Simons
Key Takeaway
Simons is classified as low hazard in South Dakota. It was completed in 1997 and is 29 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 29 ft (taller than 82.6% in SD) |
| Dam Length | 517 ft |
| Dam Type | Earth |
| Max Storage | 111 acre-ft |
| Normal Storage | 100 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 1,285 cfs |
| Year Completed | 1997 (29 years old) |
| NID ID | SD02450 |
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
DOUGLAS SIMONS
Private
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Low Hazard 23 ftFrequently Asked Questions
What is the hazard classification of Simons?
Simons 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 Simons?
Simons is owned by DOUGLAS SIMONS (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Simons built?
Simons was completed in 1997, making it 29 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 Simons?
Simons 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 Simons?
Simons has a dam height of 29 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 Simons last inspected?
Simons was last inspected on September 16, 1999. Inspection dates indicate when a formal review occurred, not the results of that inspection.