Prospertown Dam
Key Takeaway
Prospertown Dam is classified as high hazard in New Jersey. It was completed in 1966 and is 60 years old. Its primary use is flood risk reduction. 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 | 19 ft (taller than 70% in NJ) |
| Dam Length | 550 ft |
| Dam Type | Earth |
| Max Storage | 490 acre-ft |
| Normal Storage | 402 acre-ft |
| Surface Area | 70 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 834 cfs |
| Year Completed | 1966 (60 years old) |
| NID ID | NJ00455 |
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
Division of Fish & Wildlife
State Government
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Significant Hazard 36 ftFrequently Asked Questions
What is the hazard classification of Prospertown Dam?
Prospertown 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 Prospertown Dam?
Prospertown Dam is owned by Division of Fish & Wildlife (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Prospertown Dam built?
Prospertown Dam was completed in 1966, making it 60 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 Prospertown Dam?
Prospertown Dam serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Prospertown Dam?
Prospertown Dam has a dam height of 19 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 Prospertown Dam last inspected?
Prospertown Dam was last inspected on July 28, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.