WSDOT opens public input for Cascadia high-speed rail research

The 377-Mile Corridor Facing a Crossroads

The Washington State Department of Transportation is in the early stages of a project that could fundamentally reshape travel in the Pacific Northwest. As the agency moves forward with its research into a high-speed rail system connecting Vancouver, BC, to Portland, Oregon, it has opened a window for public input that closes on November 13. This initiative, known as the Cascadia High-Speed Rail, envisions a 377-mile corridor designed to stitch together the region’s primary metro hubs—Vancouver, Seattle, and Portland—into a single, high-speed transit network.

The urgency behind this planning effort is rooted in aggressive demographic and traffic projections. WSDOT reports that the “megaregion” is expected to add 3.4 million residents by 2050. Without structural changes to the transportation grid, the agency anticipates that 80% of interstate traffic in Washington will hit medium or high congestion levels, while Oregon’s portion of I-5 is projected to face severe congestion across 78% of its length by 2045. As reported, the current Amtrak Cascades service, which moves at about 79 mph, can serve communities up and down the corridor for shorter point-to-point trips, while longer haul trips can be served by high-speed rail.

Targeting Speeds up to 220 Mph for Shorter Travel Times

At the heart of this proposal is the transition from conventional rail to true high-speed infrastructure. Ben Tripousis, the program administrator of the Cascadia High Speed Rail & I-5 Program, brings experience from California’s High Speed Rail Authority. Under his guidance, WSDOT is exploring speeds between 160 mph and 220 mph. For a traveler moving between Seattle and Portland, this jump in technology could reduce a three-hour commute to just over one hour.

The current research phase is supported by a $49.7 million grant from the Federal Rail Association and a $5.5 million match from the Washington state legislature. These funds are earmarked for the completion of a Service Development Plan—a critical document that will determine whether high-speed rail is a viable, long-term transportation option for the region. You can find more details on the planning process and access the public survey here.

Economic Stakes and Regional Connectivity

For residents like Joletta Lorio, who commutes from the Washington-Oregon border to Seattle, the potential impact is tangible. A rail system capable of high-speed travel would transform a three-hour transit block into a productive window for professional tasks. Beyond the daily grind, the project aims to integrate the region’s major airports, PDX and SEA, directly into the high-speed network.

The proposal also carries a broader cultural promise. Kendall Uyeji, a resident of Shoreline, noted that such a system would keep up with Europe and China. For many, the appeal lies in the ability to move freely between cities for leisure—catching a show in Portland or dining in Vancouver—without the time commitment currently required by regional highway traffic.

“Creating other options for people to travel from point to point between those cities gives us a chance to get people off the freeway,” said Ben Tripousis, the program administrator of the Cascadia High Speed Rail & I-5 Program.

Completing the Service Development Plan by 2028

While the prospect of a one-hour trip between major hubs is compelling, the timeline remains lengthy. The Service Development Plan is slated for completion in 2028. Following that milestone, the project will enter the environmental and planning phase, a process that Tripousis estimates could take another three to five years depending on the challenges that you run into through the process.

WSDOT has signaled that it intends to explore a complex funding mix, looking toward British Columbia, Oregon, the FRA, and private investment to make the project viable. For now, the agency is focused on gathering public data to inform its next steps, leaving the future of the Cascadia corridor to be defined by the results of this initial planning phase.