Seismic upgrade of San Francisco’s huge water system moves into high gear to prepare for the next big quake

September 23, 2010 rockman Geologic Hazards Comments Off on Seismic upgrade of San Francisco’s huge water system moves into high gear to prepare for the next big quake
Claremont Tunnel - a water supply tunnel that crosses the Hayward Fault

Claremont Tunnel - a water supply tunnel that crosses the Hayward Fault

The San Francisco Public Utility Commission has a $4.6B program in place to try and make the water storage and supply system for the Bay Area ‘earthquake proof’ by 2015. It involves 86 separate projects, some already underway with others beginning in 2011. I’m not sure if the Claremont Tunnel Project is considered part of these projects, but it was designed to accommodate over 7-ft of horizontal offset on the Hayward Fault and not disrupt water flow in the tunnel. You can read about that project on GeoPrac. [Source: ENR via ASCE SmartBrief. Image: Sue Bednarz, Jacobs Associates, Inc. by way of Civil Engineering Magazine]

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Geologic Hazards

China Earthquake Coverage

May 13, 2008 rockman Geologic Hazards Comments Off on China Earthquake Coverage

The regular news media as well as the geo-blogosphere are all abuzz about Monday’s 7.9 magnitude earthquake in central China. Official death toll is at 12,000 right now and that’s in Sichuan Province alone.  My guess is that number will swell substantially in the coming days. If you haven’t seen photos and video yet, they are absolutely gut-wrenching. My heart and prayers go out to the victims of this disaster. (Photo by Liu Hai, AP)

Several geo-bloggers have posts about the earthquake. Harold Asmis of Ontario-GeoFish describes the earthquake as a "big valley-thrust earthquake" or what he calls the "Fist of God". Dave’s Landslide Blog has started compiling reports of landslides related to the earthquake in this landslide prone region of China. And here is the USGS info on the earthquake.

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The 23km-long North West Rail Link will feature at least six new stations, at Cherrybrook, Castle Hill, Hills Centre, Norwest, Kellyville and Rouse Hill.
Project Related

Geotechnical work begins on Sydney’s $2.5B North West Rail Link

September 26, 2011 rockman Project Related Comments Off on Geotechnical work begins on Sydney’s $2.5B North West Rail Link

Geotechnical drilling has commenced for a massive Australian rail that will consist of Australia’s longest rail tunnel at 15.5km between Epping and Kellyville. The overall route will be 23km long. The investigations consist of 150 […]