Alaskan Way Viaduct Replacement Construction Closures: Highlights for Monday, May 7 – Friday, May 11

Visit WSDOT’s website for a complete list of closures. Closure information changes frequently, so remember to check for updates throughout the week.

Highlights for Monday, May 7 – Friday, May 11

Central Waterfront:

  • On the night of Wednesday, May 9, crews clearing space for SR 99 tunnel construction will begin rerouting six blocks of waterfront traffic from Alaskan Way to a newly improved road beneath the viaduct. The traffic switch – which will last through at least early 2014 – will change ferry access as well as parking and traffic patterns along the waterfront south of Spring Street. A detailed map of the changes, along with a drive-through simulation that shows new routes to the ferry terminal, is available on the program website.

The following closures will occur between  7 p.m. May 9 and 5 a.m. May 10 as crews implement the reroute:

    • Traffic on northbound Alaskan Way, just north of South Jackson Street, will be detoured beneath the viaduct to Marion Street via Western Avenue and University Street. Northbound ferry traffic will be detoured to southbound Alaskan Way via University Street.
    • Washington Street will be closed at the Alaskan Way Viaduct.
    • Columbia and Madison streets, and westbound Yesler Way, will be closed at Western Avenue.
    • Southbound Alaskan Way will be reduced to one lane between Spring and Washington streets until 2 a.m. Bus stops will remain open.

North end:

  • Sixth Avenue North between Thomas and Harrison streets will be closed around-the-clock from 7 a.m. Monday through 5 p.m. Friday.

Corridor wide:

  • Weekend-long viaduct closure later this month. – Construction crews will close both directions of the Alaskan Way Viaduct between the West Seattle Bridge and the Battery Street Tunnel from 11 p.m. Friday, May 18 through 5 a.m. Monday, May 21.


Quick links:

Website links

Alaskan Way Viaduct Replacement Program

SR 99 Tunnel Project | South Holgate Street to South King Street Project


As a public agency, the Washington State Department of Transportation is subject to the State’s Public Records Act (RCW 42.56).