I-5 System Partnership

The I-5 System Partnership is a stakeholder group made up of representatives from transportation agencies, community organizations, the business community, and jurisdictions throughout the 107-mile study area from Tumwater to Arlington.

The I-5 System Partnership views Interstate 5 as the spine of a complex system that includes local streets, highways, transit, freight and emergency response. There’s agreement by the stakeholders that:

  • The I-5 system is broken.
  • Waiting to fix it will only cost us all more.
  • We have to work together now to make lasting change.

The I-5 System Partnership worked collaboratively throughout 2018 and 2019  to review the pressing challenges of the I-5 system and establish a set of goals and strategies for the future of the system. The Partnership recommends development of an I-5 System Master Plan that identifies specific improvements that should be made to each part of the I-5 system.

Working toward a set of clear goals will position the I-5 system to support future generations and help meet the challenges of future growth in a way that protects our economy, environment and communities. The Partnership’s goals and strategies are consistent with adopted regional visions of the Puget Sound Regional Council (PSRC) and the Thurston Regional Planning Council (TRPC).

View the I-5 System Partnership Call to Action (pdf, 12.8 mb)

Latest Updates

On July 15, 2019, WSDOT applied for a US Department of Transportation Better Utilizing Investments to Leverage Development (BUILD) grant jointly with the City of Seattle to advance the work of the I-5 System Partnership. The joint grant application, titled "Partnering for the Future of I-5," and associated appendices are below: 

Additional Resources