Antares
Key Takeaway
Antares is classified as low hazard in Montana. It was completed in 1954 and is 72 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 30 ft (taller than 82.7% in MT) |
| Dam Length | 300 ft |
| Dam Type | Earth |
| Max Storage | 92 acre-ft |
| Normal Storage | 60 acre-ft |
| Drainage Area | 1 sq mi |
| Max Discharge | 70 cfs |
| Year Completed | 1954 (72 years old) |
| NID ID | MT01270 |
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
ANNA MAE HILL
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Antares?
Antares 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 Antares?
Antares is owned by ANNA MAE HILL (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Antares built?
Antares was completed in 1954, making it 72 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 Antares?
Antares 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 Antares?
Antares 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.