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Spokane Street Swing Bridge (Low Bridge) Update

Keep up to date with the ongoing work on the Low Bridge



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*Spokane St Swing Bridge (low bridge) closed tomorrow through June 8 to people driving, walking, rolling, and biking* 

*Summary:*

* The Spokane St Swing Bridge (as known as the West Seattle Low Bridge) will be closed to everyone this weekend starting at 7 am on Saturday, June 7.
* We will be re-installing a newly repaired hydraulic cylinder which helps turn the 14-million pound bridge so it can be opened and closed for passing ships. This work is necessary to help prevent future unexpected bridge closures due to mechanical issues.
* This closure will affect all land travel. We will do our best to complete the work as quickly as possible and appreciate your patience. We expect to reopen the bridge at 10pm on Sunday, June 8.
* How to get around during the closure:  

*
* Riding the bus [ #ridethebus ]
* Riding the Water Taxi [ #ridewatertaxi ]
* Driving or carpooling on the West Seattle Bridge (high bridge) [ #driveorcarpool ]
* Walking, biking, or rolling [ #walkbike ]
* Freight and business access to Harbor Island and Terminal 5 [ #freight ]

*Background* 


* The Spokane St Swing Bridge, commonly known as the low bridge, was built in 1991 and serves as a crucial link across the West Duwamish Waterway. Planning, design, and construction for the initial phase of the Spokane St Swing Bridge Rehabilitation Program [ https://lnks.gd/l/eyJhbGciOiJIUzI1NiJ9.eyJidWxsZXRpbl9saW5rX2lkIjoxMDEsInVyaSI6ImJwMjpjbGljayIsImJ1bGxldGluX2lkIjoiMjAyMjEyMjkuNjkwMDAxMTEiLCJ1cmwiOiJodHRwczovL3d3dy5zZWF0dGxlLmdvdi90cmFuc3BvcnRhdGlvbi9wcm9qZWN0cy1hbmQtcHJvZ3JhbXMvcHJvZ3JhbXMvYnJpZGdlcy1zdGFpcnMtYW5kLW90aGVyLXN0cnVjdHVyZXMvYnJpZGdlcy93ZXN0LXNlYXR0bGUtYnJpZGdlLXByb2dyYW0vc3Bva2FuZS1zdC1zd2luZy1icmlkZ2UtaW1wcm92ZW1lbnQtcHJvamVjdHM_dXRtX21lZGl1bT1lbWFpbCZ1dG1fc291cmNlPWdvdmRlbGl2ZXJ5In0.VjuJaOrpJCslE9CQkalI0CvQyVbI9SQRmp6ZhGWbVdQ/s/1812472307/br/151486445825-l?utm_medium=email&utm_source=govdelivery ] took place from 2020 to 2022. 

* Over the past few years we have been working to repair and replace several of the hydraulic cylinders which move the bridge. This weekend we will reinstall the last of these cylinders which needed to be repaired. 

* We know how important this bridge is for travelers. We have found innovative solutions to complete other recent repairs without closing the bike lane or vehicle lanes, but unfortunately that was not possible this time.   

* SDOT also completed a bridge strengthening project in 2022, earthquake safety project in 2024, and upgrades to the bridge control and communications system in 2024. 

* Work on this project is expected to continue throughout 2025. There may still be bridge closures in the future as we continue to work to repair and update other elements of the bridge’s mechanical and computer system. 
The bridge span is opened and closed by turn cylinders that push and pull on the lift cylinder

"The bridge span is opened and closed by turn cylinders that push and pull on the lift cylinder."

Here are some options to get around during the closure:

*Riding the bus*

The bus provides a reliable option to get to many destinations on both sides of the Duwamish Waterway without driving. Buses travel via the high bridge and can be used by people walking, riding conventional bikes, and in wheelchairs.

We encourage you to visit King County Metro’s trip planner page [ https://lnks.gd/l/eyJhbGciOiJIUzI1NiJ9.eyJidWxsZXRpbl9saW5rX2lkIjoxMDIsInVyaSI6ImJwMjpjbGljayIsImJ1bGxldGluX2lkIjoiMjAyMjEyMzAuNjkwMjg3NTEiLCJ1cmwiOiJodHRwczovL3RyaXBwbGFubmVyLmtpbmdjb3VudHkuZ292Lz91dG1fbWVkaXVtPWVtYWlsJnV0bV9zb3VyY2U9Z292ZGVsaXZlcnkjL2FwcC90cmlwcGxhbm5pbmcifQ.RF3iiKPZSYAXgHgO6TbP6YxJkjEJeNOSIWzDTCtlEhQ/s/1812472307/br/151499749620-l?utm_medium=email&utm_source=govdelivery ] to find the latest bus route and schedule information for your trip.

*Riding the Water Taxi*

King County operates the West Seattle Water Taxi [ https://lnks.gd/l/eyJhbGciOiJIUzI1NiJ9.eyJidWxsZXRpbl9saW5rX2lkIjoxMDMsInVyaSI6ImJwMjpjbGljayIsImJ1bGxldGluX2lkIjoiMjAyMjEyMzAuNjkwMjg3NTEiLCJ1cmwiOiJodHRwczovL2tpbmdjb3VudHkuZ292L2RlcHRzL3RyYW5zcG9ydGF0aW9uL3dhdGVyLXRheGkvd2VzdC1zZWF0dGxlLmFzcHg_dXRtX21lZGl1bT1lbWFpbCZ1dG1fc291cmNlPWdvdmRlbGl2ZXJ5In0.Ei8Nmw6hc5HHFdnaHS160xuoVy2kZiEuVtZL67pRF10/s/1812472307/br/151499749620-l?utm_medium=email&utm_source=govdelivery ], which provides direct service from West Seattle to downtown Seattle, with full service 7 days per week through the winter, except for select holidays. Their large vessels can store up to 26 bikes at a time.

*Driving or carpooling on the West Seattle Bridge (high bridge)*

The high bridge remains open to drivers and offers a direct connection for many travelers to reach their destinations. There are currently no restrictions on vehicle access. This bridge is not accessible to pedestrians or people biking. Signs are posted in various locations stating this.

*Walking, biking, and rolling*

People walking, biking, and rolling will not be able to use the low bridge to cross the Duwamish Waterway during the closure. There are several other routes to get around the closure by bike, including West Marginal Way SW [ https://us-west-2.protection.sophos.com/?d=lnks.gd&h=854c6c6a07f147cd8468bcab9d084598&i=NjVlMjQ4NzM0ODMzNjA1ZjY4NzdkMzdk&p=m&s=AVNPUEhUT0NFTkNSWVBUSVaiFoiqX5ybopHZjcODhPKpKhzdcYuPHKZYQTaBKC_ith3rU1j7drIM3RRO4coWMP8&t=MCtvWG9FM3k5R2tKQkl4UEZXOXZZNkVEUEFWZ0JuaHhLQXFIV2d1RDYvUT0%3D&u=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%3D%3D&utm_medium=email&utm_source=govdelivery ] where we recently added permanent safety barriers to the protected bike lane. Check out our Bike Map [ https://experience.arcgis.com/experience/ee5b243b03e24a0691b4f7336ada2b2f?utm_medium=email&utm_source=govdelivery ] to see where there are bike facilities. Transit is another reliable option for people walking and rolling to use during the closure.

*Freight and business access to Harbor Island and Terminal 5*

Truck drivers, Port workers, and other people who need to access Harbor Island and Terminal 5 are still able to do so, though they need to be aware of the detour route before making their trip. Access to Harbor Island remains available from the east via SW Spokane St, before reaching the Spokane St Swing Bridge, as shown in the map below. For those traveling to Terminal 5 from the east, please use alternate routes, such as the West Seattle high bridge.

Spokane St Swing Bridge #1 Detour Map

"The map above shows different routes to enter Harbor Island and Terminal 5 during the low bridge closure."

Spokane St Swing Bridge Detour Map #2

"The map above shows different routes to exit Harbor Island and Terminal 5 during the low bridge closure."

We appreciate your patience as we complete this critical work to keep the bridge reliably operating today and in the future. To stay informed about the project, sign up [ https://public.govdelivery.com/accounts/WASEATTLE/subscriber/new?topic_id=WASEATTLE_485 ] to receive project updates.  

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*What’s Next*

We will keep fixing another part of the bridge early in 2025 to make sure it keeps working well. Over the next year, additional short-term closures will be required as part of our ongoing preventative maintenance work on this bridge. That means that in the future, the low bridge will be closed again to people walking, biking, rolling, and driving. 






*Seattle Department of Transportation*

700 5th Avenue

Suite 3800

Seattle, WA 98104

*Phone: 206-684-7623*

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