Five-day closure of SR 9 in Snohomish to build roundabout begins Aug. 16

Southbound SR 9 will be open for parts of the closure; work is weather-dependent.

SNOHOMISH – Residents and travelers in the Snohomish area will need to prepare for an around-the-clock closure of State Route 9 beginning at 8 p.m., Tuesday, Aug. 16 to 5 a.m., Monday, Aug. 22.

Granite Construction Company contractor crews, working for the Washington State Department of Transportation, will intermittently close SR 9 between Second and 30th streets to build a new roundabout at the intersection of SR 9 and Bickford Avenue/Avenue D.

While northbound SR 9 will remain closed for the full five days, southbound SR 9 will be open between 5 a.m. and 8 p.m. daily Aug. 17-19. Both directions of the highway will fully close from 8 p.m. Friday, Aug. 19 to 5 a.m. Monday, Aug. 22. The work is weather dependent.

Signed detours will be in place. Through traffic will utilize US 2 to get around the closure, while local traffic detours are:

  • Southbound traffic: 30th Street to Bickford Avenue continue to Avenue D to Second Street to access southbound SR 9.
  • Northbound traffic: Marsh Road to Airport Way continue to Avenue D to Bickford Avenue to 30th Street to access northbound SR 9.

What drivers can expect

Following this five-day closure, drivers using SR 9 between Second and 30th streets will be able to use the new roundabout at the intersection of SR 9 and Bickford Avenue/Avenue D. Though work will continue in the area, the roundabout will be mostly complete, and drivers will be using the new configuration.

Stay up to date

People should use caution while driving through the area and visit the project webpage for updates and follow on social media. People who are traveling can get real-time traffic information on mobile phones with the WSDOT traffic app.

8,683 animals crossed the Snoqualmie Pass East Project area

as recorded by WSDOT and partners in 2020 and 2021.

46% increase in Amtrak Cascades ridership to 251,000 passengers

in 2021 compared to 172,000 in 2020.

Nine wetland and stream mitigation sites across 32.7 acres added

to our monitoring program in 2021 to help offset climate change impacts.