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Find detailed reviews about specific areas of Washington’s transportation system in our collection of planning studies.

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34 results

US 195 North/I-90 Transportation Study

Timeline: Spring 2018 - Ongoing
  • In progress

Create a more resilient and connected network for local trips between Hatch Road and I 90.

Improve safety for all and preserve capacity on US 195 for regional trips.

Extend the life of the US 195/I-90 interchange.

Provide more connections for walking, biking, and using

US 2 - SR 204 - 20th Street SE Interchange Justification Report

Location: US 2, SR 204
Timeline: 2016 - 2019
  • Complete
  • Snohomish County

The population of Snohomish County has more than doubled since 1980 and is expected to gain another 200,000 residents by 2035. This growth will add pressure to the county’s high-traffic routes, including the US 2, SR 204 and 20th Street Southeast interchange, which already experiences severe

US 2 Westbound Trestle Study

Location: US 2
Timeline: 2019 - 2021
  • Complete
  • Snohomish County

The study helps identify transportation issues, environmental concerns, community values and economic goals early in project planning. A detailed environmental review process follows a PEL study, as required by the national and state environmental policy acts. Information gathered in the PEL

West Plains Subarea Transportation Management Plan Study, Phase 1, US 2 Vicinity

Location: US 2
Timeline: Fall 2019 - Ongoing study
  • In progress
  • Spokane County

The US 2 West Plains Sub-area Management Plan Phase 1, refines previous studies that have been completed in the West Plains area. This "live" study addresses the mobility gaps (congestion) that have already been identified along this 8-mile, east-west corridor between the US 2/ I-90 interchange

Zero emission electric vehicle registrations in Washington

increased 192% between 2017 and 2021.

45 projects to improve freight rail structures and freight movement

were underway as of December 31, 2021.

Washington state leveraged $100,000 to secure $27 million

in funding for airport investments in Fiscal Year 2022.