Hemmingson Irr. Dam
Key Takeaway
Hemmingson Irr. Dam is classified as low hazard in South Dakota. It was completed in 1977 and is 49 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 22 ft (taller than 45.6% in SD) |
| Dam Length | 825 ft |
| Dam Type | Earth |
| Max Storage | 113 acre-ft |
| Normal Storage | 83 acre-ft |
| Max Discharge | 675 cfs |
| Year Completed | 1977 (49 years old) |
| NID ID | SD02317 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
DAVID HEMMINGSON
Private
Nearby Dams
O'Connell Dam
Haakon, SD
Significant Hazard 32 ftSunshine
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Low Hazard 33 ftWaggoner
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Significant Hazard 27 ftSd Noname 1
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Low Hazard 15 ftSd Noname 112
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Significant Hazard 30 ftSd Noname 141
Jackson, SD
Significant Hazard 29 ftSd Noname 148
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Low Hazard 12 ftSd Noname 107
Haakon, SD
Low Hazard 19 ftFrequently Asked Questions
What is the hazard classification of Hemmingson Irr. Dam?
Hemmingson Irr. Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Hemmingson Irr. Dam?
Hemmingson Irr. Dam is owned by DAVID HEMMINGSON (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Hemmingson Irr. Dam built?
Hemmingson Irr. Dam was completed in 1977, making it 49 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Hemmingson Irr. Dam?
Hemmingson Irr. Dam serves the following purposes: Fire Protection, Stock, Or Small Fish Pond, Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Hemmingson Irr. Dam?
Hemmingson Irr. Dam has a dam height of 22 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.