A bicyclist went around the barricades at the California Highway 1 Devil’s Slide Tunnel project after work hours and rode his bike through one of the tunnels, recording video as he went. I don’t advocate that kind of dangerous behavior, but I must admit that it is neat to see a tunnel nearing completion after several years of work. [Source: YouTube]
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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 […]
Geologic Hazards
Magnitude 6.0 Earthquake in Napa, California
Early Sunday morning, a 6.0 Magnitude earthquake struck near Napa California lasting 10 to 20 seconds, sending 120 people to the hospital and damaging buildings, breaking water mains, disrupting power distribution, and breaking gas lines […]
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Video: Drilled Pier Retaining Wall or Soldier Pile Wall
A drilled pier wall is an example of a retaining wall that you might use when global stability or bearing capacity considerations preclude you from a shallow foundation for a conventional retaining wall. In this […]