Prairie
Key Takeaway
Prairie is classified as low hazard in Wyoming. It was completed in 1915 and is 111 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 17 ft (taller than 15% in WY) |
| Dam Length | 1,840 ft |
| Dam Type | Earth |
| Max Storage | 771 acre-ft |
| Normal Storage | 578 acre-ft |
| Surface Area | 82 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1915 (111 years old) |
| NID ID | WY00896 |
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
WIND RIVER INDIAN RESERVATION / NICK PENTON
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Prairie?
Prairie 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 Prairie?
Prairie is owned by WIND RIVER INDIAN RESERVATION / NICK PENTON (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Prairie built?
Prairie was completed in 1915, making it 111 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 Prairie?
Prairie serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Prairie?
Prairie has a dam height of 17 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 Prairie last inspected?
Prairie was last inspected on June 15, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.