Alaskan Way Viaduct Replacement Tunnel (74/105)
Students from Poulsbo Middle School at the dedication ceremony for the launch of the worlds largest tunneling machine, nicknamed Bertha, on July 20, 2013 in Seattle. The bored road tunnel is replacing the Alaskan Way Viaduct and will carry State Route 99 under Downtown Seattle from the SODO neighborhood to South Lake Union. The two mile long waterfront tunnel is scheduled to open in late 2015.
Copyright © 2013 Paul Gordon Pictures