Patoka Dam
Key Takeaway
Patoka Dam is classified as high hazard in Indiana. It was completed in 1978 and is 48 years old. Its primary use is flood risk reduction. 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 Length | 1,500 ft |
| Dam Type | Rockfill |
| Max Storage | 301.6K acre-ft |
| Normal Storage | 167.3K acre-ft |
| Surface Area | 8,880 acres |
| Drainage Area | 168 sq mi |
| Max Discharge | 40,000 cfs |
| Year Completed | 1978 (48 years old) |
| NID ID | IN03018 |
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
USACE - Louisville District
Federal Government
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Significant Hazard 22 ftFrequently Asked Questions
What is the hazard classification of Patoka Dam?
Patoka 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 Patoka Dam?
Patoka Dam is owned by USACE - Louisville District (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Patoka Dam built?
Patoka Dam was completed in 1978, making it 48 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 Patoka Dam?
Patoka Dam serves the following purposes: Flood Risk Reduction, Other, Recreation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Patoka Dam last inspected?
Patoka Dam was last inspected on August 5, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.