Sunset Hills Lake Dam Reservoir Report

Last Updated: December 5, 2025

Sunset Hills Lake Dam, located in Rex, Georgia, is a private dam built in 1950 primarily for recreation purposes.


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Summary

Standing at a height of 24.2 feet with a maximum storage capacity of 145 acre-feet, this earth dam serves as a popular spot for outdoor activities in Clayton County. With a surface area of 8.4 acres and a drainage area of 170 square miles, Sunset Hills Lake Dam offers a tranquil retreat for water resource and climate enthusiasts seeking to enjoy the scenic beauty of the surrounding landscape.

Although the dam is classified as having a low hazard potential and a moderate risk level, it has not undergone a recent condition assessment. The last inspection was conducted in December 1999, with the dam's overall condition marked as "Not Rated." Despite the lack of recent evaluations, Sunset Hills Lake Dam continues to provide recreational opportunities for visitors, showcasing the importance of regular monitoring and maintenance to ensure the safety and longevity of water resource infrastructure. As a key feature in the community, the dam serves as a reminder of the vital role that sustainable water management plays in enhancing the quality of life for both residents and nature enthusiasts alike.

Year Completed

1950

Dam Length

435

Dam Height

24.2

River Or Stream

Unknown

Primary Dam Type

Earth

Surface Area

8.4

Hydraulic Height

21

Drainage Area

170

Nid Storage

145

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

24
       
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.