Alaskan Way Viaduct replacement tunnel

The Alaskan Way Viaduct replacement tunnel is a bored road tunnel that is under construction in the city of Seattle in the U.S. state of Washington. The 2-mile (3.2 km) tunnel would carry State Route 99 under Downtown Seattle from the SoDo neighborhood to South Lake Union in the north. Boring of the tunnel with the world's largest-diameter tunnel-boring machine (TBM) "Bertha" began on July 30, 2013.

Alaskan Way Viaduct replacement tunnel

The Alaskan Way Viaduct replacement tunnel is a bored road tunnel that is under construction in the city of Seattle in the U.S. state of Washington. The 2-mile (3.2 km) tunnel would carry State Route 99 under Downtown Seattle from the SoDo neighborhood to South Lake Union in the north. Boring of the tunnel with the world's largest-diameter tunnel-boring machine (TBM) "Bertha" began on July 30, 2013.