Olson, Oscar (Meagher)
Key Takeaway
Olson, Oscar (Meagher) is classified as high hazard in Montana. It was completed in 1959 and is 67 years old. Its primary use is irrigation. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 40 ft (taller than 95.1% in MT) |
| Dam Length | 465 ft |
| Dam Type | Earth |
| Max Storage | 291 acre-ft |
| Normal Storage | 256 acre-ft |
| Surface Area | 17 acres |
| Drainage Area | 3,300 sq mi |
| Year Completed | 1959 (67 years old) |
| Year Modified | 2000 |
| NID ID | MT00054 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
HANK BREWER, SARAH REINHARDT
Private
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What is the hazard classification of Olson, Oscar (Meagher)?
Olson, Oscar (Meagher) is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Olson, Oscar (Meagher)?
Olson, Oscar (Meagher) is owned by HANK BREWER, SARAH REINHARDT (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Olson, Oscar (Meagher) built?
Olson, Oscar (Meagher) was completed in 1959, making it 67 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 Olson, Oscar (Meagher)?
Olson, Oscar (Meagher) 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 Olson, Oscar (Meagher)?
Olson, Oscar (Meagher) has a dam height of 40 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 Olson, Oscar (Meagher) last inspected?
Olson, Oscar (Meagher) was last inspected on June 17, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.