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. By Michelle|2018-02-05T13:12:08-08:00April 6, 2017|Alaskan Way Viaduct, Design-Build, Highways, Videos, Washington|Comments Off on The ULTIMATE look at Bertha’s breakthrough Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTelegramTumblrPinterestVkXingEmail About the Author: Michelle Related Posts ‘A fiasco from the beginning’ — Caltrans’ costs soar on $1.1 billion San Francisco tunnels ‘A fiasco from the beginning’ — Caltrans’ costs soar on $1.1 billion San Francisco tunnels Getting There: Congestion pricing isn’t coming to Spokane, but these roads aren’t free and never were Gallery Getting There: Congestion pricing isn’t coming to Spokane, but these roads aren’t free and never were Multi-billion, decade-long toll road plan gets green light, but bottlenecks loom Gallery Multi-billion, decade-long toll road plan gets green light, but bottlenecks loom Carbon fee returns in Olympia as lawmakers consider $15 billion transportation package Gallery Carbon fee returns in Olympia as lawmakers consider $15 billion transportation package
