Lower Great Brook
Key Takeaway
Lower Great Brook is classified as significant hazard in Maine. It was completed in 1970 and is 56 years old. Its primary use is fire protection. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 20 ft (taller than 74.1% in ME) |
| Dam Length | 300 ft |
| Dam Type | Earth |
| Max Storage | 19 acre-ft |
| Normal Storage | 11 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1970 (56 years old) |
| NID ID | ME96163 |
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
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Low Hazard 15 ftFrequently Asked Questions
What is the hazard classification of Lower Great Brook?
Lower 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 Lower Great Brook?
Lower 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 Lower Great Brook built?
Lower Great Brook was completed in 1970, making it 56 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 Lower Great Brook?
Lower Great Brook serves the following purposes: Fire Protection, Stock, Or Small Fish Pond, Fish And Wildlife Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lower Great Brook?
Lower Great Brook has a dam height of 20 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 Lower Great Brook last inspected?
Lower Great Brook was last inspected on May 22, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.