Talcville Reservoir Report
Nearby: Hollow Dam Emeryville
Last Updated: December 18, 2025
Talcville is a hydroelectric dam located in Emeryville, New York, along the East Branch Oswegatchie River.
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Summary
Completed in 1987, this gravity dam stands at a height of 13 feet and has a length of 107 feet, with a storage capacity of 250 acre-feet. The dam serves as a vital water resource infrastructure for the region, providing hydroelectric power and regulating water flow for the surrounding area.
Managed by the Federal Energy Regulatory Commission, Talcville is state-regulated and undergoes regular inspections to ensure its safety and functionality. With a low hazard potential and moderate risk assessment, the dam is equipped with an uncontrolled spillway with a width of 80 feet. Despite its age, Talcville continues to play a crucial role in water management and renewable energy production in St. Lawrence County, New York.
Enthusiasts of water resources and climate sustainability will find Talcville to be an intriguing example of how hydroelectric infrastructure can contribute to both energy production and water management efforts. With its concrete gravity design and multi-arch core type, the dam represents a blend of engineering ingenuity and environmental stewardship. As climate change continues to impact water resources, Talcville stands as a resilient structure that helps mitigate risks and ensure the sustainable utilization of water in the region.
Year Completed |
1987 |
Dam Length |
107 |
Dam Height |
13 |
River Or Stream |
East Branch Oswegatchie River |
Primary Dam Type |
Gravity |
Surface Area |
36 |
Drainage Area |
309 |
Nid Storage |
250 |
Hazard Potential |
Low |
Foundations |
Rock |
Nid Height |
13 |
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.
Talcville
Oswegatchie River