Conewango Creek Site 33 Dam Reservoir Report
Last Updated: December 7, 2025
The Conewango Creek Site 33 Dam, located in Cherry Creek, New York, is a vital structure designed by the USDA NRCS for flood risk reduction along the TR-CONEWANGO CREEK.
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Summary
Completed in 1974, this earth dam stands at a height of 57 feet and spans 325 feet in length, with a storage capacity of 128 acre-feet. Despite its importance in mitigating flood hazards, the dam's condition assessment in 2019 revealed poor conditions, indicating a high hazard potential and a moderate risk level.
Managed by the NYS DEC and subject to state regulation, inspection, and enforcement, the Conewango Creek Site 33 Dam faces challenges in maintaining its structural integrity and safety. With a history of modifications unknown, the dam's last inspection in November 2020 highlighted the need for improved maintenance and risk management measures. As the dam's emergency action plan and risk assessment remain unclear, stakeholders and water resource enthusiasts are urged to monitor developments and advocate for necessary improvements to ensure public safety and environmental protection around the Conewango Creek area.
Year Completed |
1974 |
Dam Length |
325 |
Dam Height |
57 |
River Or Stream |
TR-CONEWANGO CREEK |
Primary Dam Type |
Earth |
Surface Area |
1 |
Drainage Area |
0.5 |
Nid Storage |
128 |
Hazard Potential |
High |
Nid Height |
57 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Chadakoin River At Falconer Ny
|
64cfs |
Cattaraugus Creek At Gowanda Ny
|
549cfs |
Allegheny River At Salamanca Ny
|
1620cfs |
Conewango Creek At Russell
|
866cfs |
Allegheny River Bl Conewango Creek At Warren
|
4270cfs |
Allegheny River At Kinzua Dam
|
3280cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Conewango Creek Site 33 Dam