There's only one risk, that the dam will burst. Not the dam itself, but the surrounding foundations. They built it on Gypsum (has a tendency to dissolve in wate

There's only one risk, that the dam will burst. Not the dam itself, but the surrounding foundations. They built it on Gypsum (has a tendency to dissolve in water), upkeep work (pumping grout into the voids) stopped for 1-18 months depending on who you ask. "In the language of hydraulic engineering, the process eroding the foundation is known as “solutioning.” If that problem is not addressed, what happens next is “piping”: water begins to travel between the voids, moving horizontally beneath the dam." "Schnittker told me, “Once piping begins, there is no going back. In twelve hours, the dam is gone.”"