Leonards Mill
Key Takeaway
Leonards Mill is classified as low hazard in Maine. It was completed in 1796 and is 230 years old. Its primary use is hydroelectric.
Physical Details
| Dam Height | 7 ft (taller than 0.2% in ME) |
| Dam Length | 135 ft |
| Dam Type | Timber Crib |
| Max Storage | 0 acre-ft |
| Normal Storage | 4.2K acre-ft |
| Surface Area | 1,200 acres |
| Drainage Area | 36 sq mi |
| Year Completed | 1796 (230 years old) |
| Year Modified | 1996 |
| NID ID | ME96077 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Maine Forest & Logging Museum Inc.
Private
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Low Hazard 8 ftFrequently Asked Questions
What is the hazard classification of Leonards Mill?
Leonards Mill is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Leonards Mill?
Leonards Mill is owned by Maine Forest & Logging Museum Inc. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Leonards Mill built?
Leonards Mill was completed in 1796, making it 230 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 Leonards Mill?
Leonards Mill serves the following purposes: Hydroelectric, Fish And Wildlife Pond, Recreation, Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Leonards Mill?
Leonards Mill has a dam height of 7 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 Leonards Mill last inspected?
Leonards Mill was last inspected on August 18, 1997. Inspection dates indicate when a formal review occurred, not the results of that inspection.