Following yesterday’s demo blast to Condit Dam, the experimental management of 2.4-million cubic yards of potentially mobilized sediment got underway. Surprises emerged from the get-go, as it took just over an hour to drain the dam’s reservoir (engineered scenarios predicted it would take 6 hrs), and shortly thereafter the river began cutting itself a new channel:
Thick masses of sediment, having been held in suspended animation for decades, sloughed off their stone foundations in a cascade of quasi-intentional fluvial landslides.
Free Association Design 
[…] space (much like the recent removal of the Condit Dam in Washington state, which Brett Milligan has written about, though that was a private spectacle and involved much more than a year of stored […]