LNMagic t1_iwm3x31 wrote

With earthen dams, sometimes you get water leaking under or through the dam. If a bulge isn't handled (usually by stacking sand bags on it to counter the pressure), you could end up with a runaway erosion with catastrophic results - especially with half a million people living downstream.


LNMagic t1_iwk7qck wrote

It looks like this study focuses mostly on the likelihood of flooding or reservoir overfilling events. Does this take into account various dam construction methods? The reason I ask is that one of Texas' largest artificial lakes is dammed by an earthworks construction which has become increasingly leaky over several decades. If it were to fail, potentially half a million people could be downstream, and the dam is 20 years older than its designed lifespan.