Lower Aetna Lake Dam
Key Takeaway
Lower Aetna Lake Dam is classified as significant hazard in New Jersey. It was completed in 1926 and is 100 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 12 ft (taller than 31.2% in NJ) |
| Dam Length | 240 ft |
| Dam Type | Earth |
| Max Storage | 136 acre-ft |
| Normal Storage | 106 acre-ft |
| Surface Area | 18 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 187 cfs |
| Year Completed | 1926 (100 years old) |
| NID ID | NJ00418 |
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
Borough of Medford Lakes
Local Government
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Significant Hazard 11 ftFrequently Asked Questions
What is the hazard classification of Lower Aetna Lake Dam?
Lower Aetna Lake 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 Lower Aetna Lake Dam?
Lower Aetna Lake Dam is owned by Borough of Medford Lakes (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lower Aetna Lake Dam built?
Lower Aetna Lake Dam was completed in 1926, making it 100 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 Aetna Lake Dam?
Lower Aetna Lake 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 Lower Aetna Lake Dam?
Lower Aetna Lake Dam has a dam height of 12 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 Aetna Lake Dam last inspected?
Lower Aetna Lake Dam was last inspected on December 28, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.