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19-101684-SMCITY OF �� Federal Way PUBLIC WORKS DEPARTMENT STREET MODIFICATION REQUEST /ACTION Project Name The Woodlands at Redondo Creek Subdivision Permit # 19-105072-00-SU; 19-101684-00-SM Location Pacific Highway S / S 30e St Request The applicant is proposing to eliminate the center turn lane within the west 270 feet of frontage. The Woodlands at Redondo Creek is a proposed 68-lot subdivision at the corner of Pacific Highway S and S 304th Street. As part of this plat, the applicant is required to improve S 304th Street to the planned Type "K" cross-section for a distance of approximately 550 feet. This will include a 9-foot right-of-way dedication and construction of an 8-foot sidewalk, 6-foot planter strip, streetlights, street trees, curb, gutter, and road widening to a minimum of 22-feet on the north side of the road (6' bike lane, I through lane, 6' half -center turn lane). Staff Analysis Due to a stream, wetlands, and steep slopes along the west 270 feet of the property frontage, the applicant requests a reduced cross section to minimize significant grading. They propose to do this by eliminating the center turn lane requirement. The traffic analysis indicates that the traffic from this plat will not warrant a turn lane at the entrance to the plat, and will not warrant an extension of the 100-foot turn lane at the intersection of Pacific Highway S and S 304th St. Staff agrees that a center turn lane is nwarranted at the time of project completion, which is projected to be 2021. The City forecast considers impacts out to 2040, which anticipates increasing volumes at the intersection that will necessitate additional storage length up to 500 feet. Therefor staff does not recommend eliminating the center turn lane. However, to minimize intrusions into the wetland, staff does recommend eliminating the planter strip for the length of the development as allowed by FWRC 19.135.070(2) Unusual topographic or physical conditions preclude the construction of the improvements as required. Requirements / Conditions of Approval The developer is required to dedicate 9 feet of right- of-way and construct street improvements to include streetlights, handrail where necessary, 8- foot sidewalk, curb, gutter, and road widening to provide a pavement width of 22 feet. Staff Recommendation Development Services Reviewer Development Services Manager Traffic Division Reviewer Traffic Division Manager Deputy Director Director Decision Concur with Staff Analysis Initial Date .��ZD t7 l Z 0 Yes No Q` ❑ P" ❑ ❑' ❑ Er�' ❑ RECEIVED OCT 232019 CITY OF FEDERAL WAY COMMUNfTY DEVELOPMENT October 22, 2019 Mr. EJ Walsh, P.E. Public Works Director City of Federal Way 33325 8th Avenue S Federal Way, WA 98003 RE: Right -of -Way Modification and Improvement Waiver Request The Woodlands at Redondo Creek Dear Mr. Walsh: Job No. 1352-023-019 Please accept this letter as our revised request for a modification of street standards for a portion of South 304th Street as provided in FWRC 19.135.070 - Modification, Deferments and Waivers. Specifically, we are proposing to modify the improvements where a two-way left turn lane is not warranted. The subject property includes 21.85 acres to be subdivided into,58 single-family lots. The primary proposed access will come from the existing 2011' Avenue South that extends from South 3041h Street, with a secondary access point adjacent to 201h Avenue S and S 3001h Street. The project site abuts Highway 99 (Pacific Avenue) and South 304th Street. The ROW dedication and frontage improvement requirements are due to an element of the Comprehensive Plan that depicts a 3-lane east -west principal collector road extending from Pacific Avenue to Military Road, to accommodate a Type "K" street with a 78-foot ROW. ESM previously submitted a ROW Modification Request dated April 9, 2019, requesting a reduction of right-of-way improvements along the subject site's entire frontage of S 304th Street. Excerpted from the previous request: 'The proposed improvements include providing a 12' drive path from the existing road center line in addition to 0.5' for curb and gutter Additionally, a 5' sidewalk from the edge of curb will be provided for non -motorized uses An additional >' foran approved handrail will be provided as required between the sidewalk and wetland, where elevation begins to slope down from the roadway. This equates to an approximate 0.57 - 1.5' expansion of improvements that provides for safe vehicular and pedestrian paths " Civil Engineering Land Planning 33400 8th Ave S Ste 205 Tel (253) 838 6113 Everett (425) 297 9900 Federal Way. WA 98003 Fax (253) 836 7104 Toll Free (800) 345 5694 Land Surveying Landscape Architecture www esmcivii.com 3D Laser Scanning GIS Mr. EJ Walsh, P.E. October 22, 2019 Page 2 Preliminary feedback from City Staff included a desire to evaluate the potential need for the center turn lane both now and in the future. Despite the highly unlikely scenario of future turning movements occurring along the road segment spanning the wetland area on both north and south sides of S. 3041h, it was agreed that prudent analysis would include looking ajMrn-poc et r e_an(Ltaper requirements for potential left turn lanes at both the intersection at 201h Avenue S. aq�Pacific 1-1wy Formal study b these potential future design " -features was included in the Traffic Impact Analysis performed -by Traffex and confirm that a center turn lane can be omitted from the ser�rrient spwhileprovidinor requisite turn -pocket storage and taper.at the two intersections either side. Proposed Street Improvement Modification This modification request proposes tg dedicate the -re ired 9' width to public right-of-way and a reduction of right -af--way improvements along a portion of the subject site's frontage of South 304th Street. The proposed improvements include providing the standard half -street improvements for most of the site's frontage of S 3041h Street, including half (6) two-way left turn lane,1 l' travel lane, 5' bike lane, 6' planting strip, 8' sidewalk and 3' utility strip. These improvements will begin from the western edge of improved 201h Avenue S to where the turn lane tapering begins, approximately 100' west towards SR 99. The two-way left turn lane tapers for 180' westward, where the left turn lane is then completed. All other street improvements are proposed to be provided for the remaining approximately 265' of street frontage. Please refer to the Preliminary Plat Plan Set and Traffic Impact Analysis included with the Preliminary Plat submittal. Modification Request Justification We are requesting to modify street improvements along the South 304th Street right-of-way due to the following justifications: FWRC 19. >35.070(l) The improvement 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. South 3041h Street is currently improved with an approximately 24' roadway with shoulders along the corridor between Pacific Hwy South and Military Road South. Except for the subject site and the property across the right-of-way (fully encumbered by critical areas), all parcels of land are fully developed according to the current zoning and land use designation established by the City of Federal Way. The approximately 550' of subject frontage improvements makes up less than 5% of the specific South 304th South corridor. That said, it is highly unlikely that any additional future development will provide Type K right-of-way dedications or improvements elsewhere in the corridor. Mr. EJ Walsh, P.E. October 23, 2019 Page 3 A left turn lane warrant analysis was performed for eastbound to northbound left turns from S 3041h Street to 201h Avenue S by Traffex. They determined that future conditions, including subject project volumes, will not warrant a left turn lane at the time of project completion. However, full Section K half -street improvements are provided with the proposed project to facilitate future construction of the turn lane once south side ROW dedications and improvements are made with future projects, if any. As referenced from the Traffic Impact Analysis provided by Traffex, page 5, "Assuming that ultimately there will be a left turn lane warranted on S 3041h both at 20th [Ave] S and also at SR 99, the site frontage widening would need to allow for ... future left turn lanes and associated tapers." The recommended tapering configurations for both 20th Avenue S and SR 99 are described on page 5. Ultimately, the extents of needed left turn lanes and their tapering do not overlap the portion of the subject site near the onsite wetland. 2. FWRC 19. >35.070(2) Unusual topographic or physical conditions preclude the construction of the improvements as required. A forested wetland encumbers the subject site close to the edge of the property abutting South 304th Street. This wetland is an outfall of drainage from Steel Lake that requires a buffer of 150'. While the existing conditions of the proposed 9' right- of-way dedication into the wetland buffer is permanently altered due to previous ROW improvements and stormwater infrastructure (as noted in the Critical Areas Report provided by Sewall Consulting), narrowing the frontage improvements and retaining mature vegetation as proposed will minimize impacts to the critical area. As noted, the applicant of this preliminary plat requests modification of improvements along South 3041h street frontage, where a two-way left turn lane and is not warranted and the frontage with tapering associated with the proposed turn lane. We look forward to working with you through the City's review and approval process and would welcome the opportunity to discuss this request at your convenience. Should you have any questions, or require additional information, please contact me at (253) 838-6113. Sincerely, ESM CON,$ULTiNG ENGINEERS, LLC. %iN EVERETT ' anning Director Enc: As Noted cc: Dmitriy Mayzlin (w/enc) Ilesm8lengrlesrn jobs11352102310191documentlletter--006.dou JR-101(ny-sm April 9, 2019 Mr. EJ Walsh, P.E. Public Works Director City of Federal Way 33325 81h Avenue S Federal Way, WA 98003 RE: Right -of --Way Modification and Improvement Waiver Request Danilchik Plat (19-101438-00-PC) Dear Mr. Walsh: 7111.M ♦-01 Job No. 1352-023-019 AP17 0 9 2019 CoMMU% taE0EFAL WAy DEVELOPMEW Please accept this letter as our formal request for a modification of street standards for a portion of South 304th Street as provided in FWRC 19.135.070 - Modification, Deferments and Waivers. Specifically, we are proposing to reduce the improvements where critical areas and existing infrastructure would be impacted. As you may already be aware, the associated preliminary plat proposal has not yet been formally submitted to the City of Federal Way. However, after reviewing a previous pre - application comment letter prepared by the City (18-101382-PC), a determination from Public Works states that a 9-foot right-of-way (ROW) dedication and full street improvements along the property's frontage to South 3041h Street are required for the proposed land development. The subject property includes 21.88 acres to be subdivided into 63 single-family lots. The proposed access will come from the existing 20th Avenue South that extends from South 3041h Street. The project site abuts Highway 99 (Pacific Avenue) and South 3041h Street. The ROW dedication and frontage improvement requirements are due to an element of the Comprehensive Plan that depicts a 3-lane east -west principal collector road extending from Pacific Avenue to Military Road, to accommodate a Type "K" street with a 78-foot ROW. The subject property and property directly across from South 304th Street (tax parcel # 092104- 9012) are the last pieces of undeveloped property along this road section. However, South 3041h Street road section improvements are consistent for the entire corridor between Pacific Hwy South and Military Road South. Proposed Street Improvement Modification This modification request proposes to dedicate the required 9' width to public right-of-way and a reduction of right-of-way improvements along the subject site's frontage of South 3041h Street. Everett (425) 297 9900 Civil Engmeei ing Land Planning 33400 Bth Ave. S. Ste 205 Tel (253) 838 6113 Federal Way. WA 98003 Fax (253) 838 7104 Toll Free (800) 345 5694 Land Surveying Landscape Ai chilectui e www esmciviL com 3D L aser Scanning GIS Mr. EJ Walsh, P.E. April 9, 2019 Page 2 The proposed improvements include providing a 12' drive path from the existing road center line in addition to 0.5' for curb and gutter. Additionally, a 5' sidewalk from the edge of curb will be provided for non -motorized uses. An additional 1' for an approved handrail will be provided as required between the sidewalk and wetland, where elevation begins to slope down from the roadway. This equates to an approximate 0.5' - 1.5' expansion of improvements that provides for safe vehicular and pedestrian paths. Please review the included Proposed Cross -Section Exhibit included with this submittal. Modification Request Justification We are requesting to modify street improvements along the South 304th Street right-of-way due to the following justifications: FWRC 19.135.0700) The improvement as rerluirocl 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. South 304th Street is currently improved with an approximately 24' roadway with shoulders along the corridor between Pacific Hwy South and Military Road South. Except for the subject site and the property across the right-of-way (fully encumbered by critical areas), all parcels of land are fully developed according to the current zoning and land use designation established by the City of Federal Way. This road corridor is "built out". That said, it is highly unlikely that any additional future development be providing Type K right-of-way dedications or improvements elsewhere in the corridor. The approximately 550' of subject frontage improvements makes up less than 5% of the specific South 304th South corridor. Keeping in mind that the remaining 95% of the corridor is unlikely to ever be built, a full standard Type K section in this location would be an island of overbuilt road adjacent only to unbuildable areas with extreme transitions to match/connect to existing improvements. Neither side of South 304th in this location requires on -street parking or center turn lane due to the existing wetlands, lack of access due to topography/critical areas and the proposed project layout of the Danilchik Plat. Mature streetscape vegetation currently exists on both sides. The expansion of the existing road prism to accommodate Type K section planter strips would require the removal of mature trees and replace them with small caliper street trees. When placed next to the existing road section and in this particular location bisecting a mature forested wetland, the Type "K" road section consisting of a 44- foot street with curb and gutter, 6-foot planter strips and 8-foot sidewalks will not be harmonious with the existing street improvements, nor would they function property or safely for both motorized and non -motorized users. o FWRC 19.135.205.6(c) Complete Streets, Exceptions: Where the cost of accommodation is excessively disproportionate to the need orprobable use. Mr. EJ Walsh, P.E. April 9, 2019 Page 3 Similarly, the intent of the Complete Streets code section is to provide accessible and safe roads for motorists, bicyclists, transit users, freight, emergency responders and pedestrians of all ages and abilities. The 550' length of an additional 8' roadway (for turn -lane or parking serving no one) and a misaligned sidewalk, all terminating at both ends of the property frontage, provides a less safe access environment for drivers and pedestrians alike. To best address provisions for safe school walkways, the project proposes a pedestrian path located on the northwest portion of the site, connecting from the internal development to Pacific Highway that currently provides standard sidewalks and cross walks for students attending Federal Way High School. 2. FWRC 19.135.070(2) Unusual topographic or pl)yslcal conditions preclude the construction of the improvements as required. Based on the City of Federal Way's GIS system and verified with a wetland consultant, a forested wetland encumbers the subject site to the edge of the property abutting South 304th Street. This wetland is an outfall of drainage from Steel Lake that requires a buffer of 165'. By narrowing the site improvements as proposed, impacts to the critical area can be avoided and mature streetscape vegetation retained. A Type K width road section would require filling of regulated wetlands and the securing of an US Army Corps permit, the issuance of which is by no means guaranteed. East of the wetland and buffer, the property rises steeply above the existing road with an elevation difference of approximately 20'. The project plat layout was designed to minimize significant grading of the site where possible. The proposed right-of-way improvements ensures pedestrian safety while minimizing impacts to either wetlands or existing slopes and avoiding excessive retaining wall installation. Railing or fencing adjacent to top of slope is proposed where appropriate or required for pedestrian safety. Finally, both water and sewer utility main lines run along South 304th Street under or near the existing road pavement. By providing the proposed improvements, impacts to the existing utility infrastructure can be avoided. As noted, the applicant of the 19-101438-00-PC and future preliminary plat of the subject site requests modification of improvements along South 304th street frontage to reduce critical area impacts and provide safe vehicle and pedestrian routes. The following are included with this request: 1. Request and Justification (this letter); 2. Proposed Cross -Section Exhibit; 3. Proposed ROW Improvements Exhibit; 4. Street Modification Request payment of $334. Mr. EJ Walsh, P.E. April 9, 2019 Page 4 We look forward to working with you through the Citys review and approval process and would welcome the opportunity to discuss this request at your convenience. Should you have any questions, or require additional information, please contact me directly at (253) 878-5125. Sincerely, ESM CON LTING ENGINEERS, LLC. N EVERETT Planning Director Enc: As Noted cc: Dmitriy Mayzlin (w/enc) I les m8leng rles m-jobs11352102310191documentlletter-002.docx M:\PROPOSAL\2019\American Classic\Danilchik\GIS\Danilchick_ROWlmprovements.mxd Date: 4/8/2019 User: SavannaN EXISTING CONDITIONS 049057 '^ Y: 09210491.96 � 1 0421 UTILITIES Sewer Water °92 1049012 Storm Drainage Line as° Stormwater Pipe 1 tll�_L_'-' A PROPOSED IMPROVEMENTS S 304TH STREET CORRIDOR " AMERICAN CLASSIC HOMES 2016 WESTERN KING COUNTY LIDAR Projection: Washington State Plane North DAN I LC H I K PLAT Vertical Datum: NAVD88 (GEOID03) Horizontal Datum: NAD83 (HARN) ESMCIVILCC]i:,.:. -^ ROW IMPROVEMENT EXHIBIT Units: US Survey Feet WAC 332-130-145 TOPOGRAPHIC SURVEY NOTES AND GIS DATA SOURCE: Although Careful techniques are used In The purpose of this map is to provide a conceptual site plan feasibility exhibit and/or basemap. Contours depicted hereon are derived from Bare Earth Digital creating and displaying GIS data, ESM Elevation Models provided by the Puget Sound LiDAR Consortium. The LiDAR is tested at a 95% confidence level, or 0.172ft. Contour interval is 2-foot. This cannot guarantee accuracy of the is not a boundary survey and contains non -surveyed data. Property boundaries provided by King County GIs (2018).Other GIS layers and data provided by information contained on this map. the City of Federal Way 20181. p S. 304TH ST. CROSS SECTION 1 " =8' M O N N O \ I � 0 Lo I �� r2z7) L,OU SOUTH 60' EX. R/W NORTH 9 PROPOSED u R/W , Q O 30' R/W 30' I DEDICATION ' z O0 z Z�wuj APPROX. OF EX. ASPHALT ' mow Q ~ a w 1' HANDRAIL I i5't 12' 7 12' 0.5' AS REQUIRED 4' t 5' 7.5' STREET TREES EX. ASPHALT SHOULDER °$ PROPOSED SIDEWALK J — PROPOSED VERTICAL CURB A& PROPOSED CROSS SECTION SCALE" 1 "=8'