Collier Mills Dam
Key Takeaway
Collier Mills Dam is classified as low hazard in New Jersey. It was completed in 1942 and is 84 years old. Its primary use is recreation.
Physical Details
| Dam Height | 9 ft (taller than 12.9% in NJ) |
| Dam Length | 960 ft |
| Dam Type | Earth |
| Normal Storage | 115 acre-ft |
| Surface Area | 34 acres |
| Drainage Area | 3 sq mi |
| Year Completed | 1942 (84 years old) |
| NID ID | NJ00248 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
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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Low Hazard 7 ftFrequently Asked Questions
What is the hazard classification of Collier Mills Dam?
Collier Mills Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Collier Mills Dam?
Collier Mills 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 Collier Mills Dam built?
Collier Mills Dam was completed in 1942, making it 84 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 Collier Mills Dam?
Collier Mills 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 Collier Mills Dam?
Collier Mills Dam has a dam height of 9 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 Collier Mills Dam last inspected?
Collier Mills Dam was last inspected on June 30, 2006. Inspection dates indicate when a formal review occurred, not the results of that inspection.