{youtube}QrXV_AXZhF4{/youtube}
Rockfall Protection Installation Video
{youtube}QrXV_AXZhF4{/youtube}
Project Related
Devil’s Slide Tunnel Update and First Attempts to Tame the Landslide
The Devil’s Slide Tunnel project is on schedule and on budget according to a news story at ABC7News.com from earlier in June. The video (shown after the break) has a few nice shots showing rock bolting, soil nailing at the portals, and the geologic mapping and laser scanning that happens at the tunnel face.
I also came across a very neat article about how the Ocean Shore Railroad Company was the first to try to cut into the slope along what is now PCH 1 at the Devil’s Slide back in the early 1900s. They were trying to connect the then rural farming community of Half-Moon Bay with San Francisco. The railroad fought the reoccurring landslide and serious rockfalls. Ocean Shore Railroad went bankrupt in 1922 and pulled up its rails, making room for the current highway. (Photo at left from halfmoonbaymemories.com)
Geologic Hazards
Crazy Rock Slide in China (Video)
According to the Landslide Blog, this rockfall video was taken in Maoxian County in Sichuan Province of China on or around July 17, 2014. It shows a very dangerous rockfall event with people running from […]
Geologic Hazards
Rockfall Hazards Overview by Colorado Geologic Survey
The Colorado Geologic Survey has a very comprehensive overview of the geologic hazard of rockfall in all its many forms in their latest issue of RockTalk newsletter. The entire 24-page newsletter is devoted to various aspects of the problem, mitigation options and case studies all with excellent photos. I highly recommend that you check it out. Click through for the link. (Photo by CGS)