This is a great little time lapse video from WSDOT that shows the construction of the tunnel behind the Bertha’s disassembly pit for the Alaska Way Viaduct Replacement Project.
Building the Tunnel Behind Bertha
Project Related
Underneath Seattle: Working Under Pressure to Keep Bertha Moving
Every tunneling machine needs its cutting tools replaced every now and then. But the challenge is keeping a giant machine sharp while a wall of waterlogged earth looms in front. Welcome to the world of […]
Miscellaneous
Happy National Tunneling Day (UK)
The British Tunnelling Society (BTS) is encouraging our profession and the public to celebrate National Tunneling Day today, December 7. Their goal is to promote the industry (and its many professions) to students of all ages […]
Project Related
Bertha TBM Won’t Resume Drilling Until March 2015
Seattle Tunnel Partners released a new schedule this week for the repair of the damaged seals on the Bertha Tunnel Boring Machine. This revised schedule shows that the TBM won’t be digging again until March […]