Lewiston Falls
Key Takeaway
Lewiston Falls is classified as low hazard in Maine. It was completed in 1865 and is 161 years old. Its primary use is hydroelectric.
Physical Details
| Dam Height | 27 ft (taller than 85.7% in ME) |
| Dam Length | 955 ft |
| Dam Type | Masonry |
| Max Storage | 1.6K acre-ft |
| Normal Storage | 1.6K acre-ft |
| Surface Area | 200 acres |
| Drainage Area | 2,901 sq mi |
| Max Discharge | 8,050 cfs |
| Year Completed | 1865 (161 years old) |
| NID ID | ME00005 |
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
Brookfield Renewable Power LLC NYRO
Not Listed
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Low Hazard 8 ftFrequently Asked Questions
What is the hazard classification of Lewiston Falls?
Lewiston Falls 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 Lewiston Falls?
Lewiston Falls is owned by Brookfield Renewable Power LLC NYRO (Not Listed). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lewiston Falls built?
Lewiston Falls was completed in 1865, making it 161 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 Lewiston Falls?
Lewiston Falls serves the following purposes: Hydroelectric, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lewiston Falls?
Lewiston Falls has a dam height of 27 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 Lewiston Falls last inspected?
Lewiston Falls was last inspected on July 17, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.