Photos, Video Show Seattle’s Stalled Tunnel Boring Machine

September 19, 2014

New photos and video provide a glimpse at the stalled tunnel-boring machine Bertha. Bertha was working on the Highway 99 project in Seattle, when it hit a pipe, which damaged the machine and caused a halt in the project. Efforts are underway to repair the machine, and officials hope to have the tunnel open in November 2016.