Prayers for members Harvey and Al Weidman., The Oroville Dam E-Spillway is failing. |
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Prayers for members Harvey and Al Weidman., The Oroville Dam E-Spillway is failing. |
ConeDodger |
Feb 12 2017, 08:10 PM
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#1
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Apex killer! Group: Members Posts: 23,569 Joined: 31-December 04 From: Tahoe Area Member No.: 3,380 Region Association: Northern California |
The dam itself is apparently holding, but the Emergency Spillway which is being used for the first time in the 50 year history of the dam is eroding away quickly and expected to fail. Oroville is below the dam.
Residents have been told to evacuate. (IMG:style_emoticons/default/sad.gif) |
dlkawashima |
Feb 15 2017, 08:03 PM
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#2
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914 Guru Group: Members Posts: 9,749 Joined: 1-October 10 From: San Jose Member No.: 12,234 Region Association: Northern California |
The irony is this was predicted long ago ...
SACRAMENTO BEE: NOVEMBER 27, 2005 Oroville Dam contains a flaw, some critics assert, one that could damage the structure during a major flood and threaten downstream communities. That flaw is the dam's emergency spillway, which empties onto a bare dirt hillside adjacent to the earthen-fill dam. If the emergency spillway had to be used to help quickly drain the reservoir during a major flood, the force of water rushing over the spillway lip would violently erode the hillside, washing out roads and power lines below, according to both the critics and the state agency that operates the dam. It also could undermine the foundation of the spillway, a potential disaster ... |
Cracker |
Feb 15 2017, 08:07 PM
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#3
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Advanced Member Group: Members Posts: 2,148 Joined: 2-February 10 From: Atlanta (area) Member No.: 11,316 Region Association: South East States |
Anyone who could rub a few brain cells together could figure that one out. Ridiculous.
PS: Not your post...the lack of erosion control on the hillside. I couldn't believe my eyes when I saw the run-off carving up the terrain and washing out the road. Incompetence of the highest order...maybe the engineers of the day where simply masquerading as such - or slept at a Holiday Inn. T [quote name='dlkawashima' date='Feb 15 2017, 09:03 PM' post='2455045'] The irony is this was predicted long ago ... |
GregAmy |
Feb 15 2017, 08:15 PM
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#4
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Advanced Member Group: Members Posts: 2,268 Joined: 22-February 13 From: Middletown CT Member No.: 15,565 Region Association: North East States |
PS: Not your post...the lack of erosion control on the hillside. I couldn't believe my eyes when I saw the run-off carving up the terrain and washing out the road. Incompetence of the highest order...maybe the engineers of the day where simply masquerading as such - or slept at a Holiday Inn. I was told by "someone in the know" that all that erosion damage, such as the washing away of the parking lot road and erosion of the hillside, was "expected" and "accepted" as part of the design, presumably because it was a once-in-never probability. And I agree that anyone with reasonable engineering - and 20/20 hindsight confirmation that it will happen - looks at that and says "uuuuhhh?" That's why I'm thinking that there was no real expectation that it was ever going to be used, so there was 'no need' to spend a lot of money on it. Except they never took into consideration the possibility of spillway failure... Hindsight is 20/20. And those responsible for the designs and/or cost cutting will, most assuredly, be roasted on the spit of hindsight history. |
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