Parsippany Dike
Key Takeaway
Parsippany Dike is classified as high hazard in New Jersey. It was completed in 1905 and is 121 years old. Its primary use is water supply. 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 | 30 ft (taller than 90.1% in NJ) |
| Dam Length | 2,150 ft |
| Dam Type | Masonry |
| Normal Storage | 28.0K acre-ft |
| Surface Area | 800 acres |
| Drainage Area | 119 sq mi |
| Max Discharge | 11 cfs |
| Year Completed | 1905 (121 years old) |
| NID ID | NJ00546 |
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
Jersey City Municipal Utilities Authority
Local Government
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High Hazard 8 ftFrequently Asked Questions
What is the hazard classification of Parsippany Dike?
Parsippany Dike 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 Parsippany Dike?
Parsippany Dike is owned by Jersey City Municipal Utilities Authority (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Parsippany Dike built?
Parsippany Dike was completed in 1905, making it 121 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 Parsippany Dike?
Parsippany Dike 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 Parsippany Dike?
Parsippany Dike has a dam height of 30 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 Parsippany Dike last inspected?
Parsippany Dike was last inspected on July 14, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.