SACRAMENTO, Calif. — For emergency planning purposes, scientists unveiled a hypothetical California scenario that describes a storm that could produce up to 10 feet of rain, cause extensive flooding (in many cases overwhelming the state’s flood-protection system) and result in more than $300 billion in damage. [Source: USGS Release, click for the rest of the release.]
Project Related
Devil’s Slide Breakthrough Video and Links
The “breakthrough” media event for CALTRANS’ Devil’s Slide Tunnel project was this past Friday. A large crowd of politicians, news crews and locals were on hand as a road-header broke through a shotcrete face in a ceremony to mark the completion of the excavation portion of the first of two tunnels. It will still be over a year until the tunnels are opened to traffic. The second tunnel is expected to breakthrough as early as this week. (Photo by SFGate.com)
Caltrans tunnel punch-through from Barry Parr on Vimeo.
The Video came from the Coastsider, the page also has comments from the videographer, Barry Parr, which offer a good perspective on the event.
Click on through for more links etc.
Geologic Hazards
Rolling Hills Estates Landslide, LA County
A major landslide occurred on July 8, 2023, in the Rolling Hills Estates on the North side of the Palos Verdes peninsula in LA County resulting in the evacuation of 12, likely destroyed, homes. There […]
Geologic Hazards
California Geologic Survey publishes deep-seated landslide susceptibility map
The California Geologic Survey has published a new map of landslide susceptibility for the entire state of California. It addresses only deep-seated landslides, not shallow slides such as debris flows. The criteria used for developing […]