Rock Ridge Lake Dam
Key Takeaway
Rock Ridge Lake Dam is classified as significant hazard in New Jersey. It was completed in 1949 and is 77 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 10 ft (taller than 17.8% in NJ) |
| Dam Length | 235 ft |
| Dam Type | Earth |
| Normal Storage | 174 acre-ft |
| Surface Area | 17 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 330 cfs |
| Year Completed | 1949 (77 years old) |
| NID ID | NJ00178 |
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
Rock Ridge Community Club
Private
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High Hazard 11 ftFrequently Asked Questions
What is the hazard classification of Rock Ridge Lake Dam?
Rock Ridge 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 Rock Ridge Lake Dam?
Rock Ridge Lake Dam is owned by Rock Ridge Community Club (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Rock Ridge Lake Dam built?
Rock Ridge Lake Dam was completed in 1949, making it 77 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 Rock Ridge Lake Dam?
Rock Ridge 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 Rock Ridge Lake Dam?
Rock Ridge Lake Dam has a dam height of 10 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 Rock Ridge Lake Dam last inspected?
Rock Ridge Lake Dam was last inspected on December 1, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.