Haynes Lake Dam Reservoir Report

Last Updated: December 5, 2025

Haynes Lake Dam, located in Forsyth, North Carolina, is a private dam primarily used for recreational purposes.


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Summary

This earth dam stands at a structural height of 21 feet and has a hydraulic height of 19 feet, containing a storage capacity of 30 acre-feet. The dam spans a length of 345 feet and covers a surface area of 3.6 acres, offering a picturesque setting for outdoor activities.

Managed by the North Carolina Department of Environmental Quality's Dam Safety Program, Haynes Lake Dam is subject to state regulation, permitting, inspection, and enforcement to ensure its safety and compliance with guidelines. Despite being classified with a high hazard potential, the dam is assessed to be in fair condition as of the latest inspection in February 2021. The dam has an Emergency Action Plan (EAP) in place, last revised in February 2015, to address potential risks and emergency scenarios, although details on its compliance with guidelines and risk management measures are currently unavailable.

With its location along Muddy Creek, Haynes Lake Dam presents an opportunity for water resource and climate enthusiasts to appreciate the intersection of human infrastructure and natural landscapes. As a key component of the local water management system in High Rock, this dam serves as a vital resource for both recreational enjoyment and environmental conservation efforts in the region.

Dam Length

345

River Or Stream

Muddy Creek-Tr

Primary Dam Type

Earth

Surface Area

3.6

Hydraulic Height

19

Nid Storage

30

Structural Height

21

Hazard Potential

High

Nid Height

21
       
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.