Great Brook
Key Takeaway
Great Brook is classified as significant hazard in Maine. It was completed in 1962 and is 64 years old. Its primary use is hydroelectric. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 18 ft (taller than 68.3% in ME) |
| Dam Length | 280 ft |
| Dam Type | Timber Crib |
| Max Storage | 45 acre-ft |
| Normal Storage | 26 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1962 (64 years old) |
| NID ID | ME96165 |
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
Great Salt Bay Sanitary District
Public Utility
Nearby Dams
Heart Pond
Lincoln, ME
Significant Hazard 20 ftEast Branch
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Significant Hazard 20 ftNew Pond
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Significant Hazard 21 ftLower Great Brook
Lincoln, ME
Significant Hazard 20 ftDamariscotta - Waste Gate Dam
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Low Hazard 10 ftDamariscotta - Intake Dam
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Low Hazard 15 ftBristol Mills
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Low Hazard 15 ftForest Pond
Knox, ME
Low Hazard 15 ftFrequently Asked Questions
What is the hazard classification of Great Brook?
Great Brook 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 Great Brook?
Great Brook is owned by Great Salt Bay Sanitary District (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Great Brook built?
Great Brook was completed in 1962, making it 64 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 Great Brook?
Great Brook serves the following purposes: Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Great Brook?
Great Brook has a dam height of 18 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 Great Brook last inspected?
Great Brook was last inspected on May 22, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.