Clarence Winter Lake Dam Reservoir Report

Last Updated: December 6, 2025

Clarence Winter Lake Dam, located in Clarksburg, New York, stands as a private earth dam built in 1971 primarily for recreational purposes.


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Summary

With a height of 27 feet and a length of 630 feet, this dam impounds Jennings Creek, creating a surface area of 49 acres and a maximum storage capacity of 363 acre-feet. Despite its low hazard potential, the dam has a moderate risk rating of 3, with a spillway type classified as uncontrolled and a maximum discharge capacity of 2120 cubic feet per second.

State-regulated by the New York State Department of Environmental Conservation (NYS DEC), Clarence Winter Lake Dam undergoes regular inspections and enforcement to ensure its structural integrity and safety. While its condition assessment is currently not rated, the dam's emergency action plan status and risk management measures remain unspecified. With its picturesque surroundings and recreational opportunities, this dam serves as a significant part of the local water resource and climate landscape, attracting enthusiasts and wildlife alike to its waters.

As a vital feature of the Erie County landscape, Clarence Winter Lake Dam symbolizes the delicate balance between human recreation and environmental stewardship. With its moderate risk rating and low hazard potential, the dam continues to provide a safe and enjoyable environment for visitors to appreciate the beauty of Jennings Creek and its surrounding natural habitat. Whether for fishing, boating, or simply enjoying the serenity of the water, this dam stands as a testament to the importance of sustainable water resource management in the face of a changing climate.

Year Completed

1971

Dam Length

630

Dam Height

27

River Or Stream

JENNINGS CREEK

Primary Dam Type

Earth

Surface Area

49

Drainage Area

1.84

Nid Storage

363

Hazard Potential

Low

Nid Height

27
       
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.