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Complete failure at Oroville Dam


bigwave
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The $1.1 billion spent to repair Oroville Dam is failing as water is seeping through the rebuilt spillway threatens new mass evacuations over the risk of the dam collapsing.

According to national dam expert Scott Cahill of Watershed Services of Ohio, Oroville Dam is on the same failure track as in 2017, with visible water seepage trickling from the foot of the dam and dozens of points along the dam's principal spillway.  Cahill warns that warming temperatures magnified by precipitation is a growing threat to the dam.

American Thinker reported on March 1 that the Sierra snow pack was at a record 113 inches, but another 44 inches fell in the next 10 days.  With temperatures spiking this week to 75 degrees in the valleys and 41 degrees in the high mountains, dam inflows are running twice the outflows, and the water levels rose from 800 to 839 feet.

212599_5_.pngAs America's tallest earthen dam with a 770-foot face and 901-foot top of the spillway, the lake behind the Oroville Dam can hold 3.5 million acre-feet of water.  Its viability is a crucial element for the effectiveness of California's system of 1,250 flood-control dams.

The last time the water level rose to 815 feet in February 2017 and engineers began opening eight huge spillway gates to allow 100,000 acre-feet per second to race down the face of the dam, the spillway's midsection began seeping water at many points.

 

Read more: https://www.americanthinker.com/blog/2019/03/complete_failure_at_oroville_dam.html#ixzz5iaXeFKxe 
 

 

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