Fellow geo-blogger David Petley of Durham University posted today about the 105th anniversary of the Frank Landslide in Canada. The slide had an estimated volume of 30 million cubic meters and took all of about 100 seconds to travel down the mountain and engulf a portion of a nearby coal mining town. 76 people were killed, and a number of bodies were never recovered because of the massive amount of material. Since 2003, they have installed real-time monitoring equipment to warn if the mountain fails again, which seems likely based on an interesting video (requires Windows Media Player). It shows some of the massive tension cracks at the top of the limestone mountain. (Photo by Natural Resources Canada by way of Dave’s Landslide Blog)
[Update 12/6/07] San Diego City Council approved $20 Million for the repair of Soledad Mountain Road despite concerns by some about whether funds diverted to pay for the fix will ever be repaid by Federal and State monies. Additionally, shear pin installation mentioned on the next page is scheduled to be completed by Saturday. [/Update]
A lot has happened since my last post on the Soledad Mountain Road landslide in La Jolla. Iâ€™ll try to get you caught up on the latest with remediation and legal issues. Click through for the summary.
Four engines pulling a freight train derailed July 9 and landed in the Mississippi River after hitting a landslide or major rockfall. The accident happened near Guttenburg in northeastern Iowa. Two workers on the train were injured, one was rescued by boat. The engines are now leaking diesel fuel and transmission oil into the river, but crews are on scene to attempt to contain the contamination which has apparently spread 5 miles downstream. Two ethanol tankers derailed as well but do not appear to be leaking. Several rail cars carrying grain have spilled also. There are 75 cars still on the track. Via Reuters and The Gazette (Cedar Rapids, IA). (Photo credit: Orlan Love/The Gazette)
Amazing video of a rockslide as it happened yesterday along U.S. Highway 64 in the Ocoee River gorge in Tennessee. TDOT crews had almost finished removing rockslide debris from an event earlier in the day when a second slide occurred, blocking the road again. That looks like a pretty planar joint set dipping right into the roadway and everything was wet from the recent rains. Click through for the video.