Hay
Key Takeaway
Hay is classified as low hazard in Wyoming. It was completed in 1907 and is 119 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 18 ft (taller than 17.2% in WY) |
| Dam Length | 950 ft |
| Dam Type | Earth |
| Max Storage | 5.8K acre-ft |
| Normal Storage | 3.3K acre-ft |
| Surface Area | 1,037 acres |
| Max Discharge | 0 cfs |
| Year Completed | 1907 (119 years old) |
| NID ID | WY01201 |
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
WILLIAM H. JOLLEY
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Hay?
Hay 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 Hay?
Hay is owned by WILLIAM H. JOLLEY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Hay built?
Hay was completed in 1907, making it 119 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 Hay?
Hay serves the following purposes: Irrigation, Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Hay?
Hay has a dam height of 18 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 Hay last inspected?
Hay was last inspected on May 16, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.