Black Butte
Key Takeaway
Black Butte is classified as low hazard in Wyoming. It was completed in 1989 and is 37 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 25 ft (taller than 39.5% in WY) |
| Dam Length | 230 ft |
| Dam Type | Earth |
| Max Storage | 236 acre-ft |
| Normal Storage | 151 acre-ft |
| Surface Area | 17 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 114 cfs |
| Year Completed | 1989 (37 years old) |
| NID ID | WY02043 |
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
TWIN EAGLE RANCH LLC
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Black Butte?
Black 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 Black Butte?
Black Butte is owned by TWIN EAGLE RANCH LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Black Butte built?
Black Butte was completed in 1989, making it 37 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 Black Butte?
Black Butte serves the following purposes: Fire Protection, Stock, Or Small Fish Pond, Fish And Wildlife Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Black Butte?
Black Butte 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 Black Butte last inspected?
Black Butte was last inspected on July 19, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.