Johnson #3
Key Takeaway
Johnson #3 is classified as low hazard in Wyoming. It was completed in 1944 and is 82 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 22 ft (taller than 28.8% in WY) |
| Dam Length | 444 ft |
| Dam Type | Earth |
| Max Storage | 161 acre-ft |
| Normal Storage | 71 acre-ft |
| Surface Area | 14 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1944 (82 years old) |
| NID ID | WY00528 |
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
JOHNSON FAMILY RANCHES LLC& STATE LANDS
Private
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Low Hazard 40 ftFrequently Asked Questions
What is the hazard classification of Johnson #3?
Johnson #3 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 Johnson #3?
Johnson #3 is owned by JOHNSON FAMILY RANCHES LLC& STATE LANDS (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Johnson #3 built?
Johnson #3 was completed in 1944, making it 82 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 Johnson #3?
Johnson #3 serves the following purposes: 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 Johnson #3?
Johnson #3 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 Johnson #3 last inspected?
Johnson #3 was last inspected on August 22, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.