Quote:
Originally Posted by jyl
I'm reading the helicopters are dropping rocks in the eroded part, and they are then going to use cement to cover and stabilize the rocks. Access is very difficult.
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I witnessed this on the news. There was an aerial video shot of large rocks spread out at the foot of the emergency spillway, and a worker was shooting concrete from a hose around the gaps in the rocks. At the time, I thought that the concrete would not be cured enough to do any good, but if the mix was gunite, it would likely hold up fairly quickly.
Quote:
Originally Posted by Holger
Who builds a dam that cannot support a complete fill?
I hope this turns out well!
Today I heard in the news that the situation is a bit better this morning?
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Just to be clear, the dam is not in danger and certainly supports a complete fill. If you mean by "support a complete fill" that the regulation of the water level is faulty, then you may have a point. However, the main spillway has worked perfectly for 50 years, often in years with complete fills and then some. This time, there was a break in the spillway bed (which to my knowledge has not been explained) that caused the flow to be reduced to the point where the lake level rose to breach the emergency spillway brim--something that has never happened.
Projections of the ability of the emergency spillway to handle the overflow were theoretical and have proved to be in error. That's why the situation is as it is, today.