Arnett Lake Dam
Key Takeaway
Arnett Lake Dam is classified as high hazard in Ohio. It was completed in 1973 and is 53 years old. Its primary use is recreation. 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 | 22 ft (taller than 33.3% in OH) |
| Dam Length | 450 ft |
| Dam Type | Earth |
| Max Storage | 48 acre-ft |
| Normal Storage | 17 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 744 cfs |
| Year Completed | 1973 (53 years old) |
| NID ID | OH02277 |
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
Nathan Family Trust
Private
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High Hazard 31 ftFrequently Asked Questions
What is the hazard classification of Arnett Lake Dam?
Arnett 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 Arnett Lake Dam?
Arnett Lake Dam is owned by Nathan Family Trust (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Arnett Lake Dam built?
Arnett Lake 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 Arnett Lake Dam?
Arnett Lake Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Arnett Lake Dam?
Arnett Lake Dam has a dam height of 22 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 Arnett Lake Dam last inspected?
Arnett Lake Dam was last inspected on November 2, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.