• Project

SR 9/South Lake Stevens Road – Intersection Improvements

SR 9 between 32nd Street Southeast and 20th Street Southeast will close for both directions beginning at 11 p.m. Friday, May 20 until 4 a.m. Monday, May 23.

Project overview

In Feb. 2022, Interwest Construction Inc., contractor crews working for WSDOT, will construct a roundabout at the intersection of SR 9 and South Lake Stevens Road to improve safety and mobility. Crews will also improve fish habitat by replacing the existing culvert under South Lake Stevens Road east of SR 9. There will be a creation of a new street, 24th Street Southeast, to be built by Costco. This new street will connect the remaining portion of South Lake Stevens Road to the west side of SR 9, via the new roundabout.

Timeline
February 2022 - fall 2022
Project status
Construction
Funding
$8.8 Million

What to expect

A second full weekend closure of SR 9 between 32nd Street Southeast and 20th Street Southeast begins at 11 p.m. Friday, May 20 until 4 a.m. Monday, May 23. Crews will shift SR 9 traffic from the eastern portion of the roadway to the western portion. Signed detours will be in place and detour maps are available under the "maps and drawings" tab of this webpage. While lane configuration will remain the same after the closure and shift, drivers should use caution while adjusting to being on the western portion of the road.

The westside leg of South Lake Stevens Road, where it meets SR 9, remains closed for the duration of this project. The detour is 91st Avenue Southeast and 32nd Street Southeast

Replacing the existing culvert on the east side of SR 9. This part of the project will begin after July 5 due to the Washington State Department of Fish and Wildlife fish window for in-water construction.

  • South Lake Stevens Road just east of SR 9 will be closed for a continuous 12-week window.
  • Detour: 99th Avenue Southeast/20th Street Southeast

Periodic full weekend closures of SR 9 between 32nd Street Southeast and 20th Street Southeast, including the East and West legs of South Lake Stevens Road.

Map showing the primary work area where crews will construct a new roundabout at the intersection of SR 9 and South Lake Stevens Road.