Lake Gilman Dam
Key Takeaway
Lake Gilman Dam is classified as high hazard in New Jersey. It was completed in 1928 and is 98 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 | 14 ft (taller than 46.2% in NJ) |
| Dam Length | 350 ft |
| Dam Type | Earth |
| Normal Storage | 75 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1928 (98 years old) |
| NID ID | NJ00431 |
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
County of Gloucester
Local Government
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Significant Hazard 6 ftFrequently Asked Questions
What is the hazard classification of Lake Gilman Dam?
Lake Gilman 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 Lake Gilman Dam?
Lake Gilman Dam is owned by County of Gloucester (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Gilman Dam built?
Lake Gilman Dam was completed in 1928, making it 98 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 Lake Gilman Dam?
Lake Gilman 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 Lake Gilman Dam?
Lake Gilman Dam has a dam height of 14 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 Lake Gilman Dam last inspected?
Lake Gilman Dam was last inspected on March 20, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.