Middleport Waste Weir Dam
Key Takeaway
Middleport Waste Weir Dam is classified as significant hazard in New York. It was completed in 1918 and is 108 years old. Its primary use is navigation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 17 ft (taller than 46.3% in NY) |
| Dam Length | 158 ft |
| Dam Type | Concrete |
| Max Storage | 10.5K acre-ft |
| Normal Storage | 8.6K acre-ft |
| Surface Area | 890 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 915 cfs |
| Year Completed | 1918 (108 years old) |
| NID ID | NY17174 |
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
New York State Canal Corporation
State Government
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Low Hazard 11 ftFrequently Asked Questions
What is the hazard classification of Middleport Waste Weir Dam?
Middleport Waste Weir 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 Middleport Waste Weir Dam?
Middleport Waste Weir Dam is owned by New York State Canal Corporation (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Middleport Waste Weir Dam built?
Middleport Waste Weir Dam was completed in 1918, making it 108 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 Middleport Waste Weir Dam?
Middleport Waste Weir Dam serves the following purposes: Navigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Middleport Waste Weir Dam?
Middleport Waste Weir Dam has a dam height of 17 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 Middleport Waste Weir Dam last inspected?
Middleport Waste Weir Dam was last inspected on November 10, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.