Annabessacook Lake
Key Takeaway
Annabessacook Lake is classified as low hazard in Maine. It was completed in 1900 and is 126 years old. Its primary use is hydroelectric.
Physical Details
| Dam Height | 11 ft (taller than 27.3% in ME) |
| Dam Length | 195 ft |
| Dam Type | Concrete |
| Max Storage | 3.3K acre-ft |
| Normal Storage | 2.2K acre-ft |
| Surface Area | 1,420 acres |
| Drainage Area | 70 sq mi |
| Year Completed | 1900 (126 years old) |
| Year Modified | 1975 |
| NID ID | ME00097 |
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
Monmouth
Local Government
Nearby Dams
Tacoma Lakes
Kennebec, ME
Low Hazard 11 ftCochnewagon
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Significant Hazard 9 ftMill Pond
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Low Hazard 16 ftWilson Pond
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Significant Hazard 14 ftMaranacook Lake
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Low Hazard 12 ftCollins Mills
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Low Hazard 15 ftCobbosseecontee Outlet
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Significant Hazard 14 ftThompsons
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Low Hazard 17 ftFrequently Asked Questions
What is the hazard classification of Annabessacook Lake?
Annabessacook Lake 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 Annabessacook Lake?
Annabessacook Lake is owned by Monmouth (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Annabessacook Lake built?
Annabessacook Lake was completed in 1900, making it 126 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 Annabessacook Lake?
Annabessacook Lake serves the following purposes: Hydroelectric, Other, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Annabessacook Lake?
Annabessacook Lake has a dam height of 11 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 Annabessacook Lake last inspected?
Annabessacook Lake was last inspected on May 14, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.