Atlanta Reservoir Dam No. 2 Reservoir Report

Last Updated: December 14, 2025

Atlanta Reservoir Dam No.


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Summary

2, also known as Hemphill No. 2, is a significant water resource infrastructure located in Fulton, Georgia. Built in 1960 by Wiedeman & Singleton Engineers, this earth dam stands at a height of 83 feet and stretches a length of 2640 feet, providing a storage capacity of 1108 acre-feet for water supply purposes. With a surface area of 31.6 acres and a drainage area of 41.2 square miles, the dam plays a crucial role in managing water resources in the region.

The dam, regulated by the Georgia SAFE DAMS Program, is inspected regularly to ensure its structural integrity. Despite being classified as having a high hazard potential, the condition assessment of Atlanta Reservoir Dam No. 2 in 2016 deemed it to be satisfactory. The dam's emergency action plan and risk management measures are in place to mitigate any potential risks associated with its operation.

Atlanta Reservoir Dam No. 2 serves as a vital component of the water supply infrastructure in the area, providing essential storage capacity and flood control measures. With its strategic location in Atlanta and its significant contribution to managing water resources, this dam is a key asset for climate and water resource enthusiasts to study and monitor for sustainable water management practices.

Year Completed

1960

Dam Length

2640

Dam Height

83

River Or Stream

UNKNOWN

Primary Dam Type

Earth

Surface Area

31.6

Drainage Area

41.2

Nid Storage

1108

Outlet Gates

Uncontrolled

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

83
       
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.