In October of 2009, a massive landslide in the Nile Valley, near Yakima, Washington, took out a portion of Washington SR 410 and impacted the Naches River as well. This video from WSDOT shows what emergency response was required to get temporary traffic restored on a detour and get a more permanent detour constructed.
Geologic Hazards
Sea to Sky Highway Landslide
Earlier this month, there was a massive slope failure on the "Sea to Sky" highway in British Columbia. It is interesting to note that this same area had a large rockslide in 1965, and a photo of this failure is featured on the cover of the classic text, Rock Slope Engineering by Hoek and Bray. The media played up the aspect that this highway is one of the only ways to access the site of the 2010 Winter Olympic games hosted by Vancouver.
The composite image above shows the book cover and the recent rockslide event (Photo credit: Erik Eberhardt of the University of British Columbia by way of Dave’s Landslide Blog). Dave has done a fabulous job collecting photos, facts and links from around the web. In a follow up post, he added some additional photos and discussion. I recently came across an article that described how the highway originally was slated to have a tunnel bypassing the slide, but that the price tag of $200 million (CAN?) for a 1-km stretch killed the project.
Geologic Hazards
Fatal Landslide Triggered by Hurricane Ida
A portion of the embankment on MS26 in George County Mississippi failed after heavy rains and flooding caused by Hurricane Ida. It created a hole about 20 feet deep and 50 feet across late on […]
Geologic Hazards
Taiwan Mudslides – Death Toll As Many as 600
According to JapanToday, the death toll from the Typhoon Morakot caused mudslides and related damage could be as high as 600 after the typhoon dumped over 2-meters of rain (79-inches!) on the island nation. The […]