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13-105135cirr of �-- Federal Way MEMORANDUM Community & Economic Development DATE: February 13, 2014 TO: John Mulkey — Public Works CC: Ann Dower —Development Services Tony Doucette — S WM FROM: Matt Herrera — Planning Di uOrl-14 SUBJECT: Technical Comments/Required Corrections for PANTHER LAKE TRAIL & AMENITIES -Planni ig Division Comments — See Matt Herrera for uesfionS/Clarificafion Site Plan To avoid the need for future incidental land use permits, indicate where future buildings (gazebo and children's play area) will be located on the site plan. Community Design Guidelines —Public parks are required to meet applicable design guidelines pursuant to Use Zone Chart 19.200.160 1 • The proposed parking lot contains rows in excess of 10 adjacent stalls in conflict with guideline 19.115.0900)(h), which stipulates stalls should be broken up into rows containing no more than 10 adjacent stalls separated by planting areas. Also see note 4 in landscaping_ 2. Lighting is required in all loading and circulation areas pursuant to 19.115.050(7). A lighting plan meeting the specification of the Illuminating Engineering Society (IES) for the parking Io# and other active areas such as the restroom and paths in the vicinity of the parking area will be needed. Additionally, guideline 19.115.090(1)0) limits the lighting fixtures to 20 feet in height with cutoff shields for offsite and wetland buffer area glare reduction. 3• One of the restroom building examples listed in the suppl90(1)(n) will require the restrooement Of Potential items and equipment packet contained a roof pitch of3:12. Guideline 19.115.0m building and gazebo to appear to have a roof pitch ranging from at least 4:12 to a maximum of 12:12. 4. The pedestrian driveway crossing is shown as a city ROW standard of raised asphalt with paint striping, which is in conflict with guideline 19.115.050(4)(b). Approved methods of delineation include stone, brick or granite pavers; exposed aggregate; or stamped and colored concrete. 5. Pursuant to guideline 19.115.050(4)(e), outdoor furniture, fixtures, and streetscape elements, such as pedestrian level Iighting, benches, tables and trash receptacles should be incorporated into the site design. Landscaping — Site Design Guideline 19.115.050(5) requires the following landscaping improvements 1. A landscape plan prepared by a landscape architect licensed in the state of Washington, a nursery professional certified pursuant to the Washington Certified Nursery Professional program, or a Washington State certified landscape technician n 91�prepared4far appiicablehe corrections below. notes and details to add Please review general landscaping requirements to the landscape plan and irrigation plan if necessary. rn end of 2_ Alb -foot -wide Type III perimeter landscaping is re erred purip suant to RS zvnthe eing district dlandscaping e parking lot and ending at the park's eastern parking q requirement 19.1225.460. Type III pond eter oundcoverpAgis a mixture of se�ion and. plan view fspeen acir�g�slshown in uous trees interspersed with large shrubs gr. FWRC 19.125.050(3). b 3. As the parking areas are adjac eberms to P least three feet in height; ora lterna lively add substantial landscaping strip to incorporate shrub plantings to the required perimeter landscape type, and/or provide architectural features of appropriate height with trees, shrubos and reduce then isual �unpaet of parkingin a number cient to act as areas and screefficient substitute for the three-foot berm, automobiles. 4. 19.125.074(2) and (3) requires internal Type IV parking lot landscaping in the amount of 20 square feet per stall to be provided in bulbs, islands, and/or row dividers in sizes between 64 and 305 square feet. Type IV landscaping description with a plan and section example can be found in 19.125.050(4). 5. With the exception of lawn areas, at least 25 percent of new landscaping materials (i.e., plants, trees, and groundcovers) shall consist of drought -tolerant species per 19.125.040(6). All developments are encouraged to include native Pacific Northwest and drought -tolerant plant materials for all projects. 6. All permanent lawn or sod areas shall have permanent irrigation systems per 19.125.040(21). Wetland Buffer (informational — no correction needed) A modification of the requirement set forth in 19.120.100(1)(b) that limits artificial slopes to 33 percent will be approved for proposed engineered slopes of 2:1 and in excess of six horizontal feet within the wetland buffer. The modification will reduce grading impacts to existing habitat. 11--. —+e _ Ripe Ann Dower far uestiunslClariifica#ion Technical Information Report Section 2: Core Requirement 41: 1. Explain where drainage from the parking lot area originally flowed and will flow once the project is completed. Core Requirement #3: 2. This project is subject to Conservation Flow Control Standards. Panther Lake is not approved to provide detention for any new development, including this project. Doc. I.D. 65011 13-105135 I Core Requirement #8: 3. This project is within an Enhanced Basic Treatment Area and is required to meet that standard. Please revise the statement at the top of page 7. Section 4: 4. NRSC is not approved for flow control calculations. Please provide KCRTS calculations. Section 8: 5. A sediment trap is required for the new parking area, unless section D.3.3 of the King County Surface Water Design Manual (KCSWDM) will allow only perimeter protection to be used. Please explain how it meets the criteria in D.3.3, or provide a sediment trap design. Exhibit 2: Drainage Exhibit 6. Please show the proposed flowpath and label the discharge point for the parking lot runoff. Attachments: 7. Please provide attachments. Plans 1. Runoff from the trail will need to be dispersed per the KCSWDM. Show how vegetation and slope requirements are met for this option. Sheet 32: 2. The new 48" pipe needs outlet protection (see KCSWDM). 3. In the parking lot, provide callouts for easternmost catch basin and 8" PVC pipe. 4. Show how dispersion requirements are met for the trail near the proposed parking lot and parking lot access road (see KCSWDM). Sheet 34: 5. The sand filter for the parking lot must be a large sand filter with required presettling, or equivalent treatment from the Enhanced Basic WQ treatment menu in the KCSWDM. 6. Used vaned grates for proposed catch basins. 7. Explore opportunities for BMP's for the proposed parking lot. Per section 5.2.1.2 of the KCSWDM, full dispersion must be implemented if feasible. uantities: 8. The quantity of 8" PVC for the trail seems off; none included for the parking lot. 13-105135 Doc. I.D. 65011 ECEIVE® i'o -i 14 2013 CITY OF `� Federal Way CITY OF FEDERAL WAY CDS APPLICATION NO(S) _ Project Name Pc K �kzr �oi.4 (9 f evt Property Address/Location a Tr,_'. 1 MASTER LAND USE APPLICATION DEPARTMENT OF COMMUNITY DEVELOPMENT SERVICES 33325 8'h Avenue South Federal Way, WA 98003-6325 253-835-2607; Fax 253-835-2609 www.citvoffedara1wa-y.com 2 S 0 �: CAD Date Parcel Number(i) Z t H— 9 0 0 3 Project Description nc. % _ V_ 0 r 0 c, �� i� l! J7!� PLEASE PRINT 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) _ Process III (Project Approval) }( Process IV (Hearing Examiner's Decision) Process V (Quasi -Judicial Rezone) Process VI r SEPA w/Project SEPA Only Shoreline: Variance/Conditional Use Short Subdivision Subdivision Variance: Commercial/Residential Required Information S39, D Zoning Designation Comprehensive Plan Designation Value of Existing Improvements e — Value of Proposed Improvements International Building Code (IBC): Occupancy Type Construction Type Applicant Name: -Yol— K'&e.9 Address: '43325- rd*`A- s City/State: federa.1 W°`Y it"14 Zip: 99003 Phone: z.s 3- gfS -LzzZ Fax: Ls?�83S-Z7O� Email: Signature: Agent Agent (if different than Applicant) Name: Address: City/State: Zip: Phone: Fax: Email: Signature: Owner Name: C;+y of ('e Jej.l W,, y Address:;33Z S' 0'"A- e s City/State:�e,vl Zip: 9 50d 3 Phone: s5 - 935Z7 7 Z Fax: Email: Signature: Bulletin #003 — January 1, 2011 Page 1 of 1 k:\Handouts\Master Land Use Application CITY OF Federal Way DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT 33325 8th Avenue South Federal Way WA 98003 253-835-7000; Fax 253-835-2609 www.citvoffedero.twdy.com DECLARATION OF DISTRIBUTION I',I -A r-- � �. �; 4 � hereby declare, under penalty of perjury of the laws of the State of Washington, that a: ❑ Notice of Land Use Application/Action ❑ Notice of Determination of Significarce (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 Interpretatbn ❑ 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 Pemit ❑ Adoption of Existing Environmental Document was 0rnailed ❑ faxed Xe-mailed and/or ❑ posted to or at each of the attached addresses on 2014. Project Name % �� f File Number(s) ) ?�-ob S l 5 Signature Date K:\CD Administration Fles\Declaration of Distdbution.doc/Last printed 1 /22/2014 2:40:00 PM NOA/DNS and Environmental Checklist to the following agencies: )EPT OF ECOLOGY 3NVIRONMENTAL REVIEW SEC 'O BOX 47703 )LYMPIA WA 98504-7703 5epaunit@ecy.wa.gov ;OUTH KING FIRE & RESCUE ;1617 1sTAVE S FEDERAL WAY WA 98003 .hris.inghamsougfu e.org gordon.goodsell@southkingtire.org LARRY FISHER (freshwater) BRIAN ASBURY WDFW AREA HABITAT BIOLOGIST LAKEHAVEN UTILITY DIST 1775 12TH AVE NW STE 201 PO BOX 4249 ISSAQUAH WA 98027 FEDERAL WAY WA 98063 larry.fisher@dfw.wa.gov basbury@lakehaven.org BRANDON REYNON PUYALLUP TIU13E OF INDIANS HISTORIC PRESERVATION DEPT 3009 E PORTLAND AVE TACOMA WA 98404 brandon.re non a a11u tribe.com LAURA MURpHy TRIBAL ARCHAEOLOGIST MUCKLESHOOT INDIAN TRIBE 39015 172ND AVE SE AUBURN WA 98092 laura.murphy@muckleshoot.nsn.us 'lease CC email notice to rnatt.herrera ci offederalwa .com; ann.dower r�7ci offederalwa .com; ton .doucerte ci offederalwa .com Rub Tamara Fix From: Tamara Fix Sent: Thursday, February 06, 2014 12:03 PM To: 'ECY RE SEPA UNIT'; 'Fisher, Larry D (DFV1n'; 'basbury@lakehaven.org'; Gordon Goodsell; 'brandon.reynon@puyalluptribe.com';'laura.murphy@muckleshoot.nsn.us' Cc: Matt Herrera; Ann Dower; Tony Doucette Subject: Panther Lake Trail & Amenities NOA & Opt DNS Attachments: Panther Lk NOA + Opt DNS pkt.pdf Attached is the NOA and Opt DNS and revised SEPA checklist for the Panther Lake Trail project. This is being issued on February 7, 2014, and the Associate Planner for the project is Matt Herrera, 253-835-2638, matt.herrera@citvoffederalway.com. l O FYOF Federal Way NOTICE OF MASTER LAND USE APPLICATION AND OPTIONAL DETERMINATION OF NONSIGNIFICANCE (DNS) Project Name: Panther Lake Trail & Amenities Project Description: Proposed construction of paved loop trail around Panther Lake and 41-stall surface parking lot. Additional improvements that will be phased as capital budgets allow include restrooms, gazebo, children's play area and other park like amenities. Portions of the trail and park improvements are within regulated wetland buffers and will be mitigated by enhancing the remaining buffer. Applicant: John Mulkey, City of Federal Way — Public Works Department Project Location: 650 SW Campus Drive, Federal Way, WA 98023 / Parcel 1921049003 Application Received: November 15, 2013 Determined Complete: February 6, 2014 Notice of Application: February 7, 2014 Environmental Review: Based upon review of a completed environmental checklist, and other information on file with the city, it is likely that the Responsible Official will determine that the project will not have a probable significant adverse impact on the environment and expects to issue a Determination of Nonsignificance (DNS) for this project. The optional DNS process in WAC 197-11-355 is being used. This may be your only opportunity to comment on the environmental impacts of the proposed project. The proposal may include mitigation measures under applicable codes and policies. Additionally, the review process may incorporate or require mitigation measures regardless of whether an environmental impact statement (EIS) is prepared. A copy of the subsequent threshold determination for the specific proposal may be obtained upon request. Agencies, tribes, and the public are encouraged to review and comment on the proposed project and its probable environmental impacts. Environmental comments must be submitted by the date noted below. Permits Under Review: Use Process III (File #13-105135-UP) and State Environmental Policy Act (SEPA) Threshold Determination (File #13-105136-SE) Existing Environmental Documents & Required Studies: Final Wetland Inventory Report (July 19, 1999); Stream Inventory (November 29, 2001); Geologic Hazards Map IX-5 (October 2006); Technical Information Report; Critical Area Study; Geotechnical Report; and Environmental Checklist. Development Regulations Used for Project Mitigation: Federal Way Revised Code (FWRC) Title 14, `Environmental Policy;" 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 or the environmental impacts of the proposal to the Director of Community and Economic Development by 5:00 p.m. on February 24, 2014. Only persons who submit written comments to the Director (address below) or specifically request a copy of the decision, may appeal the decision. However, any interested party may appeal the environmental threshold determination. Details of appeal procedures for the requested land use decision will be included with the written decision. Issuance of Final Environmental Determination: The final Determination of Nonsignificance (DNS) may be issued without a second comment period, unless timely comments identify probable significant adverse impacts that were not considered by the Notice of Optional DNS. A copy of the DNS may be obtained upon request. Availability of File: The official project file, existing environmental documents and required studies are available for public review at the Community and Economic Development Department, 33325 8th Avenue South, Federal Way, WA 98003 Staff'Contact: Matthew Herrera, Associate Planner - 253-835-2638 Doc I D. 64964 Map Date: City of 300' Notification Ar. for GCity of isDivsion lWay Gis Division 33325 Bth Ave S. Federal Way p p Federal Way 00 98003 Panther Lake O en S ace (208)-835-70 www.dftyoffederalway.com LL 1 r e� f 50 L . sw �seTx sr CL rl �.��7Ty GT SW .Qy°1 + 4 1 11W.arrM ue Panther Lake Open Space SW CAMPUS.UI?_ Park - r SNgt y .- ��a� 8kvj,",$T SW 346TH ST r � 1 ...J �V�VaM Subject Site Tax Parcels Notified King County Tax Parcels a'g _ ~ SUM CA A ,;. SECEI M1 S Y I� Panther Lake CD Elem. G 1, Nav 42013 ' a rrry nG cFIIFRAL WAY v Cf�S CITY OF ® 300' Notification Area N AFederal Way 0 150 300 This map is intended For use as a graprmal representation only, Feet The City of Federal Way makes now wanty as to its axuracy. T )MAV-OD-008-L W0:)-AJaAe'MMM 1322020570 MARTIN RICHARD 25623 33RD AVE S KENT WA 98032 1322030010 EQR - R E TAX DEPT 27130 PO BOX 87407 CHICAGOIL 60680 7298050330 PLESS CURTASHLEY 33524 4TH AVE SW FEDERAL WAY WA 98023 7298050590 HAM KI YOUNG 33535 4TH AVE SW FEDERAL WAY WA 98023 1322020460 BLOOMER WILLIAM H+SHERIAN D 199 RAINBOW DR LINT 9987 LIVINGSTON TX 77399 1821049036 FEDERAL WAY CITY OF PO BOX 9718 FEDERAL WAY WA 98063 7298040260 LEE YOUNG M+LEE THERESA 767 SW 337TH ST FEDERAL WAY WA 98023 KIM SUZIE+PARK JOHN 751 SW 337TH ST FEDERAL WAY WA 98023 BEKELE SELAMAWIT Y 3435 S 164TH ST SEATAC WA 98188 GETTMANN JEFFREY 14013 110TH PL NE KI RKLAN D WA 98034 7298040290 1322020280 ,Wdn-dOd paogaa al aalanaa ivawa6aeLp ap sues ap ui}e ainpeq el a zaildaa - 7298050560 HANSEN KRISTEN N 405 SW 336TH CT FEDERAL WAY WA 98023 7298040320 DANG HUA+LIU TAO 733 SW 337TH ST FEDERAL WAY WA 98023 1322020310 TRACHT TOM 2971 53RD ST SE AUBURN WA 98092 1322020400 EYNON ANA LUCIA 23107 14TH DR SE BOTHELL WA 98021 9269100050 BORJA JOEL S+INOS ELAINE A 33840 7TH WAY SW FEDERAL WAY WA 98023 7298050530 ASINAS JIMMYA+ELAINE R 33624 5TH PL SW FEDERAL WAY WA 98023 1321700020 SEBASTIAN MARK J+JANET S 480 SW 345TH ST FEDERAL WAY WA 98023 7298050220 CASUMPANG ROLANDO C+ROWENF 33635 5TH PL SW FEDERAL WAY WA 98023 1322020600 MCCOLLUM CATHERINEA PO BOX 150 MONMOUTH BEACH NJ 07750 T @09L5 ®Ab3AV ipege6 al zaslliin salad a salpel sallanbl13 1921049047 FAIRFIELD GLEN PARK LLC Attn: ATTN: TAX DEPT #1667 5510 MOREHOUSE DR #200 SAN DIEGO CA 92121 1322020340 HOFF RUSSELL J 3068 MAJESTIC VIEW WALK LEXINGTON KY 40511 7298050300 WHITE DIANE 1 33604 4TH AVE SW FEDERAL WAY WA 98023 1322020490 HARRIS CALVIN+CHARLENE 34029 1 ST PL S FEDERAL WAY WA 98003 7298050250 HONDA BRUCE G+SUSAN L 33714 4TH AVE SW FEDERAL WAY WA 98023 7298040300 WOOD SHANNON J 745 SW 337TH ST FEDERAL WAY WA 98023 1322020380 MOHSINE HICHAM 203 168TH AVE NE BELLEVUE WA 98008 1322020290 KOZAK MR & MRS 19 S 338TH PL FEDERAL WAY WA 98003 1322020640 PAK'S CIRCLE OF FRIENDS 30 S 342ND PL FEDERAL WAY WA 98003 1322020430 1322020370 1321700050 RAKHRAGURBACHAN S+GURBACHi OH JUNG SOON 7849 17TH AVE 450 SW 345TH PL BURNABY BC CANADA V3N 1 M1 000, FEDERAL WAY WA 98023 I w,a6p3 do-dod asodxa 009LS a}eluwal @AJDAV aso i of aau swore oua4 s�agLZ ear] ,use AHMV-OD-008-L W0:)'/GaAe'MMM 9269100030 HASHEMIARDESHIR+MAHTAB 33832 7TH WAY SW FEDERAL WAY WA 98023 1322020580 RAKHRA GURBACHAN S+GURBACH) 7849 17TH AVE BURNABY BC CANADA V3N 1M1 000, 7298040330 HUNZIKER MARLYS 33730 4TH AVE SW FEDERAL WAY WA 98023 7298050280 MULLEN GERALD 33620 4TH AVE SW FEDERAL WAY WA 98023 1322020550 SMITH FAMILY TRUST Attn: SMITH PHIL & JULIA PO BOX 98 ACAMPO CA 95220 1322020230 CUNNINGHAM MARY V 11419 264TH AVE E BUCKLEY WA 98321 7298050310 NUTTER JAMES A+KRISTINE E 33540 4TH AVE SW FEDERAL WAY WA 98023 1322020440 MILLER BRYON 337 MISSION RD WALLA WA 99362 1322020350 DINA INVESTMENT GROUP LLC 2330 OLYMPIAAVE NE RENTON WA 98056 1322020520 LAYTON SHERI 6313 25TH ST NE TACOMA WA 98422 T ,Wdn-dod paoga.l al aalanaa luawa6ieq:) ap sues ap ui;e aingnq el a zaildaa IT 1322020260 LAM RONALD W+YOULING LIAO 5322 S 282ND WAY AUBURN WA 98001 7298050340 HONG KI AM & TERESA HYE 33518 4TH AVE SW FEDERAL WAY WA 98023 1322020410 HUNG WINIFRED 3184 INGERSOLL PL FREMONT CA 94538 7298040270 ANDERSON KIRK+MARY 763 SW 337TH ST FEDERAL WAY WA 98023 9269100060 KING COUNTY -PROPERTY SVCS Attn: ADM-ES-0800 500 4TH AVE SEATTLE WA 98004 7298050540 DILLMAN GARY+BARBARA 33634 5TH PL SW FEDERAL WAY WA 98023 7298050290 HUGHES ROGER P 33610 4TH AVE SW FEDERAL WAY WA 98023 1322020210 GAO HONG+RUSTY DESCHENES 1102 YAKIMA AVE S SEATTLE WA 98144 9269100070 FEDERAL WAY CITY OF PO BOX 9718 FEDERAL WAY WA 98063 1322020500 ONEKEATHOMAS K JR& KAY M L 11314 LOMA PL SW LAKEWOOD WA 98499 @09LS ®AHIAV i€.mge6 al zasluin aalad a saline} sauanbl.3 7298050320 GUNDERSONJOSEPH+DONNAA 33532 4TH AVE SW FEDERAL WAY WA 98023 1322020240 STAHL GLENN M+AGNES L 45 223 HAUNANI PL KANEOHE HI 96744 7298050600 FEDERAL WAY CITY OF PO BOX 9718 FEDERAL WAY WA 98063 1322020390 ARMSTRONG ROY LEE 34002 1ST CIR S UNIT C FEDERAL WAY WA 98003 1322020470 DARIC PROPERTIES LLC 16707 SE GREEN VALLEY RD AUBURN WA 98002 9269100040 LE HA DUYEN 3519 LINCOLN AVE NE RENTON WA 98056 7298050230 BLOCKI DAVID J+KAYA 33708 4TH AVE SW FEDERAL WAY WA 98023 1322020360 ONEKEATHOMAS K JR+KAY M L 11314 LOMA PL SW LAKEWOOD WA 98499 FENNESSEY DAVID B 2166 MAINE AVE LONG BEACH CA 90806 WONG PETER JONATHAN 33731 1 ST PL S FEDERAL WAY WA 98003 1322020590 1322020270 T @09LS aleldwal ®daanV asl ! n09LS nAM79AW l`J`'// 1 slace1 .1,3ad Ase T AHMV-OD-008-L i w0:)'AJ9Ae'AolMAA 1322020700 T,Wdn-dOd paOgai 91 JalaAaa ap ui}e ainy:)ey el a zapdaa juawa6.ie4a T ap suas 7298040340 @09LS ®A?J '. ; "qe6 aI zesili n aaj3ci 7�i)pej sallanbil= 7298050270 PANTHER LAKE HOA 14240 INTERURBAN AVE S #212 TUKWILA WA 98168 7298040280 KIM HYE KYUNG 757 SW 337TH ST FEDERAL WAY WA 98023 1321700030 CHI WON K+YOUNG S 470 SW 345TH PL FEDERAL WAY WA 98023 9269100010 HARRIS BOBBY L+HARRIS CHRIS 8435 50TH AVE S SEATTLE WA 98118 1322020560 FENNESSEY DAVID B+MARY L 2166 MAINE AVE LONG BEACH CA 90806 1921049004 FEDERAL WAY NAT' LIT LEAGUE Attn: PO BOX 214 1911 SW CAMPUS DRIVE FEDERAL WAY WA 98023 7298050260 TALBOT MAURICE P+DOROTHY B 33706 4TH AVE SW FEDERAL WAY WA 98023 1322020300 LAMOUREA JAMES+CORA 17335 187TH PL SE RENTON WA 98058 1321700060 KRAHNER W PAUL 440 SW 345TH PL FEDERAL WAY WA 98023 WEISZ RANDY L 33720 7TH PL SW FEDERAL WAY WA 98119 ROSE YUNI 33625 5TH PL SW FEDERAL WAY WA 98023 7298050210 1322020250 WASHBURN HENRY E+SHARON L 28037 SE 231 ST ST MAPLE VALLEY WA 98038 1322020420 NAYOUNG YUL+NAMHYO NA 3906 S 322ND ST FEDERAL WAY WA 98001 1322020540 GOELANIL KUMAR 422 SW 352ND ST FEDERAL WAY WA 98023 7298050550 DANIELSON DALE+JODI 33609 4TH AVE SW FEDERAL WAY WA 98023 1921049051 KING COUNTY -PARKS Attn: ADM-ES-0800 500 4TH AVE SEATTLE WA 98004 7298050240 LEE JERRY 455 WISNOM AVE SAN MATEO CA 94401 1322020510 CAMPBELL MARK L+BRENDAA 23604 126TH AVE SE KENT WA 98031 1322020530 1321700040 SCHILZ PETER M HELMER CHRIS 1605 SW MILLER CREEK RD 1911 SW CAMPUS DR #354 SEATTLE WA 98166 FEDERAL WAY WA 98023 DINH PHUC+VU TRANG 33630 4TH AVE SW FEDERAL WAY WA 98023 1322020480 LATHAM JAMES EQUIVALENT EXEMI 31010 39TH PL SW FEDERAL WAY WA 98023 7298040310 ALLRED KEITH J+JOANNA C 739 SE 337TH ST FEDERAL WAY WA 98023 1322020220 PALISOC TEODULFO+ADORACION 5224 VERSAILLE CT ORANGE CA 92867 1322020450 DECKER MONICA L+MATTHEW S 3838 WALNUT AVE LONG BEACH CA 90807 1322020650 RUIZ VICTOR+KIMBERLY 520 208TH AVE E LAKE TAPPS WA 98391 1921049041 LAKEHAVEN UTILITY DISTRICT PO BOX 4249 FEDERAL WAY WA 98063 9269100020 QUEROL MARIA THERESA C 33828 7TH WAY SW FEDERAL WAY WA 98023 1a6p3 do-dod asodxa mom..iaded Paaj ca ault 5UO12 Ouasa w T ®09L5 a;e;dwas OAJgAV a5j siaom _laaA Ase: TECHNICAL MEMORANDUM Date: November 8, 2013 To: Don Helling, Huitt-Zollars, Inc. From: N. Lund, PWS Project Number: 100607 2 FIB. C 0 1'0 ]'ANY WATERSHED Subject: Panther Lake, Northeast Wetland & Drainage Course Delineation Study Study Area To replace a portion of an out-of-date and potentially obsolete delineation, a drainage course and wetland delineation study was conducted in the northeast corner of Panther Lake Park in the City of Federal Way (Parcel No. 1921049003). Methods Public -domain information on the subject properties was reviewed for this study. Fieldwork was conducted on September 13, 2013 by Fisheries Biologist, Sarah Sandstrom and Ecologist, Nell Lund. The study area was evaluated for wetlands using methodology from the Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region Version 2.0 (Regional Supplement) (US Army Corps of Engineers [Corps] May 2010). The wetland boundary was determined on the basis of an examination of vegetation, soils, and hydrology. The wetland boundary within the study area was marked with pink- and black -striped flags. The delineated wetland was classified using the Western Washington Wetland Rating System (Ecology, Aug 2004, version 2) RECEIVED 750 Sixth Street South Kirkland. WA 98033 p 425,822.5242 f 425.827.8136 watershedco.com 142013 CITY OF FEDERAL WAY CDS The Watershed Company Technical Memorandum November 1, 2013 Page 2 (Rating System) and the City of Federal Way Revised Code (FWRC) section for wetland categories. Only the wetland boundary within the study area was delineated for this project. A previous delineation of the entire wetland system was conducted by Brown and Caldwell during the winter of 1991-1992. The ordinary high water mark (OHWM) of the drainage course was determined based on the definition provided by the Washington Department of Fish and Wildlife and WAC 220-110-020(69). The OHWM is located by examining the bed and bank physical characteristics and vegetation to ascertain the water elevation for mean annual floods. Areas meeting the definition were marked with blue - and white -striped flags. Field observations were used to classify the drainage course according to the FWRC. OHWM and wetland flags were surveyed by Huitt-Zollars. Figures showing the flagged boundaries are depicted on engineering plan drawings and mitigation plans for the Panther Lake Open Space Trail and Park Improvements Project, 85% Submittal, October 16, 2013 (85% submittal). Findings A drainage course and a portion of the Panther Lake Wetland were delineated under this study. Drainage Course According to city maps, drainage course flow originates from a wetland north of Panther Lake. The drainage course then flows into Panther Lake before continuing south into the West Hylebos Wetlands via a lengthy culvert system which is a total anadromous fish migration barrier. At high water levels, water also enters an engineered infiltration system, which is also a total migration barrier. The drainage course, labeled 0014B-1 on city maps, has been altered over time by development and regional stormwater management; it does generally convey natural flows from higher to lower elevation. Federal Way defines streams in FWZC 19.05.130 as follows: "Stream" means a course or route, formed by nature, including those which have been modified by humans, and generally consisting of a channel with a bed, banks or sides throughout substantially all its length, along which surface waters naturally and normally flow in draining from higher to lower elevations. A stream need not contain water year-round. In a development, streams may run in culverts or may be channeled in a concrete, rock or other artificial conveyance system. This definition does not include irrigation ditches, stormwater facilities or other artificial watercourses unless they are used by resident or anadromous salmonid The Watershed Company Technical Memorandum November 8, 2013 Page 3 fish, or the feature was constructed to convey a natural stream which existed prior to construction of the watercourse. Those topographic features that resemble streams but have no defined channels shall be considered streams when hydrologic and hydraulic analyses done pursuant to a development proposal predict formation of a defined channel after development. Per an April 19, 2013 email between Larry Fisher of Washington Department of Fish and Wildlife and the City of Federal Way, WDFW will not require an HPA for a potential future bridge replacement project because drainage 0014B "is such a minor water course and there are no fish present anywhere in this system (although we normally would require an HPA if fish were only downstream or present), and there is no actual instream work needed to replace the pedestrian bridge..." Panther Lake Wetland The drainage course flows into Panther Lake just south of an existing footbridge, that remains in place. Panther Lake is approximately 12-acres in size. Lakes less than 20-acres are regulated as depressional wetlands. The National Wetland Inventory website maintained by the US Fish and Wildlife Service identifies Panther Lake as having seasonally flooded palustrine forested, semi - permanently and temporarily flooded palustrine emergent, aquatic bed and open water wetland areas. Per the City of Federal Way Critical Areas Map, a 1998 City wetland survey identifies Panther Lake as a wetland. Per FWRC 19.175.020 the City of Federal Way classifies wetlands as Category I, II or III based on set characteristics, including presence/absence of listed species, habitat complexity, total size, and connectivity to fish -bearing streams. The Panther Lake wetland contains Palustrine forested, scrub -shrub, emergent, and aquatic bed vegetation classes. Wetlands, such as this, with three or more vegetation classes that include open water are classified as Category I. Category I wetlands in Federal Way require a 200 foot buffer (FWRC 19.175.20). Proposed trail impacts and mitigation Several sections of the trail will be moved and widened and a new parking lot will be built per the 85% plan submittal, dated October 16, 2013 by Huitt- Zollars. Improvements causing new, permanent impacts in the wetland buffer will be mitigated at a 1:1 ratio in the form of invasive weed removal and revegetation with native plants. Temporary impacts are also planned associated with clearing and grading within the buffer. These are not considered permanent impacts since they will not be part of the parking lot or new trails. These areas are currently forested with a variety of native trees, shrubs and groundcovers and also varying amounts of invasive weeds (blackberry). Temporary impacts are generally permitted provided it can be The Watershed Company Technical Memorandum November 1, 2013 Page 4 shown they are unavoidable, minimized to the extent feasible and revegetated to a forested condition through the implementation of a mitigation plan. Panther Lake Open Space City of Federal Way Supplement of Potential Items and Equipment for Panther Lake Open Space January 3, 2013 Submitted By: Prime Consultant: Huitt-Zollars, Inc. CITY OF �' -- RECEIVED Federal Way NOV 14 2013 CITY OF FEDERAL WAY CDS Panther Lake Portfolio Federal Way, Washington Table of Contents Huitt-Zollars, Inc. PLAYGROUND EQUIPMENT (2 -5 YEARS OLD)...............................................................................................3 PLAYGROUND EOUIPMENT (5 -12 YEARS OLD) .............................................................................................5 SWINGSET..................................................................................................................................................................8 RESTROOM................................................................................................................................................................9 GAZEBO....................................................................................................................................................................12 BRIDGEUPGRADE.................................................................................................................................................13 PARKSIGNS.............................................................................................................................................................15 PARKAPPURTENANCES......................................................................................................................................16 January 3, 2013 Panther Lake Portfolio Federal Way, Washington Playground Equipment (2 -5 years old) Gametime Climber's Nook Model Number: 19209 Price: $16,529.00 Galvanized Price: $16,289.00 Use Zone: 29' 6"x 31' 9" Fall Height: 5' Age Grou s: 2 to 5 Years Number of Children: 40-45 Huitt-Zollars, Inc. Rock Climbing Wall Vw Wide End Balance Beam Arched Chain Net s Bongos ; P 4 Way X-Pod - Step sa(1 Climbing Wall Entry 'Way Single Gizmo a. Panel w/ " , Maze Wheel )d Rocker Clover G eivrative ::. Leaf Panel A Climber iti Ly, Zip Slide Transfer Platform w/ Barrier January 3, 2013 3 Panther Lake Portfolio Federal Way, Washington Gametime Tectonic Model Number: 95045 Price: $23,948.00 Galvanized Price: $23,782.00 Use Zone: 36' 7"x 32' 8" Fall Height: 4' Age Groups: 2 to 5 Years Number of Children: 35-40 Sloped Funnel Zip Slide Climber (Barrier) Deco Thunderring Ridge Panel X Climber Crunch Bar'-, River Rock fNor Climber n riisr, (2) Modern Square Roof Bongos Double (Below) Zip Slide Huitt-Zollars, Inc. Schooner Climber Single Gizmo Panel --•- — Single Gizmo Therapeutic Panel Rings (Below) Transfer Platform w/ Barrier January 3, 2013 4 Panther Lake Portfolio Federal Way, Washington Playground Equipment (5 -12 years old) C—.-timP Aawlr's Ne-d Model Number: 85144 Price: $31,652.00 Galvanized Price: $31,470.00 Use Zone: 39' 6"x 45' 1" Fall Hei ht: 8' Age Grou s: 5 to 12 Years Number of Children: 45-50 MA.N'S NUT 95144 ROG V aim Y NOIRWTAL t,,LOOP LAOOFOW ATTAOYEIT)��e1�o $,��Vss4� 4iE �A3RY19E AMO ROLL zw we _ ' A=M ARAC11F71TLl 8" TRANSFER R T ODM FLF IME vim Huitt-Zollars, Inc. OMwf SAT {B0.C1ty p,'Ayja XX 'ALL Mmom 'tzl January 3, 2013 5 Panther Lake Portfolio Federal Way, Washington Gametime Fitness Trek Model Number 19208 Price $33,515.00 Galvanized Price $32,790.00 Use Zone: 49' 0" 36' 7" Fall Height j 8' Age Groups 1 5 to 12 Years Number of Children 1 65-70 AstroRail 'Cruise Rails Decorative Triangle Transfer I Panel Platform Ah, r...�—.. Huitt-Zollars, Inc. Zip Slide Single Gizmo Panel w/ -Arch Bridge Click Wheel w/ Barrier Rail Leaning Rail Singte Gizmo [Below] Panel W/ Echo Chamber Maze Wheel flRidge Seat Transfer System w/ Guardrail (1' Rise) Zip Slide January 3, 2013 6 Panther Lake Portfolio Federal Way, Washington Gametime Vietory Model Number: 95006 Price: $3 6,197.00 Galvanized Price: $35,989.00 Use Zone: 491111391 1" Fall Height: 8' Age Groups: 5 to 12 Years Number of Children: 1 50-55 Huitt-Zollars, Inc. SK-N'BOYBV ELIDE J ( OBSERV nOR STATION 9NME PO PANEL ENTfl YWAI 99QQ (euueoauy _ 7AWytll 4�S7 CfgNpN�M OOUBLE TAUt NBE g'3 Ala. . e - B,fii0 i9�O92 .1GP7 ( MVER Tr9 1NBER GLMBM ENTRYWAY ( BONGOS (5100 January 3, 2013 7 Panther Lake Portfolio Federal Way, Washington Swingset Huitt-Zollars, Inc. Not shown in plans. Possible alternate or addition to playground equipment. T January 3, 2013 8 Panther Lake Portfolio Federal Way, Washington Restroom Example restroom from Public Restroom Company. Designed for maximum 90 users per hour. Huitt-Zollars, Inc. INdO'NM-LLOWiNO6-VOkO6VO-0.SNVld OtlHOMC1SUdOddnS1N3d-LWOIS30Jtldl'l\Stl30Wd3lId N`JISDUOIS30 LFZ m' J � SSA Nl z w t JNIC]Iina.4--G4 —I _ rLl� f ' r L I z ` t zl ---------------J L1J 7 U W U) w Lu U January 3, 2013 9 Panther Lake Portfolio Federal Way, Washington Examples of restrooms from various Puget Sound park locations. Metropolitan Park District of Tacoma McKinley Park (Installed 2008) Stewart Heights (Installed 2008) • Lincoln Eldridge Park (Installed 2008) • Vassault Park (Installed 2008 Huitt-Zollars, Inc. January 3, 2013 10 Panther Lake Portfolio Federal Way, Washington City of Bremerton • Lions Park #1 (Installed 2010) Lions Park #2 (Installed 2010) City of Lakewood Fort Steilacoom Park (Installed 2011) Quadrant Homes in DuPont. DuPont Powder Works Park (Installed 2007) City of Shoreline Kayu Kayu AC (Installed 2009) -� ,a mo- LIONS PARK Huitt-Zollars, Inc. DUPONT POWDERWORKS PARK January 3, 2013 11 Panther Lake Portfolio Federal Way, Washington Gazebo Gazebo from Gary Grant Park, Kent, WA, owned by King County Parks. Installed in 1990. Huitt-Zollars, Inc. January 3, 2013 12 Ah 9-A P.- fff� y ' OWAMOMwo- r r■: ■ �' Dash Point Highlands Park saa0 SW 3I4th Place i •� The following park rules wore deveiopad to anhartca ,y the experienda and safety of your visit: .' r _ . parer afoot era hom Dawn to Duxk. - • P•is muff W en a laoser ne rongar M. 2p loot al an ljro i Ml1 n.wv control. owntm am..Awfsd to ramova pat walls- Y r Alt OaN and 4JIemP1tk animals am pmhrh{tad from pity WAY grounds, btacnea and -pots 50ld& . Tha toltawtao namf O! ac tlrnF.• are Ptltltnluld: Fi(e § A. • l �•'•,`• Weapons. Ambom Sprig. non. Golf, Campfl-,L RtCohnrlc Q r- 9•vo-m. Controlled suMo'.G" Or anything Olio that 1y�l/' —1 cauaa harm to park Pa trolll • No mitred ron+cfa� In daslgnat•d area- only. r �; �� . 4.ewcdw er ramoral o! v■0.taden .nd pa,* rtepar*r Is prehl!!Jppd Preaes Po d, mpdoo of home garbags . / •� OVI_ • P-rmin are raqulrad for ape[iy enlnq m large picnic groups. F :•�`;'. �+ ` �� ■ f 4 Trail Loup 4BPATrail ; rOc.ral way RaiF d ceds park Oapt. 253t33`.r87iW 4- 91h Ave •j Cr�apin a,a3 +-o• Emwgd. y otal 911 l 3 Soccer Field Rules: Resarva l fens Requ l ted- NO unse heduled fayor } r praclVCu. Calf W31835.6900 fer Geld avallaeillty k' • No dogs or damask. animals allowed. ^ • No gott bikes or unauthorized use. • Na tobacco products with 25' of held, • No batting/safthall practice allowed. Panther Lake Portfolio Federal Way, Washington Park Appurtenances Various items to be placed around park 1 Huitt-Zollars, Inc. January 3, 2013 16 DRAFT TECHNICAL MEMORANDUM Date: October 17, 2012 To: Don Helling, Huitt-Zollars, Inc. From: H. Mortensen PWS Project Number: 100607 Subject: Panther Lake Wetland Evaluation WATERSHED Scope Per our June 1, 2012 proposal to Huitt-Zollars, this memo relates the findings of a literature review of supplied historic wetland information and publically available aerial photos, review of Federal Way Revised Code (FWRC) 19.175.3 (a- f) and the findings of an October 3, 2012 site visit to Panther Lake. Background review An April 19, 1993 wetlands assessment technical memorandum by Brown and Caldwell Consultants (BCC) detailed the findings of a wetland delineation study conducted during the winter of 1991-1992. It appears the purpose of the study was to disclose wetland conditions in support of the proposed Panther Lake Flood Control Facility, which was subsequently constructed according to 1994 as - built drawings. A lengthy explanation of the various federal delineation manuals in use in the early 1990's is included although the exact manual used is unclear. The vegetation section on page 4-11, implies the 1989 federal manual was used. This BCC study described wetland conditions that are not substantially different from present day conditions with the exception of increased surface water fluctuations and changes in the wetland boundary as noted below. The study indicates wetland conditions on the site formed shortly after the last glaciation, roughly 13,000 years ago. BCC cites personal communication with an early landowner who relates Panther Lake was a duck hunting pond as early as the 1940s. The 1936 aerial photo (iMAP) clearly shows a shallowly -inundated open water wetland area consistent with the hunting pond description (Figure 1, page 2). The wetland in this early photo is remarkably similar in approximate size and character to the present day condition, given the land use change in the intervening seven decades. One portion that has changed is an increase in the open water wetland area at the southwest corner, presumably constructed as part of the drainage channel entering the site at that location. 750 Sixth Street South Kirkland, WA 98033 p 425.822 5242 ! 425 827 8136 watershedco corn RECEIVED N 0 V 14 2013 CnY OF FEDERAL WAY CDS W The Watershed Company Draft Technical Memorandum October 17, 2012 Page 2 Per the City of Federal Way Critical Areas Map, a 1998 City wetland survey identifies Panther Lake as a wetland. The National Wetland Inventory (NWI) website maintained by the US Fish and Wildlife Service identifies Panther Lake as having seasonally flooded palustrine forested, semi -permanently and temporarily flooded palustrine emergent, aquatic bed and open water wetland areas (Figure 2, page 3). Figure 1: 1936 Aerial Photo User Remarks: The Watershed Company Technical Memorandum October 8, 2012 Page 3 100607-NWI PantherLk National Wetlands Inventor bap 1. Ln] Wetlands E.w.rca ane Vnru GMwb. E wre�hne �E nAr Figure 2: NWI Map of Panther Lake Local Regulations The City of Federal Way regulates wetlands according to the FWRC. Specifically FWRC 19.05.230 defines wetlands as ... those areas that are inundated or saturated by surface or groundwater at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions. Wetlands generally include swamps, marshes, bogs, and similar areas. This is consistent with federal and state definitions of a wetland. Federal Way also regulates wetlands according to three categories listed in FWRC 19.175.020. Based on recent fieldwork observations, Panther Lake meets the Category 1 definition due to the presence of three or more wetland classes, one of which is open water. During our fieldwork we identified that five wetland classes are present: open water, aquatic bed, emergent, scrub -shrub and forested. As with most local municipal jurisdictions, Federal Way exempts certain drainage facilities from regulation as jurisdictional wetlands provided such facilities meet certain criteria as detailed in FWRC 19.175.010, repeated in italics below. We have included a brief statement, in boldface, regarding Panther Lake for each of the following criterion below. The Watershed Company Draft Technical Memorandum October 17, 2012 Page 4 (3) Drainage facilities. Surface water ponds, drainage ditches, and other such facilities which were designed to impound or convey water for an engineered purpose are not considered regulated wetlands under this division provided they meet all of the following criteria: (a) The drainage facility must have been intentionally human -created. This is to differentiate from those wetland sites that are accidental consequences of development actions, such as road construction or culvert placement. Such sites may be considered regulated wetlands by the director upon a review, under subsection (2)(g) of this section, of the ecological functions and values of the site. The dam on the south side of Panther Lake and the drainage channel in the southwest corner were intentionally human -created. (b) The drainage facility must have been originally constructed on uplands (nonwetland areas). If the drainage facility is located within a straightened, channelized, or otherwise disturbed natural watercourse, it may be considered a regulated wetland by the director upon a review, under subsection (2)(g) of this section, of the ecological functions and values of the site. Based on several sources, Panther Lake had clear wetland conditions (hydrology, hydric soil and hydrophytic vegetation) prior to conversion to a drainage facility. For example, the BCC study and historic aerial photos document the presence of a wetland in this location prior to dam construction. Despite the presence of historic wetland conditions, the original boundary appears to have changed. It appears these changes are due, at least in -part, to construction of the drainage facility. See pages 5 and 6 for additional information. (c) The facility must be actively operated as a surface water drainage facility. Abandoned drainage facilities may be considered regulated wetlands by the director upon a review, under subsection (2)(g) of this section, of the ecological functions and values of the site. Panther Lake dam, outfall and infiltration standpipe appear to be actively monitored and maintained and are not abandoned. (d) Wetland conditions have not expanded beyond the originally constructed drainage facility boundary. In such a case, the expanded area may be considered a regulated wetland by the director upon review, under subsection (2)(g) of this section, of the ecological functions and values of the site. Wetland conditions have not expanded beyond the boundaries of the Panther Lake dam. The Watershed Company Technical Memorandum October 8, 2012 Page 5 (e) The drainage facility was not designed or constructed as a requirement to mitigate previous wetland impacts. Panther Lake is not known to be a compensatory mitigation site for wetlands. (f) The director finds that limited ecological functions and values do not warrant application of the city's wetland regulations. The wetland receives high water quality, hydrologic and habitat function scores on the Washington State Wetland Rating Form. The BCC memo also describes significant wetland functions at Panther Lake in 1991/1992. Current Wetland Boundary The Watershed Company undertook a field reconnaissance of the wetland boundary in August 2010 and more recently in October 2012. None of the original flags were found, therefore, the boundary comparison was done comparing present day wetland boundary observations to the map in the 1993 BCC memo. Both site visits noted differences in the wetland boundary compared to the map included in the 1993 BCC memo. Areas with noted differences are shown on the attached map. Differences in the boundary are most pronounced in the southwest corner of the wetland. In this area, the boundary is much more complicated and also encompasses more wetland area than shown in the BCC delineation figures. There are other minor areas of discrepancy, particularly at the stream in the northwest corner and the west side of the nearby beach area. These discrepancies are due to several factors, each of which is listed below: 1. Methodology. Delineation methods from the early 1990's have changed. After the BCC study, most jurisdictions and agencies reverted to use of the 1987 federal delineation manual. More recently, the Corps issued clarification to the 1987 manual in the form of regional supplements to improve the accuracy and documentation of delineations. Current requirements rely on use of the Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys and Coast Region (Corps 2010). Methodology. The BCC delineation study placed widely -spaced wetland boundary flags. According to the map, flagging intervals around the lake are about 100 feet with a few near 200 feet long. Current standards have typical flagging intervals of less than 50 feet with flags as close as 20 feet where boundaries are complicated. 3. Time. The BCC wetland delineation fieldwork is 20 years old. Wetlands are transitional environments that change over time due to natural variability in The Watershed Company Draft Technical Memorandum October 17, 2012 Page 6 weather and climate, changes/succession of flora and fauna use (beaver), and, most importantly, human -induced land use changes on the broader landscape. For these reasons, the Corps and many other agencies typically require new wetland delineations for areas covered by studies that are five or more years old. 4. Facility. Conversion to a drainage facility and possible subsequent changes in management/maintenance appear to have resulted in water surface fluctuations. This is coupled with land use drainage changes over time, mentioned in #3, above. Due to the length of time lapsed, it is likely not feasible to accurately determine how the drainage facility changed the wetland boundary in isolation from the other changes explained in 1.-3., above. Additional wetland areas One additional area was found during the October 2012 field visit. A forested/scrub-shrub wetland is located east of the trail/dam on the east side of Panther Lake, north of the baseball fields. Approximate location of this wetland is shown on the attached map. Conclusion Panther Lake is a drainage facility with clear wetland indicators. The facility was originally constructed in an area of historic wetland and therefore is considered a regulated wetland per FWRC. Absent an accurate ability to determine if the original boundary has expanded solely due to the presence of the drainage facility, a new delineation should be undertaken to determine precise wetland boundaries. Delineation of up-to-date wetland boundaries would be in keeping with the intent of the City's existing critical areas regulations, which are intended to preserve important ecological areas such as wetlands through the application of buffers based on current best available science. Additionally, Panther Lake would be considered a regulated wetland by the Washington Department of Ecology and the Corps of Engineers. Both agencies would regulate the wetland based on its current boundary as determined by the methodology outlined in the Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys and Coast Region (Corps 2010). In general, the Corps and Ecology do not regulate wetland buffers unless direct wetland impacts are proposed. O I"' 3 � 50 N Ot r C � � O1 v � o LIL# � 3 0 v a v _ y c c w c n � o u � w � c � .. o � c � ' PIN IN i - m °1 �U tl-) - tf./ I - -�- I- LANDAU 14 ASSOCIATES TECHNICAL MEMORANDUM WARONMENK j GEOIECHNCAL I NM" RESOURCES TO: Mr. Matt Fewins, P.E. and Mr. Don Helling, P.E., Huitt-Zollars, Inc. FROM: Brian A. Bemretts, P.E. DATE: January 29, 2013 RE: THIRTY PERCENT GEOTECHNICAL DESIGN RECOMMENDATIONS PANTHER LAKE PARK IMPROVEMENTS 200 SOUTHWEST CAMPUS DRIVE FEDERAL WAY, WASHINGTON INTRODUCTION This technical memorandum precedes the earlier draft technical memorandum dated November 26, 2012 and supports the 30 percent design recommendations for the Panther Lake Park Improvement project in Federal Way, Washington. As currently envisioned, we understand that the project includes constructing a new asphalt paved trail along the perimeter of Panther Lake and an approximate 38-stall asphalt paved parking lot adjacent to Southwest Campus Drive. The trail on the south and east side of Panther Lake will be constructed on an existing berm while the trail on the north and west side of Panther Lake will be constructed on native ground. To support the project, we completed the following tasks: • Reviewed geotechnical information from previous geotechnical investigations at the project site supplied by the City of Federal Way (City). City -supplied information included a geotechrucal design report prepared by Hong West & Associates, Inc. (HWA; HWA 1993) and a report of geotechnical observation and testing services also prepared by HWA (1994). • Completed geoteclinical engineering analysis and prepared 30 percent design geotechnical recommendations for the project. Thirty percent design recommendations are based solely on the subsurface conditions identified by HWA (1993) and the report of geotechnical observations completed during construction of the Panther Lake Flood Control facility (HWA 1994). ■ Prepared this technical , memorandum summarizing our 30 percent design geotechnical recommendations. Recommendations are provided for wet weather construction considerations, subgrade preparation, structural fill, fill placement and compaction criteria, and pavement design for the trail and parking lot. Our services were provided in accordance with our July 12, 2012 proposal for geotechnical services. Written notice to proceed was received on August 20, 2012. DCCF1\1E® moo 14 2013 CIS OF FEDERAL WAY CDS 950 Pacific Avenue, Suite 515 • Tacoma, WA 98402 • (253) 926-2493 • fax (253) 926-2531 • www.landauinc.com 113 GENERAL GEOLOGIC CONDITIONS General geologic information for the project site was obtained from the Geologic Map of the Poverty Bay 7.5' Quadrangle, King and Pierce Counties, Washington (Booth et al. 2004), published by the U.S. Department of the Interior. According to Booth et al., subsurface deposits in the vicinity of the project site consist of recessional outwash. Soil defined as recessional outwash typically consists of stratified deposits of sand and gravel with variable silt content. Silt and fine-grained sand are occasionally encountered in portions of the recessional deposit. Sorting, cross and horizontal stratification, and cut and fill structures are distinctive features of recessional outwash. Recessional outwash is transported by meltwater streams emanating from the face of the ablating glacier. Recessional outwash is generally medium dense to dense in density, exhibits moderate to high shear strength, and has moderate to high permeability. Adjacent to Panther Lake, near -surface deposits are mapped as wetland deposits (alluvium). Alluvium typically consists of stratified deposits of sand, gravel, clay, and silt. Peat and organic rich silt are often encountered in alluvium. Alluvium is typically very soft to very stiff/very loose to dense in consistency/density, exhibits low to moderate shear strength, and can be highly compressible, depending on the composition. Although not shown on the above -referenced geologic map, fill associated with previous site development and the existing berm is also present at the project area (HWA 1994). SUBSURFACE CONDITIONS The following summarizes the expected subsurface conditions along the proposed trail and at the proposed parking lot. South and East of Panther Lake HWA (1993) advanced six soil borings along the south and east side of Panther Lake. In their borings, HWA reportedly encountered undocumented fill associated with a previous embankment that is underlain by recessional outwash. Fill was measured to be between 3 and 7 feet (ft) thick and reportedly consisted of soft silt and loose to medium dense sand and gravel with variable silt content. Fill was reportedly underlain by recessional outwash deposits consisting of stiff to very stiff silt and loose to medium dense sand with variable gravel content. Berm fill was placed over the undocumented fill, which in areas, was overexcavated to expose denser, more competent material (HWA 1994). -Berm fill reportedly consists of silty gravel, silty sand, and sand with silt. Berm fill was reportedly placed in 8-inch lifts and compacted to at least 95 percent of 01/29/13 Y:\551\004.010\R\PantherLake-3DPercentGeotech Design TM.docx LANDAU ASSOCIATES 2 J the maximum dry density determined by ASTM International (ASTM) D 698. Groundwater was reportedly encountered at about elevation 240 ft (HWA 1993). West and North of Panther Lake No explorations were completed along the alignment of the portion of the trail located to the west and north of Panther Lake. Based on the closest available subsurface information (test pits TP-6 through TP-9) and published geologic maps, near -surface soil along this portion of the alignment likely consists of loose to medium dense, recessional outwash. Recessional outwash observed in test pits TP-6 through TP- 9 reportedly consists of sandy gravel with silt (HWA 1993). ,At the time of digging (October 1991), groundwater was encountered at about elevation 248 ft. Prior to final design, we recommend that several test pits be advanced along the trail alignment to confirm the presence of recessional outwash. Parking Lot We are not aware of any explorations completed within 200 ft of the proposed parking lot. Based on published geologic mapping, recessional outwash is likely present at the proposed parking lot. Prior to final design, we recommend that several test pits be advanced at the parking lot to confirm the presence of recessional outwash. EARTHWORK Earthwork to accommodate the proposed improvements is expected to consist of clearing, grubbing and stripping of areas for new trails; fills and cuts to accommodate the trail, and subgrade preparation for new pavement. WET WEATHER CONSIDERATIONS Earthwork -related construction will be influenced by weather conditions. Much of the existing near -surface soil along the alignment consists of fill, alluvium, and recessional outwash. These soil types contain a significant amount of fine sand and silt and are moisture sensitive. Site grading activities using moisture -sensitive soil should normally occur during the relatively warmer and drier period between about mid -summer to early fall. Completing these activities outside of this normal construction window could lead to a significant increase in construction costs due to weather -related delays, repair of disturbed areas, and the increased use of "all-weather" import fill materials. Because of the moisture sensitivity, unprotected site soil, in either a compacted or uncompacted state, will degrade quickly to a slurry -like consistency in the presence of water and construction traffic. If - - sulzgride or fiII saiibecornesToosened or3�s u�rbed, additional ezcava n ex osu undisturbed soil -amp - - 01/29/13 YA551\004.010\R\Panther Lake_30Percent Geotech Design TM.docx 3 LANDAU ASSOCIATES replace it with properly compacted structural fill will be required. For wet weather construction, the contractor may reduce the potential for disturbance of subgrades by the following: • Protecting exposed subgrades from disturbance by construction activities by constructing gravel working mats ■ Using a trackhoe with a smooth -bladed bucket to limit disturbance of the subgrade during excavation • Suspending earthwork and other construction activities that may damage subgrades during rainy days ■ Limiting and/or prohibiting construction traffic over unprotected soil • Providing designated haul roads for construction equipment • Sloping excavated surfaces to promote runoff • Sealing the exposed surface by rolling with a smooth drum compactor or rubber -tire roller at the end of each working day and removing wet surface soil prior to commencing filling each day. DEMOLITION AND CLEARING, GRUBBING AND STRIPPING Clearing and grubbing should be in accordance with the requirements in Section 2-01 of the Washington State Department of Transportation (WSDOT) Standard Specifications for Road, Bridge, and Municipal Construction (2012 WSDOT Standard Specifications; WSDOT 2012). Material generated during clearing and grubbing should be properly disposed of at an approved offsite location. Topsoil, and/or other organic -rich soil located within 5 ft of the proposed improvements should be stripped to expose the underlying inorganic soil. Stripped material is not considered suitable for use as fill beneath pavement or sidewalk areas. Stripped material should either be wasted off site at an approved location, or stockpiled for later use as topsoil. The removal of existing improvements (e.g., existing pavement sections) should be in accordance with the requirements of Section 2-02 of the 2012 WSDOT Standard Specifications. Existing asphalt that is removed to accommodate the proposed improvements may be pulverized, stockpiled, and recycled for use as structural fill. If this alternate is chosen, asphalt should be processed to meet the requirements in Section 9-03.21 of the 2012 WSDOT Standard Specifications. Disposal of the asphalt pavement at an approved offsite location is also a viable alternative. All incidental excavations associated with clearing and grubbing should be backfilled in accordance with the recommendations in this technical memorandum. TEMPORARY AND PERMANENT SLOPES In order to accommodate the construction of the proposed improvements, temporary excavations slopes may be required. Temporary excavations should be slope no steeper than 11�2H:1 V ioriz tat to 01/29/13 Y:\551\004.010\R\PantherLake_3OPercentGeotech Design TM.docx LANDAU ASSOCIATES 4 vertical). Temporary excavation slopes should be protected by covering with plastic sheets, straw, or other means to prevent erosion. Also, temporary excavation slopes should be the sole responsibility of the contractor. All local, state, and federal safety codes should be followed. The contractor should implement measures to prevent surface water runoff from entering excavations. All temporary excavation slopes should be monitored by the contractor during construction for any evidence of instability. If instability is detected, the contractor should flatten the temporary excavation slopes or install temporary shoring. If groundwater or groundwater seepage is present, flatter excavation slopes should be expected. In areas where sufficient space is available for permanent slopes, the permanent cut and fill slopes should be sloped no steeper than 2H:IV. Permanent slopes should be hydroseeded as soon as practical to prevent erosion or covered with either mulch or erosion control nettingiblankets, and bonded fiber matrix. SUBGRADE PREPARATION The upper 9 to 12 inches of subgrade for new pavement or for structural fill to raise site grades should be scarified, moisture -conditioned, and recompacted to at least 95 percent of the maximum dry density as determined by ASTM D 1557. The,prepared subgrade should be proof -rolled with a loaded dump truck, large self-propelled vibrating roller, or equivalent piece of equipment in the presence of a qualified geotechnical or civil engineer to check for the presence of soft, loose, and/or disturbed areas. If any soft, loose, and/or disturbed areas are revealed during proof -rolling, these areas should either be moisture conditioned and recompacted to the required density, or removed and replaced with properly compacted import structural fill. Subgrade preparation for the portion of the trail located on the existing berm should consist of removing the existing gravel base course, which has been contaminated with organic material. In order to avoid impacting the integrity of the existing berm, the subgrade should not be scarified and recompacted. According to the Brown and Caldwell Panther Lake Flood Control Facility as -built plan set dated September 1994, the gravel base course on the berm is 4 inches thick. STRUCTURAL FILL The suitability of excavated soil or imported soil for use as structural fill will depend on the gradation and moisture content of the soil when it is placed. As the amount of fines increases, the soil becomes increasingly sensitive to small changes in moisture content and adequate compaction becomes more difficult to achieve. Soil containing more than about 5 percent fines cannot consistently be compacted to a dense, non -yielding condition when the water content is greater than about 2 to 3 percent above optimum moisture content. Optimum moisture content is the moisture content at which the greatesfcoinpacted dry density can be achieved 01/29/13 Y:\551\004.010\R\Panther Lake_30Percent Geotech Design TM docx LANDAU ASSOCIATES 5 The near -surface soil anticipated along the trail alignment is anticipated to consist of recessional outwash or structural fill placed as part of the Panther Lake flood control facility in 1994. The site soils are anticipated to be within several points of the optimum moisture content, indicating that some moisture conditioning will be required in order to utilize the site soil as structural fill. With proper moisture conditioning, recessional outwash or structural could be reused during the warm, dry summer and early fall period during extended periods of dry weather. Alluvium or other organic rich soil is not suitable for structural fill and should be wasted at an approved off -site location. If there is insufficient site soil available for use as structural fill or if wet weather construction is anticipated, import structural fill will be required. Import structural fill should meet the requirements for Select Borrow in Section 9-03.14(2) of the 2012 WSDOT Standard Specifications. If wet weather construction is anticipated, the amount of fines (material passing a U.S. No. 200 sieve) should not exceed 5 percent, by dry weight, based on a wet sieve analysis of that portion passing the'/ -inch sieve. PAVEMENT DESIGN The subgrade for the pedestrian trail and parking lot should be prepared in accordance with the recommendations contained in this section of this technical memorandum entitled "Subgrade Preparation." We understand that the expected traffic at the parking lot would be primarily automobiles. We further understand that occasional light -duty service trucks and emergency vehicles could also utilize the trail and parking lot. The following table provides recommended pavement sections for both the trail (including portion of the trail located on the berm) and the parking lot. RECOMMENDED PAVEMENT SECTIONS Asphalt Crushed Pavement Surfacing Section Thickness Area (inches) inches Pedestrian Trail 2 4 Parking Lot 3 4 Asphalt concrete should be Class B aggregate material or HMA Class 1/2 inch, PG58-22 conforming to Section 5-04 of the 2012 WSDOT Standard Specifications. Base course material should be compacted to at least 95 percent of the maximum dry density (ASTM D 1557) and meet the requirements for Crushed Surfacing in Section 9-03.9(3) of the 2012 WSDOT Standard Specifications. Crushed surfacing placed on the existing berm should be compacted with hand -operated compaction equipment such as a double -drum walk -behind roller or jumping jack compactor. 01/29/13 Y:\551NO04.010\RkPantherLake-3oPercentGeotech Design TM.docx LANDAU ASSOCIATES 6 USE OF THIS TECHNICAL MEMORANDUM This technical memorandum was prepared for the exclusive use of Huitt-Zollars and the City of Federal Way for specific application to 30 percent design of the Panther Lake Park Improvements located in Federal Way, Washington. This technical memorandum is not intended to be sufficient for final design for the planned improvements; however, the information in this technical memorandum could be supplemented with additional explorations and engineering analyses that could form the basis of the design -phase geotechnical recommendations. Any use of this report by others, or for purposes other than intended, is at the user's sole risk. Within the limitations of scope, schedule, and budget, our services have been conducted in accordance with generally accepted practices of the geotechnical engineering profession; no other warranty, express or implied, is made as to the professional advice included in this technical memorandum. The 30 percent design conclusions and recommendations contained in this technical memorandum are based on historic subsurface information provided by the City of Federal Way. Some variations in subsurface soil and groundwater may not become evident until additional explorations are conducted, or even until construction. An appropriate contingency should be included in the final design phase and construction to accommodate potential variability of ground conditions. As the design continues, we should be advised so that we can review our 30 percent design recommendations to see if they are consistent with project specific plans. We appreciate the opportunity to provide geotechnical services on this project and look forward to assisting you during the upcoming design phases. If you have any questions or comments, or if we may be of further service, please call us at 253-926-2493. BAB/JDE/jrc REFERENCES Booth, D.B., Waldron, H.H., and K.G. Troost. 2004. Geologic Map of the Poverty Bay 7.5' Quadrangle, King and Pierce Counties, Washington. U.S. Department of the Interior Scientific Investigations Map 2854, HWA. 1993. Geotechnical Investigation, Panther Lake Flood Control Project, Federal Way, Washington. Report prepared for Brown and Caldwell Consultants. Hong West & Associates, Inc. June 30. HWA. 1994. Report of Geotechnical Observation and Testing Services, Panther Lake Flood Control Facility, Federal Way, Washington. Report prepared for Brown and Caldwell. Hong West & Associates, Inc. June 17. WSDOT. 2012. Standard Specifications for Road, Bridge, and Municipal Construction. Washington State Department of Transportation. M41-10. 01/29/13 Y:\551\004.010\R\Panther Lake_30Percent Geotech Design TM.docx LANDAU ASSOCIATES 7 ft HUITT aILARS HUITT-ZOLLARS, INC . 616 Stewart Street, Suite 1120 Seattle, WA 96101- 206,324.5500 phone 206 328 1680 fax huitt-zollars.com Technical Information Report for Panther Lake Trail Federal Way, Washington Prepared for: City of Federal Way Public Works Department 33325 8th Avenue South Federal Way, WA 98003 Contact: John Mulkey, P.E. (253) 835-2722 Prepared by: HUITT-ZOLLARS, INC. 818 Stewart Street Suite 1120 Seattle, Washington 98101 Contact: Chuck Manning, PE (206) 324-5500 March 29, 2013 RECEIVED NOV 14 2013 CM OF FEDERAL WAY CDS \\Hzseattle\ -drive\15104801 Panther Lake Trail\04 DESIGN AND ANALY5IS\07_Reports - Studies\02 Drainage\01 Reports -Tech Memos\Panther Lake TIR.docx I h al HLIITT-AXLAIS HUITT-ZOLLARS, INC. 818 Stewart Street, Suite 1120 • SealBe, WA 98101 Table of Contents TECHNICAL INFORMATION REPORT Section 1- Project Overview Section 2 - Conditions and Requirements Summary Section 3 - Offsite Analysis 206.324,5500 phone 206 3281880 fax huill-zollars.00m Section 4 - Flow Control and Water Quality Facility Analysis and Design Section 5 - Conveyance System Analysis and Design Section 6—Special Reports and Studies Section 7 — Other Permits Section 6 - CSWPPP Analysis and Design APPENDICES A Exhibits B Flow Control Calculations C Water Quality Control Calculations \\Hzseattle\i-drive\15104801 Panther Lake Trai1\04 DESIGN AND ANALYSIS\07_Reports - Studies\02 Drainage\OS Reports -Tech Memos\Panther Lake TIR.docx II HUITT-ZOLLARS, INC 818 Stewart Street, Suite 1120 Seattle, WA 98101- SECTION 1 PROJECT OVERVIEW 206 324 5500 phone 206 328 1880 fax huitl-zollars oom This Technical Information Report (TIR) describes the drainage management facilities that will be provided for the Panther Lake Trail Improvement project In this project, the existing trail around the Lake will be improved to provide a better, ADA- compliant geometry and surface. In addition, parking at the trailhead will be improved in order to provide better access to the trail. Panther Lake is a City of Federal Way surface water management/flood control facility that controls flood discharges to the downstream conveyance system and surface waters. The City desires to improve access to the Lake as an amenity to the public.. Proposed site improvements include a paved trail and parking area and associated drainage structures. Storm water from the trail will be dispersed into the adjacent natural areas. Runoff from off -site areas draining to to the lake will be collected and conveyed under the trail in a controlled manner. Storm water from the parking lot will be treated and discharged to the Lake. The natural drainage pattern as it exists currently will not be altered by the project. SECTION 2 CONDITIONS AND REQUIREMENTS SUMMARY This report and the facilities and procedures described have been prepared in conformance with the current surface water regulations of the City of Federal Way. These regulations are contained in the King County Surface Water Design Manual (2009), adopted by the City. 2.1 Drainage Review Requirements Based on project characteristics, Full Drainage Review is required. The project consists of one Threshold Discharge Area (TDA) discharging to Panther Lake or the Little League park adjacent to Panther Lake. Flows from all project areas commingle at the Little League Park discharge structure. Please see the Drainage Exhibit in Appendix A for the locations of these features. The full set of Core and Supplemental Requirements must be addressed in Full Drainage Review. \\Hzseattle\j-drive\15104801 Panther Lake Trail\04 DESIGN AND ANALYSIS\07_Reports - Studies\02 Drainage\01 Reports -Tech Memos\Panther Lake TIR.docx 2 HUITT-ZOLLARS, INC • 818 Stewart Street, Suite 1120 Seattle, WA 98101- 206.324,5500 phone 206 328.1880 fax huilt-zollars oom Core Requirement 1: Discharge at the Natural Location The natural, pre -developed conditions have been altered by urban development and the construction of the berm that created the Panther Lake surface water management facility. The existing condition is taken as the natural condition with respect to discharge location. Under natural, pre -developed conditions, runoff from the proposed trail alignment was not concentrated and flowed in a dispersed manner to the lacustrine/wetland buffers of Panther Lake. That condition will be maintained by the project. Core Requirement 2: Offsite Analysis A Level 1 Downstream Analysis, documented in Section 3 below, is required. Core Requirement 3: Flow Control The project location is subject to the Conservation Flow Control Standard, which requires flow duration control matching historic forested conditions. However, there are no discharges to streams for which the duration control standard was developed. The Lake is a flood control facility. Section 4 demonstrates that the small increases in runoff volume to the lake due to the trail improvement and parking lot will have a negligible effect on the flood control performance of the Lake. Core Requirement 4: Conveyance System No new conveyance facilities are proposed. Core Requirement 5: Erosion and Sediment Control All standards from KC SWDM apply. Section 8 describes how the TESC and CSWPPP plans meet these standards. Core Requirement 6: Maintenance and Operations (M and O) The City shall be responsible for M and O of drainage facilities associate with the project. Core Requirement 7: Financial Guarantees and Liability The City of Federal Way Parks Department will comply with this Core Requirement. Core Requirement 8: Water Quality Water quality treatment is required for the pollutant generating surfaces to be created or replaced. These include the new trail parking lot and entrance, and repaving at the entrance to the Little League park. \\Hzseattle\j-drive\15104801 Panther Lake Trail\04 DESIGN AND ANALYSIS\07_Reports - Studies\02 Drainage\01 Reports -Tech Memos\Panther Lake TIR.docx 3 W f U ITM IM6 HUITT-ZOLLARS, INC • 818 Stewart Street, Suite 1120 Seattle, WA 98101- 206 324 5500 phone 206 328 MO fax huill-zollars.com Special Requirement 1: Other Adopted Area -Specific Requirements None Applicable Special Requirement 2: Flood Hazard Area Delineation Not applicable. Special Requirement 3: Flood Protection Facilities Not applicable. Special Requirement 4: Source Controls Not applicable. Special Requirement 5: Oil Control Not applicable. SECTION 3 OFFSITE ANALYSIS Level 1 Offsite Analysis: Study Limits The resource review must extend downstream 1 mile from the project discharge point and the downstream analysis must extend %-mile downstream . The study limits are shown in the study limits exhibit in Appendix A. Resource Review The following resources were reviewed: Hylebos Basin Plan; City and FEMA floodplain maps; City Critical Areas map; City drainage complaint database for past two years; King County Sensitive Areas database; NRCS soil survey; engineering record drawings of Panther Lake berm improvements installed in 1993 as part of basin plan implementation. • The Hylebos Basin Plan (1991). The improvement of the Panther Lake berm, in order to improve the function of the natural depressional area as a flood control facility, was completed in 1993. The \\Hzseattle\i-drive\15104801 Panther Lake Trail\04 DESIGN AND ANALYSIS\07_Reports -Studies\02 Drainage\01 Reports -Tech Memos\Panther Lake TIR.docx 4 HL III )L LAIZs HUIT-r-ZOLLARS, INC. 616 Stewart SUeel, Suite 1120 • Seat6e, WA 96101- 206 324 5500 phone - 206 328,1660 fax huilt-zollars corn improvements included raising the berm and overflow spillway elevation and a secondary berm on the downgradient side of the adjacent Little League Park. • FEMA Floodplain Maps There are no mapped floodplains or floodways in the project vicinity. ■ Critical Areas o Erosion hazard areas are mapped near the trail alignment on the west side of Panther Lake. o Though shown as an area susceptible to groundwater contamination on the King County Sensitive Areas maps, due to the presence of permeable soils, the project area is not designated as a critical aquifer recharge area. • King County Sensitive Areas Maps (iMap) o Erosion hazard areas are mapped near the trail alignment on the west side of Panther Lake. o The project is shown as being in an area highly susceptible to groundwater contamination. • Drainage Complaints o Drainage complaints are documented in the City of Federal Way database for the past two years. None have been recorded for the area downstream of the project within the study limits. • Soils in the area of Panther Lake that will be traversed by the trail and occupied by parking facilities are mapped as, in descending order of occurrence, Everett-Alderwood gravelly sandy loams, Indianola loamy fine sand, Alderwood gravelly sandy loam amd Everett gravelly sandy loam. The NRCS rates these soils as Hydrologic Soil Group A or B, with moderate to low runoff potential. The King County SWDM (2009), however, classifies Alderwood soils as HSG C, or moderately high runoff potential . Field Inspection The existing informal trail, adjacent areas and the downstream system were observed from the lake low -flow discharge point to a point greater than % mile downstream. No evidence of flow restrictions, flooding or channel erosion or damage was observed. This, in combination with the lack of recent drainage complaints in the area, suggests the drainage system is functioning per plan. - \\Hzseattle\j-drive\15104801 Panther Lake Trail\04 DESIGN AND ANALYSIS\07_Reports - Studies\02 Drainage\01 Reports -Tech Memos\Panther Lake TIR.docx 5 r- t r �j§�' i it i t 3 1 HUITT-ZOLLARS, INC • 818 Stewart Street, Suite 1120 Seattle, WA 98101- 206 324 5500 phone 206 328.1860 fax huitl-zollars corn SECTION 4 FLOW CONTROL AND WATER QUALITY FACILITY ANALYSIS AND DESIGN FLOW CONTROL The project is located in the Conservation Flow Control area as delineated on the City of Federal Way Flow Control Applications Map. The proposed trail and associated facilities do not drain into a surface water channel that requires protection from increased flows and flow durations, but drain into the Panther Lake flood control facility. Therefore, no flow control is deemed necessary because it can be demonstrated that the project will have a negligible impact on the performance of the facility (see discussion below). The total amount of new and replaced impervious surface to be generated by the project is summarized in Table 4-1. Table 4-1 Existing and Project Land Use Land Use Trail Park (playground, trails) Entrance and Parking Total Impervious Existing, sf Proposed, sf Pervious Impervious Pervious Impervious 38,000 0 0 38,000 19,700 0 0 19,700 15,200 6,400 0 21,600 61400 79,300 The increase in volume of runoff to the Panther Lake surface water management facility was computed for the 100-year discharge event using NRCS methods and conservatively assuming a Hydrologic Soil Group (HSG) B for the existing condition. The resulting increase in the Panther Lake water surface elevation during the 100-year event is 0.01 ft, a negligible increase with respect to flood flows downstream. Calculations are provided in Attachment B. WATER QUALITY \\Hzseattle\ -drive\15104801 Panther Lake Trail\04 DESIGN AND ANALYSIS\07_Reports - Studies\02 Drainage\OS Reports -Tech Memos\Panther Lake TIR.docx 6 HUITT-ZOLLARS, INC 818 Stewart Street, Suite 1120 Seattle, WA 96101- 206 324 5500 phone 206 328 1880 lax huilt-zollars com The project is in the Basic Treatment Area per the City of Federal Way Water Quality Applications Map. The project potential pollutant generating areas requiring treatment are the new parking lot, the new entrance, and the Little League entrance that will be repaved and used for access to the parking lot. Runoff from the parking lot entrance and the Little League entrance will be allowed to disperse, as it does under existing conditions, across the Little League parking area and into the grass outfield of the Little League facility. Runoff from the new trail parking lot will be collected and treated in a linear sand filter along the downgradient edge of the parking lot. Calculations for the linear sand filter are included in Attachment C. Overflows from the sand filter will discharge via a 12-inch pipe to an existing ditch draining to Panther Lake. SECTION 5 CONVEYANCE SYSTEM ANALYSIS AND DESIGN No conveyance systems are proposed. SECTION 6 SPECIAL REPORTS AND STUDIES There were no special studies conducted as part of this design. SECTION 7 OTHER PERMITS NPDES Construction Stormwater Discharge General Permit -TESC and CSWPPP described in Section 8 will meet the technical requirements of this permit. SECTION 8 CSWPPP ANALYSIS AND DESIGN Part A ESC Plan Analysis and Design The Temporary Erosion and Sediment Control Plan will be developed based on consideration of the following measures: 1. Clearing limits Clearing limits will be marked as shown on the TESC plans. The minimum clearing necessary to complete the project will be performed. Existing vegetation will be preserved to the maximum practical extent. 2. Cover measures Cover measures will be employed for all soil and material stockpiles that are potential sources of pollutants in stormwater runoff. Cover measures -will also be provided for -all disturbed areas \\Hzseattle\i-drive\15104801 Panther Lake Trail\04 DESIGN AND ANALYSIS\07_Reports - Studies\02 Drainage\01 Reports -Tech Memos\Panther Lake TIR.docx 7 HUITT-ZOLLARS, INC 816 Stewart Sheet, Suite 1120 SeatOe, WA 98101- 206 324 5500 phone 206.3281880 fax huilt-zollara corn not receiving temporary or permanent stabilization within one week of soil disturbance (in dry season) or within two days during the wet season. 3. Perimeter protection A silt fence will be used along the downhill edge of the trail alignment and at the parking lot and entrances. Silt fences or other BMPs such as coir logs will also be used adjacent to the channels that cross the trail alignment. 4. Traffic area stabilization Ingress/egress points for construction equipment will be stabilized with construction entrances, if not already stabilized. Any material tracked onto adjacent paved streets will be immediately removed. Construction access roads, staging areas and parking areas will be stabilized 5. Sediment retention Temporary sediment retention will be provided by the perimeter protection BMPs. Sediment will also be retained using storm drain inlet protection BMPs if existing parking is used for staging.. 6. Surface water collection Surface water will not be collected during construction 7. Dewatering control Construction dewatering is not anticipated to be necessary. If required, a sedimentation bag will be used to filter the water prior to discharge at a stabilized outlet. 8. Dust control Dust control will be provided as necessary by applying water at the minimum rate necessary to inhibit dust generation. 9. Flow control Flow control will not be provided during the construction of the project. Hydrologic and hydraulic information There are no temporary conveyances or facilities proposed which require hydraulic analysis. \\Hzseattle\i-drive\15104801 Panther Lake Trail\04 DESIGN AND ANALYSIS\07_Reports - Studies\02 Drainage\01 Reports -Tech Memos\Panther Lake TIR.docx 8 N1 11TT7 )11ARS HUITT-ZOLLARS, INC 616 Stewart Street, Suite 1120 Seattle, WA 96101 206 324.5500 phone 206 3281880 fax - huilt-zollars.mm Part B SWPPS Plan Design The potential pollutants of concern during construction are sediment due to erosion of disturbed soils susceptible to erosion, and petroleum products and other chemicals associated with the operation of construction equipment. Control of erosion and sediment on linear projects such as this one is best accomplished through the use of perimeter controls and timely covering/stabilization of exposed soils. Control of chemicals associated with construction activity will be the responsibility of the contractor who must provide adequate containment, cover and cleanup materials fro any chemicals handled and/or stored on -site. \\Hzseattle\j-drive\15104801 Panther Lake Trail\04 DESIGN AND ANALYSIS\07_Reports - Studies\02 Drainage\01 Reports -Tech Memos\Panther Lake TIR.docx 9 Ht lff A UAI-6 HUITT-ZOLLARS, INC, 818 Stewart Street, Suite 1120 Seattle, WA 98101. . 206.324 5500 phone & 206.328,1880 fax . huill-zollarscom ATTACHMENT A Exhibits \\Hzseattle\ -drive\15104801 Panther Lake Trail\04 DESIGN AND AN ALYS I S\07_Re ports - Studies\02 Drainage\01 Reports -Tech Memos\Panther Lake TIR.docx 10 EXHIBIT 1: VICINITY MAP Date: Mar 28, 2013 3:40:01 PM HUITT-ZOUARS Drawing: \\HZSEATTLE\J-DRIVE115104801 PANTHER LAKE TRAIL\O6 DESIGN_CAD\EXHIBITS\SEPA\EXHIBIT 1 VICINITY.DWG TRAILS TO DRAIN VIA DISPERSION INTO EXISTING PANTHER LAKE v TRAILS TO DRAIN VIA S J� DISPERSION INTO J EXISTING PANTHER LAKE �. I EXISTING DRAINAGE DITCH s ` CONVEYANCE TO -� J N EXISTING DRAINAGE DITCH SAND FILTER STRIP I EXHIBIT 2: DRAINAGE EXHIBIT D.I. Mar 28, 20T3 3 40 22 PM HUIT F ODL.IARS Dro , IHZSEATTLEU�DRIVE1lS-Wl PANTHER LAKE TRAILOS DESIGN CADEXHIBITSISEPAIEXHIBII 2 DRAINAGE EXHIBIT DWG . -- . _ III � •.. - ��, �•� � --- : ti-. :7I �: n�'.J.-�j•- �R'�w'J'` -!cl •�_rl,.; 1 - _.. :fit.- - 71y4_� r,y '-^. ~-r "'•'.1.-. `7 ii _'_,�+' ��_'_: - Wit' •' ' .j Owk 1 MILE FROM PANTHER LAKE OUTLET EXHIBIT 3: DOWNSTREAM ANALYSIS lTF ZDLLARS Dale Mai 28 2 13 340 e8 PM D2vnig -ZSEATTLE—RIVE\15100001 PANTHER LAKE TRAID06 DESIGN CADEXHIBITSI EPA\EXHIBIT 3 DOWNSTREAM ANALYSIS DWG • FRI FiL IITTZOLARI HUITT-ZOLLARS, INC. 818 Stewart Street, Suite 1120 - SealOe, WA 98101- 206 324 5500 phone 206.328.1860 fax huitt-zollars.com ATTACHMENT B FLOW CONTROL CALCULATIONS AND SUPPORTING DOCUMENTS \\Hzseattle\ -drive\15104801 Panther Lake Trail\04 DESIGN AND ANALYSIS\07_Reports - Studies\02 Drainage\01 Reports -Tech Memos\Panther Lake TIR.docx 11 Ht 1I1T-7A )LLAR" HUITi-ZOLLARS, INC. 616 Slewarl Street, Suite 1120 Seattle, WA 96101- 206 324.5500 phone 206.3281660 fax huitt-zolla oom ATTACHMENT C WATER QUALITY CALCULATIONS AND SUPPORTING DOCUMENTS \\Hzseattle�-drive\15104801 Panther Lake Trail\04 DESIGN AND ANALYSIS\07_Reports - Studies\02 Drainage\01 Reports -Tech Memos\Panther Lake TIR.docx 12 INS HUITZAIAAS HUITT-ZOLLARS, INC. • 818 Slewarl Street, Suite 1120 Seattle, WA 98101- • 206 324 5500 phone . 206,328.1680 fax huilt-zollarscom \\Hzseattle\j-drive\15104801 Panther Lake Trail\04 DESIGN AND ANALYSIS\07_Reports -Studies\02 Drainage\01 Reports -Tech Memos\Panther Lake TIR.docx 13 (D-r 41k CITY OF Federal Way Date: June 15, 2017 To: Steve Ikerd, Parks Deputy Director From: Tony Doucette, P.E. Surface Water Management Engineer Subject: Panther Lake Park Trail Preliminary Technical Information Report RECEIVED JUN 15 2017 CITY OF FEDERAL WAY COMMUN17Y DEVELOPMENT The purpose of this memorandum is to describe the stormwater requirements for the proposed Panther Lake Park Trail. In summary, flow control and water quality requirements will be provided by using a combination of pervious pavement with infiltration, and dispersion. Project Overview The proposed Panther Lake Park Trail improvements involve constructing a new driveway, 20-stall parking lot, and six-foot wide crushed rock trail to connect to the existing social trail. The existing social trail will be improved by grading and providing a new crushed rock surface, extending the trail to connect to the BPA trail, and providing a new pedestrian bridge. The project designer is David A Clark Architects, PLLC. Existing Conditions The project site is owned by the City of Federal Way and located at approximately 500 SW Campus Drive in Federal Way, Washington within the Hylebos Creek drainage basin. The site is situated between SW Campus drive to the south, the King County Aquatic Center to the west, the Federal Way Little League baseball complex to the east, and the BPA trail to the north/west. A map of the site and existing facilities is provided in Figure 1. In existing conditions, the proposed parking lot site is undeveloped and covered with deciduous trees. The proposed social trail expansion is currently a dirt path that includes the crest of the Panther Lake Dam and circles the perimeter of Panther Lake. Panther Lake is a natural closed depression that was expanded with the construction of the Panther Lake and Ball Field dams in 1993. The proposed parking lot is rectangular in shape with a circular vehicle turnaround and the social trail improvements are linear and meandering. The proposed parking lot site generally slopes from south to north toward Panther Lake, and the grade of the proposed trail improvements varies along the alignment. Existing storm drain features are shown in Figure 1. Additional discussion of the existing conveyance network and downstream facilities is described under Core Requirements #1 and #2. A geotechnical report was not prepared for this project, however, City staff collected two soil samples to test for cation exchange capacity and percent organic content. Infiltration testing has not been Page 1 of 9 performed and the proposed infiltration facility will use a conservative infiltration rate of 0.1 inches per hour for design of the subsurface reservoir course. Proposed Conditions The proposed parking lot is approximately 15,000 square feet, including the vehicle turnaround and driveway entrance. The full hardened surface will be constructed with pervious concrete and provide sufficient storage to infiltrate all runoff. A layout of the proposed improvements is provided in Figure 2. Proposed slopes will be less than 5% for the entire parking lot. No offsite impervious area will be routed to the pervious pavement. The proposed trail improvements extend for approximately 4,000 linear feet and will be a crushed gravel surface with vegetated side slopes that disperse into the native vegetation. A map of the proposed trail improvements is provided in Figure 3. Design Criteria The stormwater requirements for this project are from the 2016 King County Surface Water Design Manual (KCSWDM) and the City of Federal Way Addendum (CFW Addendum) to the KCSWDM dated January 8, 2017. The project site is subject to Conservation Flow Control and Enhanced Basic Water Quality requirements. Drainage Review Requirements The project proposes more than 7,000 square feet of land disturbing activity and is subject to stormwater and water quality reviews per the CFW Addendum. Soils The National Resources Conservation Service (NRCS) Soil Survey Map for King County lists the site soils surrounding the parking lot as InC (Indianola loamy sand), defined as loamy sand where the depth to restrictive features is usually more than 80 inches and the capacity of the most limiting layer to transmit water is high. InC is identified as an NRCS hydrologic soil group "A". NRCS Soil Survey Maps show the social trail alignment includes AgD (Alderwood gravelly sandy loam) and EwC (Everett-Alderwood gravelly sandy loams). AgD is definied as a gravelly sandy loam where the depth to restrictive features is between 20 and 39 inches and the capacity of the most limiting layer to transmit water is very low to moderately low. EwC is defined as a gravelly sandy loam where the depth to the restrictive feature is more than 80 inches and the capacity of the most limiting layer to transmit water is high. AgD and EwC are defined as NRCS hydrologic soil groups "C" and "A" respectively. Core Requirements Core Requirement #1— Discharge at the Natural Location Under Existing conditions, the parking lot area is undeveloped and vegetated. Runoff infiltrates, evaporates, transpires, or eventually runs off into Panther Lake. The Lake is a closed depression that retains water up to an overflow elevation where it discharges through the dam's outlet works Page 2 of 9 downstream to the West Hylebos. The proposed improvements will continue to discharge to Panther Lake. Core Requirement #2 — Offsite Analysis The study limits of this Level 1 offsite analysis extend % mile downstream from the project discharge point. The Hylebos Basin Plan, City mapping, NRCS soil surveys and citizen action request databases were reviewed as part of the analysis. The Panther Lake Dam project was completed in 1993 and increased the capacity of the existing Panther Lake natural depression. Improvements included raising the berm, improving the spillway and constructing the ballfield dam as a structure in series with the Panther Lake Dam. King County maps show that the east and west sides of the Panther Lake parcel are mapped as erosion hazard areas, that the site's susceptibility to groundwater contamination is medium to high, and that the site is within wellhead protection areas with five to ten years of travel time (capture zones 2 and 3). The site is outside of the Wellhead capture zone 1. Runoff draining to the lake that rises to the dam's primary spillway enters the piped outlet works and is conveyed in a 27" corrugated metal pipe (CMP) that drains under the existing ball fields, under the ballfield dam and into the existing City maintained storm drain system. The storm drain system drains south through the Win -Co Parking lot, crosses SW Campus Drive and enters an open channel south of the intersection of SW Campus Drive/S348th Street and Is'Ave S. When runoff draining to the lake rises up to the gabion overflow spillway, water is impounded behind the ballfield dam and drains through the ballfield dam outlet works into the same storm system draining the Panther Lake Dam primary spillway. The City's citizen reporting database and work order tracking system shows no flooding or nuisance water issues downstream, along the length of the existing storm drain, and at the storm drain outlet. No known issues need to be addressed with this project and no known issues will be made worse with the completion of this project. Core Requirement #3 — Flow Control The project is located in a Conservation Flow Control area, requiring improvements to meet historic forested condition flow durations. However, all target areas for the project will either infiltrate with pervious pavements (the entrance and parking lot) or disperse (along the trail improvements). Analysis of the proposed parking lot pervious pavement is provided in Attachment 1. No new flow control facilities will be provided. Core Requirement #4 — Conveyance System No new conveyance system will be provided because the hard surfaces will be pervious with reservoir courses and the social trail improvements will disperse. An underdrain is not proposed for the pervious paving parking lot. Core Requirement #5 — Erosion and Sediment Control Erosion control plans will be prepared for this project based on the thirteen measures outlined in section 1.2.5 of the KCSWDM. Page 3 of 9 1. Clearing Limits will be shown on the plan to minimize the construction footprint and existing vegetation will be preserved to the maximum extent practical. 2. Cover measures will be employed for all soil and material stockpiles and disturbed areas not receiving temporary or permanent stabilization within one week during the dry season or within two days during the wet season. 3. A silt fence will be used along the downhill edge of the trail alignment and at the parking lot and entrances in combination with straw wattles. 4. Traffic area stabilization will be provided by stabilized construction entrances and any material tracked onto adjacent paved streets will be swept and removed. 5. Temporary sediment retention will be provided by the perimeter silt fence and straw wattle BMPs. Storm drain inlet inserts will also be installed in adjacent catch basins within SW Campus Drive. 6. No surface water will need to be collected during construction of the project. 7. Construction dewatering will not be needed. 8. Dust control will be provided by water application as necessary at the minimum rate necessary to prevent dust pollution. 9. Flow control is not required or provided by this project. 10. -13. Pollutants will be controlled, flow control BMPs will be protected and maintained, and the erosion and sediment control plan will be actively managed throughout the project. In addition, the proposed pervious surfaces will be protected from sediment contamination following installation. Core Requirement #6 — Maintenance and Operations Manual Maintenance and operations of the proposed facility will be conducted consistent with Appendix A of the KCSWDM. Core Requirement #7 — Financial Guarantees and Liability The project is a City Parks and Recreation project to be constructed on a City owned parcel. Financial guarantees will not be required. Core Requirement #S — Water Quality A water quality review is required per the CFW Addendum because the project proposes more than 7,000 square feet of land disturbing activity. The project is in an enhanced basic water quality treatment area and target surfaces include new pollution generating impervious surface (PGIS), pollution generating pervious surface (PGPS), existing impervious surfaces added since January 8, 2001, and replaced PGIS and PGPS. The proposed parking lot is approximately 15,000 square feet, exceeding the 5,000 square foot threshold for PGIS. Since water quality is required, the CFW Addendum requires that the entire site must be brought up to water quality standards. Page 4 of 9 Water quality for the site will be accomplished by using pervious pavement and infiltration at the proposed parking lot and dispersion along the social trail improvements. The proposed infiltration location is located in a wellhead protection area 3 (10-year travel time) and outside of erosion hazard areas identified in previous sections. City staff collected soil samples to verify the cation exchange capacity (CEC) and percent organic content of the existing soil and found it suitable for water quality treatment. Two samples were taken each for CEC and percent organic content, one each at the east and west ends of the proposed parking lot. Values for CEC were 190 and 200 for east and west respectively, and percent organic content values were 7.1% and 14%. Both sample locations exceed the required CEC of 5 or greater and percent organic content of 1% or greater. A full report of laboratory testing results is provided in Attachment 2. Special Requirements Special Requirement 1— Other Adopted Area -Specific Requirements There are no adopted area -specific requirements that apply to this project beyond what is required by the KCSWDM and the CFW Addendum. Special Requirement 2 — Flood Hazard Area Delineation Special requirement 2 does not apply to this project because no flood hazard areas exist on or adjacent to the project site. Special Requirement 3 — Flood Protection Facilities Special requirement 3 does not apply because the project will not rely on or modify an existing flood protection facility. Special Requirement 4 —Source Controls Source controls will not be required for this project because there is no commercial building or commercial site development permit. Special Requirement 5 — Oil Control Special requirement 5 does not apply because the proposed park improvements do not meet any of the KCSWDM definitions for a high use site. Page 5 of 9 .... . . . . . . E-7 0 - w1wev0 . ►q 7 — -4-WIS Figure 2: Proposed Parking Lot EX. GUTTER t SHEET S1O1 r EXCESS SOIL MAY BE PLACED THIS AREA. SHAPE ® 'I SLOPE EX. (4X) FLAG POLE W/ 2.0' DIA. CONCRETE BASE TYPICAL EX. —BOOM TRUCK STAGING — SF LINE INDICATES SILT FENCE PER DETAIL 4/C-110. is y L$ � L r a l & WIDE CRUSHED ROCK TRAIL. 32' WIDEISTEEL GATE. E C-110 ELEPHON BOX EX. UTILITY — VAULTS EX. LIGHT — TO REMAIN LEGEND PROPOSED v INDICATES EX. TREE /� TO BE REMOVED INDICATES 8" PERVIOUS CONC.OVER 8" TYPE 57 CRUSHED STONE BASE NEW LOOP TRAIL WITH CRUSHED ROCK TRAIL MIX SURFACING. SEE PLANS FOR MORE DETAIL. FROM STATION 0+00 TO STATION 15+20 PROVIDE 2" DEPTH. ALL OTHER AREAS TO RECEIVE 4" COMPACTED DEPTH. FOR ADA BYPASS AT STATION 10+00 TO STATION 13+00, PROVIDE 4" DEPTH. WEC _ WATTLE EROSION CONTROL SF SILT FENCE SIGN AND POST F SEE CFW DETAILS, 3-51, 3-53. 3-54, SPECIAL PROVISIONS APPENDIX SEE DRAWING G102 FOR EXISTING LEGEND. NOTES 1. SEE DRAWINGS G102 & G103 FOR FEDERAL WAY GENERAL NOTES AND ADDITIONAL CONSTRUCTION NOTES SPECIFIC TO THIS PROJECT. 0 h 6'X8 REGULAR CONC. r FOR PORTABLE r.t TO (NIC) 24' DIAMETER 6" PERVIOUS CONCRETE INTERPRETIVE CIRCLE 4T ti r^ }' HC J T S .}'� r •tiyr i1 EXTRUDED PICNIC TASL & CONC. PAC r a IGN e AD DOMES r VAN ACC. 8' DE a, TH / • � PERVIO ' ' r CONCRET CURB, SIGN (NIC) ` S 4y� � • - � � r • a ro. NEW ADA �► "y. - ,5*1 •i 1 �; DRIVEWAY- DOMES t d; 'S ,' T� T3� �� ✓ s ar 16 SEE SHT. C110 a�a `4$�. err �r ��. •2§p_• y��•• ..�� err CROSSWALK STRIPING `•.•:., .:4% e` IF WIDE PERVIOUS i^ (J(7%� \ CONC. WALK ✓ ^i Lr "s : y 1�_ 'e �t ^t '^z t SCALE ON FEET) HORIZ THE CONTRACTOR SHALL BE FULLY o to 20 as RESPONSIBLE FOR THE LOCATION AND I� BENCHMARKS/DATUM: PROTECTION OF ALL EXISTING UTILITIES AND SHALL VERIFY ALL HORIZONTAL: KING COUNTY SURVEY CONTROL, UTILITY LOCATIONS PRIOR TO WASHINGTON STATE PLANE, NORTH ZONE, NAD 83/91. CONSTRUCTION BY CALLING THE: UNDERGROUND LOCATE LINE: VERTICAL: NAVD 88. 811 A MINIMUM OF 46 HOURS PRIOR TO ANY EXCAVATION PROVIDE NEW 2" CRUSHED ROOK TRAIL MIX, TYP. OVER EX. pAM. N GRADING OF EX. CONDITI 5 REQUIRED FROM STATIONell+TQ10+00. PLACE NEW 6'-O"WIpAIL MIX OVER EX. IAL %��Ro SI EX. WOOSIGN POINE OF WATTLE CONTROL cf+r�i DETAIL ry ': i - ry 46 �b o ter U 6 WIDE CRUSHED z OGK T IL w ti ✓' �{ /// TEMPOR Y SITE � r LOCATION R r CITY PROV D i r j BOULOE -,TO BE r ! USED A 4 RAMP �1<y RE 1 LOCAT P INGI P RKlNG 1 r EA 2.2'H WOOD / FARRIER TRUCK ACCESS 'F r Y BROKEN OF B 1 BROKEN ASPiIALT �r I (2X) 3.5-8, 3" DIA. ETAL POST 33017 1341h AVENUE SE AUBURN, WASHINGTON 95092-8519 TEL 253 351-9077 vavw•.� kArrl�i��e�e�n CITY OF Federal Way City of Federal Way Parks & Recreation DepL 33325 8rh Ave. So. Federal Way, WA 98003 Panther Lake Park Trail 200 SW Campus Dr Federal Way, W A 98023 1316 SB DAC 4937 Trail Plan C-101 � PERMIT Figure 3: Proposed Trail Improvements 7TH WAY SW NE 1/4 SEC. 19, T 21 N, R 4E, W.M. \\ s.-x* :�__ NEW SIGN, r, i, fi i SEE CIVIL PLANS � I FOR REFERENCE r INFOMATION ABOUT ' TOPO SURVEY I r� NEW RAIL FENCE , JEW SIGN KING COUNTY AQUATIC CENTER XI ''� rr i J r � �� °•�� 1� IGN .-.e n PANTHER LAKE SEE 1992 BROWN & CALDWELL WELAND STUDY FOR DETAILS ABOUT THE WETLAND DELINEATION OF THIS PANTHER LAKE AREA. ---- APPROXIMATE Lri^- LOCATIONS OF sG INTERPRETIVE SIGNS (7 NEW & 1 EX.) . ■; j SW CA 4TPU,$ ORrVE . EX STORM DRAIN INTAKE STRUCTURE �--• NEW SIGN NEW SIGN 1 1 EX. OVERFLOW SPILLWAY FOR PANTHER LAKE PROPOSED NEW PARKING LOT (SEE CIVIL PLANS) PROPOSED TRAIL IMPROVEMENTS, TYP. (SEE CIVIL PLANS) EX. STORM DRAIN OUTLET FROM PANTHER LAKE TO THE WEST TRIBUTARY OF HYLEBOS CREEK. FEDERAL WAY NATIONAL LITTLE LEAGUE FACILITY EXISTING CONDITIONS LEGEND PANTHER LAKE WETLAND BOUNDARY s' •� ' (APPROXIMATED FROM BROWN AND CALDWELL,1992) — — — PANTHER LAKE WETLAND BUFFER N aerate tal ��, v sv +av tx 33017 U41h AVENUE SE AUBURN, V6AGHINGTON 98092-8519 TCL 253 351-9677 CITY OF Federal Way Ciro of Federal Way Parks & Recreation DepL 33325 8th Ave. So. Federal Way, WA 98003 Panther L ke Park Trail 550 SW Campus Dr Federal Way, WA 98023 1316 SB DAC Jun. a 5,2077 a93' Panther Iakc OYenim i^=1ocr-n^ .rear. G-106 PERMIT Attachment 1: WWHM Pearmeable Pavement Analysis M • Permeable Pavement 1 Mitigated Facility Name Downstream Connection Facility Type Facility Dimensions Pavement Length (ft) 122;5 Pavement Bottom Width (ft) 122.5 Effective Total Depth (ft) 1b.67 Bottom slope (ft/ft) Q,01 Effective Volume Factor. Parking Lot Outlet 1 Outlet 2 �Outlet 3 0 . E"- Permeable Pavement Quick Pavement_ Facility Dimension Diaqram Layers for Permeable Pavement Pavement Thickness (ft) 0.5 Pavement porosity (0-1) O,g Sublayer 1 Thickness (ft) O.g7 Sublayer 1 porosity (0-1) 0,4 Sublayer 2 Thickness (ft) P� Sublayer 2 porosity (0-1) F -� Infiltration YES - Overflow Data j Ponding Depth Above Pavement (ft) F0 Diameter Height (in) (ft) Underdrain 10 - F0- : j Storage Volume at Top of Pavement (ac-ft) .093 Measured Infiltration Rate (inlhr) Or y J Reduction Factor (infilt"factor) 7 - - Show Pavement Table j0pen Table J Use Wetted Surface Area (sidewalls) NO J Initial Stage (ft) p Total Volume Infiltrated (ac-ft) 50.462 Total Volume Through Facility (ao-ft) 50.462 Total Volume Through Riser (ac-fk) 0 Percent Infiltrated 100 Size Pavement Target %: 100 J Page 9 of 9 UNKs ......... Review your project results through Tofd Acce% Have a Question? Ask /The �- Expert TestAmerica THE LEADER IN ENVIRONMENTAL TESTING ANALYTICAL REPORT TestAmerica Laboratories, Inc. TestAmerica Seattle 5755 8th Street East Tacoma, WA 98424 Tel: (253)922-2310 TestAmerica Job ID: 580-66183-1 Client Project/Site: Panther Lake Trail City of Federal Way 33325 8th Ave Sourth Federal Way, Washington 98003-6325 Attn: Theresa Thurlow -�J" d, UUA Authorized for release by: 31212017 2:49:03 PM Sheri Cruz, Project Manager 1 (253)922-2310 sheri.cruz@testamericainc.com Attachment 2: Soils Test Deport This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature. Results relate only to the items tested and the sample(s) as received by the laboratory. Visit us at: www.testamericainc.com Client: City of Federal Way Project/Site: Panther Lake Trail TestAmerica Job ID: 580-66183-1 Table of Contents Cover Page .............................................. Table of Contents ......................................... 2 Case Narrative ........................................... 3 Definitions ............................................... 4 Client Sample Results ...................................... 5 QC Sample Results ........................................ 9 Chronicle ................................................ 10 Certification Summary ...................................... 11 Sample Summary ......................................... 13 Chain of Custody .......................................... 14 Receipt Checklists ......................................... 18 TestAmerica Seattle Page 2 of 20 3/2/2017 Case Narrative Client: City of Federal Way Project/Site: Panther Lake Trail Job ID: 580-66183-1 Laboratory: TestAmerica Seattle Narrative Job Narrative 580-66183-1 Comments No additional comments. TestAmerica Job ID: 580-66183-1 Receipt The samples were received on 2/14/2017 3:09 PM; the samples arrived in good condition, properly preserved and, where required, on ice. The temperature of the cooler at receipt was 14.40 C. Metals Method(s) D2974-87: A correction factor of 0.58 was applied to the calculation of FOC by Nelson and Sommers. East Soil Sample Panther Lake Trail (580-66183-1) and West Soil Sample Panther Lake Trail (580-66183-2) No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Organic Prep No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. TestAmerica Seattle Page 3 of 20 3/2/2017 Definitions/Glossary Client: City of Federal Way Project/Site: Panther Lake Trail Glossary Abbreviation These commonly used abbreviations may or may not be present in this report TestAmerica Job ID: 580-66183-1 n Listed under the "D" column to designate that the result is reported on a dry weight basis %R Percent Recovery CFL Contains Free Liquid CNF Contains no Free Liquid DER Duplicate error ratio (normalized absolute difference) Dil Fac Dilution Factor DL, RA, RE, IN Indicates a Dilution, Re -analysis, Re -extraction, or additional Initial metals/anion analysis of the sample DLC Decision level concentration MDA Minimum detectable activity EDL Estimated Detection Limit MDC Minimum detectable concentration MDL Method Detection Limit ML Minimum Level (Dioxin) NC Not Calculated ND Not detected at the reporting limit (or MDL or EDL if shown) PQL Practical Quantitation Limit QC Quality Control RER Relative error ratio RL Reporting Limit or Requested Limit (Radiochemistry) RPD Relative Percent Difference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin) TEQ Toxicity Equivalent Quotient (Dioxin) TestAmerica Seattle Page 4 of 20 3/2/2017 Client Sample Results Client: City of Federal Way TestAmerica Job ID: 580-66183-1 Project/Site: Panther Lake Trail Client Sample ID: East Soil Sample Panther Lake Trail Lab Sample ID: 680-66183-1 Date Collected: 02/14/17 14:10 Matrix: Solid Date Received: 02/14/17 15:09 rGeneral Chemistry Analyte Result Qualifier RL RL Unit D Prepared Analyzed Dil Fac I Organic Matter at 440 Deg(C) 7.1 %o OIL 0.10 % 02/23/17 15:14 1 FOC by Nelson and Sommers 4.1 0.058 % 02/23/17 15:14 1 (0.58 factor) Moisture Content 16 0.10 % 02/23/17 15:14 1 Percent Moisture 19.5 0.1 % 02/27/17 15:38 1 Percent Solids 80.5 0.1 % 02/27/17 15:38 1 TestAmerica Seattle Page 5 of 20 3/2/2017 Client Sample Results Client: City of Federal Way Project/Site: Panther Lake Trail Client Sample ID: East Soil Sample Panther Lake Trail Date Collected: 02/14/17 14:10 Date Received: 02/14/17 15:09 General Chemistry Analyte Result Qualifier RL Cation Exchange Capacity 190 1.2 TestAmerica Job ID: 580-66183-1 Lab Sample ID: 680-66183-1 Matrix: Solid Percent Solids: 80.5 RL Unit D Prepared Analyzed Dil Fac meq/100gm t� 02/27/1716:24 02/27/1716:24 1 TestAmerica Seattle Page 6 of 20 3/2/2017 Client Sample Results Client: City of Federal Way Project/Site: Panther Lake Trail Client Sample ID: West Soil Sample Panther Lake Trail Date Collected: 02/14/17 14:20 Date Received: 02/14/17 15:09 r General Chemistry Analyte Organic Matter at 440 Deg(C) FOC by Nelson and Sommers (0.58 factor) Moisture Content Percent Moisture Percent Solids Result Qualifier 14 8.1 29 21.1 78.9 RL RL Unit 0.10 % 0.058 % 0.10 % 0.1 % 0.1 % TestAmerica Job ID: 580-66183-1 Lab Sample ID: 680-66183-2 Matrix: Solid D Prepared Analyzed Dil Fac 02/23/17 15:14 1 02/23/17 15:14 1 02/23/17 15:14 1 02/27/17 15:38 1 02127/17 15:38 1 Page 7 of 20 TestAmerica Seattle 3/2/2017 Client Sample Results Client: City of Federal Way Project/Site: Panther Lake Trail Client Sample ID: West Soil Sample Panther Lake Trail Date Collected: 02/14/17 14:20 Date Received: 02/14/17 15:09 General Chemistry Analyte Cation Exchange Capacity TestAmerica Job ID: 580-66183-1 Lab Sample ID: 580-66183-2 Matrix: Solid Percent Solids: 78.9 Result Qualifier RL RL Unit D Prepared Analyzed Dil Fac 200 1.3 meq/100gm T 02/27/1716:24 02/27/1716:24 1 TestAmerica Seattle Page 8 of 20 3/2/2017 QC Sample Results Client: City of Federal Way Project/Site: Panther Lake Trail Method: 9081 - Cation Exchange Capacity (CEC) Lab Sample ID: 580-66183-1 DU Matrix: Solid i Analysis Batch: 411700 1 Sample Sample LAnalyte Result Qualifier Cation Exchange Capacity 190 TestAmerica Job ID: 580-66183-1 Client Sample ID: East Soil Sample Panther Lake Trail Prep Type: Total/NA Prep Batch: 410783 DU DU RPD Result Qualifier Unit D RPD Limit 200 meq/100gm 6 20 TestAmerica Seattle Page 9 of 20 3/2/2017 Lab Chronicle Client: City of Federal Way Project/Site: Panther Lake Trail TestAmerica Job ID: 580-66183-1 Client Sample ID: East Soil Sample Panther Lake Trail Lab Sample ID: 580-66183-1 Date Collected: 02/14/17 14:10 Matrix: Solid Date Received: 02114/17 15:09 Batch Batch Dilution Batch Prepared Prep Type Type Method Run Factor Number or Analyzed Analyst Lab Total/NA Analysis D2974-87 1 373309 02/23/17 15:14 LWN TAL CHI Total/NA Analysis Moisture 1 410742 02/27/17 15:38 BAA TAL NSH Client Sample ID: East Soil Sample Panther Lake Trail Lab Sample ID: 580-66183-1 Date Collected: 02/14/17 14:10 Matrix: Solid Date Received: 02/14/17 15:09 Percent Solids: 80.5 Batch Batch Dilution Batch Prepared Prep Type Type Method Run Factor Number or Analyzed Analyst Lab Total/NA Prep 9081 410783 02/27/17 16:24 JSF TAL NSH Total/NA Analysis 9081 1 411700 02/27/17 16:24 RDF TAL NSH Client Sample ID: West Soil Sample Panther Lake Trail Date Collected: 02/14/17 14:20 Date Received: 02/14/17 15:09 Lab Sample ID: 580-66183-2 Matrix: Solid Batch Batch Dilution Batch Prepared Prep Type Type Method Run Factor Number or Analyzed Analyst Lab Total/NA Analysis D2974-87 1 373309 02/23/17 15:14 LWN TAL CHI Total/NA Analysis Moisture 1 410742 02/27/17 15:38 BAA TAL NSH Client Sample ID: West Soil Sample Panther Lake Trail Lab Sample ID: 580-66183-2 Date Collected: 02/14/17 14:20 Matrix: Solid Date Received: 02/14/17 15:09 Percent Solids: 78.9 Batch Batch Dilution Batch Prepared Prep Type Type Method Run Factor Number or Analyzed Analyst Lab Total/NA Prep 9081 410783 02/27/17 16:24 JSF TAL NSH Total/NA Analysis 9081 1 411700 02/27/17 16:24 RDF TAL NSH Laboratory References: TAL CHI = TestAmerica Chicago, 2417 Bond Street, University Park, IL 60484, TEL (708)534-5200 TAL NSH = TestAmerica Nashville, 2960 Foster Creighton Drive, Nashville, TN 37204, TEL (615)726-0177 TestAmerica Seattle Page 10 of 20 3/2/2017 Certification Summary Client: City of Federal Way Project/Site: Panther Lake Trail Laboratory: TestAmerica Seattle The certifications listed below are applicable to this report. TestAmerica Job ID: 580-66183-1 F.Authority Program EPA Region Certification ID Expiration Date Washington State Program 10 C553 02-17-18 Laboratory: TestAmerica Chicago All certifications held by this laboratory are listed. Not all certifications are applicable to this report Authority Program EPA Region Certification ID Expiration Date California State Program 9 2903 04-30-18 Georgia State Program 4 N/A 04-30-17 * Georgia State Program 4 939 04-30-17 * Hawaii State Program 9 N/A 04-30-17 * Illinois NELAP 5 100201 04-30-17 * Indiana State Program 5 C-IL-02 04-30-17 * Iowa State Program 7 82 05-01-18 Kansas NELAP 7 E-10161 10-31-17 Kentucky (UST) State Program 4 66 04-30-17 * Mississippi State Program 4 N/A 04-30-17 * New York NELAP 2 12019 04-01-17 * North Carolina (WW/SW) State Program 4 291 12-31-17 North Dakota State Program 8 R-194 04-30-17 * Oklahoma State Program 6 8908 08-31-17 South Carolina State Program 4 77001 06-30-17 USDA Federal P330-15-00038 02-11-18 Wisconsin State Program 5 999580010 08-31-17 Wyoming State Program 8 8TMS-Q 04-30-17 Laboratory: TestAmerica Nashville All certifications held by this laboratory are listed. Not all certifications are applicable to this report. Authority Program EPA Region Certification ID Expiration Date A2LA A2L4 NA: NELAP & A21-A 12-31-17 A21-A ISO/IEC 17025 0453.07 12-31-17 Alaska (UST) State Program 10 UST-087 07-24-17 Arizona State Program 9 AZ0473 05-05-17 Arkansas DEQ State Program 6 88-0737 04-25-17 California State Program 9 2938 10-31-18 Connecticut State Program 1 PH-0220 12-31-17 Florida NELAP 4 E87358 06-30-17 Georgia State Program 4 N/A 12-31-17 Illinois NELAP 5 200010 12-09-17 Iowa State Program 7 131 04-01-18 Kansas NELAP 7 E-10229 10-31-17 Kentucky (UST) State Program 4 19 06-30-17 Kentucky (WW) State Program 4 90038 12-31-17 Louisiana NELAP 6 30613 06-30-17 Maine State Program 1 TN00032 11-03-17 Maryland State Program 3 316 03-31-18 Massachusetts State Program 1 M-TN032 06-30-17 Minnesota NELAP 5 047-999-345 12-31-17 Mississippi State Program 4 N/A 06-30-17 Montana (UST) State Program 8 NA 02-24-20 Nevada State Program 9 TN00032 07-31-17 * Certification renewal pending - certification considered valid. TestAmerica Seattle Page 11 of 20 3/2/2017 Certification Summary Client: City of Federal Way TestAmerica Job ID: 580-66183-1 Project/Site: Panther Lake Trail Laboratory: TestAmerica Nashville (Continued) All certifications held by this laboratory are listed. Not all certifications are applicable to this report. Authority Program EPA Region Certification ID Expiration Date New Hampshire NELAP 1 2963 10-09-17 New Jersey NELAP 2 TN965 06-30-17 New York NELAP 2 11342 03-31-17 North Carolina (WW/SW) State Program 4 387 12-31-17 North Dakota State Program 8 R-146 06-30-17 Ohio VAP State Program 5 CL0033 07-10-17 Oklahoma State Program 6 9412 08-31-17 Oregon NELAP 10 TN200001 04-27-17 Pennsylvania NELAP 3 68-00585 06-30-17 Rhode Island State Program 1 LAO00268 12-30-17 South Carolina State Program 4 84009 (001) 02-18-17 " South Carolina (Do Not Use - DW) State Program 4 84009 (002) 12-16-17 Tennessee State Program 4 2008 02-23-17' Texas NELAP 6 T104704077 08-31-17 USDA Federal P330-13-00306 12-01-19 Utah NELAP 8 TN00032 07-31-17 Virginia NELAP 3 460152 06-14-17 Washington State Program 10 C789 07-19-17 West Virginia DEP State Program 3 219 02-28-18 Wisconsin State Program 5 998020430 08-31-17 Wyoming (UST) A21LA 8 453.07 12-31-17 Certification renewal pending - certification considered valid. TestAmerica Seattle Page 12 of 20 3/2/2017 Sample Summary Client: City of Federal Way TestAmerica Job ID: 580-66183-1 Project/Site: Panther Lake Trail Lab Sample ID Client Sample ID Matrix Collected Received 580-66183-1 East Soil Sample Panther Lake Trail Solid 02/14/17 14:10 02/14/17 15:09 580-66183-2 West Soil Sample Panther Lake Trail Solid 02/14/17 14:20 02/14/17 15:09 TestAmerica Seattle Page 13 of 20 3/2/2017 j Go O Q h V a c m .= � y U 4 isV I■ (n O N� l� � LL vJ U O U x � E o ! ci C j �W�Mo•u `i � S o uf/3�NN� tea+ 16 MM sin p N N U �G y 1f1 U� X Heim- LL • CZ W V) cios �x x Pa3 snoonby 4v S t�4 }E Fm >:,il F A � 6 � w 'lJ 7 w-• ` f� Io O 1, ' o 4 g m m y t �a Q1 o U y 1� Q � 3 h c � a Q U m CY a C El O q cl a 59 m ❑ T b ❑ N ro m � J i a o� y O � H ❑ 7. L ' U• m ❑ m� 61 i� a o wI p x TestAmedca THE LEADER IN ENVIRONMENTAL TESTING lllltiti�lllllllll�4 �111� �fti�l ltil4 �tttltil1111�ti11�1 Nashville, TN COOLER RECEIPT FORM g$"61a3 Chain of Cuslod Cooler Received/Opened On 2123/2017 Q1000 Time Samples Removed From Cooler 'V Time Samples Placed In Storage (2 Hour Window) 1. Tracking # tl (last 4 digits, FedEx) Courier: _FEDEX IR Gun ID 17960357 pH Strip Lot Chlorine Strip Lot 2. Temperature of rep. sample or temp blank when opened: a" _ Degrees Celsius 3. If Item #2 temperature is 0°C or less, was the representative sample or temp blank frozen? YES NO.. 4. Were custody seals on outside of cooler? r ('�S...NO...NA If yes, how many and where: 5. Were the seals intact, signed, and dated correctly? rE NO ... NA 6. Were custody papers inside cooler? ..NO ... NA I certify that i oL3e ned the cooler and answered q uestionS 1.6 fintia! 7. Were custody seals on containers: YES and Intact YES ... NO ... 6 Were these signed and dated correctly? YES...NO.. I9 8. Packing matt used Bubblewr Plastic bang Peanuts Vermiculite Foam Insert Paper Other None 9. Cooling process: 0 Icb Ice -pack Ice (direct contact) Dry ice Other None 10. Did all containers arrive in good condition (unbroken)? ]Y1=,S�.NO... NA 11. Were all container labels complete (#, date, signed, pres., etc)?.NO...NA 12. Did all container labels and tags agree with custody papers? J YS... NO ... NA 13a. Were VOA vials received? �JS... NO...NA b. Was there any observable headspace present in any VOA vial? YES.6... NA 14. Was there a Trip Blank in this cooler? YES. ..Nq...NA If multiple cooler sequence # I certity that I unloaded the cooler and answered questigns 7.14 fintial ky 15a. On pres'd bottles, did pH test strips suggest preservation reached the correct pH level? YES..NOJO b. Did the bottle labels indicate that the correct preservatives were used 60..NO... NA 16. Was residual chlorine present? YIrS...NO .NA I certify that I checked for chlorine and pH as per SOP and answered_guestions_15.16_ (intiall 17. Were custody papers properly filled out (ink, signed, etc)? I* ... NO ... NA 18. Did you sign the custody papers in the appropriate place? l0..NO... NA 19. Were correct containers used for the analysis requested? 0. 20. Was sufficient amount of sample sent in each container? ...NO ... NA 21. Were there Nan -Conformance issues at login? YES..t' Was a NCM generated? YES.. I&..# HIS = Broken in shipment Cooler Receipt Form.doc LF-1 End of Fonn Page 15 of 20 Revised 12;1 5.,15 3/2/2017 L 60Z/Z/£ OZ;0 96 abed 0d U f M co 'a e— 0 co J (JD d 40 d N cc M CD W N O t N m rn qQ � Ln �v E w roa T T w Q m 4g m O c y m O Zv� W z 2 z a 2 Z x F Q O•o Z 2G U 9 C n E N 0. O SO r�O `o � w s n z ��o mm•Fko m :: m cJiL. �Q€ �ofi $ Soo a xzJ`zz�dF¢�oww% N x-'o ai ` p m O � 0. 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N/A The cooler or samples do not appear to have been compromised or True tampered with. Samples were received on ice. True Cooler Temperature is acceptable. True Received same day of collection; chilling process has begun. Cooler Temperature is recorded. True COC is present. True COC is filled out in ink and legible. True COC is filled out with all pertinent information. True Is the Field Sampler's name present on COC? True There are no discrepancies between the containers received and the COC. True Samples are received within Holding Time (excluding tests with immediate True HTs) Sample containers have legible labels. True Containers are not broken or leaking. True Sample collection date/times are provided. True Appropriate sample containers are used. True Sample bottles are completely filled. True Sample Preservation Verified. N/A There is sufficient vol. for all requested analyses, incl. any requested True MS/MSDs Containers requiring zero headspace have no headspace or bubble is N/A <6mm (1/4"). Multiphasic samples are not present. True Samples do not require splitting or compositing. True Residual Chlorine Checked. N/A TestAmerica Seattle Page 18 of 20 3/2/2017 Login Sample Receipt Checklist Client: City of Federal Way Login Number: 66183 List Number: 2 Creator: Sanchez, Ariel M Question Radioactivity wasn't checked or is </= background as measured by a survey meter. The cooler's custody seal, if present, is intact. Sample custody seals, if present, are intact. The cooler or samples do not appear to have been compromised or tampered with. Samples were received on ice. Cooler Temperature is acceptable. Cooler Temperature is recorded. COC is present. COC is filled out in ink and legible. COC is filled out with all pertinent information. Is the Field Sampler's name present on COC? There are no discrepancies between the containers received and the COC. Samples are received within Holding Time (excluding tests with immediate HTs) Sample containers have legible labels. Containers are not broken or leaking. Sample collection date/times are provided. Appropriate sample containers are used. Sample bottles are completely filled. Sample Preservation Verified. There is sufficient vol. for all requested analyses, incl. any requested MS/MSDs Containers requiring zero headspace have no headspace or bubble is <6mm (1/4"). Multiphasic samples are not present. Samples do not require splitting or compositing. Residual Chlorine Checked. Answer Comment True True True True True True True True True True True True True True True True True True True True True N/A True N/A -0.2 Job Number: 580-66183-1 List Source: TestAmerica Chicago List Creation: 02/22/17 12:26 PM TestAmerica Seattle Page 19 of 20 3/2/2017 Federal Way NOTICE OF MASTER LAND USE APPLICATION AND OPTIONAL DETERMINATION OF NONSIGNIFICANCE (DNS) Project Name: Panther Lake Trail & Amenities Project Description: Proposed construction of paved loop trail around Panther Lake and 41-stall surface parking lot Additional improvements that will be phased as capital budgets allow include restrooms, gazebo, children's play area and other park like amenities. Portions of the trail and park improvements are within regulated wetland buffers and will be mitigated by enhancing the remaining buffer. Applicant: John Mulkey, City of Federal Way — Public Works Department Project Location: 650 SW Campus Drive, Federal Way, WA 98023 / Parcel 1921049003 Application Received: November 15, 2013 Determined Complete: February 6, 2014 Notice of Application: February 7, 2014 Environmental Review: Based upon review of a completed environmental checklist, and other in- formation on file with the city, it is likely that the Responsible Official will determine that the project will not have a probable significant adverse impact on the environment and expects to issue a Deter- mination of Nonsignificance (DNS) for this project. The optional DNS process in WAC 197-11-355 is being used. This may be your only opportunity to comment on the environmental impacts of the pro- posed project. The proposal may include mitiga- tion measures under applicable codes and policies. Additionally, the review process may incorporate or require mitigation measures regardless of whether an environmental impact statement (EIS) is prepared. A copy of the subsequent threshold determination for the specific proposal may be ob- tained upon request. Agencies, tribes, and the public are encouraged to review and comment on the proposed project and its probable environmental impacts. Environmental comments must be submitted by the date noted below. Permits Under Review: Use Process III (File #13-105135-UP) and State Environmental Policy Act (SEPA) Threshold Determination (File #13-105136-SE) Existing Environmental Documents & Required Studies: Final Wetland Inventory Report (July 19, 1999); Strram Inventory (November 29, 2001); Geologic Hazards Map IX-5 (October 2006); Tech- nical Information Report; Critical Area Study; Geo- technical Report; and Environmental Checklist. Development Regulations Used for Project Mitiga- tion: Federal Way Revised Code (FWRC) Title 14, "Environmental Policy;" Title 16 "Surface Water Management," and Title 19, "Zoning and Develop- ment Code" Public Comment & Appeals: Any person may sub- mit written comments on the land use application or the environmental impacts of the proposal to the Director of Community and Economic Develop- ment by 5:00 p.m. on February 24, 2014. Only per- sons who submit written comments to the Director (address below) or specifically request a copy of the decision, may appeal the decision. However, any interested party may appeal the environmental threshold determination. Details of appeal proce- dures for the requested land use decision will be included with the written decision. Issuance of Final Environmental Determination: The final Determination of Nonsignificance (DNS) may be issued without a second comment period, unless timely comments identify probable signifi- cant adverse impacts that were not considered by the Notice of Optional DNS. A copy of the DNS may be obtained upon request. Availability of File: The official project file, existing environmental documents and required studies are available for public review at the Community and Economic Development Department, 33325 8th Avenue South, Federal Way, WA 98003 Staff Contact: Matthew Herrera, Associate Planner 253-835-2638 Published in the Federal Way Mirror February 7, 2014 FWM 2103 . . 31919 1 11 Ave S, Suite 101 1 Federal, Way, WA 98003 1253.925.5565 1253.925.5750 (f) Affidavit of Publication Rudi Alcott, being first duly sworn on oath, deposes and says that he is the Publisher of The Federal Way Mirror, a weekly newspaper. That said newspaper is published in the English language continually as a weekly newspaper in Federal Way, King County, Washington, and is now and during all of said time has been printed in an office maintained by the aforementioned place of publication of said newspaper. That the annexed is a true copy of a legal advertisement placed by City of Federal Way — Economic Development as it was published in regular issues (and not in supplemental form) of said newspaper once each week for a period of one consecutive weeks(s), commencing on the 7th day of February 2014 , and ending on the 7th day of February 2014 , both dates inclusive, and that such newspaper was regularly distributed to its readers during all of said period. That the full amount of the fee charged for the foregoing publication is the sum of 161.50, which amount has been paid in full, or billed at the legal rate according to RCW 65.16.020. Subscribed to and sworn before me this 21 st day of February 2014. Notary Public in and for the State of Washington, Residing at Buckley GI ,a►►►ii}liar S _ i io r `�i� IOU 8% �' h� TS to the following agencies: )EPT OF ECOLOGY iNVIRONMENTAL REVIEW SEC 'O BOX 47703 )LYMPIA WA 98504-7703 epaunit@ecy.wa.gov ;OUTH KING FIRE & RESCUE ;1617 1ST AVE S 'EDERAL WAY WA 98003 :hris.in ham southkin-gfire.or� ;ordon.goodsell@southkingfire.org LARRY FISHER (freshwater) WDFW AREA HABITAT BIOLOGIST 1775 12TH AVE NW STE 201 ISSAQUAH WA 98027 lany.fisher@dfw.wa.gov BRANDON REYNON PUYALLUP TRIBE OF INDIANS HISTORIC PRESERVATION DEPT 3009 E PORTLAND AVE TACOMA WA 98404 brandon.re non u allu tribe.com BRIAN ASBURY LAKEHAVEN UTILITY DIST PO BOX 4249 FEDERAL WAY WA 98063 basbury@lakehaven.org LAURA MURPHY TRIBAL ARCHAEOLOGIST MUCKLESHOOT INDIAN TRIBE 39015 172ND AVE SE AUBURN WA 98092 laura.murphy@muckleshoot.nsn.us 'lease CC email notice to matt.herrera@ciffederalwaYcom; ann.dawer c@cityoffederalway..com; tony.doucette aQcitvoffederalway.com )oc. I.D. CI IY OF v� Federal Way NOTICE OF MASTER LAND USE APPLICATION AND OPTIONAL DETERMINATION OF NONSIGNIFICANCE (DNS) Project Name: Panther Lake Trail & Amenities Project Description: Proposed construction of paved loop trail around Panther Lake and 4I-stall surface parking lot. Additional improvements that will be phased as capital budgets allow include restrooms, gazebo, children's play area and other park like amenities, Portions of the trail and park improvements are within regulated wetland buffers and will be mitigated by enhancing the remaining buffer. Applicant: John Mulkey, City of Federal Way — Public Works Department Project Location: 650 SW Campus Drive, Federal Way, WA 98023 / Parcel 1921049003 Application Received: November 15, 2013 Determined Complete: February 6, 2014 Notice of Application: February 7, 2014 Environmental Review: Based upon review of a completed environmental checklist, and other information on file with the city, it is likely that the Responsible Official will determine that the project will not have a probable significant adverse impact on the environment and expects to issue a Determination of Nonsignificance (DNS) for this project. The optional DNS process in WAC 197-11-355 is being used. This may be your only opportunity to comment on the environmental impacts of the proposed project. The proposal may include mitigation measures under applicable codes and policies. Additionally, the review process may incorporate or require mitigation measures regardless of whether an environmental impact statement (EIS) is prepared. A copy of the subsequent threshold determination for the specific proposal may be obtained upon request. Agencies, tribes, and the public are encouraged to review and comment on the proposed project and its probable environmental impacts. Environmental comments must be submitted by the date noted below. Permits Under Review: Use Process III (File #13-105135-UP) and State Environmental Policy Act (SEPA) Threshold Determination (File #13-105136-SE) Existing Environmental Documents & Required Studies: Final Wetland Inventory Report (July 19, 1999); Stream Inventory (November 29, 2001); Geologic Hazards Map IX-5 (October 2006); Technical Information Report, Critical Area Study; Geotechnical Report; and Environmental Checklist. Development Regulations Used for Project Mitigation: Federal Wiry Revised Code (FWRC) Title 14, "Environmental Policy," 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 or the environmental impacts of the proposal to the Director of Community and Economic Development by 5:00 p.m. on February 24, 2014. Only persons who submit written comments to the Director (address below) or specifically request a copy of the decision, may appeal the decision. However, any interested party may appeal the environmental threshold determination. Details of appeal procedures for the requested land use decision will be included with the written decision. Issuance of Final Environmental Determination: The final Determination of Nonsignificance (DNS) may be issued without a second comment period, unless timely comments identify probable significant adverse impacts that were not considered by the Notice of Optional DNS. A copy of the DNS may be obtained upon request - Availability of File: The official project file, existing environmental documents and required studies are available for public review at the Community and Economic Development Department, 33325 8th Avenue South, Federal Way, WA 98003 Staff Contact: Matthew Herrera, Associate Planner - 253-835-2638 Doc. ID 64964 CITY OF Federal Way DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT 33325 8th Avenue South Federal Way WA 98003 253-835-7000; Fax 253-835-2609 www.cit offederalwa .com DECLARATION OF DISTRIBUTION l �- �. hereby declare, under penalty of perjury of the laws of the State of Washington, that a: ❑ Notice of Land Use Application/Action ❑ Land Use Decision Letter ❑ Notice of Determination of Significance (DS) and Scoping Notice 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 was ❑ mailed ❑ faxed 4L'L-g&- 2014. Project Name File Number(s) ❑ 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 )iq e-mailed and/or ❑ posted to or at each of the attached addresses on Signature Date K:\CD Administration Files\Declaration of Distribution.doc/Last printed 1 /22/2014 240:00 PM -4k CITY OF Federal Way ENVIRONMENTAL DETERMINATION OF NONSIGNIFICANCE (DNS) Panther Lake Trail & Amenities File #13-105136-SE Proposal: Proposed construction of paved loop trail around Panther Lake and 41-stall surface parking lot. Additional improvements that will be phased as capital budgets allow include restrooms, gazebo, children's play area and other park -like amenities. Portions of the trail and park improvements are within regulated wetland buffers and will be mitigated by enhancing the remaining buffer. Applicant: John Mulkey, City of Federal Way — Public Works Department Project Location: 650 SW Campus Drive, Federal Way, WA 98023 / Parcel 1921049003 Lead Agency: City of Federal Way - Community and Economic Development Department Staff Contact: Matthew Herrera - Senior Planner, 253-835-2638 The lead agency for this proposal has determined that it does not have probable significant adverse impact on the environment and an Environmental Impact Statement (EIS) is not required under RCW 43.21 C.032(2)(c). This decision was made after review of a completed environmental checklist, Federal Way Comprehensive Plan, Federal Way Revised Code, 2009 King County Surface Water Design Manual, and other municipal policies, plans, rules, and regulations designated as a basis for exercise of substantive authority under the State Environmental Policy Act Rules pursuant to Revised Code of Washington (RCW) 43.31 C.060. This DNS is issued after using the optional DNS process in WAC 197-11-355. No written comments were received in response to the 14-day comment period that ended February+ 24, 2014._There is no further comment period on the DNS. You may appeal this determination to the Federal Way City Clerk, no later than 5:00 p.m. on April 16, 2014, by a written letter stating the reason for the appeal of the determination and associated fee. You should be prepared to make specific factual objections. Responsible Official: Isaac Conlen, Planning Manager for Patrick Doherty, Director of Community and Economic Development Address: 33325 8`s Avenue South, Federal Way, WA 98003 Date Issued: March 26, 2014 Signature Doc. I.D. 65277 c 4k CITY OF �� Federal Way DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT 33325 8th Avenue South Federal Way WA 98003 253-835-7000; Fax 253-835-2609 www.cit offederalwa .corn DECLARATION OF DISTRIBUTION I hereby declare, under penalty of perjury of the laws of the State of Washington, that a: ❑ Notice of Land Use Application/Action ❑ Notice of Determination of Significarce (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 Interpretatbn ❑ 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 JKe-mailed and/or ❑ posted to or at each of the attached addresses on 2014. Project Name^ 2i File Number(s) J?a_ ib S / :�> 55- Signature Date,- -) K:\CD Administration Fles\Declaration of Distribution.doc/Last printed 1 /22/2014 2:40:00 PM ary or Federal Way NOTICE OF MASTER LAND USE APPLICATION AND OPTIONAL DETERMINATION OF NONSIGNIFICANCE (DNS) Project Name: Panther Lake Trail & Amenities Project Description: Proposed construction of paved loop trail around Panther Lake and 41-stall surface parking lot. Additional improvements that will be phased as capital budgets allow include restrooms, gazebo, children's play area and other park like amenities. Portions of the trail and park improvements are within regulated wetland buffers and will be mitigated by enhancing the remaining buffer. Applicant: John Mulkey, City of Federal Way — Public Works Department Project Location: 650 SW Campus Drive, Federal Way, WA 98023 / Parcel 1921049003 Application Received: November 15, 2013 Determined Complete: February 6, 2014 Notice of Application: February 7, 2014 Subject site r+� r i i Environmental Review: Based upon review of a completed environmental checklist, and other information on file with the city, it is likely that the Responsible Official will determine that the project will not have a probable significant adverse impact on the environment and expects to issue a Determination of Nonsignificance (DNS) for this project. The optional DNS process in WAC 197-11-355 is being used. This may be your only opportunity to comment on the environmental impacts of the proposed project. The proposal may include mitigation measures under applicable codes and policies. Additionally, the review process may incorporate or require mitigation measures regardless of whether an environmental impact statement (EIS) is prepared. A copy of the subsequent threshold determination for the specific proposal may be obtained upon request. Agencies, tribes, and the public are encouraged to review and comment on the proposed project and its probable environmental impacts. Environmental comments must be submitted by the date noted below. Permits Under Review: Use Process III (File #13-105135-UP) and State Environmental Policy Act (SEPA) Threshold Determination (File #13-105136-SE) Existing Environmental Documents & Required Studies: Final Wetland Inventory Report (July 19, 1999); Stream Inventory (November 29, 2001); Geologic Hazards Map D{-5 (October 2006); Technical Information Report; Critical Area Study; Geotechnical Report; and Environmental Checklist. Development Regulations Used for Project Mitigation: Federal Way Revised Code (FWRC) Title 14, `Environmental Policy;" 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 or the environmental impacts of the proposal to the Director of Community and Economic Development by 5:00 p.m. on February 24, 2014. Only persons who submit written comments to the Director (address below) or specifically request a copy of the decision, may appeal the decision. However, any interested party may appeal the environmental threshold determination. Details of appeal procedures for the requested land use decision will be included with the written decision. Issuance of Final Environmental Determination: The final Determination ofNonsignificance (DNS) may be issued without a second comment period, unless timely comments identify probable significant adverse impacts that were not considered by the Notice of Optional DNS. A copy of the DNS may be obtained upon request. Availability of File: The official project file, existing environmental documents and required studies are available for public review at the Community and Economic Development Department, 33325 8th Avenue South, Federal Way, WA 98003 Staff Contact: Matthew Herrera, Associate Planner - 253-835-2638 Doc. I D 64964 Tamara Fix From: Tamara Fix Sent: Wednesday, March 26, 2014 2:00 PM To: 'sepaunit@ecy.wa.gov' Cc: 'Brian Asbury'; Gordon Goodsell; 'Fisher, Larry D (DFW)'; 'bra ndon.reynon@ puya I I u ptri be.co m'; 'laura.murphy@muckleshoot.nsn.us'; Matt Herrera; Ann Dower, Tony Doucette Subject: Panther Lake Trail and Amenities DNS Attachments: 20140326115719.pdf Attached is the DNS for the Panther Lake Trail project. This was issued on March 26, 2014, and the Senior Planner for the project is Matt Herrera, 253-835-2638, matthew.herrera ci offederalwa .com. 7"aatnara Fix Adnzin Asst. City a f Federaf-way tamara.ELxC&citijo ffedera[way.com "When life gives you a hundred reasons to cry, show life that you have a thousand reasons to smile." Unknown Tamara Fix From: janderson@soundpublishing.com on behalf of Mary Lou Goss <mgoss@fedwaymirror.com> Sent: Thursday, February 06, 2014 10:37 AM To: Tamara Fix Subject: Re: Legal Notice -Panther Lake Got it, thanks! Mary Lou Goss Office Coordinator/ Advertising Sales Consultant Office: 253-925-5565, Ext 3056 Internal: 02-3056 31919 1st Ave S, Ste 101, Federal Way, WA 98003 ❑" Sound Publishing, Inc. Map Print Rates Online Rates Media Kit Sound Info On Thu, Feb 6, 2014 at 10:05 AM, Tamara Fix < amara.Fix ci ❑ffederalwa .comma wrote: Please publish the following legal notice (Panther Lake NOA & Opt DNS, 13-105135) in Friday's (Feb. 7, 2014) issue. Please confirm and issue an affidavit of publication. I know these particular notices have been giving you trouble with opening, so I've copied it below. W*13. Federal Way NOTICE OF MASTER LAND USE APPLICATION AND OPTIONAL DETERMINATION OF NONSIGNIFICANCE (DNS) Project Name: Panther Lake Trail & Amenities Project Description: Proposed construction of paved loop trail around Panther Lake and 41-stall surface parking lot. Additional improvements that will be phased as capital budgets allow include restrooms, gazebo, children's play area and other park like amenities. Portions of the trail and park improvements are within regulated wetland buffers and will be mitigated by enhancing the remaining buffer. Applicant: John Mulkey, City of Federal Way — Public Works Department Project Location: 650 SW Campus Drive, Federal Way, WA 98023 / Parcel 1921049003 Application Received: November 15, 2013 Determined Complete: February 6, 2014 Notice of Application: February 7, 2014 Environmental Review: Based upon review of a completed environmental checklist, and other information on file with the city, it is likely that the Responsible Official will determine that the project will not have a probable significant adverse impact on the environment and expects to issue a Determination of Nonsignificance (DNS) for this project. The optional DNS process in WAC 197-11-355 is being used. This may be your only opportunity to comment on the environmental impacts of the proposed project. The proposal may include mitigation measures under applicable codes and policies. Additionally, the review process may incorporate or require mitigation measures regardless of whether an environmental impact statement (EIS) is prepared. A copy of the subsequent threshold determination for the specific proposal may be obtained upon request. Agencies, tribes, and the public are encouraged to review and comment on the proposed project and its probable environmental impacts. Environmental comments must be submitted by the date noted below. Permits Under Review: Use Process III (File 413-105135-UP) and State Environmental Policy Act (SEPA) Threshold Determination (File #13-105136-SE) Existing Environmental Documents & Required Studies: Final Wetland Inventory Report (July 19, 1999); Stream Inventory (November 29, 2001); Geologic Hazards Map IX-5 (October 2006); Technical Information Report; Critical Area Study; Geotechnical Report; and Environmental Checklist. Development Regulations Used for Project Mitigation: Federal Way Revised Code (FWRC) Title 14, "Environmental Policy;" 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 or the environmental impacts of the proposal to the Director of Community and Economic Development by 5:00 p.m. on February 24, 2014.Only persons who submit written comments to the Director (address below) or specifically request a copy of the decision, may appeal the decision. However, any interested party may appeal the environmental threshold determination. Details of appeal procedures for the requested land use decision will be included with the written decision. Issuance of Final Environmental Determination: The final Determination of Nonsignificance (DNS) may be issued without a second comment period, unless timely comments identify probable significant adverse impacts that were not considered by the Notice of Optional DNS. A copy of the DNS may be obtained upon request. Availability of File: The official project file, existing environmental documents and required studies are available for public review at the Community and Economic Development Department, 33325 8th Avenue South, Federal Way, WA 98003 Staff Contact: Matthew Herrera, Associate Planner - 253-835-2638 DEPARTMENT OF COMMUNITY DEVELOPMENT SERVICES 33325 8th Avenue South A�� PO Box 9718 CITY OF Federal Way WA 98063-9718 253-835-7000; Fax 253-835-2609 Federal Way www.cit offederalwa .com DECLARATION OF DISTRIBUTION I,Le;n:�CUhereby declare, under penalty of perjury of the laws of the State of Wa rngton, that a: 'M Notice of Land Use Application/Action ❑ Notice of Determination of Significance (DS) and Scoping Notice 5(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 1101�)2014. Project Name L File Number(s) SignatureDate 2 J K:\PLANNING INTERN\Declaration of Distribution notices\Declaration of Distribution with Posting Sites.doc Posting Sites: Federal Way City Hall- 33325 ah Avenue Federal Way Regional Library- 34200 1st Way South Federal Way 320h Branch Library- 848 South 320th Street Subject Site- �s C7 5�/ ^'� �s ��i�l�-�� \.✓ K:\PLANNING INTERN\Declaration of Distribution notices\Declaration of Distribution with Posting Sites.doc CITY OF FEDERAL WAY DEPARTMENT OF COMMUNITY DEVELOPMENT SERVICES DEVELOPMENT REVIEW COMMITTEE TRANSMITTAL DATE: December 10, 2013 TO: Ann Dower, Development Services Manager Rick Perez, Traffic Scott Sproul, Assistant Building Official Brian Asbury, Lakehaven Utility District Chris Ingham, South King Fire & Rescue FROM: FILE NUMBER(s): RELATED FILE NOS.: PROJECT NAME: PROJECT ADDRESS: ZONING DISTRICT. PROJECT DESCRIPTION: t LAND USE PERMITS - PROJECT CONTACT: Matt Herrera — Planning 13-105135-00-UP None PANTHER LAKE TRAIL & AMENITIES 650 SW CAMPUS DR RS 7.2 Trail improvements around park, including parking lot, driveway, restrooms, signage, gazebo, utilities and other amenities. UPIV and SEPA CITY OF FEDERAL WAY JOHN MULKEY PO BOX9718 MATERIALS SUBMITTED: 1. Engineering Sheets 1-38 2. Survey and Utility Plan (full size) 3. Amenity item packet 4. Environmental Checklist 5. Wetland Memos 6. Geotechnical Report 7. TIR 8. Mailing Envelopes :-1 o o REGULATIONS C c�-� chi Ci n Required aReview y Process n � a o z CD Lot Size w p Rj Front rn Side (each) a 3 a m Rear 0. O ^7 tvi� Lot Coverage R. m - °o w o Height of N a CD 5 " Structure z O � rn Required O ° 0 Parking Spaces a �- G ' t[ > 01 In ?'O W N �' ;"' 0. ti ^. p p CD O' N D. O Q N 7 y 0 m. n . Cn O S.ZTm-=N n z N o g' QG' c �° 9 Q $ a a v 0 0 CD N N- 2. O F4' - 7 `� m C N l J av R• G .-'�O tD O-��'y O O ,0.� (^p C' 0, 0". O .�-, N n O 5 N• E r� 1'FI�/�y H5 wo chi o m o 0 o 0 7 cona o a oo b Cr f°y c G p n m p N N i 7' X 3 w N (�D 2 y N 7 p GQ r m Cr CL o. w co co m e c " ti 4y1 A fG O . o 'O O.v = r N CL o y J- a Er co y C rn o < rn 7 y o m w UJ 0 a t7 Ml o• —< O X_ K Z5, t] ti X rn Oo 0 9 N v ( O O rn ❑ �' ° X h N r o o (4 O El (D w o 0 C. CD 0 O ) � _ � � | §te! ; f BE f ( | \ § ; m tE*ES�zs<3mrrEi \\(\\/Feeej752r-3 0 = - }}) »«§$)kK5 /® » \{{ 7 0 0. 10 0" [` \ k £ ( / / } ( % / A G wy www � <F-Pz- aFFzG w>wu OO LLma�ra+ DIRECTIONS TO PANTHER LAKE PANTHER LAKE OPEN SPACE Iq TRAIL AND PARK IMPROVEMENTS FEDERAL WAY, KING COUNTY, WASHINGTON NE 1/4 SEC. 19, T 21 N, R 4E, W.M. LOCATION MAP VICINITY MAP SHEET INDEX FROM 1-5 NORTHBOUND OR SOUTHBOUND, TAKE 1-5 (EXIT 142B) WEST TO HWY 18 (S 348TH ST). DRIVE WESTBOUND ON HWY 18/S 348TH ST APPROX. 1 MILES WEST OF EXIT. CONTINUE ON SW CAMPUS DRIVE APPROX. 0.5 MILES. PANTHER LAKE OPEN SPACE WILL BE ON THE RIGHT. DATA SOURCE DATUMS & LATITUDE / LONGITUDE KING COUNTY PARCEL DATA: WASHINGTON STATE PLANE, NORTH ZONE, NAVD 1988. HUITT-ZOLLARS FIELD SURVEY: POINT/ELEVATION DATA, WASHINGTON STATE PLANE, NORTH ZONE, NAVD 1988. CITY OF FEDERAL WAY DATA ON WASHINGTON STATE PLANE, GIS AERIAL CONTOURS: NORTH ZONE, NGVD 1929 (CONVERTED TO NAVD 1988).- HORIZONTAL & VERTICAL KING COUNTY SURVEY CONTROL, DATUMS: WASHINGTON STATE PLANE, NORTH ZONE, NAD 83191 THE KING COUNTY POINT DESIGNATED #8817 - CONC. MONUMENT WITH NAIL IN CASE AT THE INTX OF 21 ST AVE, SE & SW 356TH ST., N=106884.2059, E=1261208.919, ELEV,=400,96' THE KING COUNTY POINT DESIGNATED #6889 - CONC. MONUMENT W/ BRASS DISC AT THE INTX. OF ENCHANTED PARKWAY S. & S. 352ND ST., N=10793&8545, E=1273040.28, ELEV.=251.56' THE KING COUNTY POINT DESIGNATED #6876 - CONC. MONUMENT W/ 2" DIA. BRASS DISC AT THE INTX. OF PACIFIC HWY. (SR 99) & S. 344TH ST., N=110582.3422 E=1273113.025, ELEV.=315.73' 'COORDINATE CONVERSION FACTOR FROM NGVD 1929 TO NAVD 19B8 IS +3.54'. CITY OF FEDERAL WAY GIS CONTOURS WERE RAISED 3.54' TO ACHIEVE AN APPROXIMATE MATCH TO KING COUNTY NAVD 1988 DATUM. TRAIL -HEAD LATITUDE: 47°17'39" TRAIL -HEAD LONGITUDE: 122°20'25" 85% SUBMITTAL OESIGNEC DRAWN CHECKED MF DB GS SY7-0 REVISION QATE BY RPPV m � s 12TH r 5 sw 320TH ST S MTH ST to FEDERAL WAY � U 0 LL N Q a. S 348TH ST SW 5TH ST PROJECT AREA Q¢ SCALE:NTS CONTACTS OWNER: ENVIRONMENTAL: CITY OF FEDERAL WAY THE WATERSHED COMPANY PUBLIC WORKS DEPARTMENT 750 6TH STREET SOUTH 33325 8TH AVENUE S KIRKLAND, WA 98033 FEDERAL WAY, WA 98003 CONTACT:HUGH MORTENSEN CONTACT: JOHN MULKEY PHONE: 425-8225242 PHONE: 253-835-2722 GEOTECHNICAL: ENGINEER: LANDAU ASSOCIATES HUITT-ZOLLARS 950 PACIFIC AVENUE, SUITE 515 818 STEWART STREET, SUITE 1120 TACOMA, WA 98402 SEATTLE, WA 98101 CONTACT: ED HEAVEY CONTACT: DON HELLING PHONE: 253-926-2493 PHONE: 206-324-5500 PANTHER LAKE PARK 200 SW CAMPUS DR ctrr of �� FEDERAL WAY, WA 98023 Federal V � 9 S PANTHER LAKE �L y AP QP % \ PROJECT AREA S 348TH ST NTS WATER AND SEWER UTILITIES: LAKEHAVEN UTILITY DISTRICT P.O. BOX 4249 316271ST AVENUE SOUTH FEDERAL WAY, WA 93063 CONTACT: BRIAN ASBURY PHONE: 253-946-5407 ELECTRICAL UTILITY: PUGET SOUND ENERGY CONTACT: ANITA YUROVCHAK PHONE: 253-476-6304 SHEET DRAWING NO. TITLE 1 GI001 COVER SHEET 2 G1002 GENERAL NOTES, LEGEND AND ABBREVIATIONS 3 G1003 CITY OF FEDERAL WAY GENERAL NOTES 4 G1004 KEYMAP 5 GI005 TRAFFIC CONTROL PLAN 6 CG101 JEROSON CONTROL & GRADING PLAN & PROFILE 7 CG102 EROSION CONTROL & GRADING PLAN & PROFILE 8 CG103 EROSION CONTROL & GRADING PLAN & PROFILE 9 CG104 EROSION CONTROL & GRADING PLAN & PROFILE 10 CG105 EROSION CONTROL & GRADING PLAN 11 CG105.1 TRAIL GRADING PROFILE 12 CG106 EROSION CONTROL & GRADING PLAN & PROFILE 13 CG107 EROSION CONTROL & GRADING PLAN & PROFILE 14 CG108 EROSION CONTROL & GRADING PLAN & PROFILE 15 CG109 EROSION CONTROL & GRADING PLAN & PROFILE 16 CG301 RETAINING WALL CROSS SECTIONS 17 CG401 PARKING AREA GRADING PLAN & PROFILE 18 CG402 PARKING AREA EROSION CONTROL PLAN 19 CG501 GRADING DETAILS 20 CG502 EROSION CONTROL & GRADING DETAILS 21 CP101 TRAIL PLAN 22 CP102 TRAIL PLAN 23 CP103 TRAIL PLAN 24 CP104 TRAIL PLAN 25 CP105 TRAIL PLAN 26 CP401 PARKING AREA PLAN 27 CP402 PAVING POINT TABLES 28 CP501 TRAIL DETAILS 29 CP502 FEDERAL WAY STANDARD DETAILS 30 CP503 FEDERAL WAY STANDARD DETAILS 31 CP504 FEDERAL WAY STANDARD DETAILS 32 UT101 PARKING AREA UTILITY PLAN 33 U7102 STORM DRAIN PROFILE 34 UT501 FEDERAL WAY STANDARD DRAINAGE DETAILS 35 M1101 MITIGATION PLAN 36 M102 MITIGATION PLAN 37 M1501 MITIGATION DETAILS 38 M1502 IMITIGATION DETAILS GI: GENERAL INFORMATION CG: CIVIL GRADING CP: CIVIL PAVING UT: UTILITY �I L I�fGATTON RE NOV 14 2013 CITY OF FEDERAL WAY CDS CONTRACTOR'S NOTES: 1. CONTRACTOR SHALL RECORD ANY FIELD DEVIATION FROM ENGINEERING PLAN THESE RECORDS SHALL BE KEPT ON CONSTRUCTION DRAWINGS AND TURNED OVER TO ENGINEER UPON COMPLETION OF PROJECT. THE CONTRACTOR SHALL BE FULLY RESPONSIBLE FOR THE LOCATION AND PROTECTION OF ALL EXISTING A �A UTILITIES AND SHALL VERIFY ALLaR of ��.6 �$ UTILITY LOCATIONS PRIOR TO CONSTRUCTION BY CALLING THE: UNDERGROUND LOCATE LINE: m 1-800-424-5555F A MINIMUM OF 48 HOURS PRIOR TO ANY EXCAVATION HLIlTT7SJLIARS CITY OF FEDERAL WAY DATE PANTHER LAKE OPEN SPACE 10/16/2013 APPROVED BY: COVER SHEET 818 Stewart Street, Suite 1120 (CITY ENGINEER) (OATE) SCALE =25 STH AVE SOUTH Seattle, Washington, 98101 NTS FEDERAL WAY, WA—M Phone (206) 324-5500 Fax (206) 328-1880 - l0FVEL0PMVff ENGMER) {pAnr DRAWING NO. G1001 SHEET 1 OF 38 w� ova= �o me¢ W�NZ_yyyyy S p p LL a H LLya�� LEGEND ABBREVIATIONS EXISTING PROPOSED AC ASPHALTIC CONCRETE MVO MAIN VALVE OPENING ALT ALTERNATE N NORTH _ — _ UNPAVED TRAIL APPROX APPROXIMATE NO NUMBER APWA AMERICAN PUBLIC WORKS NTS NOT TO SCALE WETLAND BOUNDARY ASSOCIATION OC ON CENTER (FROM 1993 BROWN AND CALDWELL REPORT UNLESS OTHERWISE NOTED) ASTM AMERICAN SOCIETY FOR OD OUTSIDE DIAMETER PROPERTY LINE TESTING AND MATERIALS P POWER OR POWER VAULT AVE AVENUE PAVT PAVEMENT _ — F — _ 1 FT CONTOUR BVC BEGIN VERTICAL CURVE PC POINT OF CURVATURE BLDG BUILDING PCC POINT OF COMPOUND CURVE -- TOP OF SLOPE BM BENCHMARK FED PEDESTAL/PEDESTRIAN _ —_ TOE OF SLOPE BFV BUTTERFLY VALVE PI POINT OF INTERSECTION B/P BOTTOM OF PIPE PL PROPERTY LINE s -- SANITARY SEWER PIPE C COMMUNICATION POC POINT OF CONNECTION CB CATCH BASIN PP POWER POLE OR PUGET POWER — W- WATER PIPE CF CUBIC FEET PRC POINT OF REVERSE CURVATURE D D STORM DRAIN PIPE CIP CAST -IN -PLACE PSE PUGET SOUND ENERGY CIP MON CAST -IN -PLACE MONUMENT PT POINT OF TANGENCY CULVERT CJ CENTER JOINT PVC POINT OF VERTICAL CURVE - C CENTERLINE PVI POINT OF VERTICAL TREE, DECIDUOUS CLR CLEAR INTERSECTION ;.:_ TREE, CONIFEROUS CONC CONCRETE PVT POINT OF VERTICAL TANGENT COORD COORDINATE RAN, ROW RIGHT OF WAY ■ STORM DRAIN CATCH BASIN CULVT CULVERT R RADIUS OR RIGHT Q STORM DRAIN MANHOLE CY CUBIC YARD REF REFERENCE D/W DRIVEWAY RIM MANHOLE RIM ELEVATION DEF DEFLECTION RP RADIUS POINT LIGHT POLE DEG DEGREE RT RIGHT DI DUCTILE IRON S/W SIDEWALK Q DIA/DIAM/H DIAMETER S SOUTH OR SLOPE CROSS SECTION CALLOUT DWG DRAWING SD STORM DRAIN 550 E EAST OR ELECTRICAL SF SQUARE FEET EA EACH SEC SECTION EVC END VERTICAL CURVE SDMH STORM MANHOLE ELEV ELEVATION SS SANITARY SEWER EP/EOP EDGE OF PAVEMENT SSMH SANITARY SEWER MANHOLE EQ EQUAL STA STATION ESMT EASEMENT STD STANDARD EXIST EXISTING STL STEEL FH FIRE HYDRANT TBM TEMPORARY BENCH MARK FIN FINISH TEMP TEMPORARY FL FLOW LINE OR FLANGE TESC TEMPORARY EROSION AND FM FORCE MAIN SEDIMENT CONTROL FT FOOT/FEET T/P TOP OF PIPE G GAS TYP TYPICAL GALV GALVANIZED VAP VERTICAL ANGLE POINT GRND GROUND VC VERTICAL CURVE GV GATE VALVE V, VERT VERTICAL IE INVERT ELEVATION W WEST OR WATER IN INCH W/ WITH JB JUNCTION BOX WL WETLAND JT JOINTTRENCH WM WATER MAIN OR WILLAMETTE L LENGTH MERIDIAN LF LINEAR FEET WSDOT WASHINGTON STATE LP LOW POINT DEPARTMENT OF LT LEFT TRANSPORTATION MANUF MANUFACTURER WV WATER VALVE MAX MAXIMUM XING CROSSING MED MEDIUM MH MANHOLE MIN MINIMUM MJ MECHANICAL JOINT MON MONUMENT IN CASE MUTCD MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES 85% SUBMITTAL DESIGNEC DRAWN CHECKED �Ilium= PROJECT GENERAL NOTES 1. PRIOR TO BEGINNING CONSTRUCTION, THE CONTRACTOR SHALL CALL "ONE CALL" (1-800-424-5555) FOR EXISTING UTILITY LOCATIONS. 2. ALL GOVERNMENTAL SAFETY REGULATIONS SHALL BE STRICTLY ADHERED TO, INCLUDING OSHA, WISHA, AND THE WASHINGTON STATE DEPARTMENT OF LABOR AND INDUSTRIES. 3. THE TOPOGRAPHIC PLAN IS BASED ON ISIS DATA PROVIDED BY THE CITY OF FEDERAL WAY. NEITHER THE CITY OF FEDERAL WAY NOR HUITT-ZOLLARS, INC. MAKE ANY CLAIM AS TO ITS ACCURACY. PORTIONS OF THE EXISTING CONDITIONS HAVE BEEN SUPPLEMENTED WITH TOPOGRAPHIC SURVEY INFORMATION BY HUITT-ZOLLARS, INC. 4. AREAS THAT ARE DISTURBED BY THE CONSTRUCTION PROCESS SHALL BE RESTORED TO A CONDITION EQUAL TO OR BETTER THAN WAS PRESENT PRIOR TO CONSTRUCTION. 5. EASEMENTS AND/OR AGREEMENTS TO CONSTRUCT IMPROVEMENTS SHOWN ON NEIGHBORING PROPERTY TO BE OBTAINED BY THE CITY OF FEDERAL WAY. PROJECT CONSTRUCTION NOTES 1. NO GRADING ACTIVITIES ARE ALLOWED WITHIN WETLANDS. 2. THE CONTRACTOR SHALL NOTIFY THE ENGINEER OF ANY DEVIATION FROM THESE CONSTRUCTION PLANS. ANY DEVIATIONS SHALL BE REVIEWED AND APPROVED BY THE OWNER'S REPRESENTATIVE PRIOR TO CONSTRUCTION. 3. TRANSITIONS FROM NEW WORK TO EXISTING GRADES SHALL BE SMOOTH AND PROVIDE POSITIVE DRAINAGE CITY OF FEDERAL WAY SAMPLE CONSTRUCTION SEQUENCE 1. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY, A PRECONSTRUCTION MEETING MUST BE HELD BETWEEN THE CITY FEDERAL WAY, THE APPLICANT AND APPLICANT'S CONSTRUCTION REPRESENTATIVE. 2. FLAG CLEARING LIMITS. 3. INSTALL STABILIZED CONSTRUCTION ENTRANCE. 4. INSTALL FILTER FABRIC FENCE AS INDICATED ON PLAN. 5. INSTALL OFFSITE CATCH BASIN PROTECTION. 6. CONSTRUCT SEDIMENT TRAP/POND. 7. CLEAR AND GRUB AREAS OF THE SITE TO BE ROUGH GRADED OR FILLED. 8. INSTALL INTERCEPTOR SWALES/BERMS AND CHECK DAMS, 9. ROUGH GRADE SITE AND INSTALL STORM CONVEYANCE SYSTEM AND RETENTION/DETENTION FACILITIES. PROVIDE INLET PROTECTION WHERE INDICATED. 10. INSTALL REMAINING UTILITIES AND BUILDING. 11. FINISH GRADE SITE AND CONSTRUCT ASPHALT PARKING AREAS, ACCESS DRIVES, SIDEWALKS, CURBS AND GUTTERS. 12, COMPLETE SITE STABILIZATION IN ACCORDANCE WITH LANDSCAPE PLANS. 13. CLEAN STORM DRAINAGE SYSTEM, ON AND OFF SITE, OF ALL SEDIMENT AND DEBRIS. 14. REMOVE TEMPORARY EROSION CONTROL FACILITIES WHEN SITE IS COMPLETELY STABILIZED. TNC[:UNIPIAu1uN 5n "GC r—T RESPONSIBLE FOR THE LOCATION AND PROTECTION OF ALL EXISTING UTILITIES AND SHALL VERIFY ALL UTILITY LOCATIONS PRIOR TO CONSTRUCTION BY CALLING THE: UNDERGROUND LOCATE LINE:_ 1-800-424-5555 A MINIMUM OF 48 HOURS PRIOR PANTHER LAKE PARK HlI7�LI�RS CITY OF FEDERAL WAY DATE 10/16/2013 PANTHER LAKE OPEN SPACE APPROVED BY". -- GENERAL NOTES LEGEND 200 SW CAMPUS DR CRY OF w.2M 818 Stewart Street, Suite 1120 (CITY ENGINEER) DATE) SCALE NONE AND ABBREVIATIONS FEDERAL WAY, WA 98023 Federal Way M .=-03 Phone (20 )324-55pphingtFax(206)328-1880 (f7EVELOP41EHi E1p�INkERI (oAT-4 WON � Q>t •AirryJ A� ii °s rn y � 'r�ONAL DRAWING NO. G 1002 t09 NO- 151urol SHEET 2 OF 38 w wao� CITY OF FEDERAL WAY GENERAL NOTES 1. ALL CONSTRUCTION SHALL BE IN ACCORDANCE WITH THE FEDERAL WAY REVISED CODE (FWRC), APPLICABLE ORDINANCES, AND THE CITY COUNCIL CONDITIONS OF PROJECT APPROVAL. THESE DOCUMENTS ARE SUPPLEMENTED BY THE STANDARD SPECIFICATIONS FOR ROAD, BRIDGE, AND MUNICIPAL CONSTRUCTION (WSDOT/APWA), THE KING COUNTY ROAD STANDARDS (KCRS), AND THE KING COUNTY SURFACE WATER DESIGN MANUAL (KCSWDM). IT SHALL BE THE SOLE RESPONSIBILITY OF THE APPLICANT AND THE PROFESSIONAL ENGINEER TO CORRECT ANY ERROR, OMISSION, OR VARIATION FROM THE ABOVE REQUIREMENTS FOUND IN THESE PLANS, ALL CORRECTIONS SHALL BE AT NO ADDITIONAL COST OR LIABILITY TO THE CITY OF FEDERAL WAY. 2. THE DESIGN ELEMENTS WITHIN THESE PLANS HAVE BEEN REVIEWED ACCORDING TO THE FEDERAL WAY ENGINEERING REVIEW CHECKLIST. SOME ELEMENTS MAY HAVE BEEN OVERLOOKED OR MISSED BY THE CITY ENGINEERING PLAN REVIEWER. ANY VARIANCE FROM ADOPTED STANDARDS IS NOT ALLOWED UNLESS SPECIFICALLY APPROVED BY THE CITY OF FEDERAL WAY, PRIOR TO CONSTRUCTION, 3. APPROVAL OF THIS ROAD, GRADING, AND DRAINAGE PLAN DOES NOT CONSTITUTE AN APPROVAL OF ANY OTHER CONSTRUCTION (I.E. DOMESTIC WATER CONVEYANCE, SEWER CONVEYANCE, GAS, ELECTRICITY, ETC.) 4. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY, A PRECONSTRUCTION MEETING MUST BE HELD BETWEEN THE CITY OF FEDERAL WAY, THE APPLICANT, AND THE APPLICANT'S CONSTRUCTION REPRESENTATIVE. 5, A SIGNED COPY OF THESE APPROVED PLANS MUST BE ON THE JOB SITE WHENEVER CONSTRUCTION IS IN PROGRESS. 6. CONSTRUCTION NOISE AND ACTIVITY (ON PRIVATE PROPERTY) SHALL BE LIMITED AS PER FWRC (SECTION 19,105.040); NORMALLY THIS IS 7:00 A.M. TO 8:00 P.M., MONDAY THROUGH FRIDAY, AND 9:00 A.M. TO 8:00 P.M. ON SATURDAYS. 7. CONSTRUCTION ACTIVITY WITHIN CITY RIGHTS -OF -WAY SHALL BE LIMITED TO THE HOURS OF 8:30 AM TO 3:00 PM. 8. IT SHALL BE THE APPLICANT'S/CONTRACTOR'S RESPONSIBILITY TO OBTAIN ALL CONSTRUCTION EASEMENTS NECESSARY BEFORE INITIATING OFF -SITE WORK WITHIN THE ROAD RIGHT-OF-WAY. 9. FRANCHISED UTILITIES OF OTHER INSTALLATIONS THAT ARE NOT SHOWN ON THESE APPROVED PLANS SHALL NOT BE CONSTRUCTED UNLESS AN APPROVED SET OF PLANS THAT MEET ALL CITY REQUIREMENTS AND THE REQUIREMENTS OF KCRS CHAPTER 8 ARE SUBMITTED TO THE CITY OF FEDERAL WAY AT LEAST THREE DAYS PRIOR TO CONSTRUCTION. 10. VERTICAL DATUM SHALL BE KCAS OR NGVD-29. 11. GROUNDWATER SYSTEM CONSTRUCTION SHALL BE WITHIN A RIGHT-OF-WAY OR APPROPRIATE DRAINAGE EASEMENTS, BUT NOT UNDERNEATH THE ROADWAY SECTION. ALL GROUNDWATER SYSTEMS MUST BE CONSTRUCTED IN ACCORDANCE WITH THE WSDOT/APWA STANDARD SPECIFICATIONS- 12. ALL UTILITY TRENCHES IN THE RIGHT-OF-WAY SHALL BE BACKFILLED 5/8" CRUSHED ROCK AND COMPACTED TO 95% DENSITY. WHEN TRENCH WIDTH IS 18 INCHES OR LESS, AND IS WITHIN THE TRAVELED WAY, TRENCH WILL BE BACKFILLED WITH CONTROL DENSITY FILL (SELF -COMPACTED FLOWABLE FILL) AS DEFINED BY WASHINGTON AGGREGATES AND CONCRETE ASSOCIATION. THE AGGREGATE WILL BE 3/8-INCH MINUS. 13. ALL ROADWAY SUBGRADE SHALL BE BACKFILLED AND COMPACTED TO 95 % DENSITY IN ACCORDANCE WITH WSDOT 2-06.3. 14. OPEN CUTTING OF EXISTING ROADWAYS IS NOT ALLOWED UNLESS SPECIFICALLY APPROVED BY THE PUBLIC WORKS DIRECTOR AND NOTED ON THESE APPROVED PLANS. ANY OPEN CUT SHALL BE RESTORED IN ACCORDANCE WITH KCRS 8.03(8) 3. 15. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING ADEQUATE SAFEGUARDS, SAFETY DEVICES, PROTECTIVE EQUIPMENT, FLAGGERS, AND ANY OTHER NEEDED ACTIONS TO PROTECT LIFE, HEALTH, AND SAFETY OF THE PUBLIC, AND TO PROTECT PROPERTY IN CONNECTION WITH THE PERFORMANCE OF WORK COVERED BY THE CONTRACTOR. ANY WORK WITHIN THE TRAVELED RIGHT-OF-WAY THAT MAY INTERRUPT NORMAL TRAFFIC FLOW SHALL REQUIRE AT LEAST ONE FLAGGER FOR EACH LANE OF TRAFFIC AFFECTED. ALL SECTIONS OF THE WSDOT STANDARD SPECIFICATIONS 1-07.23 - TRAFFIC CONTROL, SHALL APPLY, 16. CONTRACTOR SHALL PROVIDE AND INSTALL ALL REGULATORY AND WARNING SIGNS PER THE LATEST EDITION OF MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES (MUTCD). 17. ALL UTILITIES SHALL BE ADJUSTED TO FINAL GRADE AFTER PAVING ASPHALT WEARING COURSE. 18. ROCKERIES ARE CONSIDERED TO BE A METHOD OF BANK STABILIZATION AND EROSION ONLY. ROCKERIES SHALL NOT BE CONSTRUCTED TO SERVE AS RETAINING WALLS. ALL ROCKERIES SHALL BE CONSTRUCTED IN ACCORDANCE WITH CFW DRAWING NUMBERS 3-22, 3-23. ROCKERIES MAY NOT EXCEED SIX FEET IN HEIGHT FOR CUT SECTIONS OR FOUR FEET IN HEIGHT FOR FILL SECTIONS UNLESS DESIGNED BY A GEOTECHNICAL OR STRUCTURAL ENGINEER LICENSED IN THE STATE OF WASHINGTON. 85% SUBMITTAL DESIGNED DRAWN CHECKED M. CITY OF FEDERAL WAY EROSION/SEDIMENTATION CONTROL NOTES 1. APPROVAL OF THIS EROSION/SEDIMENTATION CONTROL (ESC) PLAN DOES NOT CONSTITUTE AN APPROVAL OF PERMANENT ROAD OR DRAINAGE DESIGN (I.E. SIZE AND LOCATION OF ROADS, PIPES, RESTRICTORS, CHANNELS, RETENTION FACILITIES, UTILITIES, ETC.). 2. THE IMPLEMENTATION OF THESE ESC PLANS AND THE CONSTRUCTION, MAINTENANCE, REPLACEMENT, AND UPGRADING OF THESE ESC FACILITIES IS THE RESPONSIBILITY OF THE APPLICANT/CONTRACTOR UNTIL ALL CONSTRUCTION IS APPROVED. 3. THE BOUNDARIES OF THE CLEARING LIMITS SHOWN ON THIS PLAN SHALL BE CLEARLY FLAGGED IN THE FIELD PRIOR TO CONSTRUCTION. DURING THE CONSTRUCTION PERIOD, NO DISTURBANCE BEYOND THE FLAGGED CLEARING LIMITS SHALL BE PERMITTED. THE FLAGGING SHALL BE MAINTAINED BY THE APPLICANT/CONTRACTOR FOR THE DURATION OF CONSTRUCTION. 4. STABILIZED CONSTRUCTION ENTRANCES AND WASH PADS SHALL BE INSTALLED AT THE BEGINNING OF CONSTRUCTION AND MAINTAINED FOR THE DURATION OF THE PROJECT. ADDITIONAL MEASURES MAY BE REQUIRED TO ENSURE THAT ALL PAVED AREAS ARE KEPT CLEAN AND TRACKING IN THE ROADWAY DOES NOT OCCUR FOR THE DURATION OF THE PROJECT. 5. THE ESC FACILITIES SHOWN ON THIS PLAN MUST BE CONSTRUCTED PRIOR TO OR IN CONJUNCTION WITH ALL CLEARING AND GRADING ACTIVITIES, AND IN SUCH A MANNER AS TO ENSURE THAT SEDIMENT LADEN WATER DOES NOT ENTER THE DRAINAGE SYSTEM, ADJACENT PROPERTIES, OR VIOLATE APPLICABLE WATER STANDARDS. 6. THE ESC FACILITIES SHOWN ON THIS PLAN ARE THE MINIMUM REQUIREMENTS FOR ANTICIPATED SITE CONDITIONS, DURING THE CONSTRUCTION PERIOD, THESE ESC FACILITIES SHALL BE UPGRADED AND/OR REVISED AS NEEDED FOR UNEXPECTED STORM EVENTS, AND MODIFIED TO ACCOUNT FOR CHANGING SITE CONDITIONS (E.G. ADDITIONAL COVER MEASURES, RELOCATION OF DITCHES AND SILT FENCES, PERIMETER PROTECTION, ETC.). 7. THE ESC FACILITIES SHALL BE INSPECTED DAILY BY THE APPLICANT/CONTRACTOR AND MAINTAINED AS NECESSARY TO ENSURE THEIR CONTINUED PROPER FUNCTIONING. 8. ANY AREAS OF EXPOSED SOILS, INCLUDING ROADWAY EMBANKMENTS, THAT WILL NOT BE DISTURBED FOR SEVEN (7) DAYS DURING THE DRY SEASON OR TWO (2) DAYS DURING THE WET SEASON, SHALL BE IMMEDIATELY STABILIZED WITH THE APPROVED ESC METHODS (I.E. SEEDING, MULCHING, NETTING, EROSION BLANKETS, ETC.). 9. ANY AREA NEEDING ESC MEASURES, NOT REQUIRING IMMEDIATE ATTENTION, SHALL BE ADDRESSED WITHIN SEVEN (7) DAYS, 10. THE ESC FACILITIES ON INACTIVE SITES SHALL BE INSPECTED AND MAINTAINED A MINIMUM OF ONCE A MONTH OR WITHIN 24 HOURS FOLLOWING A STORM EVENT. 11. AT NO TIME SHALL MORE THAN ONE (1) FOOT OF SEDIMENT BE ALLOWED TO ACCUMULATE WITHIN A CATCH BASIN. ALL CATCH BASINS AND CONVEYANCE LINES SHALL BE CLEANED PRIOR TO PAVING. THE CLEANING OPERATION SHALL NOT FLUSH SEDIMENT -LADEN WATER INTO THE DOWNSTREAM SYSTEM. 12, ANY PERMANENT RETENTION/DETENTION FACILITY USED AS A TEMPORARY SETTLING BASIN SHALL BE MODIFIED WITH THE NECESSARY EROSION CONTROL MEASURES AND SHALL PROVIDE ADEQUATE STORAGE CAPACITY. IF THE PERMANENT FACILITY IS TO FUNCTION ULTIMATELY AS AN INFILTRATION SYSTEM, THE FACILITY SHALL NOT BE USED AS A TEMPORARY SETTLING BASIN. NO UNDERGROUND DETENTION TANKS OR VAULTS SHALL BE USED AS A TEMPORARY SETTLING BASIN, 13. COVER MEASURES WILL BE APPLIED IN CONFORMANCE WITH APPENDIX D OF THE KCSWDM. 14, MANAGEMENT PRACTICES PROVIDING SIGNIFICANT TREE PROTECTION (PER FWRC) SHALL BE PROVIDED ON THE ESC PLANS. 15. WET SEASON SPECIAL PROVISIONS, AS DESCRIBED IN SECTION D.5.2 OF APPENDIX D, KCSWDM ARE IN EFFECT OCTOBER 1 THROUGH APRIL 30. PRIOR TO THE BEGINNING OF THE WET SEASON, ALL DISTURBED AREAS SHALL BE REVIEWED TO IDENTIFY WHICH ONES CAN BE SEEDED IN PREPARATION FOR WINTER RAINS. DISTURBED AREAS SHALL BE SEEDED WITHIN ONE WEEK OF THE BEGINNING OF THE WET SEASON. PANTHER LAKE PARK 200 SW CAMPUS DR FEDERAL WAY, WA 98023 LIrY GF Federal Way , m,ko� HUFff ZOLM 618 Stewart Street, Suite 1120 Seattle, Washington, 98101 Phone (206) 324-5500 Faz (206) 328-1880 CITY OF FEDERAL WAY DRAINAGE NOTES 1. PROOF OF LIABILITY INSURANCE SHALL BE SUBMITTED TO THE CITY PRIOR TO, OR AT, THE PRECONSTRUCTION MEETING. 2. ALL PIPE AND APPURTENANCES SHALL BE LAID ON A PROPERLY PREPARED FOUNDATION IN ACCORDANCE WITH WSDOT SPECIFICATIONS. THIS SHALL INCLUDE LEVELING AND COMPACTING THE TRENCH BOTTOM, THE TOP OF FOUNDATION MATERIAL, AND REQUIRED PIPE BEDDING, TO A UNIFORM GRADE SO THAT THE ENTIRE PIPE IS SUPPORTED BY A UNIFORMLY DENSE UNYIELDING BASE. 3. ALL PIPE IN THE ROW THAT IS IN EXCESS OF 18" IN DIAMETER MUST BE PLAIN OR REINFORCED CONCRETE. ADDITIONALLY, IF MORE THAN 100' OF NON -CONCRETE PIPE IS INSTALLED, THE PIPE MUST BE VIDEOED TO VERIFY THE INTEGRITY OF THE COMPLETED SYSTEM. THE CONTRACTOR SHALL PROVIDE A COPY OF THE VIDEO TO THE CITY. 4. STORM PIPE WITHIN THE PUBLIC RIGHT OF WAY SHALL HAVE A MINIMUM DIAMETER OF 12" (8" DIAMETER DUCTILE IRON PIPE MAY BE PERMITTED ON CROSS STREET LATERALS LESS THAN 66 FEET LONG, ONLY TO AVOID UTILITY CONFLICT OR MEET SHALLOW GRADIENT AS APPROVED BY THE PUBLIC WORKS DEPARTMENT). 5. STEEL PIPE SHALL BE GALVANIZED AND HAVE ASPHALT TREATMENT #1 OR BETTER INSIDE AND OUTSIDE. 6. ALL DRAINAGE STRUCTURES, SUCH AS CATCH BASINS AND MANHOLES, NOT LOCATED WITHIN A TRAVELED ROADWAY OR SIDEWALK SHALL HAVE SOLID LOCKING LIDS. ALL DRAINAGE STRUCTURES ASSOCIATED WITH A PERMANENT RETENTION/DETENTION FACILITY SHALL HAVE SOLID LOCKING LIDS. 7. ALL DRIVEWAY CULVERTS LOCATED WITHIN THE RIGHT-OF-WAY SHALL BE OF SUFFICIENT LENGTH TO PROVIDE A MINIMUM 3:1 SLOPE FROM THE EDGE OF THE DRIVEWAY TO THE BOTTOM OF THE DITCH. CULVERTS SHALL HAVE BEVELED END SECTIONS TO MATCH THE SIDE SLOPES. 8. ROCK FOR EROSION PROTECTION OF DITCHES, CHANNELS AND SWALES, WHERE REQUIRED, MUST BE OF SOUND QUARRY ROCK, PLACED TO A DEPTH OF ONE FOOT AND MUST MEET THE FOLLOWING SPECIFICATIONS: 4"-8" ROCK/40%-70% PASSING; 2"-4" ROCK/30%-40% PASSING; AND-2" ROCK/10%-20% PASSING. INSTALLATION SHALL BE IN ACCORDANCE WITH KCRS, OR AS AMENDED BY THE APPROVED PLANS. RECYCLED ASPHALT OR CONCRETE RUBBLE SHALL NOT BE USED. 9. LOTS NOT APPROVED FOR INFILTRATION SHALL BE PROVIDED WITH DRAINAGE OUTLETS (STUB -OUTS), STUB -OUTS SHALL CONFORM TO THE FOLLOWING: A. EACH OUTLET SHALL BE SUITABLY LOCATED AT THE LOWEST ELEVATION ON THE LOT, SO AS TO SERVICE ALL FUTURE ROOF DOWNSPOUTS AND FOOTING DRAINS, DRIVEWAYS, YARD DRAINS, AND ANY OTHER SURFACE OR SUBSURFACE DRAINS NECESSARY TO RENDER THE LOTS SUITABLE FOR THEIR INTENDED USE. EACH OUTLET SHALL HAVE FREE -FLOWING, POSITIVE DRAINAGE TO AN APPROVED STORMWATER CONVEYANCE SYSTEM OR TO AN APPROVED OUTFALL LOCATION, B. OUTLETS ON EACH LOT SHALL BE LOCATED WITH A FIVE-FOOT HIGH, 2 X 4 STAKE MARKED "STORM". THE STUB -OUT SHALL EXTEND ABOVE SURFACE LEVEL, BE VISIBLE AND BE SECURED TO THE STAKE, C. PIPE MATERIAL SHALL CONFORM TO UNDERDRAIN SPECIFICATIONS DESCRIBED IN THE KCRS AND, IF NON-METALLIC, THE PIPE SHALL CONTAIN WIRE OR OTHER ACCEPTABLE DETECTION. D. DRAINAGE EASEMENTS ARE REQUIRED FOR DRAINAGE SYSTEMS DESIGNED TO CONVEY FLOWS THROUGH INDIVIDUAL LOTS. E. THE APPLICANT/CONTRACTOR IS RESPONSIBLE FOR COORDINATING THE LOCATIONS OF ALL STUB -OUT CONVEYANCE LINES WITH RESPECT TO THE UTILITIES (I.E. POWER, GAS, TELEPHONE, TELEVISION). F. ALL INDIVIDUAL STUB -OUTS SHALL BE PRIVATELY OWNED AND MAINTAINED BY THE LOT HOMEOWNER. CITY OF FEDERAL WAY APPROVED BY: (Cm ENGMEER) ENGINEER) IDAR) THE CONTRACTOR SHALL BE FULLY RESPONSIBLE FOR THE LOCATION AND AARL�y PROTECTION OF ALL EXISTING n5 �� p,eeg� UTILITIES AND SHALL VERIFY ALL UTILITY LOCATIONS PRIOR TO g fit' CONSTRUCTION BY CALLING THE: 2 UNDERGROUND LOCATE LINE: n 1-800-424-5555 A MINIMUM OF 48 HOURS PRIOR s1,fIAL 6� TO ANY EXCAVATION DATE PANTHER LAKE OPEN SPACE DRAW NG NO. 10/16/2013 G 1003 SCALE CITY OF FEDERAL WAY GENERAL NOTES JOSNO. 15ma801 NONE I SHEET 3 OF 38 NE 1/4 SEC. 19, T 21 N, R 4E, W.M. 7Tt� WAY SW " BPA TRAIL _ C ?7 06 °st - 0Q , O Lo M r O O, CD � a UV U I _ - - Gam•. • ` PANTHER LAKE 0 \ r` r Q 4 t t _ � U U N cGn KING COUNTY G AQUATIC CENTER NZ IMPROVEMENTS FEDERAL WAY NATIONAL LITTLE LEAGUE FACILITY CG402 U7 101 F PROPOSED PARKING LOT IMPROVEME,, I CG401 C P401 THE CONTRACTOR SHALL BE FULLY i RESPONSIBLE FOR THE LOCATION AND PROTECTION OF ALL EXISTING 't kmQV UJ _ UTILITIES AND SHALL VERIFY ALL 4� UTILITY LOCATIONS PRIOR TO g CONSTRUCTION BY CALLING THE: L S _ NDERGROUND LOCATE 800 424-5555uNE. y z Q U `D SW CAAiPL15 aR1U �� -- ~ SCALE (IN FEE) A MINIMUM OF 48 HOURS PRIOR z V 5 �o SUBMITTAL — � — -- — J 100 200 TO ANY EXCAVATION L DESIGNED MF PANTHER LAKE PARK 1 1U�L�JLLARS CITY OF FEDERAL WAY DATE PANTHER LAKE OPEN SPACE DRAWING NO uW APPROVED BY: 10/16/2013 G1004 200 SW CAMPUS DR CITYOF CITY ENGINEER) (DATE) KEYMAP ice N0. 1510Ra01 DB SCALE DRAWN -� ma�*a wv¢ savor BSeattle, W shin It Suite, 981010 ( n 1 5 CHECKED GS FEDERAL WAY. WA 98023 Federal Way 9 1 = 100 SHEET 4 OF 38 o' SYM REVISION DATE BY APP'D FEDERAL WAY, WA9909J Phone (206) 324-5500 Fax (206) 328-1880 ]x ID'cvELOPs'PNS E�lDiNEERl LDALE) PANTHER LAKE TRAIL CONNECTION NOTES: 1. CONTRACTOR SHALL NOT CLOSE THE BPA TRAIL, PARTIAL BLOCKAGES OF THE TRAIL SHALL BE LIMITED TO NO MORE THAN HALF THE WIDTH OF THE TRAIL (6 FT). AN UNOBSTRUCTED THROUGHWAY FOR TRAIL USERS SHALL BE MAINTAINED. PARTIAL TRAIL BLOCKAGES SHALL BE ATTENDED TO BY A CERTIFIED FLAGGER AND ALL WORK EQUIPMENT AND WORKERS SHALL BE CORDONED BPA TRAIL EX WOOD PEDESTRIAN BRIDGE OFF WITH HIGH VISIBILITY TRAFFIC CONES. i SW I. 2. CONTRACTOR SHALL PLACE CONSTRUCTION WARNING SIGNS ON THE BPA TRAIL IN ADVANCE OF THE WORK SITE (ALL .• +:' W AY DIRECTIONS OF THE BPA TRAIL) PER THE MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES 2009 EDITION, CHAPTER 6. +•y, r {��, �'! ` r 1 / A �t r - 3. ALL NECESSARY AND/OR REQUIRED TRAFFIC CONTROL DEVICES WILL BE IN PLACE PRIOR TO THE BEGINNING OF THE PROJECT CONSTRUCTION, OR ON A DAILY BASIS DURING PROJECT CONSTRUCTION. SIGN MUST BE LEGIBLE AND VISIBLE, AND WILL BE REMOVED AT THE END OF EACH WORK DAY IF NOT APPLICABLE AFTER CONSTRUCTION HOURS. 4. AT THE END OF THE CONSTRUCTION WORK DAY, THE CONTRACTOR SHALL CLEAR ENTIRE WIDTH OF PAVED SECTION AND SHOULDER OF TRAIL OF ANY EQUIPMENT, DEBRIS OR OTHER OBSTRUCTIONS. ANY EQUIPMENT OR DEBRIS LEFT ON SITE SHALL WESTERLY PROJECT SITE ACCESS r F / / BE LOCATED OFF THE PAVED SECTION OF THE TRAIL AND SHALL BE CORDONED OFF WITH HIGHLY VISIBLE CONSTRUCTION % WEST DRIVEWAY ACCESS TO AQUATIC CENTER CONES, ALL NON -APPLICABLE SIGNAGE SHALL BE REMOVED FROM THE SITE AT THE END OF THE WORK DAY, APPLICABLE SIGNAGE MAY REMAIN, PROVIDED IT IS COMPLETELY CLEAR OF THE PAVED TRAIL. 5. ALL CONSTRUCTION EQUIPMENT AND WORKERS CROSSING THE BPA TRAIL SHALL BE ATTENDED TO BY A CERTIFIED FLAGGER. .00,�� 6. THE CONTRACTOR SHALL IMMEDIATELY REMOVE CONSTRUCTION DEBRIS FROM THE BPA TRAIL. TRAIL SHALL BE SWEPT CLEAN, X. PROJECT ACCESS ROUTE PANTHER LAKE 250' 250' PROPOSED TRAIL IMPROVEMENTS KING COUNTY AQUATIC �� _ I SW CAMPUS DRIVE I+— 250' 250' ti '} CENTER SEE PANTHER LAKE TRAIL _ i' ,. © f f PROJECT SITE ACCESS CONNECTION NOTES _ SEE DRIVEWAY ACCESS LOCATIONS (LEFT THIS SHEET) FEDERAL WAY NATIONAL LITTLE LEAGUE FACILITY ♦.. ?+� `'may 1]ri' , .i- i Q "ROAD WORK" PER MUTCD SIGN W20-1 � r ` . � �• 's © 'TRUCK CROSSING" PER MUTCD SIGN WB-6 PROJECT ACCESS ROUTE 1 y ' ��{ `�`' • (� NOTES: N CONTRACTOR SHALL SUBMIT PLANS INDICATING HAUL ROUTES IN USE FOR REVIEWAND APPROVAL PRIOR TO ANY ON -SITE f J MOBILIZATION. HAUL HOURS ARE BETWEEN 8:30 AM TO 3:00 PM, MONDAY THROUGH FRIDAY UNLESS OTHERWISE APPROVED BY THE OWNER. z y 3 w 7 ` 1`` -� _ _ \ _ CONSTRUCTION ACTIVITIES SHALL BE RESTRICTED TO THE HOURS BETWEEN 7:30 AM AND 7:30 PM, MONDAY THROUGH FRIDAY. �'� --� - _ ` ` -` CRiVji7 ~�' '\ WORK ON SATURDAYS SHALL BE RESTRICTED TO THE HOURS BETWEEN 9:00 AM AND 5:00 PM. NO WORK SHALL BE PERMITTED w I PROPOSED PARKING �S lvE�r ON SUNDAYS. LOTIMPROVEMENTS ~��- �� 0 zl EASTERLY PROJECT SITE ACCESS N DRIVEWAY ACCESS TO LITTLE LEAGUE FACILITY w O H w Y 5 o: w z z a THE CONTRACTOR SHALL BE FULLY o_ RESPONSIBLE FOR THE LOCATION AND AARON PROTECTION OF ALL EXISTING ,p UTILITIES AND SHALL VERIFY ALLS'4 UTILITY G LOCATIONS CONSTRUCTION BY CALLING THE: aY � m N UNDERGROUND LOCATE LINE: m w a ¢ Q C A 555 MINIMUM OF 484HORS PRIOR ¢mom 85% SUBMITTAL TO ANY EXCAVATION � w�Crz Nrr3 ?FALL I CITY OF FEDERAL WAY DATE DRAWING NO. DESIGNED MF PANTHER LAKE PARK HUffT-7�. LI,RS 10/16/2013 PANTHER LAKE OPEN SPACE G1005 4 DRAWN DB 200SWCAMPUSDR CITY OF = APPROVED BY: TRAFFIC CONTROL PLAN JOB NO. 15104801 r F z 818 Stewart Street, Suite 1120 (CITY ENGINEER) (��) SCALE zwrx FEDERAL WAY, WA 98023 »va erN +�x.eaura Seattle, Washington, 98101 JQOrwsnd CHECKED GS a era ay reoenssYxr-wcawo3 phone(206)324-5500 Fax (206) 328-1880 NONE SHEET ) OF 38 IL N d M qn ISYM RE1� ON DATA BY APP'D (DEVELOPMENT ENGINEER) (DATE) NE 1/4 SEC. 19, T 21 N, R 4E, W.M. jL � r L - � � r L ^ • 1.. 1i_ •�i` , y' - >, t ^ •i s r , t. r y `�t . - y t + r �y `• J . ' •� ^ ^ • Yr SEE SHEET UT101 FOR ;0 yIc tt'� - DRAINAGE IMPROVEMENTS '� - 1` L �' �s'C�' • i _ -I' Y 1' 't •� _ - -'�" rn . r 4 �S:,t": •-_ern, _ zI .�'il,�` y' �.�` ,t ( - - r t " .. � r .~.-�•� 't ti, � , 'L t I . - 1 I. r � � 1 I • ^ .t. i i , _ Y Y rt r i.1 • 4 -'s .rt•M t. r r zr+/,r^ t.�r• rig 1 G50 \ ;fi r A' %�� r a � <• . � y . yl ti �,� r � - �,,,= `ter' _ � ~ tt r l/ f�. • t ry cr t, R t - - 'fir .\ � 4 \ S- i s� �♦ SEE SHEET CG401 FOR PARKING LOT GRADING PLAN AND PROFILE J 290 - - 280-- p N Z 4 it � J w 0 V � • z 270 - - - t, Lu W O Y 3 T �m w X;Z z a 260 W o w �Q n' N 100+00 oao_= Wye¢ ��g2 �§2z 85% SUBMITTAL 2ooLL DESIGNED MF w;EMNul zaV�,i1 DRAWN DB "z� W W IO' CHECKED GS i� w a'. GYM REVIS e7� N O co N {mp N m UD > �-1 > rn J 5 FINISH GRADE AT c)) w t- w 0- CENTERLINE OF TRAIL a > U) 5 -- L- T1. - --- -- -i�-` ---.-_ EXISTING GRADE AT CENTERLINE OF TRAIL ' o U + w W co W W _ T - U) 290 • ?_ PANTHER LAKE � - r PriC�PpS-D TRAIL KEYMAP LEGEND PROPOSED) �w RETAINING WALL, CUT SECTION RETAINING WALL, FILL SECTION —ELEV PROPOSED MINOR (1 FT) CONTOUR arw PROPOSED MAJOR (5 FT) CONTOUR -- - - EXISTING 1 FT CONTOUR CLEARING BGRUBBING/ CONSTRUCTION LIMITS 8F FILTER FABRIC FENCE OTREES TO BE PROTECTED S-1-Di PROPOSED SLOPE +269.93 PROPOSED SPOT ELEVATION NOTES 4 KEEP ALL CONSTRUCTION EQUIPMENT, MATERIALS, AND ACTIVITIES WITHIN THE SILT FENCE/ CONSTRUCTION LIMITS AREA 2. REMOVE LIMBS GROWING TOWARD EXISTING TRAIL TO 12 FEET ABOVE THE TRAIL SURFACE WITHIN THE SILT FENCE LIMITS- CUT CLEAN AND FLUSH TO TRUNK OF TREE. LOW POINT STA = 105+00.00 _ LOW POINT ELEV = 264.30 1 PVI STA = : 104+50.00 PVI ELEV = 264.30 280 K = 27.58 N 100.00' VC U H W — o. 2 BENCHMARKS/DATUM: N � HORIZONTAL: KING COUNTY SURVEY CONTROL, uj. WASHINGTON STATE PLANE, NORTH ZONE, NAD 83/91. 270 W! W VERTICAL: NAVD 88. CONTRACTOR'S NOTES: —� -' 1. CONTRACTOR SHALL RECORD ANY FIELD DEVIATION FROM ENGINEERING PLAN. THESE RECORDS SHALL BE KEPT ON CONSTRUCTION DRAWINGS AND TURNED OVER TO ENGINEER UPON COMPLETION OF PROJECT. 101+00 102+00 103+00 104+uu HORIZ '"""""" ... "" 0 10 20 40 SCALE (IN FEET) VERT 5 S. Is 10 � �nRON R jl y � N �'ceiTiR1'0 y$m ssl RN>tl. E'� PANTHER LAKE PARK i�-�^_ • 1 l�l 1 1 �� S 200 SW CAMPUS DR CITY OF :-- -' 818StewartStreet,Suite1120 FEDERAL WAY, WA 98023 Federal Way .P. WA9TH Seattle, e003 Phone (206) 324-5500 Washington.Fax (206) 328-1880 CITY OF FEDERAL WAY APPROVED BY: CITY ENGINEER) (DATE) {�YELDPM1$ME1iGINEEFj (DATE) DATE 10/16/2013 Q PANTHER LAKE OPEN SPACE EROSION CONTROL & GRADING PLAN &PROFILE DRAWING JUB tJC7. 151wa01 SCALE 1 " — 20' SHEET F) OF 38 3 0 U 0 m w 0 0 V z a 'wa omaw x < z; =oo� w of �Q So in u — D 0 U NE 1/4 SEC. 19, T 21 N, R 4E, W.M. i _J _1 Orr^ r�7� /'� •1 y i ^ L r r i tr.^ r ' _ tl i .` ri Jr¢�� tjh�y'yy�. i• �' PANTHER LAKE ^fit �r ~��c i r• yrr � l��t • >. •ti�rry�r/'/J/ �. li .�±�r Sy1'r Jos - t ry � � - 3 �_ �. Y r • � I: - r ,,r'-',.: ..r c.Lr •� .� • � � � , r'C^ t r \ a 550 i ■ \ mz y • .S9 r � '-�. �'� •ems .-_ ti ^j_- �j •.:• r '/ {�' r' : �— ':.: � • � -fir �-C` _ r � r' r' . f . I! ' y' • F W ' `!. G5D w w STA L 105+00 _ + ' TRANSITION FROM U)-4. LWLI . = 3 ! �! SECTION 3 TO SECTION 1 - i LOW POINT STA = 105+00.00 LOW POINT ELEV = 264.30 PVI STA = 104+509D I PVI ELEV = 264.30 280 - — A.D. =3.63% - - K = 27.58 100.00' VC 8 270 260 - - 250 104+00 85% SUBMITTAL 1. � N LU FINISH GRADE AT CENTERLINE OF TRAIL I I I r 280 co 0 U 270 w x I � W W LEGEND PROPOSED RETAINING WALL, CUT SECTION RETAINING WALL, FILL SECTION ELEV PROPOSED MINOR (1 FT) CONTOUR �ELE� PROPOSED MAJOR (5 FT) CONTOUR - EXISTING 1 FT CONTOUR CLEARING & GRUBBING/ a Q CONSTRUCTION LIMITS SF FILTER FABRIC FENCE 00 TREES TO BE PROTECTED S=1.0r PROPOSED SLOPE +269.93 PROPOSED SPOT ELEVATION NOTES 1. KEEP ALL CONSTRUCTION EQUIPMENT, MATERIALS, AND ACTIVITIES WITHIN THE SILT FENCE/ CONSTRUCTION LIMITS AREA 2, REMOVE LIMBS GROWING TOWARD EXISTING TRAIL TO 12 FEET ABOVE THE TRAIL SURFACE WITHIN THE SILT FENCE LIMITS. CUT CLEAN AND FLUSH TO TRUNK OF TREE. BENCHMARKS/DATUM: HORIZONTAL: KING COUNTY SURVEY CONTROL, WASHINGTON STATE PLANE, NORTH ZONE, NAD 83191. VERTICAL: NAVD 88. F'F EXISTING GRADE AT CONTRACTOR'S NOTES: ui Wp CENTERLINE OF TRAIL I c ¢ -- —• - — - - -- 260 1. CONTRACTOR SHALL RECORD ANY FIELD DEVIATION c f I FROM ENGINEERING PLAN. THESE RECORDS SHALL CONSTRUCTION RAWINGS AND DUPON TTURNED OVER TO ENGINEER COMPLETION w OF PROJECT. ins 105+00 106+00 107+00 lua�uu NOR¢ 0 10 m ao SCALE (INFEST) VERT 0 25 75 10 THE CONTRACTOR SHALL BE FULLY RESPONSIBLE FOR THE LOCATION AND PROTECTION OF ALL EXISTING aaov TA ,b 09+00 UNDERGROUND 1-800-424-5555 °� I„"� :, A MINIMUM OF 48 HOURS PRIOR SSrOY,tL TO ANY EXCAVATION DESIGNED MF A&Pwwn PANTHER LAKE PARK 1 1U�L1G 1Iv CITY OF FEDERAL WAY °A� PANTHER LAKE OPEN SPACE 10/16/2013 `�. APPROVED BY: EROSION CONTROL & DRAWN DB 200 SW CAMPUS DR CITS'9F _ r 818 Stewart Street, Suite 1120 (CITY ENGINEER) (DATE) SCALE FEDERAL WAY, WA98023 Federal Way F mY. M. Phone(206)3248 00hingtFax(206)326-1880 1" = 20' GRADING PLAN & PROFILE CHECKED GS w.. ne�ncvw Harr Rv I[�YEI.OPSIFxrEr(�J++EER} (OATS) DRAWING NO. CG102 SHEET 7 OF 38 DRAWING NO. CG102 SHEET 7 OF 38 NE 1/4 SEC. 19, T 21 N, R 4E, W.M. r \ �! PANTHER LAKE 0 w _+ m \ y 7 w \ U) \ \ 0 \ r ` W LU w LU G50 ` ++ ■ i y \ + rya 280 _, — 280 c1 0 ( 270 - U N O C7 0 w W05 — — w = o co °¢ U U) z 260 0 � Y F o W Y L71= r yl Of 2 Li1AL z 250 a SV v 'w m FINISH GRADE AT t CENTERLINE OF TRAIL — _NEXISTINGGRADE AT CENTERLINE OF TRAIL —_T I ' I � I I LEGEND [PROPOSED .� RETAINING WALL, CUT SECTION RETAINING WALL, FILL SECTION —ITV. PROPOSED MINOR (1 FT) CONTOUR —ELEV — PROPOSED MAJOR (5 FT) CONTOUR — - EXISTING 1 FT CONTOUR CLEARING & GRUBBING/ CONSTRUCTION LIMITS SF FILTER FABRIC FENCE 00 TREES TO BE PROTECTED S=1,0% PROPOSED SLOPE +26s93 PROPOSED SPOT ELEVATION NOTES 1. KEEP ALL CONSTRUCTION EQUIPMENT, MATERIALS, AND ACTIVITIES WITHIN THE SILT FENCE/ CONSTRUCTION LIMITS AREA, 2. REMOVE LIMBS GROWING TOWARD EXISTING TRAIL TO 12 FEET ABOVE THE TRAIL SURFACE WITHIN THE SILT FENCE LIMITS. CUT CLEAN AND FLUSH TO TRUNK OF TREE, I - 270 d' I I U w _ BENCHMARKS/DATUM: rn w HORIZONTAL: KING COUNTY SURVEY CONTROL, rn WASHINGTON STATE PLANE, NORTH ZONE, NAD 83/91. 260 VERTICAL: NAVD 88. CONTRACTOR'S NOTES: 1- CONTRACTOR SHALL RECORD ANY FIELD DEVIATION FROM ENGINEERING PLAN. THESE RECORDS SHALL BE KEPT ON CONSTRUCTION DRAWINGS AND TURNED OVER TO ENGINEER UPON COMPLETION 250 OF PROJECT, cm+� N A `.N-N A A �m i 'yq�� N N o 109+00 ova= 85% SUBMITTAL =o OYt DESIGNED MF Ili 2M�a DRAWN DB L J 4 p N CHECKED GS RI m.mD 110+00 PANTHER LAKE PARK 200 SW CAMPUS DR FEDERAL WAY, WA 98023 111+00 112+00 HFF 7�T � CITY OF FEDERAL WAY ctrr � 1 ll( L�ff� APPROVED BY:(CITYENGINEER) 018 Stewart Street, Suite 1120 Federal Way.-.98101 phone(206)324-5500 hingf Fax(206) 328-1880 (DEVELOPMENT ENGINEER) THE CONTRACTOR SHALL HE FULLY $� t RESPONSIBLE FOR THE LOCATION AND AAROk PROTECTION OF ALL EXISTINGg UTILITIES AND SHALL VERIFY ALL. p 'yam N UTILITY PRIOR TO a8 a -y Y C CONSTRUCTION BY CALLING THE: CONSTLOCATRUCTION 113+00 &C" �l' 114+00 UNDERGROUND LOCATE LINE: g 4 "°R'Z D 10 20 1-800-424-5555 SCALE (IN FEET) A MINIMUM OF 48 HOURS PRIOR slOmaL vERT 0 25 - 5 10 TO ANY EXCAVATION DATE PANTHER LAKE OPEN SPACE DRAWING NO 10/16/2013 CG103 (DATE) SCALE — EROSION CONTROL & xo" ,S,ORev, (DATE) 1" = 20' GRADING PLAN & PROFILE SHEET 8 OF 38 a U1 z w 0 a w Y a w I a mw a 2 �mo= �mn2 W-z Ill ww 2220 ar Fz� wW,-- J>Ow LL (nay o_ (7 U F w W w w (n 0 0 U Lu - Lu x w w (n 280 270 260 250 114+00 85% SUBMITTAL i DESIGNED MF DRAWN IDSCKED CHEGS SYM _ REVI N E7ATE BY PPT3 m r (O H- FINISH GRADE AT CENTERLINE OF TRAIL a EXISTING GRADE AT CENTERLINE OF TRAIL NE 1/4 SEC. 19, T 21N, R 4E, W.M. o v o r1 � + N r N II O W > .- _ N 11 > w ww 0] N O N W II 11 (n > u > > a a- w w a Q W W > -IL 17EXCONC SPILLWAY TO REMAIN 115+00 '116+00 117+00 116+UU PANTHER LAKE PARK 1 1UFL� UABS, CITY OF FEDERAL WAY 200 SW CAMPUS DR APPROVED EDDY: BBY: CITY OF 81B Stewart Slfee[, Suite 1120 (CITY ENGINEER) Baru /1NAV! wVrN Seattle, Washington, 98101 FEDERAL WAY, WA 98023 Federal Way FEDERAL WAY- WA-03 Phone (206) 324-5500 Fax (206) 328-1880 LEGEND (PROPOSED) a.... RETAINING WALL, CUT SECTION RETAINING WALL, FILL SECTION 0 —ELEV PROPOSED MINOR (1 FT) CONTOUR U t— —ELEV — PROPOSED MAJOR (5 FT) CONTOUR W LU = EXISTING 1 FT CONTOUR cn w _ _ _ CLEARING & GRUBBING/ � �� CONSTRUCTION LIMITS $F FILTER FABRIC FENCE 00 TREES TO BE PROTECTED S=1m0% PROPOSED SLOPE +269.93 PROPOSED SPOT ELEVATION NOTES 1. KEEP ALL CONSTRUCTION EQUIPMENT, MATERIALS, AND ACTIVITIES WITHIN THE SILT FENCE/ CONSTRUCTION LIMITS AREA. Z REMOVE LIMBS GROWING TOWARD EXISTING TRAIL TO 12 FEET ABOVE THE TRAIL SURFACE WITHIN THE SILT FENCE LIMITS. CUT CLEAN AND FLUSH TO TRUNK OF TREE. 280 270 LL BENCHMARKS/DATUM: w HORIZONTAL: KING COUNTY SURVEY CONTROL, WASHINGTON STATE PLANE, NORTH ZONE, NAD 83/91. 260 VERTICAL: NAVD 88. CONTRACTOR'S NOTES: 1- CONTRACTOR SHALL RECORD ANY FIELD DEVIATION FROM ENGINEERING PLAN. THESE RECORDS SHALL BE KEPT ON CONSTRUCTION DRAWINGS AND TURNED OVER TO ENGINEER UPON COMPLETION 250 OF PROJECT, THE CONTRACTOR SHALL BE FULLY ry RESPONSIBLE FOR THE LOCATION AND ofty PROTECTION OF ALL EXISTING t ,h UTILITIES AND SHALL VERIFY ALL UTILITY LOCATIONS PRIOR TO • N CONSTRUCTION BY CALLING THE: '0 SCALE FEET) UNDERGROUND LOCATE LINE: T. C. HORIZ0 10 20 40 1-800-424-5555 SCALE (IN FEET) A MINIMUM OF 48 HOURS PRIOR VERT TO ANY 1EXCAVATION 0 25 5 7-5 10 DATE PANTHER LAKE OPEN SPACE LSHEET ING NO 10/16/2013 CG 104 (DATE) ;DBE EROSION CONTROL & 1sloaam(DATE) 1" = 20' GRADING PLAN & PROFILE 9 OF 38 z a a > o_ 2 �ros ti Z =ooLL ui rii w ui � w' w z amw am v 0 0 U I LU — LU to w 85% SUBMITTAL DESIGNED MF DRAWN DB CHECKED GS PANTHER LAKE PARK 200 SW CAMPUS DR FEDERAL WAY, WA 98023 NE 1/4 SEC. 19, T 21N, R 4E, W.M. 1% CITY OF pa Federal Way E I Y.W°98OD3 f-MUMLM 616 Stewart Street, Suite 1120 Seattle, Washington, 96101 Phone (206) 324-5500 Farx(206)328-1860 CITY OF FEDERAL WAY APPROVED BY. (CITY ENGINEER) SEE SHEET CG106 ENGINEER) LEGEND(PROPOSED)_ ►.WWS RETAINING WALL, CUT SECTION RETAINING WALL, FILL SECTION —ELEV PROPOSED MINOR (1 FT) CONTOUR —ELEV — PROPOSED MAJOR (5 FT) CONTOUR EXISTING 1 FT CONTOUR _ CLEARING & GRUBBING/ CONSTRUCTION LIMITS $K FILTER FABRIC FENCE 00 TREES TO BE PROTECTED S=1.0% PROPOSED SLOPE +262.93 PROPOSED SPOT ELEVATION NOTES 1. KEEP ALL CONSTRUCTION EQUIPMENT, MATERIALS, AND ACTIVITIES WITHIN THE SILT FENCE/ CONSTRUCTION LIMITS AREA. 2, REMOVE LIMBS GROWING TOWARD EXISTING TRAIL TO 12 FEET ABOVE THE TRAIL SURFACE WITHIN THE SILT FENCE LIMITS. CUT CLEAN AND FLUSH TO TRUNK OF TREE. SHEET NOTES:. 1. EXISTING WOOD BRIDGE AREA NOTES A. ALL HEAVY EQUIPMENT TO REMAIN 10' CLEAR OF EXISTING WOOD BRIDGE STRUCTURE B. TAPER TRAIL SURFACING IMPROVEMENTS TO MATCH EXISTING WOOD BRIDGE CROSSING WIDTH, t 6' WIDE. C, WITHIN 10' OF THE EXISTING WOOD BRIDGE, COMPACTION ACTIVITIES SHALL BE PERFORMED WITH SMALL, HAND OPERATED EQUIPMENT. 2. SEE SHEET CG105.1 FOR PROFILES BENCHMARKS/DATUM: HORIZONTAL: KING COUNTY SURVEY CONTROL, WASHINGTON STATE PLANE, NORTH ZONE, NAD 83/91. VERTICAL: NAVD 88. CONTRACTOR'S NOTES: 1. CONTRACTOR SHALL RECORD ANY FIELD DEVIATION FROM ENGINEERING PLAN. THESE RECORDS SHALL BE KEPT ON CONSTRUCTION DRAWINGS AND TURNED OVER TO ENGINEER UPON COMPLETION OF PROJECT. THE CONTRACTOR SHALL BE FULLY RESPONSIBLE FOR THE LOCATION AND PROTECTION OF ALL EXISTING , ppAS&, p UTILITIES AND SHALL VERIFY ALL +. - ULOCATIONS PRIOR TO [A CONSTRUCTION BY CALLING THE UNDERGROUND LOCATE LINE: n 1-800-424-5555 SCALE(INFEET) A MINIMUM OF 48 HOURS PRIOR sg�OYALa 0 10 zo as TO ANY EXCAVATION DATE PANTHER LAKE OPEN SPACE kAWINO 10/16/2013 G105 SCALE EROSION CONTROL&slo1'' = 20' GRADING PLAN 10 OF 38 W J) 280 270 260 250 a try 596' ti=L1 [3'#r 4 �W o� 2 jy N K.2 NE 1/4 SEC. 19, T 21N, R 4E, W.M. FINISH GRADE AT CENTERLINE OF TRAIL , I EXISTING GRADE AT CENTERLINE OF TRAIL 04 ty N N AA 17 W 119+00 120+00 121+00 122+00 280 270 260 LEGEND (PROPOSED) — RETAINING WALL, CUT SECTION RETAINING WALL, FILL SECTION ( EV-- PROPOSED MINOR (1 FT) CONTOUR FLrv— PROPOSED MAJOR (5 FT) CONTOUR - EXISTING 1 FT CONTOUR CLEARING & GRUBBING/ CONSTRUCTION LIMITS ASP FILTER FABRIC FENCE -r l- O TREES TO BE PROTECTED tiS�1.Di PROPOSED SLOPE +26993 PROPOSED SPOT ELEVATION NOTES 1. KEEP ALL CONSTRUCTION EQUIPMENT, MATERIALS, AND ACTIVITIES WITHIN THE SILT FENCE/ CONSTRUCTION LIMITS AREA. 2_ REMOVE LIMBS GROWING TOWARD EXISTING TRAIL TO 12 FEET ABOVE THE TRAIL SURFACE WITHIN THE SILT FENCE LIMITS. CUT CLEAN AND FLUSH TO TRUNK OF TREE. 280 - -- — - — — - - - - — 280 I m N r II 0 270 — u -- — -- - - -_ 270 W O U a ° FINISH GRADE AT N N m co c03 ,n _ _ . CENTERLINE OF TRAIL --..................-... - - .. - — - u7-. fn • M + ; 4"1 N I- W tL �— N II II LU - 11 W II W f/7 m o 0 I I L 205, �,_ ___ '� ti j W i LU BENCHMARKS/DATUM: 5 LU O 260 — —--0°>; r - ` -' - ° f 260 HORIZONTAL: KING COUNTY SURVEY CONTROL, ail t Q Q / WASHINGTON STATE PLANE, NORTH ZONE, NAD 83191. k.� L - w W cn W EXISTING GRADE AT CENTERLINE OF TRAIL ' - VERTICAL: NAVD 88. o - CONTRACTOR'S NOTES: • 1, EX WOOD BRIDGE TO REMAIN 1, CONTRACTOR SHALL RECORD ANY FIELD DEVIATION Y x FROM ENGINEERING PLAN. THESE RECORDS SHALL g l.Cf LL RP KEPT M Cf1NCTRI ICTInN nPAVVINrR ANTI W �JV 1bU TURNED OVER TO ENGINEER UPON COMPLETION zn °10�0 u m� W G4 OF PROJECT, a n �� W ry 4 tu°yji b S b rnm oomp 2 li ~� u~y ?;u'-, 1 HE CONTRACT OR SHALL BE FULLY N lV ;nt RESPONSIBLE FOR THE LOCATION AND PROTECTION OF ALL EXISTING 123+00 ja o�a= 7 N .- . 85% SUBMITTAL =aow� u DESIGNED MF Y DRAWN DB Lua O' CHECKED GS LL m a ] SYM REVISION 124+00 125+00 126+00 UTILITIES AND SHALL VERIFY ALL UTILITY LOCATIONS PRIOR TO CONSTRUCTION BY CALLING THE: in SCALE (IN FEET) UNDERGROUND LOCATE LINE: a a HOftIZO 10, zo Q 1-800-424-5555 0 % SCALE (IN FEET) A MINIMUM OF 48 HOURS PRIOR 'rs"eBA� vERr o zs s Ts 101 TO ANY EXCAVATION PANTHER LAKE PARK _ ///�� jjj�� CITY OF FEDERAL WAY DA7E PANTHER LAKE OPEN SPACE DRAWING NO �. ��MS APPROVED BY: 1 0/16/2013 CG 105.1 200 SW CAMPUS DR CITY OF 818 Stewart Street, Suite 1120 (CITY ENGINEER) (oATE) -SCALE — TRAIL GRADING PROFILE JOB No. s+waa+ 01 FEDERAL WAY. WA98023 Federal Way !`EMALlAve = Phone(206)3246 OOhing[Fax(2 6)328-1880 111 - 2O1 SHEET 11 OF 38 F£OFAR'AuY.NN li 03 l0-`V1:LQPlXN743�a6ISIF@RY (PATq 3 V z w ❑ 0 U 0 0 3 z a 280 270 L _ — - — — U W \ rn 260 —lr =tom NE 1/4 SEC. 19, T 21N, R 4E, W.M. HIGH POINT STA= 128+00,00 HIGH POINT ELEV = 264.38 PVI STA='127+50.00 PVI ELEV = 263.50 A.D. = -1.21 % K = 82.60 i 00.00, VC o o 0 0 + + N N m N w m FINISH GRADE AT m CENTERLINE OF TRAIL S s.u-r° 1 d4- F IpyF� z J; CO R.z w ILL HIGH POINT STA = 129+52.94 HIGH POINT ELEV = 266,59 FVLST1'-E-129±50.00 PVI ELEV = 267.00 A.D.=-3.31% K = 30,25 p N + Li 7U7 > --- — - 280 — 270 I o CD U � � � 1 I ' r , �j PANTHER LAKE I PROPOSED y TRAIL KEYMAP SK'Cangrg--- NTS LEGEND (PROPOSED) �+ RETAINING WALL, CUT SECTION RETAINING WALL, FILL SECTION —ELEV PROPOSED MINOR (1 FT) CONTOUR —ELEV — PROPOSED MAJOR (5 FT) CONTOUR EXISTING 1 FT CONTOUR CLEARING & GRUBBING/ CONSTRUCTION LIMITS SF FILTER FABRIC FENCE (DO TREES TO BE PROTECTED S=1.Di PROPOSED SLOPE +269.93 PROPOSED SPOT ELEVATION NOTES 1. KEEP ALL CONSTRUCTION EQUIPMENT, MATERIALS, AND ACTIVITIES WITHIN THE SILT FENCE/ CONSTRUCTION LIMITS AREA. 2. REMOVE LIMBS GROWING TOWARD EXISTING TRAIL TO 12 FEET ABOVE THE TRAIL SURFACE WITHIN THE SILT FENCE LIMITS. CUT CLEAN AND FLUSH TO TRUNK OF TREE. 1 g96 W _ � BENCHMARKS/DATUM: ESCISTING GRADE AT LU w HORIZONTAL: KING COUNTY SURVEY CONTROL, _ CENTERLINE OF TRAIL, rn WASHINGTON STATE PLANE, NORTH ZONE, NAD 83/91. 260 1 VERTICAL: NAVD 88. I CONTRACTOR'S NOTES: 1. CONTRACTOR SHALL RECORD ANY FIELD DEVIATION FROM ENGINEERING PLAN, THESE RECORDS SHALL BE KEPT ON CONSTRUCTION DRAWINGS AND TURNED OVER TO ENGINEER UPON COMPLETION CR IN I Q. Npy q �prp� ZIA nLy q�pp NN 126+00 5% SUBMITTAL DRAWN CHECKED Izr+UU PANTHER LAKE PARK 200 SW CAMPUS DR FEDERAL WAY, WA 98023 N rb N N 250 OF PROJECT. THE CONTRACTOR SHALL BE FUkY RE&PONWRILE FOR THE LOCATION AND PROTECTION OF ALL EXISTING UTILITIES AND SHALL VERIFY ALL AARfl 18 �Y p vF •� �n$ UTILITY LOCATIONS PRIOR TO r� y 128+00 129+00 130+00 (NFEET) CONSTRUCTION BY CALLING THE. SCALE I HORIz UNDERGROUND LOCATE LINE: a m 20 40 1-800-424-5555 VERT SCALE (IN FEET) A MINIMUM OF 48 HOURS PRIOR in 25 s 7,5 10TO ANYEXCAVATION � m _ ejjj�� CITY OF FEDERAL WAY CITY APPROVED BY: CITY OF 018 Stewart Street, Suite 1120 (CITY ENGINEER) 8101 Federal Way ❑L+IRAALWA.Y,WA98DW 6)32-5500 Washington, C206 Phone (206) 3245500 Fax (206) 32B-1 BB0 {DEVELOAMENT ENGINEER) DATE 1 0/16/2013 (DATE) SCALE (DATE) 1" = 20' PANTHER LAKE OPEN SPACE EROSION CONTROL & GRADING PLAN & PROFILE DRAWING NO - CG 106 im NP. 15161a0l SHEET 12 OF 38 SEE SHEET CG106 280 r7 I U u (fl O � U m LU 270 w w o (n w a z$^^96� w 0 w L=125' < w 260 Y 5 w w� LOW-POINT-STA =-13-1+65.06-, LOW POINT ELEV = 263.97 PVI STA = 131+75.00 PVI ELEV = 263.50 K = 2535 100.00' VC PROPOSED UNDER DRAIN, SEE SHEET NOTE 1 NE 1/4 SEC. 19, T21N, R 4E, W.M. m 0 (7 U w w U) w w U) j HIGH POINT ELEV = 270.55 r r r r 4 PVI STA = 134+50.00 PVI ELEV = 269.90 A.D.=,1.03% K=97.35 -- .- - I I L 100.00, VC �I 280 +lo � N LEGEND (PROPOSED) s RETAINING WALL, CUT SECTION RETAINING WALL, FILL SECTION -ELEV PROPOSED MINOR (1 FT) CONTOUR -ELEV - PROPOSED MAJOR (5 FT) CONTOUR - - - EXISTING 1 FT CONTOUR CLEARING & GRUBBING/ CONSTRUCTION LIMITS -SF- FILTER FABRIC FENCE 00 TREES TO BE PROTECTED S=1.0% PROPOSED SLOPE +269.93 PROPOSED SPOT ELEVATION NOTES 1. KEEP ALL CONSTRUCTION EQUIPMENT, MATERIALS, AND ACTIVITIES WITHIN THE SILT FENCE/ CONSTRUCTION LIMITS AREA. 2. REMOVE LIMBS GROWING TOWARD EXISTING TRAIL TO 12 FEET ABOVE THE TRAIL SURFACE WITHIN THE SILT FENCE LIMITS. CUT CLEAN AND FLUSH TO TRUNK OF TREE. SHEET NOTES: 1, PLACE 12 INCH MINIMUM THICKNESS OF PERMEABLE BALLAST (IN LIEU OF GRAVEL BORROW PER TRAIL SECTION), PER WSDOT STANDARD SPECIFICATION 9-03.9(2), FROM STATION 131+25 TO STATION 132+25. PLACE HIGH STRENGTH GEOTEXTILE FABRIC (MIRAFI 60OX OR EQUIVALENT ON TOP OF PERMEABLE BALLAST PRIOR TO PLACEMENT OF 4 INCH MINIMUM THICKNESS OF CRUSH SURFACING. I FINISH GRADE AT U_ U CEN�ERLINEOF TRAIL w - 270 = BENCHMARKS/DATUM: _ y= 175' " - r ~ I w wn HORIZONTAL: KING COUNTY SURVEY CONTROL, S = 2.3% -� _ --- - f _ - - - - - - - - - - - � WASHINGTON STATE PLANE, NORTH ZONE, NAD 83/91. EXISTING GRADE AT VERTICAL: NAVD 88- CENTERLINE OF TRAIL 1 I CONTRACTOR'S NOTES_ - I _ 260 1, CONTRACTOR SHALL RECORD ANY FIELD DEVIATION FROM ENGINEERING PLAN. THESE RECORDS SHALL BE KEPT ON CONSTRUCTION DRAWINGS AND TURNED OVER TO ENGINEER UPON COMPLETION OF PROJECT yy77 `ve"m N ryN ^ap ~N ryN 'c' 'VN '�� N 1`M�p m`4 Epp nN of ¢d N N M 131+00 Ora= JpNrm _ z 85% SUBMITTAL Qootn N_3 2oaW w� DESIGNED MF 222B DRAWN GW QI-FZLL • LL?.>'C CHECKED GS o[ON F Z S THE CONTRACTOR SHALL BE FULLY RESPONSIBLE FOR THE LOCATION AND PROTECTION OF ALL EXISTING �N p UTILITIES AND SHALL VERIFY ALL eC�p6f Afe' R UTILITY LOCATIONS PRIOR TO CONSTRUCTION BY CALLING THE: " s 132+00 133+00 134+00 135+00 SCALE (IN FEET) "GRIZ 0 10 20 Q UNDERGROUND LOCATE LINE: 1-800-424-5555 o SCALE SIN FEET) IERr 0 25 5 75 10 A MINIMUM OF 48 HOURS PRIOR TO ANY EXCAVATION Ss�o�AL �P PANTHER LAKE PARK Uj Tj'TT'��i A j7 1 iVl 1 1 1C1[v CITY OF FEDERAL WAY DATE 10/16/2013 PANTHER LAKE OPEN SPACE DRAWING NO. CG107 200 SW CAMPUS DR FEDERAL WAY, WA98023 � Federal Way 3EDERAXAVE Y.M 8H FEOENAL WAV, WA TB0 ' 618SIewartStreet,Suite1120 6)32Se.t- 500 ington,98101 phone (206) 32le,Wa Fax (206) 32&1880 APPROVED BY: (CITY ENGINEER) �, Fu,� FR1 (onTE) �a�, SCALE 1" = 20' EROSION CONTROL & GRADING PLAN & PROFILE r+v. ,a,oasal SHEET 13 OF 38 NE 1/4 SEC. 19, T 21 N, R 4E, W.M. 290 PANTHER LAKE �f y loin W W �� +[L �. -� •� .- _ as mil-' - _� `_ 4 `- .— �' _ `— _�--- - N ul J `1! G50 _ I LOW POINT STA=136+00.9D 50 HIGH POINT STA= 136+00,W LOW POINT ELEV = 271,85 I HIGH POINT ELEV = 270,65 -- _-� PV! STA = 13 0 I PVI STA=134+50.00 •..._ ------- PVI ELEV = 272,50— -- PVI ELEV = 269.90 A.D. = 1,70% kD_ = -1.03% K = 515A2 —1 00-co' VC 280 b N o + (D U LU W 7 X1 W = m W w w m 270 260 290 100,00, VC — --- — + g o g � n ti R u'] �u.-- — 280 !Uil _ ff r U j tit w FINISH GRADE AT L v V ` v w m rCENTERLINE OF TRAIL 5 f EXISTING GRADE AT CENTERLINE OF TRAIL U; W I � t7 C7• Zz L LL I G�M1 QF lV n �N Qv tiN Nry c`� N� njN� NN � ,^~•N Flo ~N 1J4+UU 85% SUBMITTAL DRAWN GW CHECKED GS 135+00 PANTHER LAKE PARK 200 SW CAMPUS DR FEDERAL WAY, WA 98023 136+00 137+00 CITY OF MU—M iL+ LL V 818 Stewart Street, Suite 1120 Federal 1Nay asnS fr sAve scorn Seattle, Washington, 98101 FEDERAL WAY, WA9ann3 Phone (206) 324-5500 Fax (206) 328-1880 138+00 CITY OF FEDERAL WAY APPROVED BY: (CITY ENGINEER) (DATE) (DEVELOPMENT ENGINEER) (DATE] PANTHER LAKE w r� .ram i .r��•` ,ram. .. 1 J f PROPOS TRAIL �1 KEYMAP NTS LEGEND (PROPOSED) — — — — RETAINING WALL, CUT SECTION RETAINING WALL, FILL SECTION ELEV — PROPOSED MINOR (1 FT) CONTOUR —ELEV— PROPOSED MAJOR (5 FT) CONTOUR — — — — EXISTING 1 FT CONTOUR CLEARING & GRUBBING/ ^ #� CONSTRUCTION LIMITS SF FILTER FABRIC FENCE 00 TREES TO BE PROTECTED S=1.0% PROPOSED SLOPE +269.93 PROPOSED SPOT ELEVATION NOTES 1, KEEP ALL CONSTRUCTION EQUIPMENT, MATERIALS, AND ACTIVITIES WITHIN THE SILT FENCE/ CONSTRUCTION LIMITS AREA, Z REMOVE LIMBS GROWING TOWARD EXISTING TRAIL TO 12 FEET ABOVE THE TRAIL SURFACE WITHIN THE SILT FENCE LIMITS. CUT CLEAN AND FLUSH TO TRUNK OF TREE. Co C7 U W = BENCHMARKS/DATUM: m mHORIZONTAL: KING COUNTY SURVEY CONTROL, WASHINGTON STATE PLANE, NORTH ZONE, NAD 83191 270 VERTICAL: NAVD 88. CONTRACTOR'S NOTES: 1. CONTRACTOR SHALL RECORD ANY FIELD DEVIATION FROM ENGINEERING PLAN. THESE RECORDS SHALL BE KEPT ON CONSTRUCTION DRAWINGS AND TURNED OVER TO ENGINEER UPON COMPLETION 260 OF PROJECT. THE CONTRACTOR SHALL BE FULLY G 4 g RESPONSIBLE FOR THE LOCATION AND Y.T pip p PROTECTION OF ALL EXISTING N UTILITIES AND SHALL VERIFY ALL UTILITY LOCATIONS PRIOR TO CONSTRUCTION BY CALLING THE: SCALE (IN FEET) 139+00 UNDERGROUND LOCATE LINE: -a a HORIZp 10 ,D 1-800-424-5555azoa� SCALE (IN FEET) A MINIMUM OF 48 HOURS PRIOR �`'ss►axetp�`G. vERr e zs 5 17 10 TO ANY EXCAVATION DATE DR4WINCG 108 10/16/2013 PANTHER LAKE OPEN SPACE SCALE EROSION CONTROL & JOBNO- 1510401 1" = 20' GRADING PLAN & PROFILE I SHEET 14 OF 38 a U W Q ieo�w ❑ a= M 2s 2 0 o W 2221 <F=p z w.ff u=-9 NE 1/4 SEC. 19, T 21 N, R 4E, W.M. ID LU w END Fll C WALL _ =n �� BEGIN FILL WALL — — �� -` " - - STA 141+$U w STA 139s50 _ — rLU ------------- EXBPATRAIL 30 — 2 BEGIN Cur WALL = _..c3a. - STA 139+50 END CUT WALL END PANTHER LAKE TRAIL _ _.. STA 140+40 STA 141+42 p�� •. �``a� � HIGH POINT STA = 140+24.78 HIGH POINT ELEV = 282.62 PVI STA= 140+00.00 300 -- — -- P I ELEV=283-00 ---- - - - - 300 I A.D.=i4.01% K = 24.93 290 co (D U LU W W 2 rn w W rn 280 270 YQ W 139+00 }} Fr o r Lam]( '1i `EXISTING GRADE AT CENTERLINE OF TRAIL', rym NLp N04 ryry CO 85% SUBMITTAL DESIGNED MF DRAWN GW CHECKED GS 140+00 PANTHER LAKE PARK 200 SW CAMPUS DR FEDERAL WAY. WA 98023 141+00 CITY OF 4A Federal Way.El-V—,,.., 290 280 270 HUffFZDLM 818 Stewart Street, Suite 1120 Seattle, Washington, 98101 Phone (206) 324-5500 Fax (206) 328-1880 LEGEND (PROPOSED) — — — RETAINING WALL, CUT SECTION RETAINING WALL, FILL SECTION ELEV PROPOSED MINOR (1 FT) CONTOUR B.Ev PROPOSED MAJOR (5 FT) CONTOUR - — EXISTING 1 FT CONTOUR CLEARING & GRUBBING/ CONSTRUCTION LIMITS SF FILTER FABRIC FENCE 00 TREES TO BE PROTECTED S-1 of PROPOSED SLOPE +269L 93 PROPOSED SPOT ELEVATION NOTES t KEEP ALL CONSTRUCTION EQUIPMENT, MATERIALS, AND ACTIVITIES WITHIN THE SILT FENCE/ CONSTRUCTION LIMITS AREA. 2. REMOVE LIMBS GROWING TOWARD EXISTING TRAIL TO 12 FEET ABOVE THE TRAIL SURFACE WITHIN THE SILT FENCE LIMITS. CUT CLEAN AND FLUSH TO TRUNK OF TREE, BENCHMARKS/DATUM: HORIZONTAL: KING COUNTY SURVEY CONTROL, WASHINGTON STATE PLANE, NORTH ZONE, NAD 83/91. VERTICAL: NAVD 88. CONTRACTOR'S NOTES: 1. CONTRACTOR SHALL RECORD ANY FIELD DEVIATION FROM ENGINEERING PLAN. THESE RECORDS SHALL BE KEPT ON CONSTRUCTION DRAWINGS AND TURNED OVER TO ENGINEER UPON COMPLETION OF PROJECT. THE CONTRACTOR SHALL BE FULLY RESPONSIBLE FOR THE LOCATION AND PROTECTION OF ALL EXISTING UTILITIES AND SHALL VERIFY ALL, T RAyy1 UTILITY LOCATIONS PRIOR TO SCALE (IN FEET) CONSTRUCTION BY CALLING THE: A HORIZ UNDERGROUND LOCATE LINE: tea. 10 za 40 1-800-424-5555 SCALE ON FEET) VERT A MINIMUM OF 48 HOURS PRIOR �ONAL o zs s Ts 1e TO ANY EXCAVATION C17Y OF FEDERAL WAY DAB PANTHER LAKE OPEN SPACE DRAWING NO, APPROVED BY: 10/16/2013 CG 109 (CITY ENGINEER) (°ATE) SCALE EROSION CONTROL & JOB NO. 151IN801 tt1EV opmEhrENGumFm (DAB V = 20' GRADING PLAN & PROFILE I SHEET 15 OF 38 4' HIGH VINYL COATED -,N11i CHAIN LINK FENCE TEMP. SILT FENCE EXIST GRADE (VARIES) m REMOVE ALL LIMBS GROWING TOWARDS TRAIL TO 12' ABOVE TRAIL SURFACE; CUT CLEAN & FLUSH TO TRUNK 10' PAVED TRAIL SEE DETAIL 2, DWG CG501 RIGHT SHOULDER Q TRAIL Z f 2% SLOPE B (TOWARD LAKE) r J c7 ar LEFT v DULDER . r-VARIES,- i REMOVE ALL LIMBS GROWING TOWARDS TRAIL TO 12' ABOVE TRAIL SURFACE; CUT CLEAN & FLUSH TO TRUNK -----..------------ � J J Z IU PAVED TRAIL Q ¢ SEE DETAIL 2, DWG CG501 W YW`�`` RIGHT LEFF c7 4' HIGH VINYL COATED SHOULDER SHOULDER TRAIL CHAIN LINK FENCE 2• 2. TEMP. SILT FENCE 2% SLOPEII LEXIST GRADE 1� (TOWARD LAKE)r 7 f EXIST GRADE (VARIES) EXIST GRADE ! _ !E (VARIES) (VARIES) r ( ! MEET AND MATCHMATCH EXIST GRADE, TYP, MEET AND MSE WALL - -'- MSE WALL EXIST GRADE, TYP. T � GRAVITY BLOCK WALL / 1� CUT AND FILL WALL SECTION CG301 (NTS) NOTES: A THIS TRAIL GRADING SECTION APPLIES TO CUT AND FILL WALL SEGMENT FROM STATION 139+50 TO 140+30 OF THE PROPOSED TRAIL ALIGNMENT, B. SEE CUT AND FILL WALL PROFILES, THIS SHEET, C- ADJUST THE RIGHT GRAVEL SHOULDER AND/OR SIDE SLOPE TO AVOID DRAINAGE DITCH ALONG THE EAST (RIGHT) SIDE OF TRAIL. 290 I 1 285 ; 280 3 4 275 c� U f EXISTING GROUND AT WALL }y i = ti-PROPOSED GRADE C = ¢ AT BASE OF WALL m L (TRAIL ELEV) wQ LLLL¢ 290 i ` 285 1:280 mr +-La tY ru 275 N 0+00 1+00 1+10 0 5 CUT WALL PROFILE CG301 BEGIN STA= 139+50 (PLT) END STA= 140+30 (PLT) y APPROX MAX HEIGHT=±4.0' o AVG HEIGHT= 3'-5" APPROX AREA OF EXPOSED WALL FACE= 300 SF w Y 5 r a ru oP�= wNpQ M 85% SUBMITTAL N�� =oo�t1 DESIGNED MF w� M�Ma DRAWN DB QrrZ'1 w¢oNw CHECKM GS ,�Na�� SYM iH PANTHER LAKE PARK 200 SW CAMPUS DR FEDERAL WAY, WA 98023 FILL WALL SECTION CG301 (NTS) NOTES: A THIS TRAIL GRADING SECTION APPLIES TO FILL WALL SEGMENT FROM STATION 140+30 TO 141+20 OF THE PROPOSED TRAIL ALIGNMENT. B. SEE FILL WALL PROFILE, THIS SHEET. 290 i 285 - 280 275 H Q QLU w 270 u H = fn W R z W LL 265 Fp 0+00 SHEET NOTES: 1. GRAVITY BLOCK WALL TYPE (CUT WALL) TO BE DETERMINED 2. MSE (MECHANICALLY STABILIZED EARTH) WALL TYPE (FILL WALL) TO BE DETERMINED 290 285 I r ' I �T 275 I I - t — 270 r `o Cym [NCI cr ;� 4� FILL WALL PROFILE C� G301/ BEGIN STA= 139+50 (PLT) END STA= 141+20 (PLT) APPROX MAX HEIGHT=±4.0' AVG HEIGHT= 3-5" APPROX AREA OF EXPOSED WALL FACE= 600 SF 1+00 k H jj"F'ML� CITY OF FEDERAL WAY 1 lul 1 1 APPROVED BY: iTY :fir 818 Stewart Street, Suite 1120 (CITY ENGINEER) Federal Way�I°rnA Seattle, Washington, 98101 FE,Wr. W�. Phone (206) 324-5500 Fax (206) 328-1880 [oEUELOPMENT EIMNEM 265 2+00 2+10 THE CONTRACTOR SHALL BE FULLY RESPONSIBLE FOR THE LOCATION AND PROTECTION OF ALL EXISTING AARQV UTILITIES L TILITY LOCATIONS PRIOR TO U CONSTRUCTION BY CALLING THE: °r UNDERGROUND LOCATE LINE: ro T a 1-800-424-5555 kQ " A MINIMUM OF 48 HOURS PRIOR Ss�QxL a gefi TO ANY EXCAVATION DATE PANTHER LAKE OPEN SPACE DRAWNGNO- 9A-M SCALE RETAINING RETAINING WALL CROSS SECTIONS JOB NO. CG301 jjn, NONE SHEET 16 OF 38 +" t r • SEE DWG NO. CG101 FOR TRAIL PLAN I 7 t I �f �. I �j�;r�v: AAA �1 r .r�r+• •�� ',.f� �r4 S-04 yie fyx}tom ,p is ti q1� 10'�AVIED USE PATI RADA LANDINGk ! 7 NE 1/4 SEC. 19, T 21 N, R 4E, W.M. PAD FOR FUTURE t RESTROOM 4�� Ar 20 E1. 41 STALL IN /' S- i �Si: • . , ' 14+00 3 gaSli f PARKING LOT r A 90; 13+00 s1 12+00 - �; _ _ ad 'I f r ❑ �J L y sZ; .PS I 280 O1 0 W rn r , + N v IT 14 Q I C1 U) \ �, 270 - - --�. L=31' z w 0 0 a U I Do DO N(N0 � 00 1 w mW 1-- ,p G) m 03 mA N CD NN+ 0 + + N to N 11 IT .R W 1I fn UJ 111 CD 111 \ a g=-1. 1eg� 5=,1.09h =i. - S=-2.0%' L=39' \ L=39' L=3W L= L= z 280 c� o y� w ' _ w x� 280 a I 0 cc . 270 \ u > LU i U) w =4.1y > 7 �^y l-, oj I I N 14+00 13+00 o a= 7<v w�v¢ <oo2 85% SUBMITTAL • M2 DESIGNED MF u 222<§ <F=pz DRAWN GW w>ouw1 CHECKED GS LL y a� SYM REVISION GATE 0, 260 PANTHER LAKE - �PROI�1sED • TRAIL KEYMAP u n NTS LEGEND (PROPOSE RETAINING WALL, CUT SECTION RETAINING WALL, FILL SECTION �F_[.EV — PROPOSED MINOR (1 FT) CONTOUR —ELEV — PROPOSED MAJOR (5 FT) CONTOUR — — EXISTING 1 FT CONTOUR CLEARING & GRUBBING/ CONSTRUCTION LIMITS ^SFl� FILTER FABRIC FENCE [ ;.[.Yf• � TREES TO BE PROTECTED s--L13% PROPOSED SLOPE +26993 PROPOSED SPOT ELEVATION NOTES 1. KEEP ALL CONSTRUCTION EQUIPMENT, MATERIALS, AND ACTIVITIES WITHIN THE SILT FENCE/ CONSTRUCTION LIMITS AREA. 2. REMOVE LIMBS GROWING TOWARD EXISTING TRAIL TO 12 FEET ABOVE THE TRAIL SURFACE WITHIN THE SILT FENCE LIMITS. CUT CLEAN AND FLUSH TO TRUNK OF TREE, BENCHMARKS/DATUM: HORIZONTAL: KING COUNTY SURVEY CONTROL, WASHINGTON STATE PLANE, NORTH ZONE, NAD 83/91. VERTICAL: NAVD 88. CONTRACTOR'S NOTES: 1. CONTRACTOR SHALL RECORD ANY FIELD DEVIATION FROM ENGINEERING PLAN. THESE RECORDS SHALL BE KEPT ON CONSTRUCTION DRAWINGS AND TURNED OVER TO ENGINEER UPON COMPLETION OF PROJECT. THE CONTRACTOR SHALL BE FULLY RESPONSIBLE FOR THE LOCATION AND PROTECTION OF ALL EXISTING UTILITIES AND SHALL VERIFY ALL UTILITY LOCATIONS PRIOR TO CONSTRUCTION BY CALLING THE: SCALE (IN FEET) UNDERGROUND LOCATE LINE: 1 0 R'Z0 10 211 1 1-800-424-5555 SCALE (IN FEET) A MINIMUM OF 48 HOURS PRIOR NVIzRT o zs s %iiim so TO ANY EXCAVAWN HUFFZOLMS CITY OF FEDERAL WAY DATE PANTHER LAKE OPEN SPACE PANTHER LAKE PARK 10/16/2013 200 SW CAMPUS DR (:ITMa: � 818StewartStreet,Suite 1120 APPROVEDBY:(CITYENGINEER) (DATE) SCALE PARKING AREA GRADING FEDERAL WAY, WA98023 Federal Way. wA,wA som Fhor*CM3324--5rW�aBahingtFax (206)328-1880 20' PLAN & PROFILE {IIGVF}DPa,$Jli ENGNEHRI (�IYEj 12+00 11+00 v m m� 10+00 - 4RON DRAWING NO CG401 JOBNO- 1610E801 SHEET 17 OF 38 NE 1/4 SEC, 19, T 21N, R 4E, W.M. I i- r i .•`( n .. !� I TRAIL N KEYMAP NTS LEGEND (PROPOSED) RETAINING WALL, CUT SECTION RETAINING WALL, FILL SECTION ELEV PROPOSED MINOR (1 FT) CONTOUR —ELEV — PROPOSED MAJOR (5 FT) CONTOUR EXISTING 1 FT CONTOUR 4�q� f - „ j . , _.. _ -•i� i L __—_ CLEARING & GRUBBING/ CONSTRUCTION LIMITS SF FILTER FABRIC FENCE REMOVE EXISTING WOOD \ BOLLARDS TO PROVIDE 00 TREES TO 8E PROTECTED CONSTRUCTION ACCESS TO DIKE- REPLACE WITH NEW, SIMILAR PROPOSED SLOPE BOLLARDS AT EXISTING LOCATION AS PART OF SITE RESTORATION zsasa PROPOSED SPOT ELEVATION %— — NOTES 7, KEEP ALL CONSTRUCTION EQUIPMENT, MATERIALS, AND ACTIVITIES WITHIN THE SILT FENCE/ r TEMPORARY CONSTRUCTION CONSTRUCTION LIMITS AREA SEDIMENT TRAP 2- REMOVE LIMBS GROWING TOWARD EXISTING TRAIL TO 12 FEET ABOVE THE TRAIL SURFACE WITHIN THE SILT FENCE LIMITS. CUT CLEAN AND FLUSH TO TRUNK OF TREE ti. `Y r.. •, RELOCATE WOODEN POLE BARRIERS (2), SWING GATES (2) AND GATE POSTS '- = y�(f�_ _� t ! Y i T;r . `• - (2). CONTRACTOR SHALL COORDINATE �- _ - - ` ' yr •.fir ]i �+� • ! aArC GATE PLACEMENT WITH OWNER rr •� ` _r K: �- �: - — - �� . BENCHMARKS/DATUM: k^ :; Fr HORIZONTAL: KING COUNTY SURVEY CONTROL, WASHINGTON STATE PLANE, NORTH ZONE, NAD 83/91, `R \ VERTICAL: NAVD 88. CONTRACTOR'S NOTES:. 1. CONTRACTOR SHALL RECORD ANY FIELD DEVIATION FROM ENGINEERING PLAN. THESE RECORDS SHALL ` BE KEPT ON CONSTRUCTION DRAWINGS AND TURNED OVER TO ENGINEER UPON COMPLETION OF PROJECT- - - - - - T - l -� _ THE CONTRACTOR SHALL BE FULLY RESPONSIBLE FOR THE LOCATION AND PROTECTION OF ALL EXISTING A *RpH A I ~ 7 VERIFY ALL UTILITY OCAT ONS PRIOR TO 3 *y - a Al -- --44-----nn -^A --- - nn -- -q•\ M - —- -- 1',. CONSTRUCTION BY CALLING THE: �If UNDERGROUND LOCATE LINE: g v 1-800-424-5555�� = SCALE (IN FEE A MINIMUM OF 48 HOURS PRIOR GOAL ' 85% SUBMITTAL N o 10 an TO ANY EXCAVATION j Tj i�%nTi/�j��' CITY OF FEDERAL WAY DATE PANTHER LAKE OPEN SPACE DRAWING NO. DESIGNED MF PANTHER LAKE PARK ll—lll`,11 '�L/1�JUARS 10/16/2013 CG402 >N DRAWN DB 200 SW CAMPUS DR CITY OF �� APPROVED BY: scALE B16 Stewart Street, Suite 1120 (CITY ENGINEER) (DATE, PARKING AREA EROSION CONTROL JOB N0. 15104801 eLL FEDERAL WAY, WA 98023 Federal Way 3uzsarn RUE smnry Seattle, Washington, 96101 eI _ n CHECKED GS FED,-L. , l ...3 Phone (206) 324-5500 Fax (206) 328-1880 (DEVELOPMENT ENGINEER) (DATE) 1 — 20 SHEET 18 OF 38 SYM REVISION DATE BY APPD REMOVE ALL LIMBS GROWING TOWARDS TRAIL TO 12' ABOVE TRAIL SURFACE; CUT _ _ _ _ _ CLEAN &FLUSH TO TRUNK r _ _ _ _ _ _ r= TEMP. SILT FENCE PER 10' PAVED TRAIL MAX EROSION CONTROL PLAN 45° TAMPED (WIDTH MAY VARY BASED M t7 EDGE, FLUSH ON TOP OF DIKE WIDTH) TEMP. SILT FENCE PER y W/ EDGE, TYP. EROSION CONTROL PLAN ¢ 10' PAVED TRAIL HYDROSEED SLOPE, TYP. TRAIL LU RIGHT LEFT v SEE TABLE THIS SHEET TEMP. SILT FENCE PER EXIST DIKE v3HOULDER GRADE (VARIES) SHOULDER TRAIL MEET AND MATCH EROSION CONTROL PLAN EXIST GRADE, TYP, 1 2 2• r EXIST GRADE EXIST DIKE TEMP. SILT FENCE PER ! (VARIES) GRADE (VARIES) 2% (TOWARD LAKE) EROSION CONTROL PLAN 1 i! 2% SLOPE 2 -_ - -_ -- -_- -_- -_ --_- - -__ -_ -- - - 6 (TOWARD LAKE) - _- _- _- PAVED TRAIL SECTION ON DIKE cs5o1 (NTS) 2 PAVED TRAIL SECTION _ cs5a1 (NTS) 1O 2" HMA CLASS 1/2" PER WSDOT 5-04, 9-02, AND 9-03 O2 4" CRUSHED SURFACING BASE COURSE PER WSDOT 9-03.9(3), COMPACTED TO 95% MODIFIED PROCTOR 0 3 12" MIN. GRAVEL BORROW PER WSDOT 9-03.14(1), COMPACTED TO 95% MODIFIED PROCTOR. SUBSTITUTE WITH PERMEABLE BALLAST PER WSDOT 9-03.9(2), BETWEEN STATIONS 131+25 AND 132+25. SEE DWG CG107 O SUBGRADE FOR SURFACING PER WSDOT 2-06.3(1) OSTRIP EXIST, TOPSOIL TO DEPTH REQUIRED TO REACH SUITABLE SUBGRADE FOR TRAIL PAVEMENT. DISPOSE OF ALL STRIPPINGS AT AN APPROVED LOCATION. O4" CRUSHED SURFACING PER WSDOT 9-03.9(3), COMPACTED TO 95% MODIFIED PROCTOR REMOVE EXISTING 4" CRUSHED ROCK AND ORGANIC MATERIAL. 2 10' SIDEWALK TO TRAIL HYDROSEED SLOPE, TYP. 12' PAVED TRAIL HYDROSEEDED SEE TABLE THIS SHEET TRAIL MEET AND MATCH 4' HIGH VINYL COATED EXIST GRADE, TYP. CHAIN LINK FENCE EXIST GRADE (VARIES) 1 EXISTING 2% SIDEWALK ICE=~=.i— G - =•T�� T I r� 4 1 FRONTAGE MULTI -USE TRAIL �,CS501)(NTS) p63 o� 3N� w�^ 85% SUBMITTAL DESIGNED MF wSd.uj � Lij V! DRAWN DB a rF LLQaj CHECKED GS SYM RI PANTHER LAKE PARK 200 SW CAMPUS DR FEDERAL WAY. WA 98023 CITY or Federal Way FF ERAL'WAY,WA,-.. to' PAVED TRAIL (P TRAIL MEET AND MATCH EXIST GRADE, TYP. 1 EXIST GRADE 2 o (VARIES) 3 PARK ENTRANCE TRAIL SECTION C5501 (NTS) REMOVE ALL LIMBS GROWING TOWARDS TRAIL TO 12' ABOVE TRAIL SURFACE; CUT CLEAN & FLUSH TO TRUNK r J 0 J Z (� Z 10' PAVED TRAIL Q U LEFT RIGHT w SHOULDER HOULDE v TRAILCL jj 2. 2 U2% 1 2%SLOPE �1 (TOWARD LAKE) 6 - -. wo wwvwii4�l 3 5 PAVED TRAIL SECTION (BYPASS) cs5o1 (NTS) HUFff ZOLIARS 818 StewartStreet, Suite 1120 Seattle, Washington, 98101 Phone (206) 324-5500 Fax (206) 328-1880 CITY OF FEDERAL WAY APPROVED BY: (CITY ENGINEER) (t)ATE) MEVELOPMENT ENG N`EER) I�TE1 TEMP_ SILT FENCE PER EROSION CONTROL PLAN THE CONTRACTOR SHALL BE FULLY RESPONSIBLE FOR THE LOCATION AND , ,1RpN PROTECTION OF ALL EXISTING `t p UTILITIES AND SHALL VERIFY ALL UTILITY LOCATIONS PRIOR TO CONSTRUCTION BY CALLING THE: UNDERGROUND LOCATE LINE: ha 1-800-424-5555 A MINIMUM OF 48 HOURS PRIOR TO ANY EXCAVATION DATE DRAWING NO 10/16/2013 PANTHER LAKE OPEN SPACE CG501 SCALE GRADING DETAILS JOB NO IS104801 NONE I I SHEET 19 OF 38 3 0 W r w Y s w z a W Q Km�W J �2Oa vm =oo� GF1— �QSy LLroo_D. JOINTS IN FILTER FABRIC SHALL BE SPLICED AT POSTS. USE STAPLES, WIRE RINGS, OR EQUIVALENT TO ATTACH FABRIC TO POSTS. 2"x2" BY 14 GA, WIRE OR EQUIVALENT, IF STANDARD STRENGTH FABRIC USED FILTER FABRIC I f �BMAX I �MINIMUM4"x4"TRENCHJJ/ U BACKFILL TRENCH WITH J POST SPACING MAY BE J NATIVE SOIL OR 3/4"-1.5" INCREASED TO 8' IF WIRE WASHED GRAVEL BACKING IS USED 2"x4" WOOD POSTS, STEEL FENCE POSTS, REBAR, OR EQUIVALENT NOTE: FILTER FABRIC FENCES SHALL BE INSTALLED ALONG CONTOUR WHENEVER POSSIBLE SILT FENCE DETAIL ,�, tad" oOp R=25' MIN. INSTALL DRIVEWAY 1 CULVERT IF THERE IS A ROADSIDE DITCH PRESENT, AS PER KING COUNTY ROAD STANDARDS. 4"-8" QUARRY SPALLS GEOTEXTILE 12" MIN- THICKNESS 22' PAVED DRIVEWAY LEFT RIGHT SHOULDER DRIVEWAY SHOULDER CATCH TO EXISTING. � CATCH TO EXISTING. SLOPE VARIES 2' MIN SLOPE VARIES 6" VERTICAL 2 8' SWALE (SEE CG SERIES) (SEE CG SERIES) CURB MEET AND MATCH MEET AND MATCH 1 2' EXIST GRADE, TYP. EXIST GRADE, TYP. 2% S 1 3 3 EXIST GRADE i — 1 ' MIN T (VARIES) EXISTGRADE-/ ;.-N •,• - - - - - I �'�' �I, - _ ARIES (VARIES) V ) r ..:..... .-... ".:-� ,, `{='r -.1: _ �11 -ism vTF-=.;••yl '" E� _ i r — 6 PARK ENTRANCE DRIVEWAY SECTION Ds5o2 (NTS) O 3" HMA CLASS 1/2" PER WSDOT 5-04, 9-02, AND 9-03 O 4" CRUSHED SURFACING BASE COURSE PER WSDOT 9-03.9(3), COMPACTED TO 95% MODIFIED PROCTOR O3 12" MIN. GRAVEL BORROW PER WSDOT 9-03.14(1), COMPACTED TO 95% MODIFIED PROCTOR O SUBGRADE FOR SURFACING PER WSDOT 2-06.3(1) OSTRIP EXISTING TOPSOIL TO DEPTH REQUIRED TO REACH SUITABLE SUBGRADE FOR TRAIL PAVEMENT. DISPOSE OF ALL STRIPPINGS AT AN APPROVED LOCATION. IT IS RECOMMENDED THAT THE ENTRANCE BE CROWNED SO THAT 2 RUNOFF DRAINS OFF THE PAD. 100' MIN. 3 7 DRIVEWAY AND PARKING LOT PAVEMENT SECTION cs5ox (NTS) DRIVEWAY AND PARKING LOT LEGEND +� 3" HOT MIX ASPHALT, WSDOT 5-04 15' MI 4" CRUSHED SURFACING TOP COURSE, WSDOT 9-03.9(3) PROVIDE FULL WIDTH OF INGRESS/EGRESS AREA SUBGRADE (OR SELECT BORROW, WSDOT 9-03.14(2)) COMPACTED TO 95% OF THE MAXIMUM DRY DENSITY, AS DETERMINED BY THE ASTM D1557, THE MODIFIED PROCTOR TEST STABILIZED CONSTRUCTION ENTRANCE DETAIL 85% SUBMITTAL DESIGNED MF DRAWN OB CHECKED GS REVISION PANTHER LAKE PARK 200 SW CAMPUS DR FEDERAL WAY, WA 98023 NOTE: ALL DEPTHS PROVIDED ARE COMPACTED DEPTHS. CITY :F IA SOFederal Way ....`Y:AY.MU.03 HUrff ZOLLAJRS 616 Stewart Street, Suite 1120 Seattle, Washington, 98101 Phone (206) 324-5500 Fax (206) 326-1e60 CITY OF FEDERAL WAY SEED MIX TABLE SEED TYPE % BY WEIGHT MIN % PURITY MIN % GERMINATION PERENNIAL RYE 60 98 90 CHEWINGS FESCUE 25 98 l 90 CREEPING RED FESCUE 15 98 90 SEED SHALL BE APPLIED AT A RATE OF 100 POUNDS PER ACRE g CEMENT CONCRETE SIDEWALK SECTION cs502 (NTS) CEMENT CONCRETE SIDEWALK LEGEND 0 4" CEMENT CONCRETE SIDEWALK, WSDOT 9-01 4" CRUSHED SURFACING TOP COURSE, WSDOT 9-03.9(3) SUBGRADE (OR SELECT BORROW, WSDOT 9-03.14(2)) COMPACTED TO 95% OF THE MAXIMUM DRY DENSITY, AS DETERMINED BY THE ASTM D1557, THE MODIFIED PROCTOR TEST NOTE: A, CONSTRUCTION OF CEMENT CONCRETE SIDEWALKS SHALL BE PER WSDOT 8-14. B. CEMENT CONCRETE SHALL BE 4000 PSI MIX. C. SEE FEDERAL WAY STANDARD DETAIL 3-3 FOR JOINT PLACEMENT AND MATERIAL AND SIDEWALK FINISH DATE APPROVED BY: 0/1 GI2O1 3 (CITY ENGINEER) (GATE) SCALE (DEVEI OPMENT ENGINEER) (DATE) I NONE PANTHER LAKE OPEN SPACE EROSION CONTROL & GRADING DETAILS MAX % WEED SEED 05 05 0.5 A.1RON •AB�J OD N of am s��QNlss. ��a DRAWING NO- CG502 SHEET 20 OF 38 z w> LLN NE 1/4 SEC. 19, T 21N, R 4E, W.M. r i�j 4 ` ,° ...' `ems' ^ �. •p f f r'• . 5 f . r + I MEET AND MATCH EXISTING SIDEWALK 6 �� Y r i r� �. �! r a r .- sr� ` A _ 1 4Er , ■ r { r ^ Y ,� f, ^ xr t � - ! r 1 tir .•A .. � •��: L r L .r ^ s � f � � f L r I ■ ] � ■ `+' 1 r• Lr Lt 'r- BOLLARD •r y fs�! `. '�rrl:' c `�1r r �• 7r}�I �~f'3� ��r�� 1 i� k~tom \ ■x ti fr-i tiYrL - I rf- �L. _^c�.•,� �r^4� 1'^7y L'Y� [ �� ti ,.� �••� / - .,. �. c r ,ti .ry..s•• � ,l r�l � L + - . ^ • 7= 'r- , fi r 'J _^ � J^�• -� s=rt"�,r�,'•..t t ti ._�� r"o nor t -r ..-, l ,`yt �1�/'i` Lbw q • .. 49 \ n rL �}\ MEET AND MATCH \� \ EXISTING SIDEWALK 4 rrr V - L G50 \� r 4 - MEET AND MATCH EXISTING SIDEWALK 1 q �S. C v SEE DWGa NO. CP401 FOR a� B PARKING LOT PLAN r r L r r� 4� w y s + { of TRAIL ALIGNMENT TABLE NUMBER LENGTH RADIUS BEARING L1 19.18 N21' 09' 35"E C1 8,20 15,00 L2 62.71 N52'29'11"E C2 28.37 35.00 L3 48,04 S81 ° 04' 32"E C3 22.57 35.00 L4 91.05 N61' 58' 38"E C4 22.22 35.00 L5 28.73 S81' 39' 11 "E C5 99.28 1 105.00 iw r¢ 85% SUBMITTAL sm DESIGNED MF 'z DRAWN GW 3� CHECKED GS SYM I RI PANTHER LAKE PARK ATE , l l ffT—M 1C1 S APPROVED BY: CITY OF FEDERAL WAY D10/1612013 200 SW CAMPUS DR CITY OF 818 Stewart Street, Suite 1120 (CITY ENGINEER) (DATE) SCALE FEDERAL WAY, WA 98023 Federal Way 3ra.mA,,H �2z,, 6)324-5500 Washington, (206 1" _ 20' FUEnAL v:nr wA w.003 phone (206) 3245500 Fax (206) 328-1880 ro�wrnl€Nr�mvNEEw {OA7EI r` l•, 1� rf - PANTl El LAKE _ TRQppS:-: TRAIL KEYMAP .,wr,�,rpuSO —� NTS LEGEND (PROPOSED — — PAVED ASPHALT TRAIL GRAVELSHOULDER -Yr— 4-FT CHAIN LINK FENCE \� PAVING POINT SEE DETAIL, SHEET CP402 F SIGN AND POST SEE DETAIL, SHEET CP503 NOTES 1. SEE OTHER SHEETS FOR MORE INFORMATION ASSOCIATED WITH TRAIL IMPROVEMENT PLANS AS FOLLOWS: • SHEETS G1002 & G1003 FOR FEDERAL WAY GENERAL NOTES AND ADDITIONAL CONSTRUCTION NOTES SPECIFIC TO THIS PROJECT. • SHEETS CG101 THROUGH CG109 FOR TRAIL GRADING PLAN AND PROFILE. • SHEETS CG301 AND CG501 FOR TRAIL CROSS-SECTION DETAILS. • SHEET CP501 FOR TRAIL DETAILS. BENCHMARKS/DATUM: HORIZONTAL: KING COUNTY SURVEY CONTROL, WASHINGTON STATE PLANE, NORTH ZONE, NAD 83/91. VERTICAL: NAVD 88. CONTRACTOR'S NOTES: 1. CONTRACTOR SHALL RECORD ANY FIELD DEVIATION FROM ENGINEERING PLAN, THESE RECORDS SHALL BE KEPT ON CONSTRUCTION DRAWINGS AND TURNED OVER TO ENGINEER UPON COMPLETION OF PROJECT. THE CONTRACTOR SHALL BE FULLY RESPONSIBLE FOR THE LOCATION AND PROTECTION OF ALL EXISTING UTILITIES AND SHALL VERIFY ALL r�hn� 09 •Asryr UTILITY LOCATIONS PRIOR TO y CONSTRUCTION BY CALLING THE: UNDERGROUND LOCATE LINE: 1-800-424-5555 ''!fi9 sep+lm�a��a Gn=m w. SGALE(IN FEET)A MINIMUM OF 48 HOURS PRIOR s�oNel s�` TO ANY EXCAVATION PANTHER LAKE OPEN SPACE DRAWING NO, CP101 TRAIL PLAN Ace NO- 151coo1 _ SHEET 21 OF 38 ` _- ••. ri J • `'f{ _ ` tit{ y + r ; � , L tf -• `'yr' . -'z 1' � ' - ` -" s _ �r�=;/-.. � •1 ca �;�• l f tip_ { `•�'l / gip• / /. '� - `' �t r f � ! l 4 ,'n w a _ � 4 3 �. = G50 w w u) LU O . �. mm w w m \ Z h w cl 13 < UI Z � to \ w w Y 5 w z a w� ❑ a= fi � Z 85% SUBMITTAL DESIGNED MF . QF DRAWN GW LL w Ja CHECKED GS &vM REVIsraN I / Lie 5•i PANTHER LAKE PARK 200 SW CAMPUS DR FEDERAL WAY. WA 98023 *r� NE 1/4 SEC. 19, T 21 N, R 4E, W.M. Cip A TRAIL ALIGNMENT TABLE m NUMBER LENGTH RADIUS BEARING w LU HUff rZOLL Y V CITY OF 818 Stewart Street, Suite 1120 Federal Way —Seattle --AY°°32424- (2 Washington, 01 FEDERAL WAY, WA 9BOD3 phone (206) 5500 Fax 06) 328-1880 �1 U e PANTHER LAKE r PROPCI-) . TRAIL N KEYMAP ssv-C bs' DR -- . _ NTS LEGEND (PROPOSED) e- — PAVED ASPHALT TRAIL GRAVELSHOULDER A 4-FT CHAIN LINK FENCE U PAVING POINT SEE DETAIL, SHEET CP402 SIGN AND POST F SEE DETAIL, SHEET CP503 NOTES 1. SEE OTHER SHEETS FOR MORE INFORMATION ASSOCIATED WITH TRAIL IMPROVEMENT PLANS AS FOLLOWS: • SHEETS G1002 & G1003 FOR FEDERAL WAY GENERAL NOTES AND ADDITIONAL CONSTRUCTION NOTES SPECIFIC TO THIS PROJECT. • SHEETS CG101 THROUGH CG109 FOR TRAIL GRADING PLAN AND PROFILE" • SHEETS GG301 AND CG501 FOR TRAIL CROSS-SECTION DETAILS" • SHEET CP501 FOR TRAIL DETAILS. y BENCHMARKS/DATUM: HORIZONTAL: KING COUNTY SURVEY CONTROL, WASHINGTON STATE PLANE, NORTH ZONE, NAD 83/91 CITY OF FEDERAL WAY APPROVED BY: (CITY ENGINEER) (DEVELOPMENT ENGINEER) DATE 10/16/2013 (DATE) SCALE (DATE) 11I = 20' VERTICAL: NAVD 88, CONTRACTOR'S NOTES: 1, CONTRACTOR SHALL RECORD ANY FIELD DEVIATION FROM ENGINEERING PLAN. THESE RECORDS SHALL BE KEPT ON CONSTRUCTION DRAWINGS AND TURNED OVER TO ENGINEER UPON COMPLETION OF PROJECT. THECONTRACTOR SHALL BE FULLY RESPONSIBLE FOR THE LOCATION ANDR�Y R PROTECTION OF ALL EXISTING UTILITIES AND SHALL VERIFY ALL UTILITY LOCATIONS PRIOR TO g �p�=N CONSTRUCTION BY CALLING THE: 2 UNDERGROUND LOCATE LINE: r w 1-800-424-5555 A SCALE (IN FEET) A MINIMUM OF 48 HOURS PRIOR `hssf�"'�2 (I a to TO ANY EXCAVATION BxtL m as PANTHER LAKE OPEN SPACE DRAWING O CP102 TRAIL PLAN I JOB NO. 151t•>asifl SHEET 22 OF 38 NE 1/4 SEC. 19, T 21 N, R 4E, W.M- SPILLWAY BYPASS, SEE SHEET CG104 FOR DETAILS 7. U— — — - - - O 14 L12 w m U W— - .. ---• - -- - - -- — EXISTING SPILLWAY TO REMAIN TRAII Al IGNMFNT TARI F NUMBER LENGTH RADIUS BEARING L12 775.52 N07' 43' 55"E C11 49.26 75,00 L23 166.95 N45° 21' 49"E C22 31.08 10.00 L24 13294 S47' 17' 34"W C12 41.40 25.00 L9 115.31 N37° 50' 12"W w j p f --- -0 m — - - - LU LU En LEGEND(PROPOSED PAVED ASPHALT TRAIL GRAVEL SHOULDER a N 4-FT CHAIN LINK FENCE ry PAVING POINT SEE DETAIL, SHEET CP402 SEE SHEET CP104 SIGN AND POST r SEE DETAIL, SHEET CP503 r \ r NOTES X 1- SEE OTHER SHEETS FOR MORE INFORMATION i : �i f r ASSOCIATED WITH TRAIL IMPROVEMENT PLANS AS FOLLOWS: r — k � 1 2• • SHEETS GI002 & GI003 FOR FEDERAL WAY GENERAL NOTES AND ADDITIONAL CONSTRUCTION NOTES SPECIFIC TO THIS PROJECT. ALTERNATE DIRECT APPROACH `' xr G50 TO EX WOOD BRIDGE, , _ .� ± ± \ • SHEETS CG101 THROUGH CG109 FOR TRAIL 5 % SLOPE AT150 LF r , GRADING PLAN AND PROFILE ) ; SHEETS CG301 AND CG501 FOR TRAIL !^ \ r'\I�• CROSS-SECTION DETAILS, rr° Y' • SHEET CP501 FOR TRAIL DETAILS. X\ SHEET NOTES: EXISTING WOOD FOOT N v BRIDGE TO REMAIN, 1. EXISTING WOOD BRIDGE AREA NOTES - C/ r SEE SHEET NOTE 1. 1� M1 i • r A. ALL HEAVY EQUIPMENT TO REMAIN 10' CLEAR OF EXISTING WOOD BRIDGE STRUCTURE B- TAPER TRAIL SURFACING IMPROVEMENTS TO rl \ �'. , i MATCH EXISTING WOOD BRIDGE CROSSING WIDTH, G50 va ±6' WIDE. Q C. WITHIN 19 OF THE EXISTING WOOD BRIDGE, 1 COMPACTION ACTIVITIES SHALL BE PERFORMED --- _ _ WITH SMALL, HAND OPERATED EQUIPMENT. BENCHMARKS/DATUM: � HORIZONTAL: KING COUNTY SURVEY CONTROL, WASHINGTON STATE PLANE, NORTH ZONE, NAD 83/91. i -- VERTICAL: NAVD 88. CONTRACTOR'S NOTES: 1. CONTRACTOR SHALL RECORD ANY FIELD DEVIATION `v FROM ENGINEERING PLAN. THESE RECORDS SHALL U a BE KEPT ON CONSTRUCTION DRAWINGS AND TURNED OVER TO ENGINEER UPON COMPLETION + OF PROJECT. \ THE CONTRACTOR SHALL BE FULLY _ RESPONSIBLE FOR THE LOCATION AND PROTECTION OF ALL EXISTING UTILITIES AND SHALL VERIFY ALL UTILITY LOCATIONS PRIOR TO e y CONSTRUCTION BY CALLING THE: UNDERGROUND LOCATE LINE: x a Q 1-UM O 4 8 HOURS SS 2 U5% SUBMITTAL SCALE (IN FEE A MINIMUM OF 48 HOURS PRIOR m _u ao TO ANY EXCAVATION t4NAL F 6 DATE DRAWING NO. -v. CITY OF FEDERAL WAY DESIGNED MF PANTHER LAKE PARK HU ff-MLIARS 10/16/2013 PANTHER LAKE OPEN SPACE CP103 <w APPROVED BY: SCALE TRAIL PLAN -z 200 SW CAMPUS DR 818 Stewart Street, Suite 1120 (CITY ENGINEER) (GATE) -¢d DRAWN GW CITY OF JOB Na 1Si0A6p1 -� FEDERAL WAY, WA98023 Federal Way FEON«14- W�Y.So T.o3 Seattle, Washington,98101 1rr -'ZO' SHEET 23 of 38 5 w CHECKED GS ur YYM REVISION DATE BY APP'ti Phone (206) 3245500 Fax (206) 328-1880 IOfyELQ✓•MEN7 ENGINEER) IMiE) L�K x r NE 1/4 SEC. 19, T 21N, R 4E, W.M. 0 U) LLI Irk w C4 yam. 17 SEE ABOVE L 85% SUBMITTAL 4 'yam„j DESIGNED MF DRAWN GW ua CHECKED GS i SYM Po G50 PANTHER LAKE PARK 200 SW CAMPUS DR FEDERAL WAY, WA 98023 TRAII Al IGNMENT TABLE NUMBER LENGTH RADIUS BEARING C13 10885 200.00 L17 79-98 N69' 01' 12'W C18 62.99 500.00 L18 107.45 N76' 14' 19"W C24 16Z46 200.00 L26 49,35 S57" 13' 11"W C25 120.91 200.00 L25 193.20 S22" 34' 57"W V7 0 a U W w w w rn Hj�MU� CITY OF FEDERAL WAY DATA 1 1 u 10/16/2013 _ ewAPPROVED BY: Cl ' 018 Start Street, Suite 1120 (CITY ENGINEER) art I SCALE Federal Way FIAEAI� ARC mM401 Phone 206) 3245 00 Washington.Fax (206) 328-1880 113 ^ 20' ( (PEYELOPMENT F,f1aINE6F1 [1NITE} LEGEND(PROPOSED — - PAVED ASPHALT TRAIL GRAVELSHOULDER iE 4-FT CHAIN LINK FENCE n PAVING POINT U SEE DETAIL, SHEET CP402 SIGN AND POST F SEE DETAIL, SHEET CP503 NOTES 1. SEE OTHER SHEETS FOR MORE INFORMATION ASSOCIATED WITH TRAIL IMPROVEMENT PLANS AS FOLLOWS: • SHEETS G1002 & G1003 FOR FEDERAL WAY GENERAL NOTES AND ADDITIONAL CONSTRUCTION NOTES SPECIFIC TO THIS PROJECT. • SHEETS CG101 THROUGH CG109 FOR TRAIL GRADING PLAN AND PROFILE • SHEETS CG301 AND CG501 FOR TRAIL CROSS-SECTION DETAILS. • SHEET CP501 FOR TRAIL DETAILS. BENCHMARKS/DATUM: HORIZONTAL: KING COUNTY SURVEY CONTROL, WASHINGTON STATE PLANE, NORTH ZONE, NAD 83/91. VERTICAL: NAVD 88. CONTRACTOR'S NOTES: 1. CONTRACTOR SHALL RECORD ANY FIELD DEVIATION FROM ENGINEERING PLAN. THESE RECORDS SHALL BE KEPT ON CONSTRUCTION DRAWINGS AND TURNED OVER TO ENGINEER UPON COMPLETION OF PROJECT. THE CONTRACTOR SHALL SE rMV RESPONSIBLE FOR THE LOCATION AND AARD/y PROTECTION OF ALL EXISTING UTILITIES AND SHALL VERIFY ALLa UTILITY LOCATIONS PRIOR TO q e CONSTRUCTION BY CALLING THE: UNDERGROUND LOCATE LINE: b 1-800-424-5555 1 Q_ SCALE (IN FEET) AMINIMUM OF 48 HOURS PRIOR s`pf9HAL a m TO ANY EXCAVATION PANTHER LAKE OPEN SPACE DRAWING NO CP104 TRAIL PLAN I JOB NO- 15104801 SHEET 24 OF 38 NE 1/4 SEC. 19, T 21 N, R 4E, W.M- --7771 _ 20 O UJI UJI w UJ O _ p C71 — — TRAIL ALIGNMENT TABLE NUMBER LENGTH RADIUS BEARING C23 38.21 200.00 L22 72,64 S11' 38' 14"W C20 91.49 200,00 L20 165.39 S37' 50' 48"W C21 72.88 200,00 L21 157.83 S16" 58' 09"W C19 48.17 50-00 L19 1 10.43 S72` 09' 48"W f I LU w III 4L� LEGEND PROPOSED -- - PAVED ASPHALT TRAIL GRAVELSHOULDER 4-FT CHAIN LINK FENCE V PAVING POINT SEE DETAIL, SHEET CP402 SIGN AND POST F SEE DETAIL, SHEET CP503 NOTES 1, SEE OTHER SHEETS FOR MORE INFORMATION ASSOCIATED WITH TRAIL IMPROVEMENT PLANS AS FOLLOWS: SHEETS G1002 & G1003 FOR FEDERAL WAY GENERAL NOTES AND ADDITIONAL CONSTRUCTION NOTES SPECIFIC TO THIS PROJECT. • SHEETS CG101 THROUGH CG109 FOR TRAIL GRADING PLAN AND PROFILE. • SHEETS CG301 AND CG501 FOR TRAIL CROSS-SECTION DETAILS. • SHEET CP501 FOR TRAIL DETAILS. U) \ \\ BENCHMARKS/DATUM: HORIZONTAL: KING COUNTY SURVEY CONTROL, _ WASHINGTON STATE PLANE, NORTH ZONE, NAD 83/91. L2i VERTICAL: NAVD 88. — - � CO TRACTOR'S NOTES S N _ _- 1. CONTRACTOR SHALL RECORD ANY FIELD DEVIATION 1 130 �� 18"x18" STOP l _ r ' FROM ENGINEERING PLAN. THESE RECORDS SHALL BE KEPT ON CONSTRUCTION DRAWINGS AND G30 J r� yl' �� TURNED OVER TO ENGINEER UPON COMPLETION OF PROJECT. SAW CUT AND REMOVE EX �_ �f THECONTRAL;1O SHALLBEFULLY r ASPHALT PAVEMENT TO � RESPONSIBLE FOR THE LOCATION AND X,TR(7p� PROTECTION OF ALL EXISTING �,Vt r ,o UTILITIES AND SHALL VERIFY ALL ��S 44 y� PROVIDE STRAIGHT EDGE WITH � � t`' yr "�� SEAL JOINT FOR PAVING UTILITY LOCATIONS PRIOR TO CONSTRUCTION BY CALLING THE: UNDERGROUND LOCATE LINE: a L Q �2 1-800-424-5555 ,s, z $5% SUBMITTAL ► o oSCALEZO FEET) A MINTO AMNOF48 HOURS Y EXCAVATIONRIOR s$�fllrxt 40 i i��c CITY OF FEDERAL WAY DATE [DRAWING NO - DESIGNED MF PNTHLAKE PARK , HU�A)UARS 10/16/2013 PANTHER LAKE OPEN SPACE CP105 DRAWN GW 200 SW CAMPUS DR clnOF 4 � BY' 618 Stewart Street, Suite 1120 (CITY ENGINEER) •(DATE) TRAIL PLAN NO. 15104801 FEDERAL WAY, WA 98023 3 5-H AVE, SOUTH Seattle,Washington, 98101 1t�� CHECKED GS Federal Way '�,».IN,.,r. N1M900m phone 206)3246500 Fax (206)328-1880 1 = 20 ET 25 OF 38 ] SYM REVISION DATE BY APP4 ( (DEVELOPMENT ENGINEER) (GATE) w 0 w <Y J w x z a a � N � = O � arr w>O r�wo. NE 1/4 SEC. 19, T 21 N, R 4E, W.M. ti.4 SEE SHEET CP101 FOR r _ — r5' %27 r t II . / IC TRAIL• r ` : r I Yt TRAIL PLAN _...\. ^— R r� �-.� rr ��'f"L `rfr lS , ¢�.15 �•- - - �. ti i'1`�..r�. �./� 7„� rI, I j. � 1 30 F 7 4; ` r `�I I • may. �.� � ` �` A �_ 7' � If r n rrt �r' ; 'r �` •^S' a'el.. '( / �� f �� 1 4 1 ti �ti • r�r�_) `� ^ r � � � � r t y „ I" r A3i , , t r ` y l � ' 1 ' f 1 ! 1 `.1'"1 r r� N r . � 1 /// � r , `'.- ' C. � ` / 'I•_ I "�+ f' 4 \ R11-1 _ ^ R=5 BOLLARD 4 — v / 9 it r J ` I I j SOP ! - I i 7.93 A —. r ` L X f1 14+00 �� rr • �S .I 3�? WHEELSTOP 41 STALL P_w' TYP ALL STALLS PARKING LOT 26' ---1 - --I- — 13+00 gZ s1, �rY� ` `` I � PC = 6+80,70 \ J 117 l f` ► 1 ` ] nr92 12+00 11 F-Sr 4' WHIT SOLID END DOUBLE YELLOW LANE STRIPE PAVEM+ SEE DETAIL, SHEET CP-502 MARKING LINE _ _-� MEET AND MATCH EXISTING SIDEWALK — - DRIVEWAY & PARKING ALIGNMENT TABLE NUMBER LENGTH RADIUS BEARING L27 10.67 N70° 04' 48"W C26 6726 39.00 L29 12.76 S11 ° 06' 01"W C27 59.78 39.00 L28 259.52 N81 ° 04' 32"W L 85% SUBMITTAL DESIGNED MF DRAWN GW CHECKED GS ' NEIV PARK - - ENTFONCE SIGN R1-1 ' 36"36" - - —gam- -- - -3TOP..e _ MEET AND MATCH = _ -ra ` EXISTING SIDEWALK EXISTING CONCRETE SIDEWALK INSTALL CITY PROVIDED VEHICLE SWING GATE 9ig0 BEGIN DOUBLE YELLOW LANE STRIPE ';PAN LAKE '� PRDPOSEO y� TRAIL N KEYMAP NTS LEGEND (PROPOSED) HMA ASPHALT PAVEMENT SEE DETAIL, SHEET CG502 f r r CEMENT CONCRETE SIDEWALK SEE DETAIL, SHEET CG502 RAISED CROSSWALK SEE DETAIL, SHEET CG502 I• SIGN AND POST SEE DETAIL, SHEET CP540 EXISTING CONCRETE DRIVEWAY RAMP PANTHER LAKE PARK l ll_1U!_�_ HAPS CITY OF FEDERAL WAY DATE 10/16/2013 200 SW CAMPUS DR CITY OF APPROVED BY: 818 Stewart Street, Suite 1120 (CITY ENGINEER) (GATE) SCALE FEDERAL WAY, WA98023 Federal WayLN[HAVE.00YfM Seattle, Washington, 98101 1rr _ 20r E023rAL s'a•Y, wA yecc7 phone(206) 324-5500 Fax(206)303-1880 IpEyE�pp,�ry ENaNEErp WATS1 NOTES 1. SEE OTHER SHEETS FOR MORE INFORMATION ASSOCIATED WITH TRAIL IMPROVEMENT PLANS AS FOLLOWS: ■ SHEETS G1002 & G1003 FOR FEDERAL WAY GENERAL NOTES AND ADDITIONAL CONSTRUCTION NOTES SPECIFIC TO THIS PROJECT. • SHEETS CG101 THROUGH CG109 FOR TRAIL GRADING PLAN AND PROFILE. • SHEETS CG301 AND CG501 FOR TRAIL CROSS-SECTION DETAILS. • SHEET CP501 FOR TRAIL DETAILS. BENCHMARKS/DATUM: HORIZONTAL: KING COUNTY SURVEY CONTROL, WASHINGTON STATE PLANE, NORTH ZONE, NAD 83/91. VERTICAL: NAVD 88, CONTRACTOR'S NOTES: 1. CONTRACTOR SHALL RECORD ANY FIELD DEVIATION FROM ENGINEERING PLAN. THESE RECORDS SHALL BE KEPT ON CONSTRUCTION DRAWINGS AND TURNED OVER TO ENGINEER UPON COMPLETION OF PROJECT. THE CONTRACTOR SHALL BE FULLY RESPONSIBLE FOR THE LOCATION AND %ARON PROTECTION OF ALL EXISTING UTILITIES AND SHALL VERIFY ALL UTILITY LOCATIONS PRIOR TO ur N CONSTRUCTION BY CALLING THE: UNDERGROUND LOCATE LINE: x 1-800-424-5555 SCALE u,. RETI A MINIMUM OF 48 HOURS PRIOR srflx�w 10 w TO -ANY EXCAVATION O. PANTHER LAKE OPEN SPACE DRAWINCP401 PARKING AREA PLAN JOB NO, 1514AE0, SHEET 26 OF 38 NOTES: 1. AN EXPANSION JOINT CONSISTING OF 3/8- PRE -MOLDED JOINT _ .%PLANING STRIP.%%'.'. MATERUL SHALL BE PLACED FULL DEPTH MOUND HYDRANTS, POLES. - •- _ POSTS, AND UTUrrY CASTINGS, SEE DETAIL AT RIGHT. I - , 2. AN EXPANSION JOINT CONSISONG OF 3/8' PRE -MOLDED JOINT MATERIAL SHALL BE PLACED IN THE UPPER 2 INCHES OF CUflBS AND SIDEWALKS AT 10 FOOT INTERVALS AND AT SIDES OF DRAINAGE INLETS. (JOINT MATERIAL OF 2J'y- DEPTH MAT BE USED IN LOU OF 2- DEPTH) . 3, EXPANSION JOINTS IN SIDEWALK SHALL BE LOCATED SO AS TO ----- EXPANSION JOINT MATCH THE JOINTS IN THE CURB AND GUTTER, WHETHER THE SEE NOTES AT LEFT SIDEWALK IS ADJACENT TO THE CURB OR SEPARATED BY A PLANTER STRIP. 1/a' LI(PTH V GROOVE O ]JAI 5' C-C 4. TOOL MWIsIM 03111 NJ19NG W I-V10N Y-GRQNM SHALL 9E MAK IN TK BCEMLK AT 5 FOOT INTERVALS. INTERMEDIATE TO THE } ls7NT31DN JDRRS -� j1_ i JOCR fWOT' N a AN EXPANSION JOINT CONSISTING OF 3/8- PRE -MOLDED JOINT r AROU{A VA "M MATERIAL SHALL BE PLACED FULL -DEPTH BETWEEN THE CURB AND ;,-y-_i�i_ WfeumA POILM ETC. ADJACENT SIDEWALK. G EXPANSION JOINT MATERIAL SHALL CONFORM TO THE REQUIREMENTS crc y�1 OF AST. D994 (AASHTO M33) ouwcuoN "a 7. MONOLITHIC POURS OF CURB AND SIDEWALK ARE NM ALLOWED. �' A r ar: sECTON a -a GROOMED FINISH (IYP.) GROOMED pFINISH (IYP.) TR.O/i¢f-D P�aOYLNiF (lYP) � 3TROSLiW PERnNFI call�Ee CEMENT CONCRETE -� I%TA0. IN 1/4' Y ., ,11 CURB AND CUTER �1 V-GROOVE SIDEVY JOINT L BOTH CURB AND JOINT L BOTH TO CUB SIOEWPIX CURB AND SIDEWALK TO CURB 3 SEE NOTE 3. (T)'P) LN IAJ Im !� Nx WD 9ttl f WA�STRIP &'W PUBLIC SIDEWALK AND CURB JOINTS DWG. NO. ftWWWHOBS AND SIDEWALK FINISH 3-3 SKIP CENTER LINE (SCL) � / 0 TYPE 2YY RPiLt-� -4" YELLOW LINE (TYP) SEE NOTE 6 DOUBLE YELLOW CENTER LINE (DYCL) �4----------- 4" YELLOW LINE SEE NOTE 6 TYPE 2YY RPM (TYP}-� WHITE EDGE LINE (WEL) WHITE LINE YELLOW EDGE LINE (YEL) r— 10__-4" YELLOW LINE SEE N6Tf 6 `TYPE 2Y RPM (TYP) SEE NOTE 7 DIRECTION OF TRAFFIC DOTTED EXTENSION LINE (WDEL, YDEL) J 2 t_ L'--G� \_4" LINE, YELLOW OR WHITE PER PLANS. SEE NOTE 6 GENERAL NOTES: 1. STRIPING ON ARTERIALS SHALL BE PLASTIC TYPE D METHYLMETHACRYLATE (MMA). ALL OTHER STRIPING SHALL BE PAINT. 2. ALL STRIPING WITHIN INTERSECTIONS SHALL BE PLASTIC OR MMA. 3. ALL RPM'S SHALL BE LOCATED TO PROVIDE 4 INCHES BETWEEN STRIPING AND RPM'S. 4. TYPE 2 RPM'S SHALL BE USED ON ALL ARTERIALS AND COLLECTORS, IF STRIPED 5. WHERE TYPE C CURB IS USED IN PLACE OF STRIPING, USE RPM PATTERN APPLICABLE TO THE STRIPING BEING REPLACED. SPECIFIC NOTES: 6, IF MMA 15 USED, MMA SHALL BE PROFILED. 7. WHERE RAISED MEDIAN OR TYPE C CURBING 15 USED, USE TYPE 2YR RPM'S, WITH RED FACING OPPOSITE THE DIRECTION OF TRAFFIC. S. WHERE RAISED MEDIAN OR TYPE C CURBING IS USED, USE TYPE 2WR RPM'S, WITH RED FACING OPPOSITE THE DIRECTION OF TRAFFIC. 9. PLACE RPM'S ON SIDE OF STRIPE THAT IS IN TURN LANE. PLACE RPM'S ON BOTH SIDES OF STRIPE IF BOTH SIDES OF STRIPE ARE THRU LAN ES. LEGEND: 431 MONO -DIRECTIONAL RPM TYPE 2 81-DIRECTIONAL RPM TYPE 2 J �� DWG. NO. ffs�i0 WORKS RAISED PAVEMENT MARKERS I- 3-17 W aY J W 2 F Z Qa. wa O t;jd= wo�Q 85% SUBMITTAL N � � ' r � ¢FF Ea. w j pi li¢t - M... RI BX1 we"I 16?GGN LTEynnoN wuEmlc In' Nnc�rN�Ru m L1 amC CFLIENT CONCRr1E ruRB3 pPANSIOH JOwI rt�f. yI Gm s7. i H vwr rnNCAErE lxwAlx • I mr m�"ulsE c�i we ' NOTE TOP OF LP AT DR - NEW GEMENR CONrmTN° rceRB_&SLLrTT'B t . Ur 1. to o-n. sa rnL aoAR TrasLLn1s HvTmrr . 2 Ntlu DNA >0 tuTDI NbxnC SI010.TttTAt I - a n ! Alm tw AN +nPNAID n e[ +NlL Intl apT. laf al LTIIU AI MH4TpN II '' ``''`` II CEAIFNT CakaRETE HiARRIEi CLIRA N1t"pe rig �� WORKS CURB DETAILS D 3-4D REV. MAR 2011 Cent Cm. GnleMn Roadway ll II --II 1'T CROSSWALK STRIPE DETAIL `C-1 --"-- HANDICAPPED PARKING STALL SYMBOL _ MARKING AREA B.D2 SO.FT. GRID IS I'SQUARE BIKE LANE SYMBOL LANE I _ I I I I I I I PREFERENTIAL LANE SYMBOL DWG. NO. uBRas MISCELLANEOUS PAVEMENT MARKINGS 3-20 IrrR-1 NY0 NS' 3'Shiner ITyP5 l.Pern Groove' (TVP) cITYP.)t'Mch Line' 12:1 `v 12:1 TVP•) Sidewalk fepxiggppQ�4re 2 ISidewalk O (,yyo) —Prp Gib 3i 3BB 3 88i 4P „� Dummy Joint Distance will vary Center of � Dummy Joint (Ty") Wheel Chair Ramp DETECTABLE WARNING a3 Marked In Field. PATTERN (SEE DETAIL) Restore Asphafl pathway to original location level with back of concrete ramp (Max 8% slope)) _ DETECTABLE WARNING y - - PATTERN (SEE DETAIL) ' CEECT•H1LC a,ARNwc a PaTTEiK LPiJ. MW.L Si 'TL l ==C •JI- jrrH r. 3.1 A;iCI' STO SPEC. 9.L3[1;— Ja 2 PLAT *r eEiAno DETECTABLE SYAA.'dtNG PATTERN DETAIL REV. MAR 2011 PUBTJC CURB RAMP WITH SIDEWALK I DWG.NO. Woms I (NO PLANTER STRIP) 3-813 THE CONTRACTOR SHALL BE FULLY RESPONSIBLE FOR THE LOCATION AND PROTECTION OF ALL EXISTING p UTILITIES AND SHALL VERIFY ALL UTILITY LOCATIONS PRIOR TO �w N CONSTRUCTION BY CALLING THE UNDERGROUND LOCATE LINE: Q s 1-800-424-5555 A MINIMUM OF 48 HOURS PRIOR �s7DNA1 TO ANY EXCAVATION H rFff—Z0� CITY OF FEDERAL WAY DATE DRAWING NO. PANTHER LAKE PARK 1 1Ul 1 1 10/16/2013 PANTHER LAKE OPEN SPACE DRAWING 200 SW CAMPUS DR CITY OF APPROVED BY: FEDERAL WAY STANDARD DETAILS JOB No. 15104801 FEDERAL WAY WA98023 61eatle,Wasingtsuite11z0 CITY ENGINEER) (DATE) s�(� Federal Way.. 3 WAYI sourH Seattle, Washington, 98101 20T FEDERAL NTRAY. WA 90G03 Phone (206) 324-5500 Fax (206) 328-1880 SHEET 29 OF 38 1DEVELOPMENr ENGINEER) IRATE) 'wa > 3 ce�w ❑ a= 34�k wop¢ GO Zs N S =oow I To z FOOT ASP141T GPIND {{tr AOIE I) Zk wHRE Puma ate' i = NARNNGS (IYP), ' ��LL q RPM TPE II-YE110WMARKING DETAIL — SCALE 2:1 -� (1YP. AT LFNIFALINE) I � 6rY THE r (wMrii � � :w, 06OcnAN sun Wlh-2 hwL rILWIC w . so' sr. so' ii Ir. He o-n M6Io. ooNeh 2r . Ir Norio: 1) INHEN E SICNS E S ONLY FOR GE IN IN SERIFS 2) WHEN ] OR MORE BUMPS, RE4CE INS-lA WITH WB-IA(5) (BUMPS AHEAD) 0) USE RFIII SIGNS SI-1 111 ♦) USE SI-1 INSIEM Of W11-2 FOR SCHOOL CROSSINGS SECTION A —A — PARABOLIC CROWN 'i TO 2 PON WIDE X- — GRIND (SEE NOIE glk'24o C D OR ` 2 ! Y � j'-GABS C rx IS}r•J i-I'- sLVbll{—yyQr I a 6. W'L }l is CURB FACE G'PIP `TALK COAT (1YP) 5X°''`'°M SECTION B-B (CURB MD CUTTER) t[CoON N tRG1AQM 14 1.) PRIOR TO SPED HUMP CON51RUC110N, THE ENGINEER MAY REQUIRE ASPIVET GRINDING IN ORDER To PRONGE A SMOOTH rRMISRION. w 'daKS RAISED D CROSSWALK p 3.27 �� nN'�/ 85% SUBMITTAL c Y vwrol . >m -� NE c weer v 91 R., ArY I�l ` REMD_yABLE_BQLLA_RD REUOMaREE BUI_I.AkD FIXED BOLLARD sEcnoH .- ELM NIl 1 RELYLLEO PLSMC BOLLARD SHAH BE LIE mMBER SHALE BE >AW6uTK 11.I.e1LD YNr� TWL iK'A. KA. trl lCCB�MCL MIX 1}e A[OUOI�AS Or SEL. 0-00.] Sal S wSBE InE =t. HIE. G 7PCGrIC.00•t: 1V !' f:F mMBER SWUE BE PMNIED WXIIE ]. 'Tm fUs SWIL C(kABRM m AYNI w55 WY A ]. N4m5, ypLly, R 0e EM' 31W,1 CONDIW IY Aim Ioo7. .. ALL S1rul ll spol4 W CA -ro 5 CONCRETE SNAIL BE CLASS 3000. 6 MIN 50' SPACING ON TPAILS LESS TNAN IO' WIDE SO' SPACING ON TRMLS 10' OR WIDER REV. 4/11/00 .r.wa.aa euaa.Nn. arpulam raa aeavuTear ANQ wArwlwG nova v—,.Bs ilONS role-00Will ANDrush— . � � 57QP ' ❑ Major Road 5iOP Se. Nox. same ei*ncrcapp Maeeervae o, T-ineersesuor�s. DWG. NO. DWG. NO. �W1M W 7 WORKS BOLLARDS l 3-35 � ' WORKKS STANDARD LOCATIONS FOR STOP AND YIELD SIGNS 3-53 PANTHER LAKE PARK 200 SW CAMPUS DR FEDERAL WAY, WA 98023 chTv of Federal Way Public Works Department STREET SIGN STANDARD SPECIFICATIONS SIGN FACE MATERIO LS All permanent signs faces shall be constructed from aluminum sign blanks unless otherwise approved by the engineer. Sign blank minimum thicknesses, based on maximum dimensions, are as follows: Maximum Dimension Blank Thickness Less than 30 inches 0.080 inches Greater than 30 inches, less than 48 inches 0.100 inches Goll than 48 lincNA 0.125 inches All D-3 sbeM name signs shall be canstmded with 0.100' thick blanks The contactor shag install permanent signs, which meet or exceed the minimum ne8adivity standards. All sign Face sheeting shall be applied to sign blanks with pressure sensitive adhesives All regulatory (R 3arles), Adral (S Series), and warning (W and X series.) Myns, except (ot paddl reguiaton and parking proht(ton signing, shall be constructed with EncapsulaMd Lens Reflective Sheeting rn a[WRf9rwa with Section 9.28.E of the Standard Spenfkatlons, This sheeting has a mill sellecilcn railing of 250 erdelaolil cant891square foot for wrhlb"IhNer Sheeting with a divergence ai of 0.2E and an incidence angle of -4E- This high Inberi sheeting shall be 3M Series X= or Its equivalent. All street name (D-3) sign sheeting shall meet this specification. All overhead signing shall meet the specnmtors of fMsrrhatk Lens Reflective Sheeting. This stimIng has a minimum retro-reflection ratklg of 800 hxMelas 69 candefsquarefDot for white-sAl sthret ing with a divergence angle of 0.2E and an incidence angle of -4E. This diamond grade sheeting shall be 3M Visual Impact Performance (VIP) Series 3990 or its equivalent. This standard applies to all signs mounted above the roadway, on span wire or signal mast arms. Motorist information and parking signing shall be constructed with Engineer Grade Sheeting, in accordance with Section 9-28.6 of the Standard Specifications. This sheeting has a minimum retro- reflection rating of 70 candelas/foot candle/square, fGot for white -silver sheeting with a divergence angle of 0.2E and an Incidence angk of-4E. This englaeering grade sheeting shall be 3M Seres 32M a RS equivalent. These signs include guide sag" (D Series — except D-3), corporate limit signing (I Sties), and motorist information signing (K Series). The reflectivity standard of supplemental plates shall match that of the primary sign. SIGN rwim ORI' City of Federal Way, (253) 835-2700, shall be contacted within two waling days of completion of the permanent signing installation to inspect, inventory, and log all new and relocated signs. OTHER SIGNS Refer to 2003 MUTCD or equivalent approved source. Includes pavement markings as supplement to signing. THE CONTRACTOR SHALL BE FULLY ABBTTIDNAL OUESriON5y 2r) su 5"aIL BE VIA ECIFDTO: RESPONSIBLE FOR THE LOCATION AND Design —Traffic Engineer (253) 835-2740 PROTECTION OF ALL EXISTING ,�.yt�'c fvARQ1�P +n Installation/Renowil — Public Works Department (253) 835-2700 UTILITIES AND SHALL VERIFY ALL Street Addressing — Building Department (253) 835-2607 UTILITY LOCATIONS PRIOR TO nr y Rtv march zohD CONSTRUCTION BY CALLING THE: 'L N UNDERGROUND LOCATE LINE: r a 1-800-424-5555 °Qg •�"—1`R� Page I of I Standard Detail No 3-54 A MINIMUM OF 48 HOURS PRIOR S►2HtL g� TO ANY EXCAVATION CITY OF FEDERAL WAY APPROVED BY: (CITY ENGINEER) PANTHER LAKE OPEN SPACE DRAWINCP503 FEDERAL WAY STANDARD DETAILS SH13 NO- EET 30OF38 DESIGNED MF DRAWN DB CHECKED GS CITY OF — 818 Stewart Street, Suite 1120 Fe d le ra l W ay rEpeaµ"wAv, wA seooD phone (206) 324 5 Op Washington.Fax (206) 32B 1890 98101 (DEVELOPMENT ENGINEER) 10/16/2013 (oAT� I SCALE 1"=20' (DATE) >a o�a= _�� 185% SUBMITTAL Cox THE CO RESPOW PRO' UTILIT UTIL CONSI UNDEF 1 - A MINIM TC N 5z: x o o R 7 CITY OF FEDERAL WAY D10/16/2013 DESIGNED MF PANTHER LAKE PARK HL.IFMZOLI�RS PANTHER LAKE OPEN 2 APPROVED BY: FEDERAL WAY STAN DARC <P�zLL DRAWN DB 200 SW CAMPUS DR -wx- SCALE 818 Stewart Street, Suite 1120 (CIT' ENGINEER) (OA _ z W -c: FEDERAL WAY, WA 98023 1 25-HAVE soun� Seattle, Washington, 88101 W>OWw CHECKED �s Federal ay FEGERALWAY.WA.. ill = 20 E. <� N¢¢ L REVISION DnTE 8Y :�P P'D Phone (206) 3245600 Fax (206) 328-1680 yGEVEIaPn�rlf EnewEEzrl (oP.�� =oq NE 114 SEC. 19, T 21 N, R 4E, W.M. -.= ��r 'j a •'�1f+ ;�+ f/!r �� ;r{ `f' `till ;r e ` 3` .; , r � i I , + t rr�,Yi � 1, ti> r`i ryN`rytr ` r y1 TO j009,90` a ■ I 'ti _ f r r M �' 1 J I � r � M1�� • f `, t`I.. it ~,t f � � � � �~l �t •� ti` Y ■ : ,� ^ y ■ J ^ f s +' 41 �!. / !1 `r FUTURE RESTROOM {� PROPOSED STORM DRAW'� +1 r! ' ` ^ ■ � . ` ~ t `~: / CATCH BASIN TYPE 2.84" t J r t t r 7 fr t;' I r� v ~ r r f CONNECT TO EXISTING F4.. 18" AND 36" PIPES r ■; I, - +r s- : - ' s I FUTURE ELECTRICAL SERVICE FOR RESTROOMol Z I c % NEW OUTLET F — / _ ■ _ ■ AT EDGE OF2:7 Ir , SLOPE ` ' y ! y ■ �:'.. I , it cnTE -- ■ + ■` �� }■ / �` 4 ` �t TYPE 1 CB TYPE 1 CB ` — 14+00 �. ` + 31 LF 8"0 13+00 1 �0 _ ,2 0 I � 4" SLEEVE FOR " r ' 24 LF 48"0 ' t PVC PIPE - , ' ( FUTURE PRESSURE ► _ _ CORRUGATED t t+ 31 LF 8"0 SANITARY SEWER 143 LF 8"0 r PVC PIPE I E` 2.4- SLEEVE �� ❑ PIPE PVC PIPE _W n j EXISTING 36"0 1 _ CONCRETE PIPE I EXISTING18"0 �M1 � ~ CONCRETE PIPE 5 x z a w� �oo_x wee¢ • _ 85% SUBMITTAL xool�' DESIGNED MF N 2¢2 105 DRAWN DB ' Fr' w < p w a CHECKED GS LL rn a m x Sl'1,7 PANTHER LAKE PARK 200 SW CAMPUS DR FEDERAL WAY, WA 98023 200 LF LINEAR SAND FILTER SEE DETAIL, SHEET UT501 I 1 ' J F I FUTURE RESTROOM P@- _ WATER SERVICE POINT OF CONNECTION � of -'A - x—PA —A- PA I FUTURE ELECTRICAL POINT OF CONNECTION jj jf'T`ZOT � CITY OF FEDERAL WAY C:li'y pF 1 lul 1 1 J� APPROVED BY: 818 Stewart Street, Suite 1120 (CITY ENGINEER) Federal Way ass "'r aV4sW+u Seattle, Washington, 98101 "•�'+�� Phone (206) 324-5500 Fax (206) 328-1880 (DEVELOPMENT ENGINEER) DATE 10/16/2013 (DATE) SCALE (DATE) 1" = 20' r j PANTHER LAKE + PROPOSED TRAIL N KEYMAP NTS PRESSURE SEWER PIPE SHEET NOTE: 1. FUTURE ELECTRICAL, WATER, AND SEWER UTILITY CONDUITS AND PIPES SHOWN ARE FOR REFERENCE ONLY BENCHMARKS/DATUM: HORIZONTAL: KING COUNTY SURVEY CONTROL, WASHINGTON STATE PLANE, NORTH ZONE, NAD 83/91. VERTICAL: NAVD 88. CONTRACTOR'S NOTES: 1. CONTRACTOR SHALL RECORD ANY FIELD DEVIATION FROM ENGINEERING PLAN. THESE RECORDS SHALL BE KEPT ON CONSTRUCTION DRAWINGS AND TURNED OVER TO ENGINEER UPON COMPLETION OF PROJECT. THE CONTRACTOR SHALL-8E FULLY RESPONSIBLE FOR THE LOCATION AND PROTECTION OF ALL EXISTING ELF A R�' UTILITIES AND SHALL VERIFY ALLC`�`, Cf s+ UTILITY LOCATIONS PRIOR TO -Z =z CONSTRUCTION BY CALLING THE: 5•� UNDERGROUND LOCATE LINE: ti x 1-800-424-5555 A MINIMUM OF 48 HOURS PRIOR ss+u>v�t N ,o 20 TO ANY EXCAVATION PANTHER LAKE OPEN SPACE DRAW NG NO. UT101 PARKING AREA UTILITY PLAN JOB NO, 15104801 SHEET 32 OF 38 Y 5 Z z Toe a ¢ 2� oa IT w�a< kVv� UU M¢ooZ =oow iW W2i �22¢ ¢FFZi W Ow -D LL¢ -D f 1 r3 BAR roof a R• R /] ESN NOOP3 T A BITS — LL.3__2 -e rrrrA � tcA¢a�r Ai nE EDP u TINT TAaI WAY NOTES: t. pT}I IlAT+6 K. BE CpAsTRDCRD N AODORPLM'!. 1A1]!A AfAI ura WaNTD M 199 k taro HLEss e111EIBTBELNIsfie Bre Iw6 wr troTEo IN i WmDTyArAss sTANMDMLB Y tttltnS 2. AS AN ACCE ABLE ALTERNATNE TO FEW. NEWED WIRE FABRIC HAVING A MIN. AREA OF 0.12 SOUARE INCHES PER FOOT IAAY BE USED. WELDED WIRE FABRIC SHALL COMPLY TO ABv AWP] M 221) WIRE FABRIC SHALL MDT of Pl,lDm UwOCKOM. S. ALL REINFORCED CAST -IN -PLACE CONCRETE SHALL BE CLASS 40DO. 4. PRECAST BASES SHALL BE FURNISHED WITH CUTOUTS OR KNOCKOUTS. KNOCKOUTS SHALL IIIRTc A WAt4 MICKNESS OF 2' MIN. ALL PIPE SHALL BE PISEALRED h FACTORY —00 KNOCKOUTS. UNUSED KNOCKOUTS NEED NOT BE GROUTED IF WALL IS LEFT INTACT. 5 KNOCKOUT OR CUTOUT HOLE SIZE IS EQUAL TO PIPE OUTER DAM. PLUS CATCH WIN WALL THICKNESS. 6. ROUND KNOCKOUTS MAY BE ON ALL 4 SIDES, WITH MqK. DWA. OF SD'. KNOCKOUTS MAY BE EITHER ROUND OR 'D- SHAPE ]. THE MAC DEPOT FROM THE nNISHED GRADE TO THE PIPE INVERT Is 5'-0•. 8. THE TAPER ON ME SIDES OF THE PRECAST BASE SECTION AND RISER SECTION SHALL NOT ETCEED 1/2-/R. S. CATCH BASIN FiNME AND GRATE SHALL BE IN ACCORGANCE WITH STANDARD SPECInCATONS AND MET THE STRENGTH REQUIREMENTS OF FEDERAL SPECIRCATON W-F-62ID. MATING SURFACES SHALL BE FISHED TO ASSURE NON -ROCKING FT WITH ANY COVER POSITION. 10. FRAME AND GRATE MAY BE INSTALLED WITH FLANGE DOWN OR CAST INTO RISER. 11. EDGE OF RISER OR VWr SHMl NOT BE MORE TWIN 2- FROM VERnCAL EDGE OF OATW BASIN WALL PDBiIC DWG. NO. fM w1)H4s CATCH BASIN TYPE 1 4-1 NOTES: I. PROP —CATCH BASIN HANDHOLDS MD STEPS ARE Pm1 ABe DED TMT THEY CON.. TD SEC. R �M CPROVIDED— . Ai— M-199 AND NEST ALL RsHA REQUIREADNIA 2. vn�u�,�D LyeaTsq XPIor s PMi 9w.,w QN 4 PENETRATION OF o�URER -L BY A LEG IS PRO I RED° 1 J 3. HAN =5 AND STEPS SHALL HAVE `DRDP- RUNGS AS SHOYM ON DETAIL OR PRCUBERANCES TO PREYIIn SIOENAYs SUP- 4, �SIIUA�R1gOPENING MAY BE 2p4,- % 20' OR 2t DWA. AS AN VRRE ppp p 6 $ 16ED, W JOD E LriO4i UAy � MESPLEY TOM M9RIC 1' Iw rCP�Y�� D UTDC OR STEPS SHNL Ex1END TO WITHIN 16- OF ROTOM OF TY ], HINGING LW1at 9HNL BE M4RWNENILY F.i7prllED AT TOP W JET WINGING ON plCl' OR BY BO{DIC OR EMBDL9IG C011DIEiL EACH SW11 BE EMIIFDDED AT BOTTOM IN BASE AGUCONN. SAFTr —RES NAY BE REQUIRED IN VERf DEEP OR UNUSUAL SCIICTURES. �n -�. 9garAWrtSL` I j M T/,' i--di NTAMq g tMia 41 I I�P I L �M. w WORKS MISC. TYPE 2 CATCH BASIN DETAILS D 4 4 D 85% SUBMITTAL DESIGNED MF DRAWN DB CI-LECICED GS PANTHER LAKE PARK 200 SW CAMPUS DR FEDERAL WAY. WA 98023 NOTES: I. I.LTLTA WNH' N OW STWL>'�20 W AC{CReWCE vH wu CAr3 (AA>MD vlrr AAb ASTv LY90 UM16S OMHID1WRd ON PIAHS OR HOIm ME 1f.00T/AYAA irHW1D X[L�'?.-. .. 2. HANDH IDs IN ADIus�MEM SECTION sHALL HAVE 3' UI . olsxwlGe STEPS IN CATCH BASIN SHAU. HAVE 6' MIK CLEARANCE SEE G,i No. 2-006, CATCH BASIN DETAILS. HARCHODS SIN11 BE PLACED IN ALTERWATING GRADE RINGS OR IEVEUNG BRICK COURSE WTIH A MIN. OFONE HWDHOID BETWEIII THE LAST STEP AND TOP OF THE MANHOLE 3 AU- REINFORCED CAST -IN -PULE CONCRETE SHALL BE CLASS W. ALL PRECAST LL CONCRETE SHABE CLASS 4000, 4. PRECAST BASES SWAT BE FURNISHED W CUTOUTS OR KNOCKOUTS, KNOCKOUTS SHAL HAVE WALL THICWEBS OF 2' MIN. UNUSED KNOCKOUTS NEED NOT BE GROUTED IF WALL IS LEFT INrACT. PIPES SHALL BE INSTALLID ONLY IN FACTORY KNOCKOUTS UNLESS I-DAYSE APPROVED BY TIE ENGINEIII. 5. KNOCKOUT OR CUTOUT HOLE SIZE SHALL EQUAL PIPE CUTS, 2uFLUB PL•CN rWM PALL TAIWITSS, lrAEL 1ILXE E a1ML1 BE W TWA w CPD Bow, X rcR . DD, Id• FOR AO• CA. rO' rpR 92' C0. FOR ?r II o CIL BE f FOB N'. 5l'. AIW 60' C8: IX FOR iY AhD W" Ck 6. CATCH BASIN FRANES AND GRATES OR COVERS SHALL BE IN ACCORDANCE WITH SEC. ]05 OF KCAS AND MEET TIE SIRFHGIN REQUIREMENTS OF FEGEPAL SPECIFICATION RR-F-621a MATING SURFACES SHALL BE FISHED TII ASSWE NON -ROCKING FR WTTH ANY COVER POSITION. ]. ALL WE REINFORCING STEEL SHALL HAVE A MIN. TSD STIRWGTH OF BO,ODO PSI AND BE PIAC IN THE UPPER HALF OF TIE WE WITH 1• MIN. CU—ICE B �q 1(iAING VALUE SHALL EQUAL 3,.G POUNDS 1. ft R MR DETALS SHDWING LADDER, STEPS, —DRALS AND TOP SLABS. SEE DWG. NO. !-4. 1o. SEE THE 'NSDOT/APWA STANDARD SPECIRCATONS SEC. 7 -G53 FOR JOINT REQUIREMENTS a fDmaMmMKpMiA `Rww�.�.TyOi�rµi�. •w�+DaApU�a!aUw,.[C91 D1 w FAa INWTcrox ra Ae rv.,. o2A r5 w• ! TVDTw ne UrAu PI72GIC DWG. NO %WK$ CATCH BASIN TYPE 2 (48", 54", 601T,72", 8: 96") 4-3 I M/,• TP.1PA � � 4 TOP NFW :LIT 4-- JL&' SLOT OTAIL 111 1 NOES: I. — rT9pWD AND RECESSED MR 5/e•-11 xc z 2• SOLxEr HEAD IA..... HEM)) G SCREW. 2 SA �J1T11 BE CAST IRON PER ASTN A46 CIAO 3O UNLESS DISrAbB lPECmEG. PUBLLE STANDARD HERRINGBONE GRATE DWG. NO. �0 waaXs (NOT FOR USE IN PUBLIC ROADWAYS) 4s ClT1' OF Tom! Federal Way A�.D..11... WA9B003 6.5.4 LINEAR SAND FILTERS FIGURE6.5.4.A LINEAR SAND FILTER F-►B flow direction removable grated wver' ll I (opfional) (must bear traffic loads 1 if in a road or parking area) InletplpB — — — f16" UrLI outlet pipe �A Serf. pipe, 0. 5 % slope toward Qet (or ship drain) B PLAN VIEW 'cover may be solid with piped inlet NTS cleanouL wye with waterligh[ Cap baffle 18" twT min. out pipe b, gravel drain mck sand layer 6" pert. pipe w/geolexlile Fabric wrap SECTION A -A NTS sand fil[erchamber gratedl3Dv�ar removable D� D cover (optional) 12" min'- sediment chamber 15' max. sand layer (12") optional inlet pqm �^' W rABt drain rock (12") - • �, 6 pert. pipe w/geotextile Ter L fabric wrap " See text for sizing SECTION B-B NTS 2009 Surface WQ,CrDesign Nlaa6al u9n-009 6-133 THE CONTRACTOR SHALL BE FULLY RESPONSIBLE FOR THE LOCATION AND AARDV PROTECTION OF ALL EXISTING UTILITIES AND SHALL VERIFY ALL �C Ay Os WAayr, UTILITY LOCATIONS PRIOR TO Z N CONSTRUCTION BY CALLING THE: UNDERGROUND LOCATE LINE: a 1-800-424-5555 A MINIMUM OF 48 HOURS PRIOR s�/ovaL �G TO ANY EXCAVATION CITY OF FEDERAL WAY DATE DRAWING NO. ZO� LA10/16/2013 PANTHER LAKE OPEN SPACE UT501 APPROVED BY: 818 Stewart Street, Suite 1120 (CITY ENGINEER) (DATE) SCALE FEDERAL WAY ,,oBNo. 11SIGM1 Seattle, Washington, (206) NONE STANDARD DRAINAGE DETAILS Phone (206) 324-5500 Fax (206) 32&1680 IAEV2LOPLIENr ENCMNEERI dIR1Es SHEET 34 OF 38 0 4 z t0 cL J o<2o 'o�R<zzo •- �sog E3 z. ammo 0 H z~gin r NE 1/4 SEC. 19, T 21 N, R 4E,�,W,M. ----I {---- �----------------- _----r i----------` - — I / ! I 1 1 I ! I I 1 / I I A I f I I I I I li I /•I _ i SHEET 391 -__-` _--------- rt • % __ J -'__ 1 1 l EET 41 l f'_=SHE.ET4.0;' I PANTHER I i LAKE PROPOSED TRAIL r 1 IMPROVEMENTS, I TYPICAL (SEE I CIVIL PLANS) KING I I! I 1 I COUNTY A -I. 1• I I _- AQUATIC CENTER a i SHEET 3$ y I � ,' k. y 85% SUBMITTAL DE57GNED HM•CL DRAWN CL CHECKED HM I / • ' 'l I I CONSTRUCTION BOUNDARY i / l i PROPOSED NEW PARKING LOT (SEE _ I CIVIL PLANS) V I u. I r ! SHEET V - - - - - - - - - PANTHER LAKE PARK 200 SW CAMPUS DR FEDERAL WAY, WA 98023 "0 L)RIVE CITY OF Federal Way CITY OF FEDERAL WAY APPROVED BY: (GITY ENGINEER) EXISTING CONDITIONS LEGEND PANTHER LAKE WETLAND 80UNDAIRY (APPROXIMATED FROM BROWN AND CALDWELL, 1992) — — —PANTHER LAKE WETLAND BUFFER SHEET 85% SUBMITTAL DE57GNED HM•CL DRAWN CL CHECKED HM I / • ' 'l I I CONSTRUCTION BOUNDARY i / l i PROPOSED NEW PARKING LOT (SEE _ I CIVIL PLANS) V I u. I r ! SHEET V - - - - - - - - - PANTHER LAKE PARK 200 SW CAMPUS DR FEDERAL WAY, WA 98023 "0 L)RIVE CITY OF Federal Way CITY OF FEDERAL WAY APPROVED BY: (GITY ENGINEER) EXISTING CONDITIONS LEGEND PANTHER LAKE WETLAND 80UNDAIRY (APPROXIMATED FROM BROWN AND CALDWELL, 1992) — — —PANTHER LAKE WETLAND BUFFER SHEET INDEX - 35 MITIGATION PLAN SHEET OVERVIEW 36 IMPACTS AND MITIGATION AREAS 37 IMPACTS AND MITIGATION AREAS 38 IMPACTS AND MITIGATION AREAS 39 IMPACTS AND MITIGATION AREAS 40 IMPACTS AND MITIGATION AREAS 41 IMPACTS AND MITIGATION AREAS 42 PLANTING TYPICALS AND PLANT SCHEDULE 43 PLANTING DETAILS AND MITIGATION PLAN NOTES NOTEs 1. CRITICAL AREAS DELINEATED 8Y BROWN AND CALDWELL IN 1992, UNLESS AS OTHERWISE NOTED. 2, SURVEY AND SITE PLAN RECEIVED FROM HUITT ZOLLARS. gENCHMARKSMATVM: HORIZONTAL: KING COUNTY SURVEY CONTROL, WASHINGTON STATE PLANE, NORTH ZONE. NAD 83191. VERTICAL: NAVD 88. CONTRACTOR'S NOTES: 1. CONTRACTOR SHALL RECORD ANY FIELD DEVIATION FROM ENGINEERING PLAN, THESE RECORDS SHALL BE KEPT ON CONSTRUCTION DRAWINGS AND TURNED OVER TO ENGINEER UPON COMPLETION OF PROJECT. CONTRP,GTCR 51iALL BE SULLY RESPONSIBLE FOR THE LOCATION AND PROTECTION OF ALL EXISTING UTILITIES AND SHALL VERIFY ALL UTILITY LOCATIONS PRIOR TO CONSTRUCTION BY CALLING THE: UNDERGROUND LOCATE LINE: 1-800-424-5555 A MINIMUM OF 48 HOURS PRIOR TO ANY EXCAVATION I � �sosnu, slreal so„u tD ATE 1 F-1LE 110812013 PANTHER LAKE (DATE) MITIGATION PLAN SHEET OVERVIEW " =100' yTATB �r DRAWING NO. 35 SHEET 35 OF 43 0 x z .fm -j o<Zo ono z U��21 ammo nm� air LLma� 85% SUBMITTAL DESIGNED HM.CL DRAWN CL CHECKED HM NE 1/4 SEC. 19, T 21 N, R 4E, W.M. ` MATCHLINE SHEET 37 _-------_—,----.--------------------------`a-------------------------------- _----------- TEMPORARY IMPACT, c I USE PLANTING TYPICAL "C" - 2,696 SF e USE PLANTING TYPICAL "B" tti ti -� • { I TEMPORARY i r IMPACT (PLANTING TO BE DETERMINED) I< r TEMPORARY IMPACT, USE PLANTING TYPICAL "C" d2 TEMPORARY IMPACT (PLANTING j J • - - TO BE DETERMINED) USE PLANTING TYPICAL "B" 42 - _ _ _ ► �, i 77 r`' r��• __ _ - -'� - r _ ' TEMPORARYIMPACT, I' - 9, f •� _ _ _ . • _ _ - USE PLANTING TYPICAL „C" 42 T TEMPORARY IMPACT ti I . -. • .. '� _ --� _ = c -. (PLANTING TO BE, l� DETERMINED) \' t fJ `� •, TEMPORARYIMPACTS �y USE PLANTING TYPICAL f - D_ CITY OF FEDERAL WAY DATE PANTHER LAKE PARK 11/08/2013 —��- APPROVED BY: 200 SW CAMPUS DR (CITY ENGINEER) (GATE) SCALEcnnmoF ^ FEDERAL WAY, WA 98023 Federal Way' '�zY"� " (OLVELOPMenT E„ ) (OATS) 1" = 30' FW[Aµ now. 9TAN4oa C 'p" N ' / s LEGEND PANTHER LAKE WETLAND BOUNDARY (APPROXIMATED FROM BROWN AND CALDWELL. 1992) — — WETLAND BUFFER PERMANENT BUFFER IMPACT- 42,259 SF TEMPORARY BUFFER IMPACT AREA'- 33,207 SF (SEE PLANTING TYPICAL ON SHEET 42) TEMPORARY BUFFER IMPACT AREA -15.805 SF (PLANTING TO BE DETERMINED IN COORDINATION WITH CITY) PROPOSED MITIGATION AREA' -42,882 SF (SEE PLANTING TYPICAL ON SHEET 42) 'SEE SHEET 42 FOR PLANT SCHEDULE NOTE: AREA CALCS ARE FOR THE ENTIRE PROJECT SCALE)NFEET) a is w ae I!;: T5a son sa.r satin 4�iA fl li�l 11 Ll "ntlam�VA 9B53! PANTHER LAKE IMPACTS AND MITIGATION AREAS STATE MAf RKa CARF �PATsiGTE1M-1�67 DRAWING NO. 36 SHEET 36 OF 43 3 0 z� g a FI 0 U f/l K F Y Q Q K W W N 2 2 o H N U� W � Oo K� a'm _� ww ��_ z~ w w> �Q LLw Z 0 on Z ono 85% SUBMITTAL '—A DESIGNED HM,CL iti ui iti � DRAWN CL wj~'w' CHECKED HM u r¢i3a�x $YIA R r 1 TEMPORARY IMPACTS,TYP. 1 USE PLANTING TYPICAL "C" NE 1/4 SEC. 19, T 21 N, R 4E, W.M. \ f`r � �,y♦♦ `, [ ;♦ � 1 •s � ♦W \ ♦ ti \ 7. NOTE, WETLAND FLAGS Al-A7 AND OHWM ` $ FLAGS 11--81-/1R-8R DELINEATED BY THE 00 WATERSHED COMPANY ON 9-13-13 j co W U) LLJ 'r t Z f ! J ! _ 4,925 SF n I (� SEE PLANTING TYPICAL "A" 42 ) Q � I � a ►} PREVIOUS WETLAND BOUNDARY r., •. 1' 7 I ----- �;;�--_.—_-'------------------------------------------- MATCHLINE SHEET 40 PANTHER LAKE PARK 200 SW CAMPUS DR FEDERAL WAY, WA 98023 CITY OF FEDERAL WAY [DATE APPROVED BY: 11/08/2013 CITY OF (CITY ENGINEER) (DATE)Federal Way3m,,-- mw- c1 ° = 30' F!0lIIAl WAY-VM N003 (DEVELOPMENT ENGINEER) (DATE) LEGEND PANTHER LAKE WETLAND BOUNDARY (APPROXIMATED FROM BROWN AND CALDWELL, 1992) — — — WETLAND BUFFER PERMANENT BUFFER IMPACT- 42, 259 SF TEMPORARY BUFFER IMPACT AREA'- 33,207 SF (SEE PLANTING TYPICAL ON SHEET 42) TEMPORARY BUFFER IMPACT AREA-15,805 SF (PLANTING TO BE DETERMINED IN COORDINATION WITH CITY) PROPOSED MITIGATION AREA- -42,882 SF (SEE PLANTING TYPICAL ON SHEET 42) 'SEE SHEET 42 FOR PLANT SCHEDULE NOTE: AREA CALCS ARE FOR THE ENTIRE PROJECT (C SCALE IIN FEET) 0 15 30 60 II ]505. SVe '};\TI III II _, NlMlentl WA 98033 93033 PANTHER LAKE IMPACTS AND MITIGATION AREAS STA1E y QA \\\ C ovrrvcxIt ixLlw DRAWING NO. 39 JOB NO. 15104801 SHEET 39 OF 43 • cj� z~ w> �a LLm NE 114 SEC. 19, T 21 N, R 4E, W.M. LEGEND PANTHER LAKE WETLAND BOUNDARY (APPROXIMATED FROM BROWN AND CALDWELL, 1992) — — — WETLAND BUFFER PERMANENT BUFFER IMPACT- 42,259 SF TEMPORARY BUFFER IMPACT AREA- 33,207 SF (SEE PLANTING TYPICAL ON SHEET 42) TEMPORARY BUFFER IMPACT AREA -15,805 SF (PLANTING TO BE DETERMINED IN COORDINATION WITH CITY) PROPOSED MITIGATION AREA' - 42.882 SF (SEE PLANTING TYPICAL ON SHEET 42) 'SEE SHEET 42 FOR PLANT SCHEDULE NOTE: AREA CALCS ARE FOR THE ENTIRE PROJECT I owrvrsnrc 1 uvlrn�, 1 a, 1 � r. \ USE PLANTING TYPICAL SCaIE IN FEET) \` 0 1fi 30 60 Ge t ti III )50 3trN Slreei SouN NX* 6`:AII'll.l lr l' �mlll01f 85% SUBMITTAL . ;,;.,::.;, :;en':',:... w. ,�-MCAW-> M D�;. �,. w oS.GWff r — ' 1 CITY OF FEDERAL WAY DATE DRAWING NO. DESIGNED HM,CL PANTHER LAKE PARK !; i a �`� 11/08/2013 PANTHER LAKE 40 V , APPROVED BY: IMPACTS AND MITIGATION AREAS JOB NO. 15104801 DRAWN CL 200 SW CAMPUS DR CI'•=F �l (CITY ENGINEER) (GATE) FEDERAL WAY, WA 98023 SCALE ill CHECKED HM m r T x eV �� Federal Warr-cuea+a wnr wn�uwl ur.�Nr 1 = 30 SHEET 40 OF 43 mcvn naurNr c ce1 rnarn — om,D oom❑ 10 HI 85% SUBMITTAL 56 DESIGNED HM,CL <mM2 p p: DRAWN CL w>pw CHECKED tL_ R, LLma7x NE 1/4 SEC. 19, T 21 N, R 4E, W.M. W I a y • . . . 1 - . s UJ I r i r W .. • r . h 1 - i ' 18,160 SF SEE PLANTING TYPICAL „A" {a 1 ~� \ 13,535 SF TEMPORARY IMPACTS, C \ SEE PLANTING USE PLANTING TYPICALL "C" aZ \ TYPICAL "A" a� 1 i i - - - - - - - - - - - - - - ------- /----------------•------------------\:----------- PANTHER LAKE PARK 200 SW CAMPUS DR FEDERAL WAY, WA 98023 [:I'l� GF Federal Way oea TMw v; Aeecoa CITY OF FEDERAL WAY DATE APPROVED BY: 1 1 /08/201 3 (CITY ENGINEER) (DATE) SCAL ,_._, 1 1'I = 30' LEGEND PANTHER LAKE WETLAND BOUNDARY (APPROXIMATED FROM BROWN AND CALDWELL, 1992) — — — WETLAND BUFFER / . PERMANENT BUFFER IMPACT-42, 259 SF TEMPORARY BUFFER IMPACT AREA`- 33,207 SF (SEE PLANTING TYPICAL ON SHEET42) TEMPORARY BUFFER IMPACT AREA-15,805 SF (PLANTING TO BE DETERMINED IN COORDINATION WITH CITY) PROPOSED MITIGATION AREA* -42.882 SF (SEE PLANTING TYPICAL ON SHEET 42) `SEE SHEET42 FOR PLANT SCHEDULE NOTE: AREA CALCS ARE FOR THE ENTIRE PROJECT 3 i � (p a c'M W' W U7 U_I Z J 2 U H a 1 0 1530 fi0 XTAT6 NA fi 750 SouN iEC= 1. WAS K9033 IMIa,q WA 9 PANTHER LAKE DRAWING NO- 41 IMPACTS AND MITIGATION AREAS �59'50. iawreol - SHEET 41 OF 43 c� 0 x n m� J oa�o .. Z wcmZ ammo www2 mmm¢ <F:pz zwFw JQO JN LL rna❑ lu �� ■ im o • � l �r�♦� �� .III,. 50' PLANTING TYPICAL "B" PLANTING SCHEMATIC FOR SUNNY AREAS PLANTING TYPICAL "C" 85% SUBMITTAL DESIGNED HM,CL DRAWN CL CHECKED HM PANTHER LAKE PARK 200 SW CAMPUS DR FEDERAL WAY, WA 98023 NE 1/4 SEC. 19, T 21 N, R 4E, W.M. GENERAL PLANTING NOTES 1. PLANTING AREAS ARE APPROXIMATE AND HAVE BEEN BASED ON FIELD OBSERVATION. ADJUSTMENT IN THE FIELD BY THE RESTORATION SPECIALIST MAY BE NECESSARY_ KEEP ALL MITIGATION AREAS OUTSIDE OF EXISTING TRAILS. 2. CLEAR AND GRUB OUT THE ROOTS OF ALL INVASIVE SPECIES WITHIN THE PLANTING AREA BEING CAREFUL NOT TO DISTURB EXISTING NATIVE VEGETATION. 3. EXCAVATE TO SUBGRADE, 12 INCHES FROM FINISH GRADE, FOR THE PLACEMENT OF 12 INCHES OF TWO-WAY TOPSOIL IN THE TEMPORARY IMPACT AREAS. SEE SPECIFICATIONS FOR ADDITIONAL INFORMATION. ALL OTHER PLANTING AREAS TO RECEIVE 4 INCHES OF COMPOST INCORPORATED INTO EXISTING SOIL. SEE SPECIFICATIONS. 4. ALL PLANTINGS TO RECEIVE SPECIFIED MULCH RINGS. PLANTING SCHEMATIC FOR SHADY AREAS PLANT SCHEDULE TREES OTY SIZE NOTES 0 ACER MACROPHVLLUM/BIG LEAF MAPLE 97 ALL TREES 51471E BE 3 GAL. - 0 ALNUS RUBRA / RED ALDER 101 l FRAXINUS LATIFOLIA / OREGON ASH 16 USE FOR TYPICAL'B' ONLY PICEA SITCHENSIS / SITKA SPRUCE 18 USE FOR TYPICAL "B" ONLY POPULUS BALSAMIFERA/ BLACK COTTONWOOD 62 PSEUDOTSUGA MENSZIESII I DOUGLAS-FIR 172 THUJA PUCATA / WESTERN RED CEDAR 153 PLANT IN SHADY AREAS ONLY V- TSUGA HETEROPHYLLA/HEMLOCK 75 SHRUBS SIZE NOTES } ACER CIRCINATUM /VINE MAPLE 130 130 ALL SHRUBS SHALL BE 7 GAL CORNUS SERICEA/RED TWIG DOGWOOD 53 USE IN TYPICAL "6"ONLY CORYLUS CORNUTA/ WESTERN HAZELNUT 110 GAULTHERIA SHALLON I SALA 782 PLANT IN SHADY AREAS ONLY OHOLODISCUS DISCOLOR / OCEANSPRAY 192 (. .� MAHONIA NERVOSA/DULL MAHONIA 487 m O OEMLERIA CERASIFORMIS / OSOBERRY 253 PLANT IN SHADY AREAS ONLY {� PHYSOCARPUS CAPITATUS / PACIFIC NINEBARK 46 USE IN TYPICAL "B" ONLY W D RIBES SANGUINEUM / RED FLOWERING CURRANT 110 ROSA NUTKANA / NOOTKA ROSE 53 USE IN TYPICAL "B" ONLY ��J RUBUS SP—.ILIS/ SALMONBERRY 299 " SAL. SITCHENSISI SITKA WILLOW 25 USE IN TYPICAL "B" ONLY T SAMBUCUS RACEMOSA /RED ELDERBERRY 41 PLANT IN SHADY AREAS ONLY l I 1 SYMPHORICARPOS ALBUS I SNOWBERRY 432 �7�!l-ii GROUNDCOVER OTY SIZE NOTES ATHYRIUM FIUX-FEMINA/LADY FERN 147 ALL USE IN TYPICAL "B" ONLY, IN SHADY AREAS ONLY GROUNDCOVER ® POLYSTICHUM MUNITUM/SWORD FERN 1,037 SHALL BE 1 GAL CITY OF FEDERAL WAY DATE PANTHER LAKE APPROVED BY: 1 1 /08/201 3 CITY OF (CITY ENGINEER) (DATE) SCALE PLANTING TYPICALS Federal Wav .. ;:AY:WMI0,03 .......... ill =10' SCALE (IN FEET) 0 5 10 20 ]50 ShN Svea15au1� \i A TI =.> : 11 KIMIanE WA 9603J p STATE wcr cERTsI%{TS Id Ip DRAWING NO. 42 SHEET 42 OF 43 6 U na❑ z w c�nZ amm'0 www, �22< <Frz Wj0 LLma� 85% SUBMITTAL DESIGNED HM.CL DRAWN CL CHECKED HM MITIGATION PLAN NOTES Executive Summary This project restores and enhances buffer areas of Panther Lake Wetland in compensation for temporary and permanent impacts arising from a proposed new parking lot and trail system. Temporary impacts associated with grading for the parking lot and new trail will be revegetated with native species. Weed removal and replanting is planned in several areas around the lake to mitigate for permanent buffer losses due to parking lot and new trail construction. Areas of sparse vegetation near the wetland boundary below and north of the parking lot will be planted with a dense assemblage of native plants. Buffer enhancement proposed is slightly larger than project impacts. Due to the large size and irregular nature of areas proposed for planting, this plan relies on field location of individual plants. Experienced mitigation specialists will need to work closely with plant installation crews to ensure the mitigation is installed in the correct locations to achieve the goals of the plan. Project Goals The goal for this project is to restore and improve functions in 85.141 square feet of wetland buffer by the following actions: a) Remove and control invasive weeds, where present. b) Establish a diverse assemblage of native woody vegetation (shrubs and sapling trees). c) Achieve sufficient plant density within the mitigation areas to improve habitat and limit re -invasion by invasive vegetation. Performance Standards The standards listed below will be used to judge the success of the plan over time. If the standards are met at the end of the five-year monitoring period, the mitigation site will be considered successful and the project will have met all critical area permitting obligations. PS 1) Survival/diversity: a)100 % survival of all woody plantings at the end of Year One. This standard may be met through establishment of installed plants or by replanting as necessary to achieve the required numbers. b) 80 % survival of all woody plantings at the end of Year Two. This standard may be met through establishment of installed plants or by replanting as necessary to achieve the required numbers. Survival in Year Three and beyond is difficult to track. Therefore, a diversity standard is proposed in place of survival (c., below). c) Establish at least 3 native tree species and 6 native shrub species by Year Three and maintain this level of diversity through Year Five. PS 2) Native woody vegetation cover: Achieve at least 60 cover of native woody species by the end of Year 3. Volunteer species may count towards this standard. In areas with existing forest canopy, this standard applies to planted and volunteer understory shrubs and sapling trees. Existing canopy trees do not count towards this standard. PS 3) Native woody vegetation cover: Achieve at least 80 cover of native woody species by the end of Year 5. Volunteer species may count towards this standard. In areas with existing forest canopy, this standard applies to planted and volunteer understory shrubs and sapling trees. Existing canopy trees do not count towards this standard. PS 4) Invasive species standards: No more than 15 % cover of invasive species in the mitigation area in any monitoring year. Contingency plans and adaptive management These plans have been prepared to ensure success to the maximum practicable extent. However, habitat creation and enhancement is inherently unpredictable. Quality and consistency of installation and materials, maintenance, weather pattern extremes (including water level fluctuations), wildlife damage, vandalism and other factors can singly or in combination change conditions at mitigation sites and affect eventual success of these plans. Therefore, adaptive management should be employed to evaluate problems as they arise and develop flexible and practical solutions. Examples can include but are not limited to plant substitution, changes in target vegetation classes, soil amendment, additional and more frequent weed control, etc. As a last resort, modification of performance standards can be necessary. Any actions involving major departures from the original plan or goals and performance standards should be discussed and agreed to with regulatory agencies ahead of implementation. As -built Plan An as -built plan will be prepared within 30 days of substantially complete construction of the mitigation area. The as -built plan will document substantial conformance with these plans and also will disclose any substitutions or other non -critical departures. The as -built plan will establish vegetation transects/plots, baseline plant installation quantities (based on sample counts or invoices), and photo points that will be used throughout the monitoring period to measure the performance standards overtime. The as -built documentation should include a markup of the original plan noting any departures, plus the locations of transects/plots and photo points. Final planted polygons will be located and mapped using either traditional survey methods or a high -accuracy GPS unit and correction software. PANTHER LAKE PARK 200 SW CAMPUS DR FEDERAL WAY, WA 98023 CITY OF Federal Way NE 1/4 SEC. 19, T 21 N, R 4E, W.M. Monitoring Methods This monitoring program is designed to track the success of the mitigation site over time by measuring the degree to which the performance standards listed above are being met. Transects/Plots will be used to track native plant and invasive weed cover over time within the mitigation area. Areas outside the established transects will be visually monitored to verify that performance standards are being met. Photopoints shall be established at either end of all transects and at other key landmarks as determined by the monitoring field crew. Performance monitoring shall occur twice annually for five years. A spring monitoring visit shall record necessary weeding, invasive control, and other maintenance needs. The city and/or maintenance crews shall be notified of necessary early season maintenance. The second visit shall occur in late summer or fall and contain the bulk of the monitoring work. The annual monitoring report will relate the following information: 1) General summary of the spring visit. 2) First- and second -year counts of surviving and dead/dying plants by species in the planting areas. 3) Estimates of native woody species cover along transects or within plots. Existing forest canopy is excluded from this cover estimate. 4) Estimates of invasive weed species cover along transects or within plots. 5) Counts of established native species to determine site diversity. 6) Notes and/or sketches of invasive weeds or bare areas outside of transects and plots. 7) Photographic documentation from transects ends and established reference points. 8) Intrusions into the planting areas, vandalism, trash, and other actions detrimental to the overall success of the mitigation area. 9) Recommendations for maintenance in the mitigation areas. CITY OF FEDERAL WAY APPROVED BY: (CITY ENGINEER) NOTES: 1. PLANTING PIT SHALL NOT BE LESS THAN (2) TIMES THE WIDTH OF THE ROOT BALL DIA 2 LOOSEN SIDES AND BOTTOMS OF PLANTING PIT 3. SOAK PLANTING PIT AFTER PLANTING REMOVE FROM POT & ROUGH -UP ROOT BALL BEFORE INSTALLING. UNTANGLE AND STRAIGHTEN CIRCLING ROOTS - PRUNE IF NECESSARY. IF PLANT IS EXCEPTIONALLY ROOT -BOUND, DO NOT PLANT AND RETURN TO NURSERY FOR AN ACCEPTABLE ALTERNATIVE 4" SPECIFIED MULCH LAYER. HOLD BACK MULCH FROM TRUNK/STEMS 3" MIN HT WATER BASIN FINISH GRADE REMOVE DEBRIS AND LARGE ROCKS AND BACKFILL WITH NATIVE SOIL FIRM UP SOIL AROUND PLANT 0 TREE AND SHRUB PLANTING I Scale: NTS DATE 11 /08/2013 (DATE) SCALE 'In —30' (DEVELOPMENT ENGINEER) (DATE) NOTES: 1. PLANT GROUNDCOVER AT SPECIFIED DISTANCE ON -CENTER (O.C.) USING TRIANGULAR SPACING, TYP. 2 LOOSEN SIDES AND BOTTOM OF PLANTING PIT AND REMOVE DEBRIS 3. LOOSEN ROOTBOUND PLANTS BEFORE INSTALLING 4. SOAK PIT BEFORE AND AFTER INSTALLING PLANT 4" SPECIFIED MULCH LAYER. HOLD BACK MULCH FROM STEMS SOIL AMENDMENTS AS SPECIFIED GROUNDCOVER PLANTING Scale: NTS )50 s" S".t"' V}A IRNILU KIMIanE WA9B033 aryz.z.,_ PANTHER LAKE MITIGATION PLAN NOTES AND PLANTING DETAILS S ratTF 1YM18H \\ v, rw Lll cEilnrcart.o. ua DRAWING NO. 43 SHEET 43 OF 43