Bertha Launch Pits Become Tunnels View Larger Image ENR Northwest » The launch and exit pits created for tunnel-boring machine Bertha in Seattle are in the last phase of being transformed into parts of the multilevel roadway that replaces the Alaskan Way Viaduct. Here’s how the process works. Michelle2017-10-12T09:36:16-08:00October 2nd, 2017|Alaskan Way Viaduct, Design-Build, Highways, 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