Blackwells Mills Dam
Key Takeaway
Blackwells Mills Dam is classified as significant hazard in New Jersey. Its primary use is flood risk reduction. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 20 ft (taller than 72.4% in NJ) |
| Dam Length | 500 ft |
| Dam Type | Earth |
| Normal Storage | 10 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 1 sq mi |
| NID ID | NJ00923 |
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 Hillsborough
Local Government
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What is the hazard classification of Blackwells Mills Dam?
Blackwells Mills 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 Blackwells Mills Dam?
Blackwells Mills Dam is owned by Township of Hillsborough (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
What is the primary purpose of Blackwells Mills Dam?
Blackwells Mills Dam serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Blackwells Mills Dam?
Blackwells Mills Dam has a dam height of 20 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 Blackwells Mills Dam last inspected?
Blackwells Mills Dam was last inspected on September 21, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.