Lilley Lake Dam
Key Takeaway
Lilley Lake Dam is classified as high hazard in Ohio. It was completed in 1954 and is 72 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 | 43 ft (taller than 86.7% in OH) |
| Dam Length | 970 ft |
| Dam Type | Earth |
| Max Storage | 210 acre-ft |
| Normal Storage | 149 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 45 cfs |
| Year Completed | 1954 (72 years old) |
| NID ID | OH00547 |
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
Stephen R. Lilley
Private
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High Hazard 24 ftFrequently Asked Questions
What is the hazard classification of Lilley Lake Dam?
Lilley 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 Lilley Lake Dam?
Lilley Lake Dam is owned by Stephen R. Lilley (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lilley Lake Dam built?
Lilley Lake Dam was completed in 1954, making it 72 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 Lilley Lake Dam?
Lilley 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 Lilley Lake Dam?
Lilley Lake Dam has a dam height of 43 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 Lilley Lake Dam last inspected?
Lilley Lake Dam was last inspected on April 25, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.