1972 Black Hills-Rapid City Flood - Pacific Standard

1972 Black Hills-Rapid City Flood

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DATE: June 1972

LOCATION: South Dakota

DEATHS: 238, with more than 3,000 injured

ESTIMATED COST: $826 million *

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WHAT HAPPENED: Rains over the Black Hills produced record floods on Rapid Creek and other area streams. Heavy debris in the floodwaters clogged the spillway of the Canyon Lake Dam, which failed, sending a flood wave into Rapid City. Much of the damage occurred because people were living in the floodway. After the event, housing was relocated, but many businesses were allowed to remain.

*All costs estimated in 2009 dollars.

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