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Video of Highway 101 Landslide in California
Looks like the Facebook video gets cropped when I embedded it here. You ca
San Francisco Millennium Tower Has Settled 16 Inches
Misrepresents actual foundation geometry. Photos show deep excavation to ne
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Geologic Hazards
Video: LiDAR-Illuminating Earthquake Hazards PDF Print E-mail
Written by Randy Post   
Sunday, 26 September 2010 22:09

From YouTube:

As part of a Southern California Earthquake Center (SCEC) and OpenTopography collaboration, Sarah Robinson (ASU M.S. student) and Andrew Whitesides (USC undergraduate) - supported by SCEC's ACCESS program (Advancement of Cyberinfrastructure Careers through Earthquake System Science) and in collaboration with numerous SCEC scientists and the OpenTopography team - have produced a new educational video entitled LiDAR - Illuminating Earthquake Hazards. The video provides an introduction to both LiDAR technology as well as the earthquake science that is being done with the data.

Credit: Arrowsmith Blog

Last Updated on Wednesday, 29 September 2010 13:01
 
Seismic upgrade of San Francisco’s huge water system moves into high gear to prepare for the next big quake PDF Print E-mail
Written by Randy Post   
Thursday, 23 September 2010 05:09
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]

 
Canterbury New Zealand Earthquake Clearinghouse PDF Print E-mail
Written by Randy Post   
Thursday, 16 September 2010 05:33
Bridge St bridge, Christchurch.

For the Mw7.1 September 3, 2010 earthquake in Canterbury, New Zealand, various teams of investigators are evaluating the effects and this earthquake on behalf of the Earthquake Engineering Research Institute. This site seems to be sort of a clearinghouse for their reports, photos and other info. [Source: . Image: Canterbury, New Zealand Earthquake Clearinghouse]

 
7.1 M Earthquake Strikes New Zealand PDF Print E-mail
Written by Randy Post   
Tuesday, 07 September 2010 13:01

On Saturday, a 7.1 Magnitude Earthquake struck in New Zealand, centered around the City of Christchurch. There was significant damage, but luckily only two serious injuries were reported and no fatalities.

 
Flooding and Landslides in China’s Gansu Province, Zhouqu County PDF Print E-mail
Written by Randy Post   
Sunday, 15 August 2010 23:16
Landslide toll in Zhouqu county, Gansu Province, China

Over the past week there has been devastating flooding and landslides in the Gansu Province of China, particularly in Zhouqu county.  According to BBC, the latest death toll numbers are at 1,239.  Here are some recent links I’ve collected. (Photo: Daily Mail)

Last Updated on Sunday, 15 August 2010 23:23
 
China Flooding and Landslides - Three Gorges Dam Being Tested PDF Print E-mail
Written by Randy Post   
Tuesday, 03 August 2010 07:48

Water sluice down at Three Gorges Dam, central China's Hubei Province, July 28, 2010China has been getting pounded recently by heavy rains and flooding. Here are a few stories I've come across in this department.

Last Updated on Tuesday, 03 August 2010 07:48
 
NFL's Titans eye $250k Compaction Grouting fix for sinkhole at LP Stadium PDF Print E-mail
Written by Randy Post   
Saturday, 31 July 2010 22:50

Hayward Baker will be the geotechnical contractor for the compaction grouting. The article draws a HORRIBLE comparison between compaction grouting and the 'top kill' that BP tried to stop the oil leak in the gulf. Honestly, sometimes reading what the media writes about engineering is a little scary. I'm sure Hayward Baker is thrilled to have their name mixed in there with the most hated company on the planet right now! [Source: Nashville Business Journal via AGC SmartBrief]

 
Questions linger a year after Logan canal burst triggered a deadly landslide PDF Print E-mail
Written by Randy Post   
Monday, 12 July 2010 01:05
The site of the Canal break near 900 East Canyon road, in Logan where the Canal broke a year ago, Wednesday, July 7, 2010

One year ago in Logan, Utah, a landslide caused a portion of an irrigation canal to fail, resulting in a secondary mudslide. A mother and two children were killed in the slope failure. Portions of the landslide area remain relatively untouched one year later as wrongful death lawsuits naming the City of Logan, Utah Department of Transportation, Utah State University are being resolved in court. Negotiations between family members and the private canal company could also end up in court. The City has acquired a number of the affected properties and hopes to turn the area into green space. [Source: The Salt Lake Tribune. Image: Rick Egan | The Salt Lake Tribune]

Last Updated on Monday, 12 July 2010 01:24
 
Jury clears Lake Oswego man in landslide that destroyed downhill neighbor's home PDF Print E-mail
Written by Randy Post   
Friday, 09 July 2010 00:32
The Bazzaz family demolished what was left of their home in the summer of 2009 after a landslide slammed into the back of the property.

The downhill neighbors were suing the uphill neighbor for $2.5M, claiming he 'girdled and removed trees in the area and redirected stormwater that contributed to the landslide' which demolished their million dollar dream home. But the jury wasn't buying it, and the they found 9-3 that the man was not at fault. [Source: OregonLive.com. Image: YUXING ZHENG/THE OREGONIAN]

 
Portland's I-5 project cutting into ancient landslide PDF Print E-mail
Written by Randy Post   
Thursday, 01 July 2010 06:10

Location of Portland Oregon's I-5: Iowa Street Viaduct Replacement Project

ODOT's I-5: Iowa Street Viaduct Replacement Project in Portland will reportedly cut into 6 ancient landslide surfaces according to a PSU Geology Professor. The existing bridge structure is over 50-years old and deteriorating and will be replaced. It appears that the slope adjacent to the bridge is where the landslide surfaces will be encountered, and the contractor has recently begun clearing trees in preparation for the work. A temporary highway will be constructed by cutting into the hill. The hill will be stabilized by a retaining wall on the order of 40-ft tall. I have not found any descriptions of the type of retaining wall proposed. News video below gives a good overview of the site.

[Source: kgw.com. Image: The Oregonian]

Last Updated on Thursday, 01 July 2010 13:12
 
Preparing for the Big One: Assessing American Building Codes PDF Print E-mail
Written by Randy Post   
Monday, 21 June 2010 15:54
Preparing for the Big One: Assessing American Building Codes

Audio files and PowerPoint presentations from an ENR-moderated panel discussion on June 8, 2010 discussing US seismic codes in the context of the observations made from the recent Haiti and Chile earthquakes.

The 2010 earthquakes in Haiti and Chile reinforced the importance of building codes. Are regions in the United States just as vulnerable to a catastrophic earthquake? David Applegate, Senior Science Advisor for Earthquake and Geologic Hazards at the U.S. Geological Survey; Michael J. Armstrong, Senior Vice President, International Code Council; and Michael Mahoney, Geophysicist, Federal Emergency Management Agency discuss the state of seismic building codes around the country. Tom Ichniowski, DC Bureau Chief for Engineering News-Record, moderates.
[Source: National Building Museum via ENR. Image: David Applegate presentation, nbm.org]

 
Mudslide and Debris Flow in Oliver, B.C. PDF Print E-mail
Written by Randy Post   
Thursday, 17 June 2010 05:40
June 2010 Oliver, B.C. mudslide and debris flow

Five houses were destroyed and two more severely damaged but nobody was injured in a mudslide and debris flow that occured near Oliver, B.C. on Sunday. It occurred at 2:20 in the afternoon, and there are numerous first hand accounts in the article. [Source: CTV British Columbia. Image: CTV British Columbia]

 
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