Ashley
Key Takeaway
Ashley is classified as low hazard in Montana. It was completed in 1928 and is 98 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 10 ft (taller than 3.7% in MT) |
| Dam Length | 20 ft |
| Dam Type | Earth |
| Max Storage | 27.6K acre-ft |
| Normal Storage | 20.4K acre-ft |
| Surface Area | 2,852 acres |
| Year Completed | 1928 (98 years old) |
| NID ID | MT01163 |
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
STATE OF MONTANA, D.F.W.P.
State Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Ashley?
Ashley 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 Ashley?
Ashley is owned by STATE OF MONTANA, D.F.W.P. (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Ashley built?
Ashley was completed in 1928, making it 98 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 Ashley?
Ashley 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 Ashley?
Ashley has a dam height of 10 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 Ashley last inspected?
Ashley was last inspected on October 17, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.