Queens Lake Dam Reservoir Report

Last Updated: December 4, 2025

Queens Lake Dam, located in Smyrna, Georgia, was completed in 1955 and stands at a height of 26 feet, with a length of 485 feet.


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Summary

This private earth dam, designed by SCS, serves primarily for recreational purposes along Queen Branch. With a storage capacity of 358 acre-feet and a drainage area of 1400 acres, the dam poses a moderate risk due to its undetermined hazard potential and lack of recent condition assessment.

Managed by the Natural Resources Conservation Service, Queens Lake Dam features an uncontrolled spillway and outlet gates. Despite not being regulated or inspected by the state, the dam remains an important asset for water resource and climate enthusiasts in the Cobb County area. While its risk level is moderate, there are no current risk management measures in place, highlighting the need for continued monitoring and maintenance to ensure the safety and functionality of the dam for recreational and environmental purposes.

Year Completed

1955

Dam Length

485

Dam Height

26

River Or Stream

QUEEN BRANCH

Primary Dam Type

Earth

Drainage Area

1400

Nid Storage

358

Outlet Gates

Uncontrolled

Hazard Potential

Undetermined

Foundations

Unlisted/Unknown

Nid Height

26
       
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.