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
Failures
Cologne Tunnel Contractor’s and Engineers’ Offices Raided
According to a Reuters article, Cologne State Prosecutors raided the offices of various contractors, engineers, and even the Cologne Public Transport company to collect evidence in an investigation into the cause of the collapse of […]
Project Related
Tunneling machine’s front end bolted in place
The troubled Alaska Way Viaduct Replacement Tunnel TBM known as Bertha has reached a milestone in its repair. The front cutterhead has been repaired, and has been lowered back into the access shaft to be […]
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 […]