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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, Aug. 3 – Monday, Aug. 13

Corridor-wide:

• Viaduct reinforcement work will require overnight closures of all lanes of southbound SR 99 between the north end of the Battery Street Tunnel and the West Seattle Bridge.

Nighttime southbound SR 99 closure details through Aug. 17:

• Sunday, Aug. 5 and Wednesday, Aug. 8 – the morning of Friday, Aug. 10 – The southbound SR 99 Alaskan Way Viaduct will be closed from the north end of the Battery Street Tunnel to the West Seattle Bridge from 9 p.m. to 5 a.m. Sunday; and again Wednesday night through Friday morning.
• Sunday, Aug. 12 – the morning of Friday, Aug. 17 – The southbound SR 99 Alaskan Way Viaduct will be closed from the north end of the Battery Street Tunnel to the West Seattle Bridge from 9 p.m. to 5 a.m. Sunday.

North:

Through late August:

• The right lane of southbound SR 99 is closed around-the-clock from Republican to Harrison streets. Access to and from southbound SR 99 is closed from Republican and Harrison streets.

Monday, Aug. 6 through Wednesday, Aug. 8.

• Sixth Avenue North will be closed between John and Thomas streets from 7 a.m. to 5 p.m. Local access will be maintained using Thomas Street.

• Thomas Street will be closed between Sixth Avenue North and Taylor Avenue North from 7 a.m. to 5 p.m.

Thursday, Aug. 9 through the morning of Friday, Aug. 9

• Sixth Avenue North will be closed between Harrison and Thomas streets from 7 p.m. to 6 a.m. Local access will be maintained using Thomas Street.

Thursday, Aug. 9 through the morning of Saturday, Aug. 11.

• John Street will be closed between Sixth Avenue North and Taylor Street from 7 a.m. to 5 p.m.

Central:

• The southbound roadway under the viaduct will be closed nightly from Marion Street to Yesler Way, from 7 p.m. to 5 a.m. Sunday, Aug. 5 through the morning of Friday, Aug. 10.

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

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, July 20 – Monday, July 30

Corridor-wide:

• Work related to the SR 99 Tunnel Project  will close all lanes of southbound SR 99 between the north end of the Battery Street Tunne
• l and the West Seattle Bridge, as well as the Elliott Avenue and Columbia Street on-ramps to southbound SR 99, Sunday through Thursday nights.

Nighttime southbound SR 99 closure details:

• Sunday, July 22 – the morning of Monday, July 23 – The southbound SR 99 Alaskan Way Viaduct will be closed from 10 p.m. to 5 a.m.
• Monday, July 23 – morning of Friday, July 27 – The southbound SR 99 Alaskan Way Viaduct will be closed nightly from 9 p.m. to 5 a.m.
• These closures are weather dependent and may be rescheduled.

North end:

• Through late August, the right lane of southbound SR 99 is closed around-the-clock from Republican to Harrison streets. Access to and from southbound SR 99 is closed from Republican and Harrison streets.
• John Street will be closed between Sixth Avenue North and Aurora Avenue North from 7 a.m. to 6 p.m. Monday, July 23, through Friday, July 27. Local access will be maintained from Sixth Avenue North Monday through Wednesday, and from Aurora Avenue North Thursday and Friday.
• Thomas Street will be closed between Sixth Avenue North and Taylor Avenue North from 7 a.m. to 5 p.m. Thursday, July 26 and Friday, July 27.
• Northbound Sixth Avenue North between Harrison and Thomas streets will be closed daily from 7 a.m. to 5 p.m. on Monday, July 23, through Wednesday, July 25.

South end:

• The right lane of northbound SR 99 will close between South Hanford Street and South Royal Brougham Way from 8 p.m., Tuesday, July 24 to 5 a.m., Wednesday, July 25. The southbound SR 99 off-ramp to South Atlantic Street also will be closed.
• Northbound SR 99 between the West Seattle Bridge and South Royal Brougham Way will close from 5:30 p.m. Saturday, July 28 through 5 a.m., Monday, July 29. Additionally: From 5:30 p.m. to 10 p.m., Saturday, July 28, northbound SR 99 will be closed between South Royal Brougham Way and the Battery Street Tunnel for the SeaFair Torchlight run.

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