SR 18 - Eastbound Off-Ramp to SR 164 Improvement

Project News

  • This project is being managed by the Muckleshoot Indian Tribe, with the support of WSDOT.
  • There will be two open houses for this project later this summer. Dates will be announced when selected.
  • Sign up to receive email updates about this project.

Needs and Benefits
State Route 164 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. The purpose of the project is to develop an affordable, long-term solution that:

  • 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.

What can people expect?
The SR 18 – Eastbound off-ramp to SR 164 Improvement project is just beginning and we are collecting input about the community’s potential concerns and challenges with this proposed improvement.

Project Timeline

  • June 2018: Project will hold two public open houses.
  • 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.