Lewis Lake Dam
Key Takeaway
Lewis Lake Dam is classified as high hazard in Indiana. It was completed in 1974 and is 52 years old. Its primary use is recreation. 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 | 40 ft (taller than 84.8% in IN) |
| Dam Length | 700 ft |
| Dam Type | Earth |
| Max Storage | 946 acre-ft |
| Normal Storage | 523 acre-ft |
| Surface Area | 37 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 1,878 cfs |
| Year Completed | 1974 (52 years old) |
| NID ID | IN00499 |
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
DOROTHY LEWIS
Private
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Significant Hazard 19 ftFrequently Asked Questions
What is the hazard classification of Lewis Lake Dam?
Lewis 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 Lewis Lake Dam?
Lewis Lake Dam is owned by DOROTHY LEWIS (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lewis Lake Dam built?
Lewis Lake 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 Lewis Lake Dam?
Lewis Lake Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lewis Lake Dam?
Lewis Lake Dam has a dam height of 40 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 Lewis Lake Dam last inspected?
Lewis Lake Dam was last inspected on March 24, 2015. Inspection dates indicate when a formal review occurred, not the results of that inspection.