Cardinal Fly Ash No. 1 Dam
Key Takeaway
Cardinal Fly Ash No. 1 Dam is classified as high hazard in Ohio. It was completed in 1974 and is 52 years old. Its primary use is tailings. 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 | 242 ft (taller than 99.7% in OH) |
| Dam Length | 1,300 ft |
| Dam Type | Earth |
| Max Storage | 4.8K acre-ft |
| Normal Storage | 3.9K acre-ft |
| Surface Area | 80 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 10,930 cfs |
| Year Completed | 1974 (52 years old) |
| NID ID | OH00920 |
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
Cardinal Operating Company
Public Utility
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High Hazard 94 ftFrequently Asked Questions
What is the hazard classification of Cardinal Fly Ash No. 1 Dam?
Cardinal Fly Ash No. 1 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 Cardinal Fly Ash No. 1 Dam?
Cardinal Fly Ash No. 1 Dam is owned by Cardinal Operating Company (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Cardinal Fly Ash No. 1 Dam built?
Cardinal Fly Ash No. 1 Dam was completed in 1974, making it 52 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 Cardinal Fly Ash No. 1 Dam?
Cardinal Fly Ash No. 1 Dam serves the following purposes: Tailings. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Cardinal Fly Ash No. 1 Dam?
Cardinal Fly Ash No. 1 Dam has a dam height of 242 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 Cardinal Fly Ash No. 1 Dam last inspected?
Cardinal Fly Ash No. 1 Dam was last inspected on November 7, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.