Grenloch Lake Dam
Key Takeaway
Grenloch Lake Dam is classified as significant hazard in New Jersey. It was completed in 1907 and is 119 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 21 ft (taller than 78.3% in NJ) |
| Dam Length | 250 ft |
| Dam Type | Earth |
| Max Storage | 272 acre-ft |
| Normal Storage | 92 acre-ft |
| Surface Area | 21 acres |
| Drainage Area | 15 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1907 (119 years old) |
| NID ID | NJ00402 |
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
Township of Washington
Local Government
Nearby Dams
Lakeland Dam
Camden, NJ
Significant Hazard 14 ftWedgwood Country Club Dam
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Significant Hazard 20 ftBlackwood Lake Dam
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Significant Hazard 14 ftBells Lake Dam
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Significant Hazard 22 ftBig Lebanon Lake Dam
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Significant Hazard 13 ftAlmonesson Lake Dam
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Significant Hazard 24 ftLaurel Springs Dam
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Low Hazard 30 ftFrequently Asked Questions
What is the hazard classification of Grenloch Lake Dam?
Grenloch 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 Grenloch Lake Dam?
Grenloch Lake Dam is owned by Township of Washington (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Grenloch Lake Dam built?
Grenloch Lake Dam was completed in 1907, making it 119 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 Grenloch Lake Dam?
Grenloch Lake Dam serves the following purposes: Recreation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Grenloch Lake Dam?
Grenloch Lake Dam has a dam height of 21 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 Grenloch Lake Dam last inspected?
Grenloch Lake Dam was last inspected on March 4, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.