Herron Dam
Key Takeaway
Herron Dam is classified as low hazard in South Dakota. It was completed in 1939 and is 87 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 21 ft (taller than 40.7% in SD) |
| Dam Length | 444 ft |
| Dam Type | Earth |
| Max Storage | 104 acre-ft |
| Normal Storage | 53 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 385 cfs |
| Year Completed | 1939 (87 years old) |
| NID ID | SD00521 |
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
EVA FIELDS ESTATE
Private
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Low Hazard 18 ftFrequently Asked Questions
What is the hazard classification of Herron Dam?
Herron 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 Herron Dam?
Herron Dam is owned by EVA FIELDS ESTATE (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Herron Dam built?
Herron Dam was completed in 1939, making it 87 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 Herron Dam?
Herron 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 Herron Dam?
Herron Dam has a dam height of 21 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 Herron Dam last inspected?
Herron Dam was last inspected on June 1, 1986. Inspection dates indicate when a formal review occurred, not the results of that inspection.