Brantingham Lake Dam Reservoir Report

Last Updated: December 14, 2025

Brantingham Lake Dam, located in Lewis, New York, was completed in 1914 and is primarily used for recreation.


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Summary

The dam is privately owned and regulated by the New York State Department of Environmental Conservation. With a height of 10 feet and a length of 144 feet, the dam holds a storage capacity of 1071 acre-feet and covers a surface area of 327 acres.

Although the dam's hazard potential is rated as low, its risk assessment is moderate, indicating a need for careful monitoring and management. The dam features an uncontrolled spillway with a width of 5 feet and is situated on the TR-Fish Creek. Despite not being inspected since 1976, the dam remains in a not rated condition assessment, highlighting the importance of regular evaluations to ensure its safety and functionality.

For water resource and climate enthusiasts, Brantingham Lake Dam presents an intriguing case study of a century-old earth dam that continues to serve its recreational purpose. The dam's location in a picturesque setting and its historical significance add to its appeal, while its risk assessment underscores the ongoing need for vigilance in maintaining and managing this essential infrastructure. As climate change impacts water resources, understanding the complexities of dam operations and safety measures becomes increasingly vital for ensuring the sustainability of our water systems.

Year Completed

1914

Dam Length

144

Dam Height

10

River Or Stream

TR-FISH CREEK

Primary Dam Type

Earth

Surface Area

327

Drainage Area

1.75

Nid Storage

1071

Hazard Potential

Low

Nid Height

10
       
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.