We're limestone, too, much like Oroville. Note distribution pad directly below, but we have no emergency or auxillary spillways, just 8 gates that can be opened during flooding. The city of Austin's being washed away twice is why this dam was built in 1940. It generates hydroelectricity.
There being footage of lineman cutting cable is odd and disconcerting. Something about this whole situation is really not adding up.