O'Hara Lake Dam
Key Takeaway
O'Hara Lake Dam is classified as high hazard in Missouri. Its primary use is other. 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 | 25 ft (taller than 23.5% in MO) |
| Dam Type | Earth |
| Max Storage | 201 acre-ft |
| Normal Storage | 125 acre-ft |
| Surface Area | 15 acres |
| Drainage Area | 153 sq mi |
| NID ID | MO11179 |
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
REX O'HARA
Private
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Low Hazard 50 ftFrequently Asked Questions
What is the hazard classification of O'Hara Lake Dam?
O'Hara Lake 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 O'Hara Lake Dam?
O'Hara Lake Dam is owned by REX O'HARA (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
What is the primary purpose of O'Hara Lake Dam?
O'Hara Lake Dam serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is O'Hara Lake Dam?
O'Hara Lake Dam has a dam height of 25 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.