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03-16-2021 Sound Transit OMFOperations Maintenance Facility South Draft EIS Federal Way City Council Briefing March 16, 2021 VSOUNDTRANSIT Agenda overview • Welcome • OMF South Draft Environmental Impact Statement (DEIS) Findings o Three site alternatives o Draft EIS differentiating &key results o Public outreach &environmental review timeline Operations and Maintenance Facility South Operations and Maintenance Facility (OMF) South • Included in ST3 Plan • One of four OMFs planned for the region • Storage for 144 light rail vehicles • Location and size supports light rail expansion in multiple corridors • Will create living -wage jobs for over 470 people Link light rail © Everett son Ballard -Tacoma OMF North son Mariner -Redmond (Study area al Everett -West Seattie son Kirkland -Issaquah © Mariner Lynnwood N Shoreline Northgate Ballard Kirkland © Redmond uw 0S OMF East Seattle Seattle West Mercer J�ri Island OMF Central SeaTac/Airport Angle Lake Des Moine! Bellevue Kent Federal ~ Way OMF South Study area Tacoma 0 1 Tacoma Fife Dome Issaquah ST Operations and Maintenance Facilities Siting the OMF South • Strategically located in the South Corridor to help keep the entire Link Light Rail system functioning Location no more than 1.5 miles south of Federal Way Link Extension (FWLE) supports efficient connection to the operating light rail mainline when the OMF South opens Draft EIS Evaluation Process Sound Transit Board identified three sites for study in Draft Environmental Impact Statement 24 sites 20 sites 6 sites 3 sites We are here: Publication Date March 2021 A N ti�s,e,ake 5 200th St T Kent/Des Moines S 240th St Des Moines Midway Landfill 4 =aePa� Puget Sound 99 South 272nd Kent s vmd sr Street S., take Federal Way $1PeI LA, s 376th St Federal Way 5 320th St Transit Center Celeb,0- Park South 336th St South 344th Si r` 18 1141115t OMF South Evaluating three sites in the Draft EIS Midway Landfill South 336th Street South 344th Street Alternative Alternative Alternative a Lowe's a L a's t 0 L lD N I� ■ L m t!1 N N Dicks rn S 244th St Drive -In , r"► S 246th St 1 S 248th St J, S 248th St 99 Midway Landfill S 252nd St ______ S 252nd St S 336th St Christian ---�`` Faith a ; Center a' m 5340thst;__��_ t • 5 S 341 st P1 s L_ S 344th St 0D cr Walmart `N`s S 336th St Christians '_"`"•` r � yy Faith .a Center ; S 340th St 1 r Id S 341 st PI . r d fY 1 S 344th St 1. fi Walmart q 115 OMF South Job Creation OMB Sooth will employ approximately 470 people • Primarily union operations and maintenance jobs • Training facility supports skilled jobs and potential for apprenticeship training partnerships • Essential jobs to keep transit system operating Living wages and union jobs • Wages at OMF South will be comparable to average wages at existing Central OMF in Seattle • Average wage for employees at existing OMF is over $40/hour or approx. $83,000/year OMF South Job Creation New positions in the following joh categories: Vehicle Maintenance Light Rail Vehicle Cleaning Track Maintenance Signal Maintenance Traction Power Maintenance Supervisory Control and Data Acquisition Maintenance Light Rail Vehicle Operators Facilities Mechanical Maintenance Facilities Custodial Facilities Landscaping Facilities Electrical Maintenance Leads and Chiefs within each category and Administrative Environmental Review • Draft EIS was prepared under State Environmental Policy Act (SI PA), with Sound Transit as lead agency •Analysis includes affected environment, impacts and potential mitigation measures • Project will comply with National Fnvironmental Policy Act (NFPA), as applicable, following ST Board identification of a preferred alternative What is Studied During Environmental Review? Transporta rior► • Regional and local traffic • Non -motorized facilities and modes • Freight movement • Construction traffic • Transit Narurai environment • Air quality and greenhouse gas emissions • Ecosystems and fish and wildlife habitat • Water resources • Geology and soils Built environment • Acquisitions, displacements and relocations • Construction impacts • Cultural, historic and archaeological resources • Economic effects • Energy use • Hazardous materials • Impacts on low-income and minority populations • Land use • Noise and vibration • Parks resources • Public services and utilities • Visual resources Three Site Alternatives — Key Features Common Features/Facilities Supported on Each Site • Storage tracks for 144 vehicles • Yard track and lead tracks connecting to the mainline tracks • Operations and maintenance building • Maintenance of way (MOW) building • Link system -wide storage (LBWS) building • Yard area for outside storage • Training Tracks -� MidwayLandfill Alternative r Site Design Buildin (Structure i Existing Drainage • In Kent, between S 24 6t h Esc; Pn nti Training Track LL_ GuaSh.%�k Pond St and S 252nd St, and Unk Parking Median Ym,',$dQ $� between I -5 and SIR 99 Sto•ag� �. Tracks Apron Park Ballast Walkway WIFiti WalkwaySite footprint 68 acres � tii Ballast Ballastast �--� Landscape � Road • Adjacent to FWLE no F FWLE Elevatod Track additional mainline tracks) Trarn4Fl4 .� � �r Fi/VLE At -Grade Track --- City Boundary Yard Track Lead Track N Yard LQ d t� Its2Rgrtd Gale NIB Landfill Site Preparation Options - Overview i .......................... Platform option • Buildings and tracks supported by 3.5-foot-thick concrete platform (-35 acres) on -700 drilled shafts at 120 - 180 feet deep SITE FINISHE❑ GRADE DRILLED SHAFTS EXCAVATE & BACKFILL EXISTING GRADE BOTTOM OF LANDFILL FILL Hybrid option • Partial excavation, tracks supported by a 1-foot- thick concrete slab over 3-foot-thick beam system (-30 acres), buildings supported on -110 drilled shafts at - 140 feet deep Full Excavation option • Complete excavation/ replacement with imported soil Mainline track* to Federal Way Alternatives *Mainline track to be built as part of TDLE regardless of which OMF South alternative is selected S 330TH ST W 99� w Q N S 336TH ST RCh tian Faith nter 3 r U U Qe Site Boundary Federal Way 0 South 3361h Street Alternative Transit Center Ow w 0 South 344ih Street Alternative o M N Mainline Elevated Track S 324TH ST 11 Mainline At -Grade Track FWLE Elevated Track +r y Terminus of S. 344t" St Alternative Mainline S 348TH ST S 320TH ST Terminus of S. 336t" St Alternative Mainline South 336th Street Alternative MOW Link System - Wide Storage S Ua i`t Site Design BuildinglStructure Training Track Pond Parking Median Apron Ballast Walkway Walkway Ballast Landscape Road Mainline Elevated Track Mainline At -Grade Track In Federal Way, between S 336th St and S 341st Place, and between 1-5 and SR 99 Site footprint 59 acres 1.4 miles of connecting mainline track from FWLE terminus that will be part of TDLE One tail track design option Christian Faith Center '- � S �i#uI Se Sl7ack� .4 Walmart N mot¢ W 4. f Fmk South 5ystertr. 344th Street 0 Wid6 slomgmT#al n ing Traok Alternative mow In Federal Way, between S 336th St and S 344th St, and between 1-5 and 18th Place S Site Design • Site footprint 65 acres BuildinglStructure Training Track • 1.8 miles of connecting mainline Pond Parking Median track from Federal Way Link Capron Extension terminus that will be Ballast Walkway Walkway part of TDLE Ballast Landscapc • Two tail track design options Road ' Mainline Elevated Track tMainline At -Grade Track a� + Yard Track t — Lead Track Draft Environmental Impact Statement Site Comparisons & Differences Comparison of Key Site Characteristics & Residential ADisplacements (Units) Mid. I 0 336th 344th I Business Displacements (units) Mid. 336th 344th Comparison of Key Site Characteristics Community and Social Resource Impacts (Churches) Mid. I 0 336th 344th C" Estimated Employee rd 10% Displacements (People) Mid. 336th 344th Comparison of Key Site Characteristics i I Wetland rq Impacts (Acres) Mid. 1 0 336th 344th f&Forest l Impacts (Acres) Mid. M 336th 344th -t,- Stream m p a ct (Linear Feet) 33 6th 344th w Comparison of Key Site Characteristics Construction Duration (Years) P H E 336th 344th Midway Landfill Construction Options P Platform H Hybrid E Full Excavation ift Daily Construction Truck Trips (Maximum Trips) Pm H M E 336th M 344th M &)Io Annual operating Cost Estimate* Mid. 336th 344th Conceptual Cost Estimate* 0 N 3 1 0 $2.2 - $2.8 $1.8 - $2.3 d' 4 7 d' n 4 Midway - Midway - Hybrid Midway - Full South 336th South 344th Platform Excavation Street" Street" 2020 Conceptual Cost Estimate Range — ST long range Financial Plan $1.183B Mainline Information for Federal Way Sites Comparison of Key Mainline Track Characteristics for Federal Way Sites* 4!!2k Residential ! Business �, Estimated Employee Displacements � - - Displacements �`® p ��o Displacements (Units) (units) (People) 336th 47-59 336th I Q 344th 47-59 344th 1] 336th 13 344th 31 *Mainline track to be built as part of TDLE regardless of which OMF South alternative is selected Comparison of Key Mainline Track Characteristics for Federal Way Sites* Wetland At Forest Stream Impacts Impacts Impacts (Acres) (Acres) (Linear Feet) 336th 1.5 336th � 336th 11,800 344th 1.5 344th 1 10 344th 11,700 *Mainline track to be built as part of TDLE regardless of which OMF South alternative is selected Public Outreach NC Environmental Review Timeline Notifications Mailer Print and online ads Email listsery Property owner briefings Press releases Community listening sessions Website Social media SEPA Register 0 0 0 OMF South Environmental Review Milestones* 3/5 SEPA Draft EIS published 3/5 — 4/19 public comment period 3/24 & 3/30 : online public meetings & hearings ST Board identifies Preferred Alternative Final EIS issued ST Board selects project to be built Options to Participate and Comment • Online open house and comment form: omfsouth.participate. onIine Online public meetings and hearings- March 24 (5:30-7:30pm) & March 30 (11:OOam-1:OOpm) • Email OMFSouthDEIS@soundtransit.org • Voicemail: 206-257-2135 Mail comment to: OMF South Project c/o Hussein Rehmat, Environmental Planner Sound Transit 401 S. Jackson St. Seattle, WA 98104 Thank you. VSOUNDTRANSIT () soundtransit.org