Greenwood Lake Dam
Key Takeaway
Greenwood Lake Dam is classified as high hazard in Indiana. It was completed in 1937 and is 89 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 Height | 55 ft (taller than 95.4% in IN) |
| Dam Length | 1,559 ft |
| Dam Type | Earth |
| Max Storage | 29.8K acre-ft |
| Normal Storage | 12.8K acre-ft |
| Surface Area | 800 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 27,000 cfs |
| Year Completed | 1937 (89 years old) |
| Year Modified | 1969 |
| NID ID | IN03007 |
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
DOD USN
Federal Government
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Unknown 23 ftFrequently Asked Questions
What is the hazard classification of Greenwood Lake Dam?
Greenwood 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 Greenwood Lake Dam?
Greenwood Lake Dam is owned by DOD USN (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Greenwood Lake Dam built?
Greenwood 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 Greenwood Lake Dam?
Greenwood Lake Dam serves the following purposes: Flood Risk Reduction, Recreation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Greenwood Lake Dam?
Greenwood Lake Dam has a dam height of 55 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 Greenwood Lake Dam last inspected?
Greenwood Lake Dam was last inspected on June 29, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.