‘The Santa Clara Valley Water District has received preliminary findings from an ongoing seismic stability evaluation for Anderson Dam that detail part of the dam could experience “significant slumping” if a 7.25 magnitude earthquake were to occur on the Calaveras Fault within about a mile of the dam.’ [Source: MorganHillTimes.com via Association of State Dam Safety Officials]
Failures
$180 Million Settlement in Reservoir Failure
On December 14, 2005, the upper reservoir of the Taum Sauk pumped storage plant, a hydroelectric power plant in the Missouri Ozarks, suffered a catastrophic failure. The resulting flood severely damaged the Jonhson’s Shut-Ins State Park and swept away the park superintendent and his family. Fortunately all of them survived. (Photos by Federal Energy Regulatory Commission and USGS)
Last week, the Missouri Attorney General’s office announced a settlement of $180 million between the facility’s owner, Ameren Corp. The failure reportedly was a result of negligence on the part of the company. More details after the break.
Comings and Goings
Winning Geotechnical Project for Bentley YII Awards
Every year Bentley Systems hosts the Year in Infrastructure (YII) awards, and in 2021, the theme was on “Going Digital Awards in Infrastructure”. There were three excellent project finalists in the geotechnical category, and the […]
Failures
Tailings Dam Failure – Cadia Mine in NSW Australia
On March 9, 2018 a “limited breach” of the tailings dam at the North Tailings Facility of the Cadia Mine tailings impoundment occurred in New South Wales, Australia. The area of the failure is approximately […]
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There are two issues here :
(1) Why this prophecy now, what credible seismic event/EQ was considered while designing the project layout, if presence of Calaveras Fault in vicinity as close as ~1.6km was known?
(2) Now with this info, what stabilisation strategy is being adopted/conceived to tackle this scenario?
thnks