Magnolia Lake Dam
Key Takeaway
Magnolia Lake Dam is classified as significant hazard in New Jersey. It was completed in 1684 and is 342 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 8 ft (taller than 5.1% in NJ) |
| Dam Length | 750 ft |
| Dam Type | Earth |
| Normal Storage | 83 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 2 sq mi |
| Year Completed | 1684 (342 years old) |
| NID ID | NJ00598 |
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
NJDOT
State Government
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Significant Hazard 10 ftFrequently Asked Questions
What is the hazard classification of Magnolia Lake Dam?
Magnolia 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 Magnolia Lake Dam?
Magnolia Lake Dam is owned by NJDOT (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Magnolia Lake Dam built?
Magnolia Lake Dam was completed in 1684, making it 342 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 Magnolia Lake Dam?
Magnolia Lake Dam serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Magnolia Lake Dam?
Magnolia Lake Dam has a dam height of 8 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 Magnolia Lake Dam last inspected?
Magnolia Lake Dam was last inspected on April 7, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.