SR 18 - Eastbound Off-ramp to SR 164

Project News

  • The Muckleshoot Indian Tribe is leading this project to improve transportation on the SR 164 corridor from SR 18 to the Poplar Street curve, with the support of WSDOT and the city of Auburn.
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Needs & Benefits

The purpose of the project is to develop a cost-effective, long-term solution that improves congestion, increases safety, and accommodates growth.

  • Improves congestion: Reduces travel time, decreases queuing that blocks driveways and intersections, and improves reliability for emergency response for the section of SR 164 between SR 18 in Auburn and Dogwood Street Southeast on the Muckleshoot Indian Reservation. This segment has recurring congestion and traffic backups that extend through intersections. It will also help move people and goods more smoothly through the corridor.
  • Improves safety: Reducing congestion reduces the potential for collisions. The project will also look at options to improve safety for cars, trucks, buses, bikes and people of all abilities.
  • Accommodates growth: Allows for current and future land use in the urban growth areas of King County, Auburn, Enumclaw, and the Muckleshoot Indian Reservation.

SR 164/Auburn Way South provides primary access to the growing areas of east Auburn, and the Muckleshoot Indian Reservation, as well as Enumclaw and recreational areas to the southeast. 


  • July 17, 2018 - Open house at Muckleshoot Elders Complex
  • July 24, 2018 - Open house at Auburn Community and Events Center 
  • Summer 2018: Project will evaluate potential solutions.
  • Fall 2018: Identify a preferred solution and environmental review strategy.


This project received $15 million from the 2015 Connecting Washington transportation package.



A map showing the area that will be affected by the SR 18 east Auburn access.