Darvin Eason Lake Dam Reservoir Report

Last Updated: December 5, 2025

Darvin Eason Lake Dam, located in Cook, Georgia, is a private earth dam primarily used for irrigation purposes.


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Summary

Designed by Hal Simpson from USDA-NRCS, this dam stands at a height of 27 feet with a hydraulic height of 25 feet and a length of 1375 feet. With a storage capacity of 341 acre-feet, it serves as a crucial water resource for the surrounding area, providing normal storage of 215 acre-feet and covering a surface area of 22 acres.

Despite being unlisted by state agencies, Darvin Eason Lake Dam is inspected regularly, with the last assessment conducted in April 2016. Classified as having a low hazard potential and a moderate risk level, this dam has uncontrolled spillways and outlet gates. Its risk management measures, condition assessment, and emergency action plan status are not rated or updated, indicating a need for further evaluation and preparedness in case of emergencies. As a key infrastructure in the area, the dam's maintenance and monitoring are essential for water resource and climate enthusiasts to ensure its safety and functionality.

Dam Length

1375

Dam Height

27

River Or Stream

unknown

Primary Dam Type

Earth

Surface Area

22

Hydraulic Height

25

Nid Storage

341

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

27
       
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.