Bertha's scheduled maintenance stop
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Bertha Demo Period Done, Resumes Mining

The Bertha tunnel boring machine has resumed chewing away beneath Seattle after a ‘suspension for cause’ order from WSDOT shut it down in January following two safety incidents. The BTM began tunneling with some conditions […]

Crux Subsurface rig setup for the Rhinedollar Distribution Project in the Inyo National Forrest
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High altitude foundation construction with Crux

This is an awesome limited access foundation project from Crux Subsurface! They designed and installed micropile foundations for new steel tubular towers to replace old steel latice structures. The high altitude (about 10,000 feet) meant […]