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Message Subject California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed
Poster Handle Anonymous Coward
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Over the last 10 hours the reported increase in AF stored has been just 610 AF:

[link to cdec.water.ca.gov]

YET...if we calculate the difference between CFS inflows and CFS outflows during that same period, each hour by hour as follows:

OUT-------IN--Difference

9,522 10,668 +1146
9,448 10,417 +969
9,367 11,340 +1983
9,552 10,852 +1300
9,439 9,752 +313
9,591 9,752 +161
9,543 10,679 +1136
9,850 10,777 +927
9,724 9,660 -64
9,828 10,643 +825

That is an average hourly CFS differential of +869.6. That means a net increase of 869.6x60x60 cubic feet of water flowed in every hour for ten hours= 31,305,600 cubic feet added the past ten hours.

1 acre foot = 43,560 CF

31,305,600/43,560 = 719 acre feet (AF)

119 AF are thus leaking UNREPORTED, every ten hours, through other places...the main spillway gates, seeping under the spillway, etc... or about 12 acre feet per hour.

That's a LOT of leakage.
 
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