Thompson Ranch Dam
Key Takeaway
Thompson Ranch Dam is classified as low hazard in South Dakota. It was completed in 2003 and is 23 years old. Its primary use is fish and wildlife pond.
Physical Details
| Dam Height | 22 ft (taller than 45.6% in SD) |
| Dam Length | 420 ft |
| Dam Type | Earth |
| Max Storage | 78 acre-ft |
| Normal Storage | 37 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 1,080 cfs |
| Year Completed | 2003 (23 years old) |
| NID ID | SD02556 |
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
B&V THOMPSON RANCH
Private
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Low Hazard 18 ftFrequently Asked Questions
What is the hazard classification of Thompson Ranch Dam?
Thompson 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 Thompson Ranch Dam?
Thompson Ranch Dam is owned by B&V THOMPSON RANCH (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Thompson Ranch Dam built?
Thompson Ranch Dam was completed in 2003, making it 23 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 Thompson Ranch Dam?
Thompson Ranch Dam serves the following purposes: Fish And Wildlife Pond, 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 Thompson Ranch Dam?
Thompson Ranch 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.