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
Comings and Goings
Golder Associates to Acquire Alan Auld Group
Golder Associates will acquire the U.K.-based Alan Auld Group of companies with offices in the U.K., Canada, and the U.S. Alan Auld Group is a global provider of specialized engineering design and construction services for underground […]
Project Related
8 Inch Well Casing Stops Bertha TBM
WSDOT held a press conference on Friday to discuss findings regarding the obstruction that had stalled the Bertha Tunnel Boring Machine since December 6. It is an 8 inch well casing, 119 feet deep from […]
Project Related
Ground Freezing and Tunneling for New York MTA’s Second Ave Subway
GeoPrac sponsor Moretrench is a key team member of the Second Avenue subway team, performing ground freezing on a 150-ft stretch of tunnel alignment in preparation for the second tunnel. ENR reports that approximately 7,200 […]