Medlock Lake Dam Reservoir Report

Last Updated: December 5, 2025

Medlock Lake Dam, located in Norcross, Georgia, is a private structure primarily used for recreation.


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Summary

Built by Walden, Asshworth & Associates, Inc., this Earth-type dam stands at a height of 14.1 feet and has a storage capacity of 86 acre-feet. Despite being unregulated by the state, the dam is deemed to have low hazard potential and moderate risk, making it a relatively safe structure.

Although the exact year of completion and other details are not provided in the data, Medlock Lake Dam's purpose for recreation and its serene location within Fulton County, Georgia, make it an attractive spot for water resource and climate enthusiasts. The dam's uncontrolled spillway and outlet gates, along with its low hazard potential, contribute to its overall safety. With its moderate risk assessment, visitors can enjoy the recreational offerings of Medlock Lake Dam while appreciating its engineering design.

While the dam may not be actively monitored by state agencies, its design and purpose make it a valuable asset for the local community. The dam's structural integrity, combined with its tranquil surroundings, provide a unique opportunity for outdoor enthusiasts to enjoy the beauty of water resources in Georgia. As a privately-owned structure, Medlock Lake Dam represents a harmonious blend of human engineering and natural landscapes, making it a captivating destination for those interested in water resource management and climate conservation.

Dam Height

14.1

River Or Stream

Unknown

Primary Dam Type

Earth

Nid Storage

86

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Unlisted/Unknown

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.