Hidden Valley Lake Dam
Key Takeaway
Hidden Valley Lake Dam is classified as significant hazard in New Jersey. It was completed in 1967 and is 59 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 25 ft (taller than 85% in NJ) |
| Dam Length | 350 ft |
| Dam Type | Earth |
| Max Storage | 645 acre-ft |
| Normal Storage | 290 acre-ft |
| Surface Area | 44 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 913 cfs |
| Year Completed | 1967 (59 years old) |
| NID ID | NJ00031 |
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
Hidden Valley Lake Association
Private
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High HazardFrequently Asked Questions
What is the hazard classification of Hidden Valley Lake Dam?
Hidden Valley 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 Hidden Valley Lake Dam?
Hidden Valley Lake Dam is owned by Hidden Valley Lake Association (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Hidden Valley Lake Dam built?
Hidden Valley Lake Dam was completed in 1967, making it 59 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 Hidden Valley Lake Dam?
Hidden Valley 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 Hidden Valley Lake Dam?
Hidden Valley Lake Dam has a dam height of 25 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 Hidden Valley Lake Dam last inspected?
Hidden Valley Lake Dam was last inspected on July 9, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.