Evers Lake Dam Reservoir Report

Last Updated: December 6, 2025

Evers Lake Dam, located in Narrowsburg, Sullivan County, New York, is a privately owned Earth dam completed in 1965 for recreational purposes.


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Summary

The dam stands at a height of 14 feet and has a length of 560 feet, creating a reservoir with a storage capacity of 55 acre-feet. The dam is situated on the TR-Ten Mile River, with a drainage area of 0.84 square miles and a surface area of 7 acres.

Despite being classified with a low hazard potential and a moderate risk assessment, Evers Lake Dam is regulated, permitted, inspected, and enforced by the New York State Department of Environmental Conservation (NYS DEC). The dam's spillway, an uncontrolled type, has a width of 16 feet, and the structure is not currently rated for its condition. The last inspection was conducted in October 1992, highlighting the need for updated assessments and emergency preparedness plans.

For water resource and climate enthusiasts, Evers Lake Dam serves as a significant recreational feature in the area, providing opportunities for outdoor activities and water-based recreation. While the dam's risk assessment is moderate, ongoing monitoring and maintenance are essential to ensure the safety and functionality of this important water infrastructure. As climate change impacts continue to affect water resources, understanding and managing the risks associated with dams like Evers Lake Dam is crucial for long-term resilience and sustainability.

Year Completed

1965

Dam Length

560

Dam Height

14

River Or Stream

TR-TEN MILE RIVER

Primary Dam Type

Earth

Surface Area

7

Drainage Area

0.84

Nid Storage

55

Hazard Potential

Low

Nid Height

14
       
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.