Sibra
Key Takeaway
Sibra is classified as low hazard in Montana. It was completed in 1960 and is 66 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 17 ft (taller than 34.9% in MT) |
| Dam Length | 2,570 ft |
| Dam Type | Earth |
| Max Storage | 235 acre-ft |
| Normal Storage | 220 acre-ft |
| Drainage Area | 9 sq mi |
| Max Discharge | 450 cfs |
| Year Completed | 1960 (66 years old) |
| NID ID | MT01255 |
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
WILLIAM A SIBRE
Private
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Low Hazard 30 ftFrequently Asked Questions
What is the hazard classification of Sibra?
Sibra 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 Sibra?
Sibra is owned by WILLIAM A SIBRE (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Sibra built?
Sibra was completed in 1960, making it 66 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 Sibra?
Sibra 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 Sibra?
Sibra has a dam height of 17 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.