Blog Tunnel Contract to Be Signed
Seattle will soon be one step closer to constructing a tunnel to replace to Alaskan Way Viaduct. As reported in the Seattle Times, by the close of business today, the state Department of Transportation will have signed a “$1.1 billion contract…for construction of its proposed Highway 99 tunnel.”
The four-lane passage from Sodo to South Lake Union would be drilled by a 58-foot-wide boring machine — the world’s widest — through glacial soils that are mostly stable, but abrasive and laced with groundwater and small boulders.
The state chose Seattle Tunnel Partners for its contract. Read more about the Viaduct and Seawall Replacement project here.