Update 4: W Seattle Bridge

Back-up piston assembly on site | June 22, 2018



Primed & Ready

Today crews primed the replacement parts that will help get the W Seattle Lower Bridge back in service. The huge piston also had to be rotated to match the position of the bridge–for ‘ease’ of placement.

Crews prepping the new piston assembly for the W Seattle Lower Bridge



Pull & Push

Saturday morning the team will begin pulling the massive old hydraulic assembly out from inside the pier machine house. Today crews worked to ensure the heavy pull goes smoothly, clearing space for crane movements that include pushing the new assembly in, when the time is right.

W Seattle Lower Bridge | Old piston assembly readied for 06.23.18 removal


Shuttle Resumes Monday

The bike commuter shuttle wraps up tonight, resuming Monday at 6 AM. For weekend riders, see the bike detour mapThank you @SDOTtraffic tweeters for sharing detour experiences–with these suggestions from downtown to W Seattle:

Stay far right on 1st Ave S, over E Marginal Way, to signed bike route.

Take 1st Ave S bike route under bridges, toward S Michigan St.

Stay right to ride onto 1st Ave S Bridge.

Rider-suggested route on 1st Ave S to W Seattle | Image by Google


What you can expect:

Spokane St Swing Bridge, a.k.a. W Seattle Low-Level Bridge over the Duwamish River is out of commission through next week.


 Detour routes are marked at the following locations:

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



 Shuttle service for bike riders will run during weekday commutes, up to 15 passengers each trip.

 Shuttle service is available 6 – 10 AM and 3 – 7 PM starting Monday; arriving at each side every ~20 minutes.

 Bike Riders: go to bridge approaches in Seattle and W Seattle for weekday shuttle pickup and drop-off.



Enjoy the Weekend!

It’s a busy weekend special events and construction  going on in Seattle. Have fun and stay safe, while the W Seattle Low-level Bridge gets some high-level maintenance!