SR 9 - SR 204 Intersection Improvements - Stage two

The State Route 9 - 204 Intersection Improvements project is now in stage two, with construction beginning on June 14. Marshbank Construction Inc., contractor crews working for the Washington State Department of Transportation, will:

  • Extend a second northbound lane on SR 9 from south of Market Place to Fourth Street Northeast, where it will join up with the existing second northbound lane
  • Make it easier for drivers to turn on and off SR 9 by adding right turn pockets from SR 9 northbound to Fourth Street Northeast, from SR 9 southbound to Market Place, and from Market Place westbound to SR 9 northbound
  • Build noise walls and add 500 trees to the area to reduce highway sounds to homeowners and businesses on both sides of SR 9

A map showing the location of a second northbound lane and three new right turn pockets on SR 9.

Stage two continues the work to improve traffic flow at the SR 9 - SR 204 intersection and surrounding area in Lake Stevens. Extending a second northbound lane and building additional right turn pockets will contribute to mobility and safety improvements.

What to expect

Construction on the second northbound lane extension and right turn pockets will occur between June 14 and late October. Noise wall installation and landscaping work is expected to begin in March 2022.

Except for some weekday daytime SR 9 shoulder closures, all closures will occur on weeknights between 9 p.m. and 5 a.m. From June to October, travelers in the Lake Stevens area can expect:

  • Partial and full closures of Market Place at the intersection with SR 9 (detour maps are below)
  • SR 9 reduced to one lane with alternating northbound and southbound traffic between Market Place and SR 204
  • Lane closures in both directions of SR 9
  • Single lane closures on SR 204 just before intersection with SR 9

Travelers can use the WSDOT app and travel alerts page to track specific closures and plan their trip before they go. For regular updates about the project, subscribe to the WSDOT Snohomish County newsletter and follow @WSDOT_Traffic on Twitter.

Upcoming closures

During the first two weeks of construction, contractor crews will complete daytime work that requires shoulder closures on SR 9. Following the start of construction on June 14, portions of SR 9 shoulders in both directions will be closed at all times to make construction set-up more efficient.

The first overnight closures are scheduled to begin on Monday, June 28. 

Eastbound detour map

A map showing eastbound detour routes for Market Place closures.

On weeknights between 9 p.m. and 5 a.m. when Market Place is closed at the intersection with SR 9, eastbound travelers can use these detour routes:

  • Turn left on 91st Ave Southeast, turn right on SR 204, turn right on 92nd Avenue Northeast, turn left on 4th Street Northeast, turn right on 99th Avenue Southeast, and turn left on Chapel Hill Road.
  • Turn right on 91st Avenue Southeast, turn left on 4th Street Southeast, and turn right on SR 9.

Westbound detour map

A map showing westbound detour routes for Market Place closures.

On weeknights between 9 p.m. and 5 a.m. when Market Place is closed at the intersection with SR 9, westbound travelers can use these detour routes:

  • Turn right on 99th Avenue Southeast, turn left on 4th Street Northeast, turn right on SR 9, turn left on SR 204, and turn right on Market Place.
  • Turn left on 99th Avenue Southeast, turn right on 4th Street Southeast, and turn left on SR 9.