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Failures

Cologne Tunnel Contractor’s and Engineers’ Offices Raided

April 6, 2009 rockman Failures Comments Off on 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 […]

Ft. Collins area trail tunnel being constructed beneath the BNSF railroad
News

Ft. Collins Hiking/Biking Tunnel Beneath BNSF Railroad

November 3, 2017 rockman News, Project Related Comments Off on Ft. Collins Hiking/Biking Tunnel Beneath BNSF Railroad

The City of Fort Collins (Colorado) recently completed construction of a tunnel underneath BNSF Railway tracks to connect more than 30 miles of trails.  The prospect of tunneling under an active rail line is a […]

An automated survey machine that will monitor multiple survey prisms along the Highway 99 tunnel alignment.
Project Related

High-tech Geotechnical Monitoring for the Alaskan Way Viaduct Replacement Tunnel

February 20, 2013 rockman Project Related Comments Off on High-tech Geotechnical Monitoring for the Alaskan Way Viaduct Replacement Tunnel

Over 200 buildings will receive some form of geotechnical and geostructural monitoring around the Highway 99 tunnel in Seattle, better known as the tunnel that will replace the Alaskan Way Viaduct. A Seattle Times article […]