Highway specific studies

• Westbound US 2 Trestle Replacement Study (pdf 11 mb)
• SR 20 Swantown Road to Cabot Drive Corridor Pre-Design Analysis, 2005 (pdf 2.4 mb)
• US 2: Everett Port/Naval Station to SR 9 Corridor Planning Study, 2016 (pdf 9 mb)
• US 2: Lincoln County Line to I-90 Route Development Plan (pdf 16.7 mb)
• US 2 Corridor Study Deer Road to Elk-Chattaroy Road, 2015 (pdf 36.6 mb)
• US 12: Heron Street Bridge
• I-5: Tacoma Mall Boulevard Access Study
• I-5: Tumwater to Mounts Road Corridor Study
• I-90 Speed Limit, 2016
• US 195 Corridor Crash Analysis, 2016 (pdf 10.5 mb)
• SR 20 Swantown Road to Barrington Drive Briefing Paper, 2012 (pdf 82 kb)
• HOV Feasibility Study for I-5: JBLM to S 38th Street (pdf 1.3 mb)
• US 2 - SR 204 - 20th Street SE Interchange Justification Report
• ​SR 16 – Tacoma Narrows Bridge to SR 3 Congestion Study
• I-90 - Four Lakes to Idaho - Operational Study
• I-90/Front Street Interchange Justification Report
• SR 160 Long Lake Rd SE Planning Study
• SR 161 - 31st Ave SW Overcrossing - Widening Study
• SR 162 - Sumner to Orting Corridor Planning Study
• SR 302 - Elgin Clifton Rd. to SR 16 Corridor Planning Study
• US 395 - Deer Park Intersection Improvement Study
• SR 410 / 234th Avenue to Garrett Street Corridor Study
• SR 500 42nd Ave - 54th Ave Safety Improvements Study
• SR 542 Mt. Baker Highway Scenic Byway Management Plan, 2009 (pdf 3.7 mb)

Other current and long range studies and plans

• Corridor Sketch Initiative
• Highway System Plan (Update)
• Lynnwood Transit Center Multimodal Accessibility Plan Final Report, 2016 (pdf 8.7 mb) and Appendices (pdf 2.3 mb)
• Sustainable Transportation Action Plan, 2015-2017 (pdf 222 kb)
• Statewide Human Services Transportation Plan, 2014 (pdf 1.7 mb)
• Statewide Transportation Improvement Program (STIP), 2018-2021
• Target Zero: Strategic Highway Safety Plan, 2016 (pdf 12.8 mb)
• Washington Transportation Plan / Long-Range Statewide Transportation Plan, 2007-2026 (pdf 7.6 mb)
• Washington Transportation Plan, Phase 2 - Implementation (Long-Range Transportation Plan Update)

Modal plans

• Aviation System Plan
• Bicycle Transportation and Pedestrian Walkways Plan
• Ferry Long Range Plan
• Highway System Plan 2007-2026 (pdf 20 mb), Technical Update 2007-2026 (pdf 1.8 mb), and Appendices (pdf 4.7 mb)
• State Freight Mobility Plan (pdf 5.7 mb) 
• State Rail Plan
• Statewide Public Transportation Plan, 2016 (pdf 5.2 mb)
• Ultra-High-Speed Ground Transportation study

Guidance documents

• Community Engagement Plan, 2016 (pdf 2.4 mb)
• Guidance for Considering Impacts of Climate Change in WSDOT Plans (pdf 606 kb)
• Safety Guidance for Corridor Planning Studies (pdf 284 kb)

Contact

Candice Tobin
360-705-7998