Update: W Seattle Lower Bridge

Bike Shuttle Service Extended

Inspections are underway following last night’s emergency low-level West Seattle Bridge “closure” – essentially a forced extended opening to enable inspection and repairs. With bicyclists impacted significantly, to reach alternative routes over the Duwamish River, we will continue van service for bicycle commuters and evaluate use throughout the week.

  • Shuttles for bicyclists operating during heavy commute hours: 6 to 10 AM and 3 to 7PM .

More details to come, on bridge damage associated with hydraulic fluid leakage. The leak is inside a machine room that holds the huge cylinders which turn the bridge sections in for roadway traffic and out for marine traffic.


What you can expect:

 Detour Routes:

Portable message signs are placed on S Spokane St, east of E Marginal, facing WB traffic; the message to vehicle drivers:



Vehicle Detour Routes began at 8 PM, June 20, with signage at the following locations:

  • Chelan Ave SW
  • 1st Ave S
  • E Marginal
  • Harbor


 Bike Riders:

Van service for bike riders continues! Shuttle vans are staging at the approaches to and from Spokane St Swing Bridge. Shuttles for bicyclists will run during heavy commute hours: 6 to 10 AM and 3 to 7PM. Cyclist shuttle use will be evaluated throughout the week.  For those riding around the Duwamish:


From West Seattle:

  • Detour signs are placed at the West Seattle Bridge Trail, to head south along West Marginal Way; crossing SW Michigan St onto 1st Ave S.

From SODO:

  • Detour signs are placed along 1st Ave S to continue south, to Highland Park Way SW, just past SW Michigan St.


Our Seattle Bike Map shows commonly advised bicycle travel paths, though this map does not carry construction impact information; however, bike detour maps will be posted asap. Stay tuned!


Contact us!

Have a question or want more information? Visit our Bridges page or contact our Bridges and Roadway Structures manager, Paul Jackson, by email at paul.jackson@seattle.gov or phone 206.684.8325.


Thanks for your patience while we conduct emergency inspections and repairs!