To: maggief
Here's the design theory. The spillway itself is damaged. Now the auxiliary spillway (or emergency spillway) to the left is overflowing and being eroded. The auxiliary spillway is over 1,000 feet long, whereas the regular spillway is much less wide.
86 posted on
02/12/2017 5:03:56 PM PST by
exit82
(The opposition has already been Trumped!)
To: exit82
The pic at #60 shows the earth being washed away between the spillway and the dam.
Not good.
To: exit82
That picture doesn’t tell the whole story. The ground around the spillway is severely eroded, and that erosion is growing. If it either undermines the ground behind the spillway, or undermines the dam itself (less likely), then there will be little left to hold back the lake. The land will give way and the water will come FAST!
107 posted on
02/12/2017 5:10:02 PM PST by
meyer
(The Constitution says what it says, and it doesn't say what it doesn't say.)
To: exit82
Thanks. Looks a lot like our Lake Travis in design.
115 posted on
02/12/2017 5:12:26 PM PST by
txhurl
(The LEFT are screaming at the Tsunami, and the Sky, trying to set fire to the Ocean- S.Tom)
To: exit82
To me it looks like the key is the ridge that separates the spillway from the dam. If the spillways fail seriously enough, it could affect that ridge. If that ridge fails, it looks like the dam could fail.
398 posted on
02/12/2017 8:29:06 PM PST by
Jim W N
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