Lake George Dam Reservoir Report

Last Updated: December 6, 2025

Lake George Dam, also known as Mallard Lake Dam, is a private-owned structure located in Carrollton, Georgia.


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Summary

Built in 1968 by designer A.E. Carroll, this earth dam stands at a height of 25.1 feet and spans 237 feet in length. The main purpose of the dam is for recreation, specifically serving as a popular spot for outdoor activities such as fishing and boating.

The dam has a storage capacity of 544.2 acre-feet and a normal storage level of 207 acre-feet. It is situated on Hesterlee Creek and is under the jurisdiction of the state, with regular inspections conducted to ensure its safety. With a low hazard potential and a moderate risk assessment score of 3, Lake George Dam provides a tranquil setting for water resource and climate enthusiasts to enjoy the beauty of nature while also being mindful of the importance of dam safety and maintenance.

Although the dam is uncontrolled in terms of spillway and outlet gates, it continues to be a popular recreational destination for visitors in the Carrollton area. With its picturesque surroundings and moderate risk profile, Lake George Dam serves as a reminder of the delicate balance between human enjoyment of water resources and the need for responsible stewardship to protect our environment for future generations.

Year Completed

1968

Dam Length

237

Dam Height

25.1

River Or Stream

Hesterlee Creek

Primary Dam Type

Earth

Surface Area

23

Hydraulic Height

25

Drainage Area

1279

Nid Storage

544.2

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

25
       
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.