Advancing Deltas III

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.

One comment

  1. […] 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 […]

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