Atlanta Country Club Lake Dam #9 Reservoir Report

Last Updated: December 5, 2025

Atlanta Country Club Lake Dam #9 is a private Earth dam located in Cobb, Georgia, with a primary purpose of recreation.


°F

°F

mph

Wind

%

Humidity

Summary

Standing at a height of 25.2 feet and with a hydraulic height of 15 feet, it provides a storage capacity of 19 acre-feet. The dam spans 240 feet in length and covers a surface area of 2.4 acres, serving a drainage area of 31 square miles.

Despite its low hazard potential, the dam has not been rated for condition assessment, and the last inspection was conducted in November 2016. With an inspection frequency of 5 years, the dam remains in a moderate risk category. While Atlanta Country Club Lake Dam #9 does not fall under state regulation, it is subject to state inspection and enforcement. The spillway type for the dam is uncontrolled, and it features uncontrolled outlet gates.

For water resource and climate enthusiasts, Atlanta Country Club Lake Dam #9 offers a glimpse into the intricate infrastructure that supports recreational activities in the region. With its unique design and moderate risk assessment, the dam presents an interesting case study for understanding the management of water resources in Georgia. As climate change continues to impact the hydrological cycle, the maintenance and monitoring of structures like this dam will be crucial in ensuring the safety and sustainability of water systems in the area.

Dam Length

240

Dam Height

25.2

River Or Stream

UNKNOWN

Primary Dam Type

Earth

Surface Area

2.4

Hydraulic Height

15

Drainage Area

31

Nid Storage

19

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

25
       
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.