Pattison Lake Dam
Key Takeaway
Pattison Lake Dam is classified as high hazard in Indiana. It was completed in 1945 and is 81 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 | 30 ft (taller than 62.3% in IN) |
| Dam Length | 215 ft |
| Dam Type | Earth |
| Max Storage | 66 acre-ft |
| Normal Storage | 40 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 28 cfs |
| Year Completed | 1945 (81 years old) |
| NID ID | IN00503 |
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
MICHAEL J AND BETH A PATTISON
Private
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High Hazard 51 ftFrequently Asked Questions
What is the hazard classification of Pattison Lake Dam?
Pattison 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 Pattison Lake Dam?
Pattison Lake Dam is owned by MICHAEL J AND BETH A PATTISON (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Pattison Lake Dam built?
Pattison Lake Dam was completed in 1945, making it 81 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 Pattison Lake Dam?
Pattison 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 Pattison Lake Dam?
Pattison Lake Dam has a dam height of 30 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 Pattison Lake Dam last inspected?
Pattison Lake Dam was last inspected on January 3, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.