Holley Waste Weir Dam
Key Takeaway
Holley Waste Weir Dam is classified as low hazard in New York. It was completed in 1918 and is 108 years old. Its primary use is navigation.
Physical Details
| Dam Height | 15 ft (taller than 37.1% in NY) |
| Dam Length | 93 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 | 957 cfs |
| Year Completed | 1918 (108 years old) |
| NID ID | NY17172 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
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
Nearby Dams
Brockport Waste Weir Dam
Monroe, NY
High Hazard 19 ftBrockville Waste Weir Dam
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Significant Hazard 16 ftByron Pond Dam
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Significant Hazard 10 ftAdams Basin Waste Weir Dam
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Significant Hazard 23 ftAlbion Waste Gate & Weir Dam
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Significant Hazard 26 ftChurchville Dam
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Low Hazard 10 ftFrequently Asked Questions
What is the hazard classification of Holley Waste Weir Dam?
Holley Waste Weir Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Holley Waste Weir Dam?
Holley 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 Holley Waste Weir Dam built?
Holley 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 Holley Waste Weir Dam?
Holley 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 Holley Waste Weir Dam?
Holley Waste Weir Dam has a dam height of 15 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 Holley Waste Weir Dam last inspected?
Holley Waste Weir Dam was last inspected on September 16, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.