Upper Keswick Dam
Key Takeaway
Upper Keswick Dam is classified as significant hazard in New Jersey. It was completed in 1898 and is 128 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 12 ft (taller than 31.2% in NJ) |
| Dam Length | 296 ft |
| Dam Type | Earth |
| Normal Storage | 54 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 9 sq mi |
| Max Discharge | 486 cfs |
| Year Completed | 1898 (128 years old) |
| NID ID | NJ00047 |
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
America's Keswick
Private
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What is the hazard classification of Upper Keswick Dam?
Upper Keswick 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 Upper Keswick Dam?
Upper Keswick Dam is owned by America's Keswick (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Upper Keswick Dam built?
Upper Keswick Dam was completed in 1898, making it 128 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 Upper Keswick Dam?
Upper Keswick 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 Upper Keswick Dam?
Upper Keswick Dam has a dam height of 12 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 Upper Keswick Dam last inspected?
Upper Keswick Dam was last inspected on September 29, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.