The viaduct is shrinking along Seattle’s waterfront and the work zone is changing this week as the contractor Kiewit shifts their work zone. Meanwhile, the rebuild of Seventh Avenue North will reach Denny Way this summer and fall with a series of lane reductions and street closures. Read below for details and maps.
Alaskan Way in Pioneer Square: Yesler and King reopen, Jackson closes
Crews are removing the viaduct through Pioneer Square from both ends. See the map at right (click to enlarge). Here are traffic control changes to expect this week:
Today: South King Street reopens at Alaskan Way.
Tomorrow: Yesler Way reopens at Alaskan Way
Tomorrow: South Jackson Street closes at Alaskan Way.
Uniformed police officers will help direct traffic this week at key intersections during the evening commutes.
To reach Colman Dock: Vehicles can still enter the drive-on entrance at South Jackson Street by taking a left or right off Alaskan Way. Entering the holding area by driving straight west on South Jackson Street will be unavailable while viaduct demolition occurs overhead. Please allow extra time to reach your ferry as traffic congestion remains high on Alaskan Way.
People walking and biking: When South Jackson Street closes, your new east-west options between Alaskan Way and Pioneer Square will be South King Street and Yesler Way. South Dearborn Street and Columbia Street also remain open to bicycles and pedestrians.
Railroad Way South: This street will become northbound-only from South Dearborn Street, with northbound vehicles forced to take a right on South King Street. Vehicles can also turn onto southbound Railroad Way South from South King Street, but the southbound lane terminates mid-block at the 505 Western Avenue building parking garage.
8/22 update: The schedule below is subject to change based on the progress of work. People walking and biking through the intersection of Seventh Avenue North and Denny Way should expect several-block detours during these weekends. Sidewalks on Denny Way between Sixth Avenue and Dexter Avenue will be closed.
The intersection of Denny Way and Seventh Avenue is the mixing zone for two projects, the filling and sealing of the Battery Street Tunnel and the North Surface Street Connections project. Starting this month this intersection becomes a focus of work.
Crews will be repaving sections of the intersection and installing a duct bank just east of the intersection. Due to the intersection’s importance in moving buses and vehicles, this work will occur only on nights and weekends.
View a map of current traffic configuration in the area. Below is what to expect at the intersection of Denny Way and Seventh Avenue this summer and fall:
Aug. 24-25: Denny Way reduced to two lanes between Sixth Avenue and Dexter Avenue.
Sept. 7-8: Denny Way reduced to two lanes between Sixth Avenue and Dexter Avenue.
Sept. 14-15: Denny Way fully closed between Sixth Avenue and Borealis Avenue. Southbound Seventh Avenue North detoured at John Street. Wall Street closed at Denny Way.
Sept. 21-22: Denny reduced to two lanes between Sixth Avenue and Dexter Avenue. Wall Street closed at Denny Way.
Sept. 28-29: Denny Way closed between Borealis Avenue and Dexter Avenue.
Oct. 5-6: Contingency weekend in case of weather.
Crews will also be working in the intersection on weekday nights, which will involve lane reductions but no full street closures. These closures are weather dependent, so subscribe to our weekly construction email or follow our Construction notices and detours page for updates.