Bridge Notices for SR 99 Closure

To accommodate increased roadway traffic during the closure of the Alaskan Way Viaduct on January 11, 2019, the Coast Guard has changed the operating schedule for four bridges in Seattle from January 11, 2019 to February 9, 2019, based on a request from SDOT Roadway Structures.

Spokane St Bridge across the Duwamish Waterway

  • Who: No vessels may request the bridge to open except vessels of 5000 or more gross tons, a vessel towing a vessel of 5000 or more gross tons, and a vessel proceeding to pick up a vessel of 5000 gross tons or greater
  • When: 7 – 10 AM and 2 – 5 PM, Monday through Friday. This change will begin 1 AM on January 11, 2019 and end at 11:59 PM on February 9, 2019.

For information on the draws of each bridge across the Duwamish Waterway not during the SR 99 closure, please click here. 

Ballard Bridge, Fremont Bridge, and University Bridge

  • Who: No vessels less than 1000 tons may request the bridge to open unless the vessel is towing a vessel of 1000 or more gross tons.
  • When: 7 – 10 AM and 3:30 – 7 PM, Monday – Friday. This change will begin 1 AM on January 11, 2019 and end at 11:59 PM on February 9, 2019.

For information on the draws of each bridge across the Lake Washington Ship Canal not during the SR 99 closure, please click here.

The average bridge opening, from the time street traffic stops to the time it resumes, lasts about 4 minutes. The Spokane St Swing Bridge openings last about 10 minutes.

In accordance with 33 CFR 117.35(e), the drawbridges must return to their regular operating schedule immediately at 12 AM on February 10, 2019.

More Information

For more information, please see the Coast Guard’s Local Notice to Mariners. You may also contact Mary Brown with SDOT at 206-386-4208.

More information about bridge openings is available on SDOT’s Bridges webpage.