Bunker Butte
Key Takeaway
Bunker Butte is classified as low hazard in Wyoming. It was completed in 1956 and is 70 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 30 ft (taller than 63.1% in WY) |
| Dam Length | 465 ft |
| Dam Type | Earth |
| Max Storage | 68 acre-ft |
| Normal Storage | 35 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1956 (70 years old) |
| NID ID | WY00909 |
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
RYAN LAND & LIVESTOCK
Private
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Low Hazard 50 ftFrequently Asked Questions
What is the hazard classification of Bunker Butte?
Bunker Butte 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 Bunker Butte?
Bunker Butte is owned by RYAN LAND & LIVESTOCK (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Bunker Butte built?
Bunker Butte was completed in 1956, making it 70 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 Bunker Butte?
Bunker Butte 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 Bunker Butte?
Bunker Butte has a dam height of 30 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 Bunker Butte last inspected?
Bunker Butte was last inspected on July 16, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.