An curved arrow pointing right. When Seattle decided to put in a new highway tunnel beneath the city, a machine was specially built to dig the 2-mile long, 57-foot wide project. The 6,700 ton ...

Seattle-area voters ... ongoing sensitive science projects. The train and tracks JCM used for past projects to transport crews and supplies through tunnels are loud and produce significant ...

These tests will include train movements between the Downtown Seattle Transit Tunnel and Judkins Park Station. Power to the system will remain active and trains will be moving, but the nature of ...

Washington State Department of Transportation will implement a toll as drivers make their way through the tunnel... The second phase of the Seattle Squeeze is winding down but that doesn’t mean ...

A portion of Seattle's Alaskan Way Viaduct is being replaced by a deep tunnel, and the machine purpose-built for the job is the world's largest tunnel boring machine (TBM), christened "Bertha." ...