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 Friday, Sept. 7 – Monday, Sept. 17
Corridor-wide:
- Viaduct reinforcement work will close all lanes of southbound SR 99 between the north end of the Battery Street Tunnel and the West Seattle Bridge at the following times:
- 9 p.m. to 5 a.m. nightly, Sunday, Sept. 9 – the morning of Friday, Sept. 14.
- 9 p.m. to 5 a.m. nightly. Sunday, Sept. 16 – the morning of Friday, Sept. 21.
North:
Monday, Sept. 10 through Wednesday, Sept. 12
- John Street between Sixth Avenue North and Taylor Avenue North will be closed from 7 a.m. to 5 p.m. daily. The sidewalk and north parking lane also will be closed through Sept. 14. Local access maintained from Taylor Avenue North.
Monday, Sept. 10, through Friday, Sept. 14
- The north parking lane and sidewalk on John Street between Sixth Avenue North and Taylor Avenue North and between Aurora Avenue North and the alley will be closed from 7 a.m. to 5 p.m. both days.
Thursday, Sept. 13 and Friday, Sept. 14
- Flaggers will direct traffic on Sixth Avenue North between Denny Way and John Street from 7 a.m. to 5 p.m. daily.
Central:
Monday, Sept. 10, through Friday, Sept. 14
- The southbound parking lane on Western Avenue between Marion and Columbia streets will be closed from 9 a.m. to 3 p.m. daily.
- The north-side parking lane and one eastbound travel lane on Marion Street between Alaskan Way and First Avenue will be closed from 7 p.m. to 5 a.m. nightly.
South:
- All lanes of northbound SR 99 will be closed between South Royal Brougham Way and the West Seattle Bridge from 11 p.m. Friday until 5 a.m. Monday.
Quick links:
- Current work: The most up-to-date resource for construction related to the Alaskan Way Viaduct replacement.
- Traffic: Real-time conditions on Seattle area highways and many connecting streets.
- Transit: WSDOT funded additional bus service along routes affected by construction.
- Bike/walk: We maintain a safe and reliable path for bicyclists and pedestrians through the construction area.
Website links
Alaskan Way Viaduct Replacement Program
SR 99 Tunnel Project | South Holgate Street to South King Street Project