Agency Projects

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Highway, Ferry and Rail Construction and Improvement Projects

The list below provides links to descriptions of WSDOT's major highway construction, ferry and rail projects. These pages provide project overviews and detailed financial information, schedules and local contact information.

Use these pages to:

  • Stay informed on scope, schedule and budget
  • Find out about traffic impacts and public meetings
  • Learn about environmental and tribal consultation practices
  • Get in touch if you have questions or comments

Click to link to interactive map showing statewide project locations
Use this interactive map to find the WSDOT projects in your area.

How are we doing?

Across the state, WSDOT is getting transportation projects built. An index of completed projects is also available.


You can click on the column headings (County or Region) to sort the list or you can click on Title for an alphabetized list of WSDOT's major projects. 
Nickel Funding Icon - indicates project is funded in part by the 2003 Legislative Transportation Funding Package.
Partnership Funding Icon - indicates project is funded in part by the 2005 Transportation Partnership Funding Package.
Quarterly Project Report Icon - click to open the most recent Quarterly Project Report.


CountyRegionTitle
  Kitsap, MasonOlympicBremerton Economic Development Study 
 Statewide Cable Median Barriers 
  Pend Oreille, Stevens, WhitmanEasternEastern Region Chip Seal 2008 
  Spokane, StevensEasternEastern Region Low Cost Intersection Improvements 
 SkagitFerriesFerry System - Anacortes Multimodal Terminal 
  KitsapFerriesFerry System - Bainbridge Island Ferry Terminal Improvement Project 
  KitsapFerriesFerry System - Eagle Harbor Maintenance Facility Project 
 SnohomishFerriesFerry System - Edmonds Multimodal Terminal 
 SnohomishFerriesFerry System - Mukilteo Multimodal Terminal 
  KingFerriesFerry System - Seattle Ferry Terminal at Colman Dock 
  BentonSouth CentralI-182 - Queensgate/Thayer Interchange Improvements 
  BentonSouth CentralI-182 - Road 100 Interchange Vicinity - Improvements - Complete November 2007 
 ClarkSouthwestI-205 - Mill Plain Exit - 112th Connector
 ClarkSouthwestI-205 - Mill Plain Interchange to NE 18th Street
KingUrban CorridorsI-405 - I-5 to SR 169 Stage 1 Widening
KingUrban CorridorsI-405 - I-5 to SR 169 Stage 2 Widening
 KingUrban CorridorsI-405 - NE 10th Street Bridge
 KingUrban CorridorsI-405 - NE 132nd St. Interchange Improvements 
 KingUrban CorridorsI-405 - NE 44th to 112th Ave. SE Widening 
 KingUrban CorridorsI-405 - NE 8th Street to SR 520 Improvement Project
  KingUrban CorridorsI-405 - Renton - Slide Repair and Culvert Replacement 
KingUrban CorridorsI-405 - South Bellevue Widening
 KingUrban CorridorsI-405 - Springbrook Creek Wetland & Habitat Mitigation Bank
King, SnohomishUrban CorridorsI-405 - SR 520 to I-5 Widening Project
 KingNorthwestI-405 - Sunset Blvd NE to NE 44th Street - Seismic Retrofit 
 KingUrban CorridorsI-405 - Totem Lake Freeway Station 
 SnohomishNorthwestI-5 - 172nd Street NE (SR 531 Smokey Point) Interchange Improvements 
 SnohomishNorthwestI-5 - 196th Street Braided Ramp 
 KingUrban CorridorsI-5 - 272nd Interchange Reconstruction
  WhatcomNorthwestI-5 - 36th Street to Slater Road Pavement Repairs 
  PierceOlympicI-5 - 47th Avenue SW to S 48th Street Median Barrier 
  SnohomishNorthwestI-5 – 52nd Ave W to SR 526 – NB paving 
 KingNorthwestI-5 - 5th Ave. NE to NE 92nd Street Noise Wall
  SnohomishNorthwestI-5 - Arlington City Limit Vic to Stillaguamish River - Paving 
 WhatcomNorthwestI-5 - Bakerview Road to Nooksack River Bridge
  WhatcomNorthwestI-5 - Blaine Exit Interchange Improvements 
 LewisSouthwestI-5 - Blakeslee Junction to Grand Mound 
 KingNorthwestI-5 - Boeing Access Road to King/Snohomish County Line Pavement Repair 
  Cowlitz, LewisSouthwestI-5 - Castle Rock to SR 505 Vicinity - Paving and Safety 
 SkagitNorthwestI-5 - Chuckanut Park and Ride 
 SkagitNorthwestI-5 - Conway to Cook Interstate Master Plan 
 WhatcomNorthwestI-5 - Downtown Bellingham On/Off Ramps - Ramp Reconstruction 
SnohomishNorthwestI-5 - Everett, SR 526 to US 2 HOV Lanes
WhatcomNorthwestI-5 - Fairhaven to Slater Interstate Master Plan 
 ThurstonOlympicI-5 - Grand Mound to Maytown Stage One - Add Lanes
 ThurstonOlympicI-5 - Grand Mound to Maytown Stage Two - Replace Interchange 
  Cowlitz, LewisSouth CentralI-5 - Koontz Road to Mellen St Vicinity – Paving and Safety 
  SnohomishNorthwestI-5 - Marysville to Stillaguamish River - Median Barrier 
 LewisSouthwestI-5 - Mellen Street Interchange Improvements 
 LewisSouthwestI-5 - Mellen Street to Blakeslee Junction 
 Lewis, ThurstonSouthwestI-5 - Mellen Street to Grand Mound
 SnohomishUrban CorridorsI-5 - Mountlake Terrace Freeway Station 
 KingNorthwestI-5 - Pierce County Line to Tukwila HOV Lanes - Open July 2007
 PierceOlympicI-5 - Port of Tacoma Road Interchange to King County Line - HOV Lanes
 ClarkSouthwestI-5 - Reconstruct Interchange at NE 134th
  KingUrban CorridorsI-5 - Reconstruction Projects
 KingUrban CorridorsI-5 - Roanoke Vicinity Noise Wall Project
 LewisSouthwestI-5 - Rush Road to 13th Street
  KingNorthwestI-5 - S. 320th Street City Center Access 
 KingUrban CorridorsI-5 - Ship Canal Bridge Noise Study
  SnohomishNorthwestI-5 - Snohomish River to Ebey Slough Paving 
  SnohomishUrban CorridorsI-5 - South Everett Freeway Station 
  KingNorthwestI-5 - South Seattle Vic. Seismic Retrofit 
 SkagitNorthwestI-5 - SR 11 Interchange and Josh Wilson Road Realignment 
KingNorthwestI-5 - SR 161/SR 18 Triangle Improvements
 CowlitzSouthwestI-5 - SR 432 Talley Way Interchange
 ClarkSouthwestI-5 - SR 501 Ridgefield Interchange
 ClarkSouthwestI-5 - SR 502 - Interchange
KingUrban CorridorsI-5 - SR 509 Corridor Completion and Freight Improvement Project
  SnohomishNorthwestI-5 - SR 532 to Hill Ditch Bridge Concrete Pavement Rehabilitation 
  SkagitNorthwestI-5 - West View School Noise Wall 
 WhatcomNorthwestI-5 - Whatcom County Drainage and Water Quality Improvement 
  Benton, Kittitas, YakimaSouth CentralI-82 - Safety - Kittitas, Yakima and Benton Counties 
  YakimaSouth CentralI-82 - South Union Gap Interchange Improvements 
  KittitasSouth CentralI-82 - Thrall Road to Manastash 
 YakimaSouth CentralI-82 - Valley Mall Blvd Interchange - Rebuild Interchange
  BentonSouth CentralI-82- SR 397 Intertie 
  KittitasSouth CentralI-90 - Easton Bridge Repair - Complete December 2007 
  KingNorthwestI-90 - Eastside Bridges - Seismic Retrofit 
  KingNorthwestI-90 - Homer Hadley Bridge Repair 
 SpokaneEasternI-90 - Latah Creek Bridge & Lindeke St. Bridge - Rail Upgrade 
 KittitasSouth CentralI-90 - Snoqualmie Pass East - Hyak to Keechelus Dam
 SpokaneEasternI-90 - Spokane to Idaho St Line 
  Adams, LincolnEasternI-90 - SR 21 to Fishtrap - Pavement Repair 
  KingSouth CentralI-90 - Stabilize Slopes West of Snoqualmie Summit 
KingUrban CorridorsI-90 - Two-Way Transit and HOV Operations
  GrantNorth CentralI-90 - West of George - Paving 
King, SnohomishNorthwestQuieter Pavement Evaluation 
  WhatcomRailRail - Bellingham Waterfront Redevelopment
 WhatcomRailRail - Blaine - Customs Facility Siding
  RailRail - Cascades Trainsets Overhaul
 LewisRailRail - Chehalis Junction - High Speed Crossovers 
 GrantRailRail - Columbia Basin Railroad Wheeler-Warden 286k Upgrades
 ColumbiaRailRail - Dayton Yard Rehabilitation - Port of Columbia County
 SnohomishRailRail - Everett - Curve Realignments and Storage Tracks
  SpokaneRailRail - Geiger - New Transloader
SpokaneRailRail - Geiger Spur/Airway Heights - New Rail Connection
  ThurstonRailRail - Intermodal Infrastructure Enhancement Project - Port of Olympia
 CowlitzRailRail - Kelso to Martin's Bluff - 3rd Main Line and Storage Tracks
  KingRailRail - King Street Station Renovation
 KingRailRail - King Street Station Track Improvements
  ClarkRailRail - Lewis and Clark RR - Vancouver Rail Improvements
 LewisRailRail - Morton Business Development Project
 SkagitRailRail - Mt. Vernon Siding Upgrade
 LincolnRailRail - New Creston Livestock Feed Mill
 LewisRailRail - Newaukum River - High Speed Crossovers 
 Grant, Lincoln, Spokane, WhitmanRailRail - Palouse River and Coulee City RR - Acquisition and Rehabilitation
 Columbia, Walla WallaRailRail - Port of Columbia/Wallula to Dayton Track Rehabilitation
  GrantRailRail - Port of Ephrata - Ephrata Spur Rehabilitation
  CowlitzRailRail - Port of Longview - Longview Rail Loop
 GrantRailRail - Port of Moses Lake/Northern Columbia Basin RR Engineering and Environmental
 StatewideRailRail - Produce Railcar Pool
  GrantRailRail - Quincy Short Haul Intermodal Pilot Project
  SnohomishRailRail - Stanwood - New Station
 SnohomishRailRail - Stanwood Siding Upgrades
PierceRailRail - Tacoma - Bypass of Point Defiance
  PierceRailRail - Tacoma Rail - Frederickson to Morton Track Rehab 
  PierceRailRail - Tacoma Rail - Tacoma Yard Switching Upgrades
 LewisRailRail - Tacoma Rail and Puget Sound and Pacific RR/Centralia – Reconfigure Rail
 ThurstonRailRail - Tenino - High Speed Crossovers
 ClarkRailRail - Vancouver - Rail Bypass and W. 39th Street Bridge
 YakimaRailRail - White Swan/Toppenish - Yakama Sawmill Traffic Upgrades
 Jefferson, KitsapOlympicSR 104 - Hood Canal Bridge Project 
  Grays HarborOlympicSR 105 - Johns River Bridge Painting 
 Grays HarborOlympicSR 109 - Moclips River Bridge
 ClallamOlympicSR 112 - Makah Reservation to US 101 - Stage One Safety
 ClarkSouthwestSR 14 - Camas-Washougal Widening & Interchange
 ClarkSouthwestSR 14 - Lieser Road Interchange Ramp Signalization
  SkamaniaSouthwestSR 14 - Marble Road Vicinity to Belle Center Road, Cape Horn Bridge Vicinity to Cape Horn Road 
 KlickitatSouthwestSR 142 - SR 14 to US 97 Roadside Safety
 ChelanNorth CentralSR 150 - W of Chelan - Install Lighting 
 KitsapOlympicSR 16 - Burley Olalla Interchange
 PierceOlympicSR 16 - Westbound Nalley Valley
 KitsapOlympicSR 160 - SR 16 to Long Lake Road
 PierceOlympicSR 161 - 36th to Jovita - Additional Lanes
 PierceOlympicSR 161 - SR 167 Eastbound Ramp
 PierceOlympicSR 162 - Orting Bridge For Kids 
  PierceOlympicSR 162 - Orville Road to SR 165 - Paving 
 PierceOlympicSR 162 - Puyallup River Bridge
  KingNorthwestSR 164 - Route Development Plan 
 KingUrban CorridorsSR 167 - 15th Street SW to 15th Street NW - HOV
 KingUrban CorridorsSR 167 - 8th to 277th Southbound HOT Lane
 KingUrban CorridorsSR 167 - HOT Lanes Pilot Project
PierceOlympicSR 167 - Tacoma to Edgewood New Freeway Construction
 KingUrban CorridorsSR 167 - Valley Freeway Corridor Plan
  KingNorthwestSR 169 - Green River Bridge Emergency Repairs 
 KingNorthwestSR 169 - SE 416th Intersection Project 
  GrantNorth CentralSR 17 - Moses Lake North - Paving 
 GrantNorth CentralSR 17 - Moses Lake to Ephrata - Widening
 GrantNorth CentralSR 17 - North of Moses Lake - Add Passing Lane 
 KingNorthwestSR 18 - Corridor from Auburn to I-90 
 KingNorthwestSR 18 - Issaquah Hobart Road to I-90
  JeffersonOlympicSR 19 - SR 20 Corridor Plan 
 SkagitNorthwestSR 20 - Fredonia to Interstate 5 - Additional Lanes
 SkagitNorthwestSR 20 - Quiet Cove Road Vicinity to SR 20 Spur
 SkagitNorthwestSR 20 - Sharpes Corner Vicinity - Interchange 
  IslandNorthwestSR 20 - Sidney Street to Scenic Heights 
 KingNorthwestSR 202 - Preston Fall City Road and Jct SR 203
  KingNorthwestSR 202 - SR 520 to Sahalee Way Widening
 SnohomishNorthwestSR 203 - Tolt Hill Road NE Vicinity Improvements 
  Ferry, LincolnEasternSR 21 - Keller Ferry Replacement 
 YakimaSouth CentralSR 22 - I-82 to Toppenish - Safety Improvements
  Spokane, StevensEasternSR 231 - Spokane River Bridge Deck Rehabilitation 
 YakimaSouth CentralSR 24 - I-82 to Keys Rd - Add Lanes - Open June 2007
 Benton, YakimaSouth CentralSR 24 - SR 241 to Cold Creek Rd - Add Passing Lanes
 BentonSouth CentralSR 240 - Beloit Rd to Kingsgate Way - Widen Roadway
 BentonSouth CentralSR 240 - Tri-Cities Additional Lanes - Complete June 2007
 YakimaSouth CentralSR 241 - Dry Creek Bridge Replacement 
 YakimaSouth CentralSR 241 - Rattlesnake Hills Vic. - Roadside Safety
  YakimaSouth CentralSR 241 - Yakima River Bridge - Replacement 
  StevensEasternSR 25 - Bossburg to Canada 
 GrantNorth CentralSR 26 - Intersection Illumination
 WhitmanEasternSR 27 - Pine Creek Bridge Replacement 
 WhitmanEasternSR 270 - Pullman to Idaho St Line - Additional Lanes
  SpokaneEasternSR 276 - North Pullman Bypass - Route Development Plan 
  DouglasNorth CentralSR 28 - E. End of the George Sellar Bridge
  DouglasNorth CentralSR 28 - East Wenatchee Area - Paving 
 DouglasNorth CentralSR 28 - Junction US 2/97 to 9th Street - Stage 1
  GrantNorth CentralSR 28 - Quincy Area - Paving 
  DouglasNorth CentralSR 28 - Rock Island Slope Stabilization 
  DouglasNorth CentralSR 28 - Wenatchee Eastside Corridor Study 
  GrantNorth CentralSR 282 - Ephrata - Safety 
 Chelan, DouglasNorth CentralSR 285 - George Sellar Bridge - Additional EB Lane
 ChelanNorth CentralSR 285 - W. End of the George Sellar Bridge - Intersection Improvement
  SpokaneEasternSR 290 - Starr Rd Intersection - Add Turn Lane 
  Spokane, StevensEasternSR 291 - Route Development Plan 
 MasonOlympicSR 3 - Belfair Area - Widening and Safety Improvements 
 MasonOlympicSR 3 - Belfair Bypass - New Alignment
  KitsapOlympicSR 3 - Pioneer Way and Big Valley Rd - Signals 
 KitsapOlympicSR 3 - SR 303 Interchange (Waaga Way)
 Pierce, MasonOlympicSR 302 - Establish New Corridor 
  KitsapOlympicSR 303 - Manette Bridge Bremerton Vicinity - Bridge Replacement
  KitsapOlympicSR 304 - Bremerton Tunnel 
  KitsapOlympicSR 305 - Poulsbo South City Limit to Bond Road
 KitsapOlympicSR 305 - Unnamed Tributary to Liberty Bay - Fish Barrier 
  CowlitzSouthwestSR 4 - East of County Line Park - Rockfall Work 
 PacificSouthwestSR 4 - SR 401 Roadside Safety Improvements
 WahkiakumSouthwestSR 4 - Svensen's Curve - Realign Roadway
PierceOlympicSR 410 - Additional Lanes and Signal
 YakimaSouth CentralSR 410 - Rattlesnake Creek - Stabilize Slopes
 PierceNorthwestSR 410 - White River 
  CowlitzSouthwestSR 432 - Rail Realignment Feasibility Study 
  CowlitzSouthwestSR 433 - Lewis and Clark Bridge Painter 
 ClarkSouthwestSR 500 - I-205 Interchange Improvements
 ClarkSouthwestSR 500 - St. Johns Blvd. - Interchange
ClarkSouthwestSR 502 - Widening From I-5 to Battle Ground
 ClarkSouthwestSR 503 - 4th Plain/ SR 500 Intersection - Add turn lanes 
 ClarkSouthwestSR 503 - Gabriel Rd. Intersection
 ClarkSouthwestSR 503 - Lewisville Park - Climbing Lane
 ThurstonOlympicSR 510 - Yelm Loop
 KingNorthwestSR 515 - SE 192nd Street to Benson Road: Access and Asphalt
 KingUrban CorridorsSR 518 - SeaTac Airport to I-5 / I-405 Interchange
  KingUrban CorridorsSR 518 - SR 509 Interchange Improvements 
 KingUrban CorridorsSR 519 - S Seattle Intermodal Access - Royal Brougham
KingUrban CorridorsSR 520 - Bridge Replacement and HOV Project
KingUrban CorridorsSR 520 - Pontoon Construction Project 
 KingNorthwestSR 520 - West Lake Sammamish Parkway to State Route 202
  SnohomishNorthwestSR 522 - Paradise Lake Road Interchange 
  SnohomishNorthwestSR 522 - Paradise Lake Road to Snohomish River Widening 
 SnohomishNorthwestSR 522 - Snohomish River to US 2, Four Lane Widening
KingNorthwestSR 522 - UW Bothell/Cascadia Community College Campus Access
  IslandNorthwestSR 525 - Clinton Ferry Terminal to Bob Galbreath Road - Paving 
  SnohomishNorthwestSR 526 - 40th Ave. W to Casino Road Paving and Safety Improvement 
  SnohomishNorthwestSR 528 - I-5 to SR 529 Paving 
 SnohomishNorthwestSR 529 - Ebey Slough Bridge Replacement 
 Skagit, SnohomishNorthwestSR 530 - Sauk River CED Bank Erosion 
 Island, SnohomishNorthwestSR 532 - Corridor Improvements 
  SkagitNorthwestSR 536 / SR 538 Paving 
  WhatcomNorthwestSR 539 - Horton Road to Ten Mile Road Widening
 WhatcomNorthwestSR 539 - I-5 Improved Access
 WhatcomNorthwestSR 539 - Ten Mile Road to Badger Road Widening
 WhatcomNorthwestSR 542 - Boulder Creek Bridge - Replace Bridge 
  WhatcomNorthwestSR 542 - Britton Road to Coal Creek Paving 
 WhatcomNorthwestSR 542 - Everson Goshen Rd. Vicinity to SR 9 Vicinity 
 WhatcomNorthwestSR 542 - Nooksack