Duhernal Dam
Key Takeaway
Duhernal Dam is classified as significant hazard in New Jersey. It was completed in 1939 and is 87 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 13 ft (taller than 39.5% in NJ) |
| Dam Length | 878 ft |
| Dam Type | Earth |
| Max Storage | 1.5K acre-ft |
| Normal Storage | 780 acre-ft |
| Surface Area | 195 acres |
| Drainage Area | 95 sq mi |
| Max Discharge | 9,000 cfs |
| Year Completed | 1939 (87 years old) |
| NID ID | NJ00381 |
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 Sayreville
Local Government
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Significant Hazard 16 ftFrequently Asked Questions
What is the hazard classification of Duhernal Dam?
Duhernal 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 Duhernal Dam?
Duhernal Dam is owned by Borough of Sayreville (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Duhernal Dam built?
Duhernal Dam was completed in 1939, making it 87 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 Duhernal Dam?
Duhernal 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 Duhernal Dam?
Duhernal Dam has a dam height of 13 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 Duhernal Dam last inspected?
Duhernal Dam was last inspected on May 14, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.