Haywire No. 1
Key Takeaway
Haywire No. 1 is classified as low hazard in Wyoming. It was completed in 1986 and is 40 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 26 ft (taller than 46.3% in WY) |
| Dam Length | 800 ft |
| Dam Type | Earth |
| Max Storage | 119 acre-ft |
| Normal Storage | 78 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 2,924 cfs |
| Year Completed | 1986 (40 years old) |
| NID ID | WY01999 |
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
VOLLMAN RANCHES, INC., C/O BOB VOLLMAN
Private
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Low Hazard 25 ftFrequently Asked Questions
What is the hazard classification of Haywire No. 1?
Haywire 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 Haywire No. 1?
Haywire No. 1 is owned by VOLLMAN RANCHES, INC., C/O BOB VOLLMAN (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Haywire No. 1 built?
Haywire No. 1 was completed in 1986, making it 40 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 Haywire No. 1?
Haywire No. 1 serves the following purposes: Irrigation, Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Haywire No. 1?
Haywire No. 1 has a dam height of 26 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 Haywire No. 1 last inspected?
Haywire No. 1 was last inspected on June 25, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.