Cash Lake Dam Reservoir Report

Last Updated: December 5, 2025

Cash Lake Dam, located in Banks, Georgia, is a privately owned earth dam primarily used for recreational purposes.


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Summary

Standing at a height of 23 feet with a hydraulic height of 20 feet, this dam boasts a storage capacity of 89 acre-feet and covers a surface area of 6 acres. Despite being unlisted in terms of foundations, this buttress-core dam has a low hazard potential and is considered to have a moderate risk level, with a risk assessment rating of 3.

The dam, situated within the Savannah District of the US Army Corps of Engineers, has not been inspected since July 1989 and is currently not rated in terms of condition assessment. Although it has uncontrolled spillways and outlet gates, the dam has not undergone any modifications in recent years. With the risk of inundation being moderate, the dam's emergency action plan status is unclear, and it lacks updated information on emergency contacts and risk management measures. Overall, Cash Lake Dam presents an intriguing case study for water resource and climate enthusiasts, highlighting the importance of ongoing maintenance and monitoring to ensure the safety and sustainability of such structures in the face of changing environmental conditions.

Dam Length

308

Dam Height

23

River Or Stream

UNKNOWN

Primary Dam Type

Earth

Surface Area

6

Hydraulic Height

20

Nid Storage

89

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

23
       
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.