Coy
Key Takeaway
Coy is classified as low hazard in Wyoming. It was completed in 2009 and is 17 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 13 ft (taller than 7.6% in WY) |
| Dam Length | 1,500 ft |
| Dam Type | Earth |
| Max Storage | 108 acre-ft |
| Normal Storage | 80 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 43 sq mi |
| Max Discharge | 29 cfs |
| Year Completed | 2009 (17 years old) |
| NID ID | WY02490 |
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
YC RANCH, LLC
Private
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Low Hazard 27 ftFrequently Asked Questions
What is the hazard classification of Coy?
Coy 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 Coy?
Coy is owned by YC RANCH, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Coy built?
Coy was completed in 2009, making it 17 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 Coy?
Coy 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 Coy?
Coy has a dam height of 13 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 Coy last inspected?
Coy was last inspected on May 25, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.