Blue Rock Lake Dam
Key Takeaway
Blue Rock Lake Dam is classified as high hazard in Ohio. It was completed in 1937 and is 89 years old. 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 | 31 ft (taller than 64.6% in OH) |
| Dam Length | 385 ft |
| Dam Type | Earth |
| Max Storage | 361 acre-ft |
| Normal Storage | 163 acre-ft |
| Surface Area | 14 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 6,618 cfs |
| Year Completed | 1937 (89 years old) |
| NID ID | OH00061 |
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
ODNR, Division of Parks & Watercraft
State Government
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Low Hazard 35 ftFrequently Asked Questions
What is the hazard classification of Blue Rock Lake Dam?
Blue 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 Blue Rock Lake Dam?
Blue Rock Lake Dam is owned by ODNR, Division of Parks & Watercraft (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Blue Rock Lake Dam built?
Blue Rock Lake Dam was completed in 1937, making it 89 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 Blue Rock Lake Dam?
Blue Rock Lake Dam serves the following purposes: Water Supply, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Blue Rock Lake Dam?
Blue Rock Lake Dam has a dam height of 31 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 Blue Rock Lake Dam last inspected?
Blue Rock Lake Dam was last inspected on October 22, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.