Conewango Creek Site 3 Dam
Conewango Creek Site 3 Dam is an earth dam located in Chautauqua County, New York, built in 1978. It carries a Significant hazard potential classification and has a poor condition assessment.
About Conewango Creek Site 3 Dam
The primary purpose of Conewango Creek Site 3 Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Conewango Watershed Commission;county Of Chautauqua (local government). It impounds the Tr-clear Creek near Bates.
The dam stands 47 feet tall and stretches 510 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 389 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1978, the structure is 48 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 10/17/2022.
At 47 feet, this dam is taller than 92% of dams nationwide.
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Location
| State | New York |
| County | Chautauqua |
| Nearest City | Bates |
| River/Stream | Tr-clear Creek |
| Coordinates | 42.25167, -79.17333 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 47 ft |
| Dam Height | 47 ft |
| Dam Length | 510 ft |
| Year Completed | 1978 (48 years old) |
Storage & Hydraulics
| NID Storage | 389 acre-ft |
| Max Storage | 389 acre-ft |
| Normal Storage | 148 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 4,550 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | CONEWANGO WATERSHED COMMISSION;COUNTY OF CHAUTAUQUA |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 10/17/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NY00601 |
| Federal ID | NY00601 |
| More Info | State Dam Safety Program |