Lake Lenape Dam
Key Takeaway
Lake Lenape Dam is classified as high hazard in New Jersey. It was completed in 1931 and is 95 years old. Its primary use is recreation. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 27 ft (taller than 87.9% in NJ) |
| Dam Length | 440 ft |
| Dam Type | Earth |
| Max Storage | 1.1K acre-ft |
| Normal Storage | 939 acre-ft |
| Surface Area | 45 acres |
| Drainage Area | 5 sq mi |
| Max Discharge | 964 cfs |
| Year Completed | 1931 (95 years old) |
| NID ID | NJ00019 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Lake Lenape Association Board of Trustees
Private
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Low Hazard 17 ftFrequently Asked Questions
What is the hazard classification of Lake Lenape Dam?
Lake Lenape Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Lake Lenape Dam?
Lake Lenape Dam is owned by Lake Lenape Association Board of Trustees (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Lenape Dam built?
Lake Lenape Dam was completed in 1931, making it 95 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 Lake Lenape Dam?
Lake Lenape 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 Lake Lenape Dam?
Lake Lenape Dam has a dam height of 27 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 Lake Lenape Dam last inspected?
Lake Lenape Dam was last inspected on July 6, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.