Bertha, the SR 99 tunneling machine, reached her stopping point in the SR 99 tunnel access pit on Tuesday night, March 3, 2015. This cleared the way for Seattle Tunnel Partners to begin a disassembly process that will likely take weeks. This time lapse video captures part of her journey into the access pit.
The post Seattle, WA: Bertha Pushes Into the Access Pit appeared first on InfrastructureUSA: Citizen Dialogue About Civil Infrastructure.
