Lebo #3,East Dam
Key Takeaway
Lebo #3,East Dam is classified as high hazard in Montana. It was completed in 1973 and is 53 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 | 27 ft (taller than 79.3% in MT) |
| Dam Length | 388 ft |
| Dam Type | Earth |
| Max Storage | 4.7K acre-ft |
| Normal Storage | 3.1K acre-ft |
| Surface Area | 413 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 110 cfs |
| Year Completed | 1973 (53 years old) |
| NID ID | MT00073 |
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
LAKE LEBO IRRIGATION CO
Private
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Significant Hazard 14 ftFrequently Asked Questions
What is the hazard classification of Lebo #3,East Dam?
Lebo #3,East Dam 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 Lebo #3,East Dam?
Lebo #3,East Dam is owned by LAKE LEBO IRRIGATION CO (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lebo #3,East Dam built?
Lebo #3,East Dam was completed in 1973, making it 53 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 Lebo #3,East Dam?
Lebo #3,East Dam 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 Lebo #3,East Dam?
Lebo #3,East Dam has a dam height of 27 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 Lebo #3,East Dam last inspected?
Lebo #3,East Dam was last inspected on May 6, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.