East Spring Lake Dam #1 Reservoir Report

Last Updated: December 5, 2025

East Spring Lake Dam #1 is a privately owned recreational dam located in Cobb County, Georgia.


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Summary

Built by J. Thacker and Associates, this earth dam stands at a height of 17 feet and stretches 576 feet in length, providing a storage capacity of 52 acre-feet. With a primary purpose of recreation, the dam offers a surface area of 6 acres and a normal storage of 28.5 acre-feet.

Despite being unregulated by the state, East Spring Lake Dam #1 has a low hazard potential and a moderate risk assessment rating. The dam features an uncontrolled spillway and outlet gates, making it a relatively simple structure in terms of hydraulic design. While the condition assessment is currently listed as "Not Rated," the dam poses minimal risk to downstream areas and is not considered a significant threat in terms of potential failures.

For water resource and climate enthusiasts, East Spring Lake Dam #1 serves as a fascinating example of a small-scale recreational dam that provides both leisure opportunities and a modest water storage capacity. Located in a picturesque setting in Georgia, this dam offers a glimpse into the diverse range of dam structures across the United States and the varying levels of regulatory oversight they may be subject to. As efforts continue to assess and manage the risks associated with dams nationwide, East Spring Lake Dam #1 stands as a testament to the importance of balancing recreational benefits with safety considerations in our water infrastructure systems.

Dam Length

576

Dam Height

17

Primary Dam Type

Earth

Surface Area

6

Drainage Area

875

Nid Storage

52

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

17
       
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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.