Edgewood Lake Upper Dam Reservoir Report

Last Updated: December 6, 2025

Edgewood Lake Upper Dam, located in Sullivan County, New York, is a privately owned structure primarily used for recreational purposes.


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Summary

Built in 1955, this stone dam stands at a height of 19 feet and spans a length of 310 feet, creating a storage capacity of 175 acre-feet. With a normal storage level of 115 acre-feet, the dam covers a surface area of 20 acres and serves the purpose of providing recreational opportunities for visitors in the area.

Managed by the New York State Department of Environmental Conservation, Edgewood Lake Upper Dam has been deemed to have a significant hazard potential, although its condition was assessed as satisfactory as of December 2016. The dam's spillway type is uncontrolled, and it is subject to regular inspections with a frequency of four times a year. While the risk assessment for this dam is moderate, there are currently no specific risk management measures or emergency action plans in place, suggesting a potential area for improvement in terms of safety and preparedness for potential hazards.

Overall, Edgewood Lake Upper Dam offers a picturesque location for recreational activities in the Beaver Kill area. However, with its significant hazard potential and moderate risk assessment, it is important for authorities to prioritize safety measures and emergency planning to ensure the continued enjoyment of the dam while mitigating potential risks to the surrounding community and environment.

Year Completed

1955

Dam Length

310

Dam Height

19

River Or Stream

TR-BEAVER KILL

Primary Dam Type

Stone

Surface Area

20

Drainage Area

0.34

Nid Storage

175

Hazard Potential

Significant

Nid Height

19
       
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.