Construction notifications

Construction notices and detours

Cones blocking the ramp entrance to Alaskan Way Viaduct
This page contains SR 99 and Seattle street closures due to work on the Alaskan Way Viaduct Replacement Program. See bottom of page for other traffic resources from around the region.


SR 99 HIGHWAY AND RAMP CLOSURES IN SEATTLE

Last updated: June 13, 2019

June 21-22: Northbound SR 99 reduced to 1 lane between Spokane Street and South Atlantic Street for bus lane striping, 9 p.m - 5 a.m. both Friday and Saturday nights.

LOCAL SEATTLE STREETS

Last updated: June 13, 2019

Seattle traffic cameras and road closures

The SDOT Travelers Home Page offers traffic cameras and alerts about localized road closures:

View map

NORTH OF DENNY WAY

June 3-21: Denny Way reduced to one lane in each direction 8 p.m. - 5 a.m.

June 3-21: Thomas Street closed between Seventh Avenue and Dexter Avenue North. Local driveways open.

June 8 and ongoing: Seventh Avenue North is reduced to one lane in each direction between Denny Way and Harrison Street for North Surface Street construction.

View map

BELLTOWN

May 6 - mid June: Borealis Avenue is narrowed to one lane between 6th Avenue and Denny Way. The taper will change depending on time of day.

View map

June/July: Battery Street will be narrowed to one lane 6 a.m. - 3 p.m. between Second Avenue and Denny Way while crews pour fill material into the Battery Street Tunnel.

DOWNTOWN WATERFRONT

May 28 - mid-June: Western Avenue is closed at Seneca Street while crews remove the Seneca Street ramp.

Ongoing: Crews have begun removing the Alaskan Way Viaduct. Visit the work tracker to see current work locations and street closures.

View tracker

Ongoing: Western Avenue between Marion and Columbia streets will be closed for building the new temporary pedestrian bridge.

Ongoing: Alaskan Way is narrowed to two lanes adjacent to the viaduct demolition work zone.

View map

SOUTH OF YESLER WAY

June 14: Alaskan Way reduced to one lane in each direction between South King Street and South Dearborn Street.

UPCOMING NIGHTTIME NOISE WORK

Last updated: June 13, 2019

  • Ongoing: Crews have begun removing the Alaskan Way Viaduct at multiple locations along Seattle's waterfront. Read more about what to expect from demolition.
  • June: Crews will conduct underground utility work at night around the intersection of Denny Way and Seventh Avenue North.

Other traffic resources for Seattle and the region:

Social media and apps

Traffic condition websites