Hailesboro Mill #6 Dam Reservoir Report
Last Updated: December 18, 2025
Hailesboro Mill #6 Dam, located in Hailesboro, New York, stands as a vital structure along the Oswegatchie River for hydroelectric purposes.
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Summary
This concrete dam, standing at a height of 14 feet and with a length of 250 feet, plays a crucial role in generating power while also providing storage capacity of 37 acre-feet. The dam's spillway, with a width of 264 feet, ensures effective water management during high flow events.
Managed by a private entity, this dam is regulated by the New York State Department of Environmental Conservation, reflecting a commitment to safety and environmental compliance. With a significant hazard potential and a moderate risk assessment, ongoing inspections are crucial to ensuring the dam's integrity and functionality. Despite not being rated for condition assessment, the dam's operation is subject to frequent inspections to mitigate any potential risks.
For water resource and climate enthusiasts, Hailesboro Mill #6 Dam represents a fascinating intersection of technology, infrastructure, and natural resources. Its importance in harnessing clean energy from flowing water underscores the critical role of sustainable hydroelectric power in a changing climate landscape. As efforts continue to enhance safety measures and risk management, this dam serves as a reminder of the delicate balance between human development and environmental stewardship in water resource management.
Dam Length |
250 |
Dam Height |
14 |
River Or Stream |
OSWEGATCHIE RIVER |
Primary Dam Type |
Concrete |
Surface Area |
4 |
Drainage Area |
650 |
Nid Storage |
37 |
Hazard Potential |
Significant |
Nid Height |
14 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Hailesboro Mill #6 Dam
Johnstown Street Gouverneur