What happens when that spillway is gone from the top break to the bottom of the spillway and basically carved out like a flat wall?
[/quote]
Yeah, I’m pretty concerned that all of the hill downstream could erode away, then the erosion slowly works it way upstream.
As that happened more and more, less hillside would buttress the main earth dam and well you know what could happen when the weight of the water behind the dam overrules the buttress.
Still unlikely I would think, but if it keeps raining…
