Thanks to a bridge safety alarm system, our bridge operators discovered a hydraulic fluid leak on the Spokane St Swing Bridge (aka West Seattle Low-Level Bridge). To protect the safety of travelers and mitigate potentially costly cumulative damages, we will be conducting an emergency inspection and repairs starting at 8 PM tonight, 6/20/18. The bridge will swing out of commission for a week or more and will be closed to vehicle traffic but open to marine vessels.
The leak is in one of the cylinder seals, shown above. To determine the extent of the damage, the bridge must be swung out in its open position and remain there during inspection and repairs.
What you can expect:
Our team is currently placing portable message signs on S Spokane St, east of E Marginal, facing WB traffic; the message to vehicle drivers:
“SPOKANE | BRIDGE | CLOSED
WEST OF | HARBOR | ISLAND”
Vehicle Detour Routes will begin at 8 PM and be clearly marked at the following locations:
- Chelan Ave SW
- 1st Ave S
- E Marginal
✔ Bike Riders:
For tonight only, we are providing van service for bike riders. Van service will stage at the approaches to and from Spokane St Swing Bridge. 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 (update) Highland Park Way SW, just past SW Michigan St.
Our Bridges & Roadway Structures crews staff the City’s moving bridges 24/7. Bridge Operations and Maintenance Manager, Paul Jackson, said a leak unnoticed could cause increasing and eventually severe structural damage.
“Our bridge tenders don’t just sit in a tower—they inspect everything closely—over, and over again. I’m proud of them, though we all realize the repair work will cause significant traffic delays, we’re happy to have found the problem while it may still be small.” – Paul Jackson
It’s hoped the repair will be complete by the middle of next week, but that cannot be confirmed until the cylinder is opened and more thoroughly investigated for damage.
Have a question or want more information? Visit our Bridges page or contact our Bridges and Roadway Structures manager, Paul Jackson, by email at firstname.lastname@example.org or phone 206.684.8325.
Thanks for your patience while we conduct the emergency inspection and repairs!