Eagle Reservoir Report
Last Updated: December 15, 2025
Eagle, also known as Beaver Lake Dam, is a private hydroelectric structure located in Lewis, New York.
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Summary
Constructed in 1915, this concrete gravity dam stands at a height of 22 feet and spans 365 feet in length. It serves the primary purpose of generating hydroelectric power, with a storage capacity of 668 acre-feet and a maximum discharge of 7400 cubic feet per second.
Managed by the Federal Energy Regulatory Commission, Eagle Dam has a controlled spillway with a width of 185 feet and a low hazard potential. Despite its age, the dam's condition assessment is currently not available, highlighting the need for regular inspections and maintenance. The risk assessment for this structure is classified as very high, emphasizing the importance of implementing effective risk management measures to ensure its safety and reliability for the surrounding community.
Overall, Eagle Dam plays a crucial role in water resource management and renewable energy production in the region. As a significant contributor to the local economy and environment, it underscores the importance of sustainable infrastructure development and proactive risk mitigation strategies in the face of climate change challenges.
Year Completed |
1915 |
Dam Length |
365 |
Dam Height |
22 |
River Or Stream |
Beaver River |
Primary Dam Type |
Concrete |
Surface Area |
138 |
Drainage Area |
224 |
Nid Storage |
668 |
Outlet Gates |
Slide (sluice gate) - 1 |
Hazard Potential |
Low |
Foundations |
Rock |
Nid Height |
22 |
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.
Eagle
Stillwater Reservoir Nr Beaver River Ny