Jerry Johns Reservoir No. 1
Key Takeaway
Jerry Johns Reservoir No. 1 is classified as low hazard in Wyoming. It was completed in 1977 and is 49 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 25 ft (taller than 39.5% in WY) |
| Dam Length | 470 ft |
| Dam Type | Earth |
| Normal Storage | 26 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,016 cfs |
| Year Completed | 1977 (49 years old) |
| NID ID | WY01304 |
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
J BAR D RANCH, LLC
Private
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Low Hazard 29 ftFrequently Asked Questions
What is the hazard classification of Jerry Johns Reservoir No. 1?
Jerry Johns Reservoir 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 Jerry Johns Reservoir No. 1?
Jerry Johns Reservoir No. 1 is owned by J BAR D RANCH, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Jerry Johns Reservoir No. 1 built?
Jerry Johns Reservoir No. 1 was completed in 1977, making it 49 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 Jerry Johns Reservoir No. 1?
Jerry Johns Reservoir No. 1 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 Jerry Johns Reservoir No. 1?
Jerry Johns Reservoir 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 Jerry Johns Reservoir No. 1 last inspected?
Jerry Johns Reservoir No. 1 was last inspected on August 26, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.