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SR 167 Master Plan

Planning study news

The SR 167 Master Plan Planning and Environmental Study, executive summary and appendices are now available.

The SR 167 Master Plan started in earnest in fall 2021 and we completed the SR 167 Master Plan update in June 2023.
In 2021, the Legislature reauthorized $3 million for the SR 167 Master Plan update.


The Puget Sound region is thriving and attracting large population and employment growth. This growth increases strain on our transportation infrastructure and services, resulting in increased traffic congestion and increased needs for maintenance and preservation. There is a need to move people and goods by maximizing the effectiveness of our multimodal transportation system now and into the future. 

In response to this need, the Washington Legislature passed Engrossed Substitute Senate Bill 5825, directing $3 million to develop a multimodal SR 167 Master Plan. As part of the SR 167 Master Plan effort, WSDOT analyzed existing and future conditions, incorporated information from public and stakeholder engagement, and identified near, medium, and long-term multimodal transportation needs and strategies along the SR 167 corridor.

The SR 167 Master Plan study area included the existing SR 167 facility from the Port of Tacoma (SR 509) to Renton. WSDOT also considered the local system, and worked with other transportation providers to fully understand needs and solutions in the corridor.

Planning study report

This map shows the SR 167 Master Plan study area.