‘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
Two Michigan Dam’s Breach, Thousands Evacuated
Two dams breached in Midland County, Michigan, causing flooding and the evacuation of 10,000 local residents after days of heavy rains. The Edenville Dam and the Sanford Dam both experienced “catastrophic dam failures” affecting the […]
Project Related
Drawdown landslides in muddy sediments at the Condit Dam
Dr. Dave has a nice post about rapid drawdown slope failures and he ties it in to a neat video (below) of the removal of the Condit Dam in Washington state. The video shows some […]
Project Related
Dewind Remediates Seepage at Dam in Tyler, Texas
Dewind One Pass was involved in constructing a cut-off wall to address seepage issues at Tyler Dam in Tyler, Texas. The earthen dam was constructed of clay, but the foundation soil consisted of a very […]
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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