Hirsig Enl. of R. P. Allen No. 1
Key Takeaway
Hirsig Enl. of R. P. Allen No. 1 is classified as low hazard in Wyoming. It was completed in 1975 and is 51 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 25 ft (taller than 39.5% in WY) |
| Dam Length | 720 ft |
| Dam Type | Earth |
| Max Storage | 104 acre-ft |
| Normal Storage | 59 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 686 cfs |
| Year Completed | 1975 (51 years old) |
| NID ID | WY01363 |
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
TRUE RANCHES, LLC
Private
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Low Hazard 29 ftFrequently Asked Questions
What is the hazard classification of Hirsig Enl. of R. P. Allen No. 1?
Hirsig Enl. of R. P. Allen No. 1 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 Hirsig Enl. of R. P. Allen No. 1?
Hirsig Enl. of R. P. Allen No. 1 is owned by TRUE RANCHES, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Hirsig Enl. of R. P. Allen No. 1 built?
Hirsig Enl. of R. P. Allen No. 1 was completed in 1975, making it 51 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 Hirsig Enl. of R. P. Allen No. 1?
Hirsig Enl. of R. P. Allen No. 1 serves the following purposes: Irrigation, Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Hirsig Enl. of R. P. Allen No. 1?
Hirsig Enl. of R. P. Allen No. 1 has a dam height of 25 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 Hirsig Enl. of R. P. Allen No. 1 last inspected?
Hirsig Enl. of R. P. Allen No. 1 was last inspected on August 13, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.