Update 5/7/2024, 9:17 a.m.: “Beginning Wednesday, May 8, the northbound SR 529 Snohomish River Bridge will be reduced to one lane, 24 hours a day. All lanes will reopen Friday night, May, 10. On Monday, May 13, the 24-hour-a-day lane reduction resumes, until the full northbound bridge closure starts May 28,” according to the WSDOT website. For more information on I-5, see here:

Northbound I-5 in downtown Everett reduces to one lane all weekend starting Friday night

Beginning tomorrow, May 8, the northbound SR 529 Snohomish River Bridge will be reduced to one lane for repairs, among other expected closures going into Summer. The one-lane closure will turn into a four-month full closure at the end of the month. 

A map of SR 529 through Everett with orange lines marking construction zones on the northbound Snohomish River Bridge and both directions on the Steamboat Slough Bridge. Taken from the WSDOT website.

Why is this happening?

Northbound/Southbound Steamboat Slough Bridge and Northbound Snohomish River Bridge are in need of repairs.

“The purpose of this project is to preserve and protect the bridges from corrosion damage and ensure the movable spans function properly. Bridge preservation work includes bridge seismic retrofit, repairs and rehabilitation, steel bridge painting, concrete deck rehabilitation, scour mitigation, and bridge replacement. These programs combine cost-effective actions and strategies to maximize the useful life of bridges,” according to the Washington State Department of Transportation (WSDOT) website.

These projects are one in a series of projects to help preserve bridges along the SR 529 and I-5 corridor between Everett and Marysville.

What to expect:

The speed limit on southbound SR 529 near Marysville has been reduced to 25 mph from I-5 to the Steamboat Slough Bridge starting May 8. There is no safety threat according to WSDOT. Lowering the speed limit is a precaution to reduce vibrations and lessen wear on the bridge. According to WSDOT, after the plates are replaced, the temporary speed limit will end. There is no end date at this time.

There will be a four-month closure where both directions of traffic on the southbound Snohomish River Bridge will each have one lane open. The E Marine View Drive on-ramp to northbound SR 529 will also be closed during these four months. Traffic will be directed through local streets to get back on the northbound SR 529.

For information regarding later operations on Southbound SR 529 and Northbound/Southbound Steamboat Slough Bridge, see here: https://wsdot.wa.gov/construction-planning/search-projects/sr-529-snohomish-river-steamboat-slough-bridge-repair-rehab-paint