Millhurst Lake Dam
Key Takeaway
Millhurst Lake Dam is classified as high hazard in New Jersey. It was completed in 1915 and is 111 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 | 23 ft (taller than 82.2% in NJ) |
| Dam Length | 270 ft |
| Dam Type | Earth |
| Max Storage | 843 acre-ft |
| Normal Storage | 58 acre-ft |
| Surface Area | 25 acres |
| Drainage Area | 7 sq mi |
| Max Discharge | 2,096 cfs |
| Year Completed | 1915 (111 years old) |
| NID ID | NJ00296 |
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
Township of Manalapan
Local Government
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What is the hazard classification of Millhurst Lake Dam?
Millhurst Lake 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 Millhurst Lake Dam?
Millhurst Lake Dam is owned by Township of Manalapan (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Millhurst Lake Dam built?
Millhurst Lake Dam was completed in 1915, making it 111 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 Millhurst Lake Dam?
Millhurst Lake 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 Millhurst Lake Dam?
Millhurst Lake Dam has a dam height of 23 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 Millhurst Lake Dam last inspected?
Millhurst Lake Dam was last inspected on June 30, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.