Ship Canal Bridge Project to Finish by October 30
The Washington State Department of Transportation will close I-5 northbound to finish preservation work.
Updated on Oct. 22, 2026 in Remote Work
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The Ship Canal Bridge preservation project in Seattle will reach completion over the weekend of October 30. WSDOT plans to clear the work zone by closing northbound I-5 from I-90 to Northeast 45th Street.
Why it matters
Completing this infrastructure maintenance two months ahead of schedule provides relief to drivers who have navigated lane and ramp closures for nearly a year. The work serves as a final step before the project site is fully reopened to the public.
The preservation project is finishing 2 months ahead of its original schedule. Maintenance crews are slated to return for southbound lane work in 2027.
The players
Washington State Department of Transportation
This government agency is responsible for the maintenance and operation of state highways and infrastructure projects like the Ship Canal Bridge.
The details
The upcoming weekend closure will allow crews to reconfigure lanes, remove pinned barriers, and restripe the road and shoulders. This final push concludes nearly one year of intermittent lane and ramp restrictions on the bridge.
Timeline
October 30, 2026: The project is expected to reach completion.
Late winter 2027: Work on southbound bridge lanes is scheduled to begin.
Market Landscape
This project fits into the ongoing regional strategy to modernize I-5 and reduce long-term traffic congestion on one of Washington's most vital transit corridors. By completing the northbound work early, state agencies can better align resources for the upcoming southbound maintenance cycle.
Drivers using the I-5 corridor should prepare for a full closure between I-90 and Northeast 45th Street over the weekend of October 30 to accommodate work zone removal. Motorists can expect improved traffic flow once the lane configurations and restriping are finalized.
The takeaway
The successful early completion of this project highlights the importance of weather-dependent planning in infrastructure maintenance. Seattle commuters can look forward to a brief period of open lanes before crews return for the next phase of work in 2027.
Further reading
For more information on infrastructure impacts affecting the city, see Seattle Remote Work.
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Do you feel local bridge and highway maintenance projects are making your commute more reliable?
