Old Falls
Key Takeaway
Old Falls is classified as significant hazard in Maine. It was completed in 1890 and is 136 years old. Its primary use is hydroelectric. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 36 ft (taller than 92.7% in ME) |
| Dam Length | 263 ft |
| Dam Type | Stone |
| Max Storage | 590 acre-ft |
| Normal Storage | 525 acre-ft |
| Surface Area | 85 acres |
| Drainage Area | 100 sq mi |
| Year Completed | 1890 (136 years old) |
| Year Modified | 1990 |
| NID ID | ME00182 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
KEI (USA) Power Management Inc.
Private
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Low Hazard 14 ftFrequently Asked Questions
What is the hazard classification of Old Falls?
Old Falls is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Old Falls?
Old Falls is owned by KEI (USA) Power Management Inc. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Old Falls built?
Old Falls was completed in 1890, making it 136 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 Old Falls?
Old Falls serves the following purposes: Hydroelectric, Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Old Falls?
Old Falls has a dam height of 36 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 Old Falls last inspected?
Old Falls was last inspected on June 13, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.