Rockfall Hazards Overview by Colorado Geologic Survey

March 31, 2009 rockman Geologic Hazards Comments Off on Rockfall Hazards Overview by Colorado Geologic Survey
Rockfall on I-70

Colorado Geologic Survey RockTalk newsletter (use IE, I have problems viewing the CGS website in Firefox…the main menu shows up but the secondary menu is gone).

Nod to Dave’s Landslide Blog and the Arizona Geology blog by Lee Allison.

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A car is crushed by a rockfall near Rotura, New Zealand
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Recent Rockfall Stories in New Zealand, Colorado and Portugal

August 24, 2009 rockman Geologic Hazards Comments Off on Recent Rockfall Stories in New Zealand, Colorado and Portugal

There were three fairly recent rockfall events with fatalities that made the news and caught my eye. State Highway 36 in New Zealand is still closed after a major rockfall occurred in Rotura. The photo […]

A rock that traveled over 2,200 feet and stopped just short of a house in Springville, Utah
Geologic Hazards

Watch Boulder’s 2,200′ Journey to Utah Resident’s Front Door!

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A roughly 4-foot boulder traveled over 2,200 linear feet, losing about 1,000 feet in elevation and somehow stopped mere feet from a Springville Utah resident’s front door! And people were watching it unfold from the […]

Example of simple post base support used for high energy rockfall catchment fences consisting of a small concrete pad, two soil anchors and a micropile tube. Source: AGHP
Geologic Hazards

Rockfall Catchment Fence Foundations – Rigid or Flexible?

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An important part of a flexible net rockfall catchment fence system is the foundation.  Catchment systems have been growing in capacity, able to stop larger and higher energy rockfall events.  The trend for foundations has […]