Long Pond
Key Takeaway
Long Pond is classified as significant hazard in Maine. It was completed in 1930 and is 96 years old. Its primary use is hydroelectric. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 8 ft (taller than 4.6% in ME) |
| Dam Length | 85 ft |
| Dam Type | Stone |
| Max Storage | 3.5K acre-ft |
| Normal Storage | 2.9K acre-ft |
| Surface Area | 897 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1930 (96 years old) |
| NID ID | ME00398 |
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
Mount Desert
Local Government
Nearby Dams
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Low Hazard 16 ftFrequently Asked Questions
What is the hazard classification of Long Pond?
Long Pond 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 Long Pond?
Long Pond is owned by Mount Desert (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Long Pond built?
Long Pond was completed in 1930, making it 96 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 Long Pond?
Long Pond serves the following purposes: Hydroelectric, Fire Protection, Stock, Or Small Fish Pond, Other, Fish And Wildlife Pond, Water Supply, Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Long Pond?
Long Pond has a dam height of 8 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 Long Pond last inspected?
Long Pond was last inspected on May 30, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.