US 89 Bitter Springs Landslide Video Updates

March 2, 2013 rockman Geologic Hazards Comments Off on US 89 Bitter Springs Landslide Video Updates
US89DrillingYouTubeThumb

US89DrillingYouTubeThumbSince I last posted about this landslide, ADOT has added several videos to their YouTube channel.  It’s clear that this highway is going to be closed for the long term.  ADOT and their on-call geotechnical consultant tasked with this project, Kleinfelder, are currently drilling boreholes to attempt to characterize the failure surface and determine what the geometry of the failure surface is.  They are installing at least 10 inclinometers to try to determine the location of the slip plane or planes at depth and they have two extensometers to measure if any additional movement occurs.  They are also performing LIDAR surveys as well. Check out the videos below.

Initial ADOT Video Describing the Failure

Aerial View from a Helicopter Showing The Full Failure

It’s 1/4 of a mile wide at the toe!

Geotechnical Drilling and Inclinometer Installation (Added

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Nile Landslide Destroys Large Stretch of Washington SR 410

October 14, 2009 rockman Geologic Hazards Comments Off on Nile Landslide Destroys Large Stretch of Washington SR 410

naches_landslideA massive landslide has destroyed at least a quarter-mile of State Route 410 in Washington State, about 10 miles from Naches in Yakima County. It has also damaged about 12 structures including residential homes and quarry buildings and diverted the Naches River. The media has been referring to it as the Naches Slide, but the personnel from the Washington Department of Natural Resources, Division of Geology and Earth Resources who have began investigating the slide as well as WSDOT are calling it the Nile Landslide. (Photo by WAStateDNR-DoGaER)

Click through for photos and videos. For more info on the slide, check out the Sliding Thought Blog, an unofficial blog by Isabelle Sarikhan of the WAStateDNR – Division of Geology and Earth Resources “aka” the Washington Geologic Survey. She’s been actively investigating the slide along with some colleagues.

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Geologic Hazards

Sichuan Earthquake Update

May 21, 2008 rockman Geologic Hazards Comments Off on Sichuan Earthquake Update

[Updated May 30, 2008] I forgot to publish this post to the front page, whoops! The two links still have excellent information. In particular, Dave’s Landslide Blog has coverage of the many landslide lakes and the efforts to breach some of them. [/Update]

The latest numbers according to AFP, Worldwide News Agency, is 71,000 dead, missing or buried and over 5 million homeless. There were many victims that were buried by landslides and rockfall. In the past few days 200 rescue workers have been buried by mudslides.

For more coverage on landslides related to the earthquake, I recommend Dave’s Landslide Blog. Geology.com also has very comprehensive coverage as well. (AFP Photo)

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