Alaskan Way Viaduct Replacement Program

One year ago, the iconic Alaskan Way Viaduct was permanently closed, but soon the area will be converted into a 20-acre park featuring an overlook wall and public space. The entire park is expected to open in 2024 with the first part of the project at Pier 62, which is expected to open this spring.

Yet another project in Seattle's $3.3 billion Alaskan Way Viaduct Replacement Program is under way. Crews began filling in the Battery Street Tunnel in early May with rubble from the demolished Alaskan Way Viaduct. The tunnel was decommissioned after it was found to be seismically vulnerable.

SEATTLE (AP) -- A major thoroughfare for commuters along downtown Seattle's waterfront is set to shut down for good Friday, ushering in what officials say will be one of the most painful traffic periods in the history of the booming Pacific Northwest city.

Aug. 6 marked the beginning of an important project that must be completed before the Alaskan Way Viaduct can be removed. Crews working for Kiewit Infrastructure West Co. have begun the traffic signal, striping and roadway signage work required to switch traffic on Alaskan Way from beneath the viaduct to just west of the viaduct.

The new roads inside Seattle's $1.4 billion double deck tunnel are now complete with Seattle Tunnel Partners installing the last of 1,152 road panels that make up the lower — northbound — roadway in early March. Now it's time for crews to turn their efforts toward installing and testing the tunnel's operational and safety systems — features that are earning the SR 99 tunnel billing as one of the “smartest” tunnels ever built.

The precast concrete panels that will build the lower deck of Seattle's new SR 99 double deck tunnel began arriving in early November, marking the beginning of an important stage of the tunnel construction, said Laura Newborn, spokeswoman of the project.