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Tuesday, February 14, 2017 1:06:01 PM
Engineer should design things to fail gracefully, but as you can as you can see in the 3 photos below, even a graceful failure endangers the 16,000 people who live in Oroville.
So they've been evacuated until the repairs are complete. The Oroville dam is the second largest in California and taller than the Hoover Dam. The largest is at Mt Shasta.
The dam won't fail because the brown colored shale hillside "emergency spillway" to the left of the dam and to the left of the spillway is lower.
Trees were removed from the brown area last week to prevent them from impeding the water if it were released there.
They're concerned about erosion on that hillside because this is designed to give way first to release part of the water behind the dam to protect the dam.
They're now draining 1.2 acre feet of the 35 million acre feet of water stored behind the dam to allow for any future storms.
So they've been evacuated until the repairs are complete. The Oroville dam is the second largest in California and taller than the Hoover Dam. The largest is at Mt Shasta.
The dam won't fail because the brown colored shale hillside "emergency spillway" to the left of the dam and to the left of the spillway is lower.
Trees were removed from the brown area last week to prevent them from impeding the water if it were released there.
They're concerned about erosion on that hillside because this is designed to give way first to release part of the water behind the dam to protect the dam.
They're now draining 1.2 acre feet of the 35 million acre feet of water stored behind the dam to allow for any future storms.
We've run out of other people's Social Security taxes needed to subsidize our low income tax rates.
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