Estimation of 100-year flood magnitudes at ungaged sites

Hardison, Clayton H.

doi:10.3133/ofr73100

Cited by 1 publication

(1 citation statement)

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“…For example, the flow of Rapid Creek at Rapid City 1 week after the flood was about 500 percent higher than the flow 1 week before the flood; 2 weeks after the flood, the flow was still about 400 percent higher. 1 From Patterson ( 1966) and Hardison ( 1973 According to the American Red Cross, 237 people died in the Black Hills floods. Another 3,057 people were injured, including 118 who needed hospital care.…”

Section: Cheyenne Rivermentioning

confidence: 99%

The Black Hills-Rapid City flood of June 9-10, 1972: A description of the storm and flood

Schwarz¹,

Hughes²,

Hansen³

et al. 1975

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The U.S. Geological Survey and the National Weather Service have a long history of cooperation in monitoring and describing the Nation's water cycle-the movement of water as atmospheric moisture, as precipitation, as runoff, as streamflow, as ground water, and finally, through evaporation, its return to the atmosphere to begin the cycle over again. The cooperative effort has been a natural dovetailing of technical talent and responsibility: the National Weather Service as the Federal agency responsible for monitoring and predicting atmospheric moisture and precipitation, for forecasting river flow, and for issuing warnings of destructive weather events; and the U.S. Geological Survey as the primary agency for monitoring the quantity and quality of the earthbound water resources. This report represents another step in the growth of our cooperative efforts. In some ways, this closer working arrangement has been spurred by five major flood disasters that have struck the Nation in the last 5 years. In August 1969, the remnants of Hurricane Camille caused flooding of the James River and other streams in central Virginia that left 152 people dead or missing. In February 1972, the failure of a coal-waste darn sent a flood wave down the Buffalo Creek valley of West Virginia, leaving 118 people dead or missing. On June 9, 1972, extremely heavy rains over the eastern Black Hills of South Dakota produced record-breaking floods on Rapid Creek and other streams, leaving 237 dead and 8 missing. Beginning on June 18, 1972, the remains of Hurricane Agnes produced floods in the eastern United States from Virginia to New York that killed 117 people in what has been called the worst natural dis•aster in American history. Most recently, the spring 1973 floods on the Mississippi River produced a record 89 days of floodflow at Vicksburg, Miss., and 78 days at St. Louis, Mo.; inundated more than 11 million acres of land; and damaged over 30,000 homes. These disasters have underlined the need to know more about and respect the force and flow of floodwater and have given impetus to further cooperation between the U.S. Geological Survey and the National Weather Service to combine their respective studies and information about flood events into single, unified reports. Hopefully, this documentation of the Black Hills-Rapid City flood will aid the understanding of such flood disasters and will help improve human preparedness for coping with future floods of a similar catastrophic magnitude.

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Section: Cheyenne Rivermentioning

confidence: 99%