Glass Rock Lake Dam
Key Takeaway
Glass Rock Lake Dam is classified as high hazard in Ohio. Its primary use is water supply. 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 | 54 ft (taller than 93.7% in OH) |
| Dam Length | 970 ft |
| Dam Type | Earth |
| Max Storage | 825 acre-ft |
| Normal Storage | 470 acre-ft |
| Surface Area | 47 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 4,448 cfs |
| NID ID | OH00661 |
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
Thornville Property Management
Private
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Low Hazard 27 ftFrequently Asked Questions
What is the hazard classification of Glass Rock Lake Dam?
Glass Rock 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 Glass Rock Lake Dam?
Glass Rock Lake Dam is owned by Thornville Property Management (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
What is the primary purpose of Glass Rock Lake Dam?
Glass Rock Lake Dam serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Glass Rock Lake Dam?
Glass Rock Lake Dam has a dam height of 54 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 Glass Rock Lake Dam last inspected?
Glass Rock Lake Dam was last inspected on October 23, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.