Duncan Lake
Key Takeaway
Duncan Lake is classified as low hazard in Arkansas. It was completed in 1984 and is 42 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 15 ft (taller than 3.7% in AR) |
| Dam Length | 830 ft |
| Dam Type | Earth |
| Max Storage | 124 acre-ft |
| Normal Storage | 49 acre-ft |
| Surface Area | 18 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 86 cfs |
| Year Completed | 1984 (42 years old) |
| NID ID | AR01474 |
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
TOM DUNCAN
Private
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Low Hazard 30 ftFrequently Asked Questions
What is the hazard classification of Duncan Lake?
Duncan 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 Duncan Lake?
Duncan Lake is owned by TOM DUNCAN (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Duncan Lake built?
Duncan Lake was completed in 1984, making it 42 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 Duncan Lake?
Duncan Lake serves the following purposes: Irrigation, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Duncan Lake?
Duncan Lake has a dam height of 15 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 Duncan Lake last inspected?
Duncan Lake was last inspected on January 1, 1985. Inspection dates indicate when a formal review occurred, not the results of that inspection.