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Post Reply - Oroville dam


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Topic - Oroville dam
Posted: February 13 2017 at 10:03pm By Dutch Josh
http://www.zerohedge.com/news/2017-02-13/oroville-dam-drains-problem-remains-leaving-evacuees-limbo

While the lack of deterioration is good news, the LA Times has released the following map showing the areas which are still at risk of flooding near Lake Oroville.


And in addition to the threat of the upcoming rains, a residual risk with the emergency spillway is that the erosion from the overflowing water may erode the earth by the dam, destabilizing the structure. According to AP, the erosion at the head of the emergency spillway threatens to undermine the concrete wall and allow large, uncontrolled releases of water from Lake Oroville. Those flows could overwhelm the Feather River and other downstream waterways and levees and flood towns in three counties.

Department engineer and spokesman Kevin Dossey told the Sacramento Bee the emergency spillway was rated to handle 250,000 cubic feet per second, but it began to show weakness Sunday after flows peaked at 12,600 cubic feet per second.