Helsels Plum Creek Dam
Key Takeaway
Helsels Plum Creek Dam is classified as low hazard in South Dakota. It was completed in 1938 and is 88 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 18 ft (taller than 24.1% in SD) |
| Dam Length | 800 ft |
| Dam Type | Earth |
| Max Storage | 100 acre-ft |
| Normal Storage | 78 acre-ft |
| Max Discharge | 2,100 cfs |
| Year Completed | 1938 (88 years old) |
| NID ID | SD01398 |
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
RALPH NEFFORD RANCH
Private
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Low Hazard 12 ftFrequently Asked Questions
What is the hazard classification of Helsels Plum Creek Dam?
Helsels Plum Creek 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 Helsels Plum Creek Dam?
Helsels Plum Creek Dam is owned by RALPH NEFFORD RANCH (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Helsels Plum Creek Dam built?
Helsels Plum Creek Dam was completed in 1938, making it 88 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 Helsels Plum Creek Dam?
Helsels Plum Creek Dam serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Helsels Plum Creek Dam?
Helsels Plum Creek Dam has a dam height of 18 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.