Hafner Duck Lake
Key Takeaway
Hafner Duck Lake is classified as low hazard in South Dakota. It was completed in 1957 and is 69 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 19 ft (taller than 29.5% in SD) |
| Dam Length | 700 ft |
| Dam Type | Earth |
| Max Storage | 148 acre-ft |
| Normal Storage | 117 acre-ft |
| Max Discharge | 1,050 cfs |
| Year Completed | 1957 (69 years old) |
| NID ID | SD00608 |
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
LESTER HAFNER
Private
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Low Hazard 14 ftFrequently Asked Questions
What is the hazard classification of Hafner Duck Lake?
Hafner Duck Lake 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 Hafner Duck Lake?
Hafner Duck Lake is owned by LESTER HAFNER (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Hafner Duck Lake built?
Hafner Duck Lake was completed in 1957, making it 69 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 Hafner Duck Lake?
Hafner Duck Lake 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 Hafner Duck Lake?
Hafner Duck Lake has a dam height of 19 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.