Amwell No. 3 Dam
Key Takeaway
Amwell No. 3 Dam is classified as significant hazard in New Jersey. It was completed in 1970 and is 56 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 26 ft (taller than 87% in NJ) |
| Dam Length | 330 ft |
| Dam Type | Earth |
| Max Storage | 122 acre-ft |
| Normal Storage | 62 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 600 cfs |
| Year Completed | 1970 (56 years old) |
| NID ID | NJ00621 |
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
Amwell Valley Conservancy
Private
Nearby Dams
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Significant Hazard 19 ftAmwell No. 1 Dam
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High Hazard 19 ftLambertville #2 Dam
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High Hazard 17 ftStony Brook W.S. Site 11 (Amwell) Dam
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Significant Hazard 22 ftVillage Two At New Hope
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Unknown 41 ftStony Brook Water Shed #7 (Hunt Lake) Dam
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High Hazard 28 ftSolebury Farm
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High Hazard 27 ftFrequently Asked Questions
What is the hazard classification of Amwell No. 3 Dam?
Amwell No. 3 Dam 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 Amwell No. 3 Dam?
Amwell No. 3 Dam is owned by Amwell Valley Conservancy (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Amwell No. 3 Dam built?
Amwell No. 3 Dam 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 Amwell No. 3 Dam?
Amwell No. 3 Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Amwell No. 3 Dam?
Amwell No. 3 Dam has a dam height of 26 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 Amwell No. 3 Dam last inspected?
Amwell No. 3 Dam was last inspected on October 12, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.