Wilson Ranch Dam
Key Takeaway
Wilson Ranch Dam is classified as low hazard in South Dakota. It was completed in 1958 and is 68 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 13 ft (taller than 5.1% in SD) |
| Dam Length | 850 ft |
| Dam Type | Earth |
| Max Storage | 94 acre-ft |
| Normal Storage | 39 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 12,400 cfs |
| Year Completed | 1958 (68 years old) |
| NID ID | SD01755 |
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
WILSON RANCH
Private
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Low Hazard 20 ftFrequently Asked Questions
What is the hazard classification of Wilson Ranch Dam?
Wilson Ranch 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 Wilson Ranch Dam?
Wilson Ranch Dam is owned by WILSON RANCH (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Wilson Ranch Dam built?
Wilson Ranch Dam was completed in 1958, making it 68 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 Wilson Ranch Dam?
Wilson Ranch 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 Wilson Ranch Dam?
Wilson Ranch Dam has a dam height of 13 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.
When was Wilson Ranch Dam last inspected?
Wilson Ranch Dam was last inspected on November 15, 1985. Inspection dates indicate when a formal review occurred, not the results of that inspection.