Ln w D .fir N w a r�r� 1 e_. o �_Ev x �" E 3 i a u i fD z Eo 50� j 1 3 Ew ? L m 4,-- j••a 1 7 }a fa c IF i -°� Z ` Iif 3 � '� t e a o � �• �j17 i a E A� m CL iti9�a I ' o 7 E w s a F4� �r1•• �7a '•.8J 11 � F zS1•ri s ^, p v n� � m c a ewe ] 3 3 mQ j g � g �} roo R^ i = 8 O �i• _ 8 3 E a i d N c � A E 1' �= 'per• M s dq In 3 O O w IV`❑ a m N 3 '7; c o X a 3 a Q ocu or n R T A ^' Page 29 of 31 C) x x a coi a a Q � � � 3 x �� � �� �! N nep ^j_ED [[ D NAPly S v. 3 a e i n ff 0 ee n o iV fb v OQ ] 3 ro r3 o e 1 w a p� d N m u n x t it A D O 1 t- w w » 2 3 r } Pi ui D o i N N V'10 to C aq _ o -'• � a l y cr C x @ x a m �_ G s� E ! O r r I n + d• m x B�rEa �y0 s�s1ro��' i 1 eT l ! ss CL o 7 V\ go c. d f FQ�SrCi.� cr i <V A I ° d m a 3 3 � o m o43 m T < c Do N N m N :C C G w V O (• R N o A o co m 3 ❑ ❑ ❑ d fD N z N W V1 O c 0 m N N v v d c .e a a x 3 'IQ CL v � o N Page 30 of 31 ' c c 0 =j o 0 ton d 1s y - (� I � � F za t €W �� =� A C c y � m :� �_ � � � •M 1_ � 1 � re � �71 1� I [ [i pWQ� LM N co i�W CO OJo O W F `�' _ I ib FS ib a � _ zi• �P >�j ij ik ilr2• �•Jo d m a �PJ , f r•� i_ ion T�-.tF�f UN_ -4� m 1 j CL//� R { i 1 ' V i v+ 1 .y N 1 fD r It o ¢ TQ a a ry O O O d G r a L. Page 31 of 31 ►4ttachment C Toxicity Equivalence Calculations for Carcinogenic PAHs (cPAHs) _ O O a ° E U O a L7 a) V) C d 0O —O CAM CD i N _ C (U M c > a cn C U) �- E c W O i? E OU C 0 = U .x co Q = QC) U Rw a) L fn C1 Q L 003-0 C G ,F d d) O C C L 3-00 '> w C OCD' N N 0) L O +. 01.0 a0 O N O t1S C ` E ti m C) N cl a9 m N O M O O 7 7 901 v C fn U U O O U O U L > U 5-C a) L a' U C 7 m a) Q U 0 0 L Q) Q a) Q fU— a) �' iC L m +L 0-0 O V r ' 3 m U aoowoQ>O3 � � U > LL J 0 C N W N m M-0 M i co H ao -0 0 N CD w F_ OU O Q E O N .E 2 ¢ LL F- a) M M M M M M M M— O O O O O O O O O O O O C 0 0 0 g 6 6 w Ln q f4 O O N - C 7 C O m W U a0 a0 c0 ao W a0 c0 J PM M M M M f`M M M C O O O O O O O N O o 0 0 0 0 0 o W c � O -heU C O O) C C U — — O O O O CD U c m O' W W U O O m LL a) J O_ a) a) a) C c a)) aa)) 0 >1 c a U CD w C -o Q a) m C L c M fp C U a) L O O c9 m t A C O O O_ M � � L N N m N L Y C S— O O O O O N O N N N N U C C C C ~ .0 L L L U "O .E M a) to 7 u) C O m C U C O U ui E a) C_ O Q O m O mf5 9 y a) � N N o a) � U C O O C N Q N N3 O) U) c o) = Q O �e a Q U O C O N O O) O E c m O U 0 U m E O C Z a) O) u] O a) E z m