Find detailed reviews about specific areas of Washington’s transportation system in our collection of planning studies.
The Tacoma to Puyallup Regional Trail will connect downtown Puyallup to Fife and downtown Tacoma, providing people who live and work in the area with a new option to travel without a motorized vehicle to a variety of destinations. Through this study, WSDOT will complete preliminary trail design
At the request of the Washington State Legislature, WSDOT prepared toll feasibility studies for SR 167 and SR 509 to examine tolling and construction options for the new SR 167 and SR 509 corridors. The studies provided insights into:
- Potential funding and corresponding financial
WSDOT is studying how ultra-high-speed ground transportation (UHSGT) might serve as a catalyst to transform the Pacific Northwest. A stronger, better connected economic megaregion — stretching from greater Vancouver, British Columbia to metro Seattle, Washington to Portland, Oregon — has the
US 101 connects Sequim, a city in Clallam County, with the rest of western Washington. It is a vital link for residents, businesses and visitors. The pre-design study identified roadway improvements focused on safety, access and improving travel times using the
The US 195 Corridor Crash Analysis is a traffic safety study that focuses on:
- Identifying the most common circumstances or trends that contribute to serious and fatal injury crashes along the corridor.
- Identifying low-cost solutions or countermeasures most likely to reduce
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
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
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
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