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East Central South Dakota | During the 2011 Missouri River Flood, the dam released a record water flow of 160,200 cfs, the previous record was 70,000 cfs in 1997. During the 2011 flood, the dam was damaged by debris and a significant portion of rocks were dislodged from its upstream side. The U.S. Army Corps of Engineers soon began repairs to the dam and its spillway gates. Pressure sensors were also installed in concrete portion of the dam.[4][5]
They already went to 60,000 cfs, but still have some room left for more. | |
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