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HomeNewsBuilding the Tunnel Behind Bertha

Building the Tunnel Behind Bertha

February 10, 2018 rockman News, Project Related Comments Off on Building the Tunnel Behind Bertha

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.

 

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Abbey Park Project - 20 m diameter shaft (Alan Auld Group)
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Golder Associates to Acquire Alan Auld Group

October 17, 2017 rockman Comings and Goings, News Comments Off on 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 […]

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Steel pipe blocking Bertha's cutterhead
Project Related

8 Inch Well Casing Stops Bertha TBM

January 8, 2014 rockman Project Related Comments Off on 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 […]

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Excavation and ground freezing by Moretrench for MTA's Second Avenue Subway
Project Related

Ground Freezing and Tunneling for New York MTA’s Second Ave Subway

February 21, 2011 rockman Project Related Comments Off on 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 […]

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