Joy No. 1
Key Takeaway
Joy No. 1 is classified as low hazard in Wyoming. It was completed in 1984 and is 42 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 22 ft (taller than 28.8% in WY) |
| Dam Length | 475 ft |
| Dam Type | Earth |
| Max Storage | 188 acre-ft |
| Normal Storage | 103 acre-ft |
| Surface Area | 17 acres |
| Drainage Area | 17 sq mi |
| Max Discharge | 2,110 cfs |
| Year Completed | 1984 (42 years old) |
| NID ID | WY01721 |
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
HARDY ENTERPRISES C/O EUGENE HARDY
Private
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Low Hazard 56 ftFrequently Asked Questions
What is the hazard classification of Joy No. 1?
Joy 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 Joy No. 1?
Joy No. 1 is owned by HARDY ENTERPRISES C/O EUGENE HARDY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Joy No. 1 built?
Joy No. 1 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 Joy No. 1?
Joy No. 1 serves the following purposes: Irrigation, Fire Protection, Stock, Or Small Fish Pond, Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Joy No. 1?
Joy No. 1 has a dam height of 22 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 Joy No. 1 last inspected?
Joy No. 1 was last inspected on May 12, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.