Big Rock Lake Dam
Key Takeaway
Big Rock Lake Dam is classified as low hazard in Ohio. It was completed in 1963 and is 63 years old. Its primary use is recreation.
Physical Details
| Dam Height | 32 ft (taller than 67.5% in OH) |
| Dam Length | 970 ft |
| Dam Type | Earth |
| Max Storage | 159 acre-ft |
| Normal Storage | 99 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,179 cfs |
| Year Completed | 1963 (63 years old) |
| NID ID | OH00323 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Lois Mesmer
Private
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High Hazard 29 ftFrequently Asked Questions
What is the hazard classification of Big Rock Lake Dam?
Big Rock Lake Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Big Rock Lake Dam?
Big Rock Lake Dam is owned by Lois Mesmer (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Big Rock Lake Dam built?
Big Rock Lake Dam was completed in 1963, making it 63 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 Big Rock Lake Dam?
Big Rock 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 Big Rock Lake Dam?
Big Rock Lake Dam has a dam height of 32 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 Big Rock Lake Dam last inspected?
Big Rock Lake Dam was last inspected on May 8, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.