Project Facts
- Snohomish County is improving two intersections in a one-mile section of SR 9 between South Lake Stevens Road and 20th Street SE.
- We are widening SR 9 from two to four lanes between South Lake Stevens Road and 20th Street SE.
- WSDOT is also improving SR 9 near Arlington and south of Snohomish.
Snohomish County Public Works will reduce congestion and improve travel time in the Lake Stevens area with a project to improve the 20th Street SE corridor. As part of the project, WSDOT is providing funding to improve safety and reduce congestion on State Route 9 between South Lake Stevens Road and 20th Street SE.
Crews will add one lane in each direction and add turn lanes at two intersections. They will also improve lighting along the corridor, upgrade the traffic signal at one intersection, and replace a bridge to accommodate the wider roadway.
Why is WSDOT
providing funding to improve this section of SR 9?
SR 9 is the only north-south alternative to I-5 through Snohomish County. There are many busy intersections along this road that cause congestion when left- and right-turning drivers stop the flow of traffic on SR 9. Cars waiting to turn left or right also increase the risk of rear-end collisions, making this an increasingly dangerous streatch of road.
Snohomish County Public Works will:
- Widen SR 9 from South Lake Stevens Road to 20th Street from two lanes to four.
- Install raised traffic islands in both directions at the intersections of SR 9 and South Lake Stevens Road to prevent head-on collisions.
- Widen and extend the left turn lanes at the intersection of northbound and southbound SR 9 and 20th Street.
- Add right-turn lanes in both directions on SR 9 at 20th Street.
- Improve lighting on SR 9 from Lake Stevens Road to 20th Street, and a new traffic signal on SR 9 at 20th Street.
- Replace the bridge south of the SR 9 and 20th St. SE intersection to accommodate the additional lanes.
- Install drainage ditches and a stormwater treatment pond beneath the bridge to collect and treat stormwater runoff from the roadway before it enters Centennial Creek.
The End Result
Crews will widen SR 9 and provide right-turning vehicles with their own lane at 20th Street SE and left-turning vehicles with a double left-turn lane between S Lake Stevens Road and 20th Street SE. In addition, they will replace the current bridge over Centennial Creek with a new, wider bridge to accommodate the wider roadway.
Project Benefits
- Safety: New turn lanes and upgraded lighting will reduce the risk of collisions.
- Reduced congestion: Adding an additional lane in each direction will double the capacity of the road.
- Environment: Crews will improve the drainage system and install energy efficient lighting as a part of the improvements.
What is the project timeline?
July 2008 - Construction begins
Summer 2011 - Construction complete
Public Involvement
Your thoughts and opinions are important to us. Please contact Tina Hokansen, Snohomish County Public Works, or Patrick Conrad, WSDOT communications, if you have questions or concerns.
Environmental Protection
Drainage features in this project such as culverts and ditches will be upgraded or replaced to help prevent erosion in large storm events. Retention ponds and other storm water treatment devices will be constructed as needed to treat runoff. We will relocate approximately 600 feet of Centennial Creek to build and install drainage ditches.
We make every effort to assess and minimize environmental impacts from our projects. During the project design phase we will work to reduce the impacts to wetlands, creeks and streams in the project area.
Please visit the WSDOT Environmental
Services Web site for more information.
Increasing safety is one of our priorities
New left- and right-turn lanes will provide motorists their own lane to move out of the path of vehicles traveling straight through the intersection. This will help reduce rear-end and sideswipe collisions.
Will this project impact tribal resources?
At WSDOT we seek to address the concerns of the tribal nations using the process outlined in Section 106 of The National Historic Preservation Act and the WSDOT Tribal Consultation Policy adopted in 2003 by the Transportation Commission as part of the WSDOT Centennial Accord Plan.
To learn more about Section 106 Tribal Consultation (also called government-to-government tribal consultation process) please visit WSDOT's Tribal Liaison page, where you'll find the WSDOT Centennial Accord Plan and WSDOT's Tribal Consultation Policy (Adopted by the Transportation Commission on February 19, 2003).
Financial Information
2005 Gas Tax (Partnership Funding) - $12 million
Total Funding Available from All Sources - $12 million
How can I get more information?
Contact:
Snohomish County Public Works Tina Hokansen
Phone: 425.388.3789
E-mail: Tina.Hokanson@snoco.org
WSDOT Communications Patrick Conrad
Phone: 206-440-4473
E-mail: conradp@wsdot.wa.gov
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