Local Information

Semiannual viaduct inspection closure set for Halloween weekend

Tuesday, October 27, 2015 - 09:30

Laura Newborn, Alaskan Way Viaduct Replacement Program communications, 206-805-2871; 206-639-8577 (mobile)

Road reopens by 6 p.m. Halloween night and closes again Sunday

SEATTLE – It’s no trick. The Alaskan Way Viaduct will be closed during daytime hours on Halloween weekend for a semiannual inspection.

Both directions of State Route 99 will close between South Spokane Street and the north end of the Battery Street Tunnel from 6 a.m. to 6 p.m. on both Saturday, Oct. 31, and Sunday, Nov. 1.
The closure will help Washington State Department of Transportation engineers thoroughly inspect the structure, as they do each spring and fall. Since the Nisqually earthquake in 2001, WSDOT has done a significant amount of work to reinforce and maintain the viaduct to keep it safe for traffic until the SR 99 Tunnel Project is complete. Read WSDOT’s viaduct safety fact sheet to learn more.
In addition to the semiannual inspection, crews working on behalf of WSDOT will complete repair work inside the Battery Street Tunnel, including testing a newly repaired fire suppression system.

Drivers should plan ahead by using WSDOT’s travel tools or SDOT’s travelers information Web page and prepare for additional congestion on nearby streets during the closure.

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