Eilen Wpa
Key Takeaway
Eilen Wpa is classified as low hazard in South Dakota. It was completed in 1989 and is 37 years old. Its primary use is fish and wildlife pond.
Physical Details
| Dam Height | 9 ft (taller than 0.7% in SD) |
| Dam Length | 266 ft |
| Dam Type | Earth |
| Max Storage | 725 acre-ft |
| Normal Storage | 257 acre-ft |
| Surface Area | 89 acres |
| Drainage Area | 22 sq mi |
| Max Discharge | 3,475 cfs |
| Year Completed | 1989 (37 years old) |
| NID ID | SD02520 |
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
USFWS
Federal Government
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Low Hazard 33 ftFrequently Asked Questions
What is the hazard classification of Eilen Wpa?
Eilen Wpa 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 Eilen Wpa?
Eilen Wpa is owned by USFWS (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Eilen Wpa built?
Eilen Wpa was completed in 1989, making it 37 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 Eilen Wpa?
Eilen Wpa 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 Eilen Wpa?
Eilen Wpa has a dam height of 9 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.