The ULTIMATE look at Bertha’s breakthrough WSDOT » On April 4, 2017, one of the world’s largest tunneling machines chewed through more than 1,000 tons of concrete and fiberglass to end a 1.7 mile journey underneath downtown Seattle. With a drone’s eye view, this video shows the raw power of Bertha’s breakthrough – start to finish. Michelle2018-02-05T13:12:08-08:00April 6th, 2017|Alaskan Way Viaduct, Design-Build, Highways, Videos, Washington| Share This Story, Choose Your Platform! FacebookTwitterEmail Related Posts ‘A fiasco from the beginning’ — Caltrans’ costs soar on $1.1 billion San Francisco tunnels April 10th, 2019 Getting There: Congestion pricing isn’t coming to Spokane, but these roads aren’t free and never were April 8th, 2019 Multi-billion, decade-long toll road plan gets green light, but bottlenecks loom March 12th, 2019 Carbon fee returns in Olympia as lawmakers consider $15 billion transportation package March 6th, 2019 Can America Still Build Big? A California Rail Project Raises Doubts February 25th, 2019 Northam announces selection of firms to build $3.3 billion tunnel project February 16th, 2019 Iowa drivers, rejoice: 60 years later, northern Iowa’s Highway 20 expansion is finally done October 16th, 2018 What’s Colorado Proposition 110: Sales tax increase for transportation October 12th, 2018 Transportation officials work to connect I-10 and I-19 south of Tucson October 12th, 2018
