More From Big Bertha TBM

Repairs to Big Bertha will require a 12-story pit and removing the tunnel-boring machine’s cutterhead

Repairs to Big Bertha will require a 12-story pit and...

Posted by Wayne Grayson on Feb 28, 2014

Officials from the Washington State Department of Transportation have announced that in order to repair the world's largest tunnel-boring machine, ...

Tunnel-boring machine Big Bertha moves forward 2 feet in test run to see if blockage is fully removed

Tunnel-boring machine Big Bertha moves forward 2 feet...

Posted by Wayne Grayson on Jan 31, 2014

After nearly two months of downtime caused by a steel pipe stuck in her teeth, Big Bertha, the world's largest ...

Unstoppable Force, Immovable Object: Seattle’s Big Bertha halted by mystery object

Unstoppable Force, Immovable Object: Seattle’s...

Posted by Wayne Grayson on Dec 19, 2013

Has Big Bertha met her match? She has, at least for the time being. The world's largest tunnel-boring machine was recently ...

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Here are the most recent tips we've posted:

Hauling headaches: Know your load limits when trailering equipment

One-man machines: The operator should be the only person on a wheel loader

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