Gerrard Lake Dam Reservoir Report

Last Updated: December 5, 2025

Gerrard Lake Dam, located in Alamance, North Carolina, is a private recreational dam on Rock Creek-Tr.


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Summary

Built by the USDA NRCS, this earth dam stands at a structural height of 21 feet with a hydraulic height of 18 feet. The dam has a normal storage capacity of 43 acre-feet and a maximum storage of 50 acre-feet, providing water for recreational activities in the area.

With a low hazard potential and a satisfactory condition assessment, Gerrard Lake Dam has been inspected and deemed safe, with the last inspection conducted in December 2012. The dam features an uncontrolled spillway and outlet gates, serving as a vital recreational resource in the region. Despite being privately owned, the dam is not state regulated and does not require permits or enforcement from state agencies.

Overall, Gerrard Lake Dam presents a moderate risk level (3) and is managed with appropriate risk management measures in place. While not under the jurisdiction of state regulatory agencies, the dam continues to provide valuable recreational opportunities for water resource and climate enthusiasts in Guilford, North Carolina.

Dam Length

300

River Or Stream

Rock Creek-Tr

Primary Dam Type

Earth

Surface Area

6

Hydraulic Height

18

Nid Storage

50

Structural Height

21

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Soil

Nid Height

21
       
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.