Cheyenne River at Edgemont
Fall River County, South Dakota
The past week
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What floods at each level
- 14 ft
Highest known flood occurred May 1 1922.
- 13.65 ft
Highest flood for the period of record occurred May 20 1978.
- 13 ft
Major Flood Stage. Extensive flooding along the Cheyenne River upstream of Angostura Reservoir with inundation of structures and roads possible.
- 11 ft
Moderate Flood Stage. Widespread flooding of agricultural land along the Cheyenne River upstream of Angostura Reservoir.
- 9 ft
Minor Flood Stage. Minor flooding of agricultural land along the Cheyenne River upstream of Angostura Reservoir.
- 8 ft
Action stage and bankfull stage. The lower portions of the left bank begins to overflow. Flooding of low-lying areas along the Cheyenne River.
Highest crests on record
| Date | Level | Flow |
|---|---|---|
| Apr 30, 1922 | 14 ft | — |
| May 19, 1978 | 13.65 ft | 28,000 cfs |
| May 11, 1920 | 13 ft | — |
More on Cheyenne River
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