The Teton Dam was not even close to full when it failed...
Different causes there though. Nothing to do with the spillway. IIRC, erosion didn't begin at the top.
Could not have been erosion from the top because the dam was not close to full. Water made its way through the earthen fill dam and cavitated some hellacious holes pronto.
The Oroville Dam could fail in essentially the same way if water makes it through the "bedrock."
Mark Begich, Joaquin Jackson, and Heller resistance... Three huge reasons to worry about the NRA.
