Elmer Reservoir Report

Last Updated: December 19, 2025

Elmer, also known as Elmer Falls Dam, is a private hydroelectric facility located in Belfort, New York.


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Summary

Built in 1917, this concrete gravity dam stands at 23 feet tall and spans 263 feet in length. With a storage capacity of 345 acre-feet and a maximum discharge of 6,400 cubic feet per second, Elmer plays a crucial role in harnessing the power of the Beaver River for energy production.

Managed by the Federal Energy Regulatory Commission, Elmer is inspected regularly to ensure its structural integrity and operational efficiency. Despite its low hazard potential, the dam presents a moderate risk level, prompting the need for ongoing risk assessment and management measures. While not state-regulated, Elmer's compliance with federal guidelines and emergency preparedness protocols underscores its commitment to safety and environmental stewardship.

With its historical significance and contribution to the local energy grid, Elmer serves as a testament to the enduring value of hydroelectric infrastructure in meeting the evolving needs of water resource and climate enthusiasts. Its role in balancing energy production with environmental conservation highlights the importance of sustainable practices in the management of our natural resources.

Year Completed

1917

Dam Length

263

Dam Height

23

River Or Stream

Beaver River

Primary Dam Type

Concrete

Surface Area

34

Drainage Area

250

Nid Storage

345

Hazard Potential

Low

Foundations

Rock

Nid Height

23
       
Seasonal Comparison

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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.