Conewango Creek Site 9a Dam
Key Takeaway
Conewango Creek Site 9a Dam is classified as high hazard in New York. It was completed in 1972 and is 54 years old. Its primary use is flood risk reduction. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 43 ft (taller than 89.9% in NY) |
| Dam Length | 1,590 ft |
| Dam Type | Earth |
| Max Storage | 964 acre-ft |
| Normal Storage | 41 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 8,200 cfs |
| Year Completed | 1972 (54 years old) |
| NID ID | NY00596 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
CHAUTAUQUA COUNTY;CONEWANGO WATERSHED COMMISSION
Local Government
Nearby Dams
Conewango Creek Site 6 Dam
Chautauqua, NY
Significant Hazard 41 ftSilver Creek Reservoir Dam
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Significant Hazard 35 ftConewango Creek Site 33 Dam
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High Hazard 57 ftSmiths Mills Reservoir Dam
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Significant Hazard 19 ftRobert Francis Farm Pond Dam
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Low Hazard 13 ftConewango Creek Site 3 Dam
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Significant Hazard 47 ftCattaraugus County Sportsmans Dam #1
Cattaraugus, NY
Low Hazard 12 ftFredonia Reservoir Dam
Chautauqua, NY
High Hazard 80 ftFrequently Asked Questions
What is the hazard classification of Conewango Creek Site 9a Dam?
Conewango Creek Site 9a Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Conewango Creek Site 9a Dam?
Conewango Creek Site 9a Dam is owned by CHAUTAUQUA COUNTY;CONEWANGO WATERSHED COMMISSION (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Conewango Creek Site 9a Dam built?
Conewango Creek Site 9a Dam was completed in 1972, making it 54 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 Conewango Creek Site 9a Dam?
Conewango Creek Site 9a 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 Conewango Creek Site 9a Dam?
Conewango Creek Site 9a Dam has a dam height of 43 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 Conewango Creek Site 9a Dam last inspected?
Conewango Creek Site 9a Dam was last inspected on November 20, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.