Haynes Estate Lake Dam #1 Reservoir Report

Last Updated: December 5, 2025

Haynes Estate Lake Dam #1, located in Clemmons, North Carolina, is a privately owned structure regulated by the NC Department of Environmental Quality's Dam Safety Program.


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Summary

This earth dam, standing at a hydraulic height of 31.5 feet and a structural height of 32 feet, primarily serves a recreational purpose, offering a serene oasis for water resource and climate enthusiasts to enjoy. With a normal storage capacity of 11 acre-feet and a maximum storage of 35 acre-feet, this dam on Johnson Creek-Tr provides a surface area of 4 acres within its 269-foot length.

Despite its fair condition assessment as of November 2019, Haynes Estate Lake Dam #1 has a high hazard potential, highlighting the importance of regular inspections to ensure its structural integrity and the safety of surrounding communities. The dam's emergency action plan status and risk management measures are currently undisclosed, emphasizing the need for ongoing monitoring and preparedness. As water resource and climate enthusiasts continue to appreciate the recreational benefits of this dam, it is essential for responsible ownership and regulatory agencies to prioritize maintenance and safety protocols to mitigate potential risks.

Dam Length

269

River Or Stream

Johnson Creek-Tr

Primary Dam Type

Earth

Surface Area

4

Hydraulic Height

31.5

Drainage Area

82

Nid Storage

35

Structural Height

32

Hazard Potential

High

Nid Height

32
       
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.