- Between 2005 and 2013, we will spend more than $287 million on SR 9 improvement projects in Snohomish County.
- For more information, we have an SR 9 corridor project folio (pdf 1.4 mb) a recent SR 9 Safety Study (pdf 1mb).
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Washington State Route 9 begins at SR 522, north of Bothell, and parallels Interstate 5 going north to the Canadian border at Sumas. SR 9 serves Snohomish, Skagit and Whatcom counties.
Snohomish County has grown by more than 37 percent since 1990. This influx of people has greatly increased congestion, wear and tear and collisions on this busy stretch of roadway between Clearview to Arlington.
By widening sections of SR 9 and its key intersections, we will relieve traffic congestion, improve traffic flow and reduce accidents.
How will we address long-term solutions on SR 9?
More than 10 projects are in progress or will be undertaken through 2012 to improve the SR 9 corridor. We will add new through lanes, turn lanes and traffic signals at seven key intersections along SR 9. We will also widen several sections of SR 9.
- 108th Street NE (Lauck Road) -- intersection improvement
- 212th SE to 176th SE -- highway widening
- 176th Street SE to Marsh Road -- highway widening, intersection improvements
- Nooksack Road Vicinity to Cherry Street -- highway realignment
- Scholman Road to 268th Street NE -- highway straightening and intersection improvements
- SR 522 to 212th Street SE (Maltby Rd.) -- highway widening
- Eaglefield Drive Vicinity -- paving
The End Result: Reduced Congestion and Improved Safety
These projects will bring heavily used parts of the highway up to the most current safety standards for intersections, guardrails, pavement markings and reduced roadside hazards.
These improvements will relieve congestion and improve traffic flow and safety on this busy route. New left-turn lanes will reduce rear-end and sideswipe collisions by giving left-turning motorists their own lane, removing them from the path of through traffic.
We will upgrade culverts and ditches to help minimize erosion during large storms. We will also build stormwater detention ponds where needed. Retention ponds and other storm water treatment devices will be constructed as needed to treat runoff.
In our continuing efforts to protect the environment, the WSDOT team will work with surrounding cities and communities to protect, and in some cases better, wetlands and streams in the area.
Please visit the WSDOT Environmental Services Web site for more information.
Current SR 9 improvement projects underway include: