Brant Lake Upper Dam Reservoir Report

Last Updated: December 17, 2025

Brant Lake Upper Dam, located in Brant Lake, New York, is a concrete structure completed in 1908 primarily used for recreation purposes.


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Summary

Situated on the TR-Schroon River, this dam boasts a height of 12 feet and a length of 34 feet, with a storage capacity of 41,280 acre-feet. With a surface area of 1,376 acres and a drainage area of 39.92 square miles, this dam plays a crucial role in managing water resources in the region.

Managed by local government authorities and regulated by the New York State Department of Environmental Conservation, Brant Lake Upper Dam has a significant hazard potential but is currently assessed as satisfactory in condition. The dam also features an uncontrolled spillway with a width of 15 feet and a maximum discharge capacity of 940 cubic feet per second. While the risk assessment indicates a moderate level of risk, the dam's emergency action plan is up to date, ensuring preparedness in case of any unforeseen events.

Overall, Brant Lake Upper Dam stands as a vital infrastructure piece for the community, offering both recreational opportunities and essential water resource management. With proper oversight and maintenance, this dam continues to serve its purposes effectively while mitigating potential risks associated with its operation. For water resource and climate enthusiasts, Brant Lake Upper Dam presents an intriguing case study in dam management and resilience in the face of changing environmental conditions.

Year Completed

1908

Dam Length

34

Dam Height

12

River Or Stream

TR-SCHROON RIVER

Primary Dam Type

Concrete

Surface Area

1376

Drainage Area

39.92

Nid Storage

41280

Hazard Potential

Significant

Nid Height

12
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.