That sinkhole in the main spillway isn't a crater from a bomb hit, it's a COLLAPSE of the sub-grade. For a collapse of that scale to transpire, there has to be a LOT of water making it's way from out from under that dam already,....DEEP underneath.
The implications of a potential "blowout" right down at or below the reservoirs bottom are not at all good IMHO.
GTC
Member, Clan of the Border Rats -- “Sometimes I wonder whether the world is being run by smart people who are putting us on or by imbeciles who really mean it.”- Mark Twain
