Moccasin Lake Dam Reservoir Report

Last Updated: December 5, 2025

Moccasin Lake Dam, also known as Barnett Lake Dam, is a local government-owned structure located in Winston, Georgia.


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Summary

The dam serves primarily for recreational purposes and is classified as an Earth dam with a buttress core type. Standing at a height of 24.7 feet and with a NID storage capacity of 131.4 acre-feet, the dam overlooks a surface area of 9.2 acres and has a drainage area of 405 acres.

Despite being unlisted for its foundations, Moccasin Lake Dam has been inspected for safety measures, with its last inspection conducted in May 2018. With a hazard potential rated as low and a moderate risk assessment, the dam poses a moderate risk (level 3) and has not been assigned a DSAC date. The dam's spillway type is uncontrolled, while the outlet gates are also uncontrolled. The dam has not been modified over the years, and its condition assessment is currently marked as "Not Rated."

Water resource and climate enthusiasts interested in Moccasin Lake Dam can appreciate its serene location and the recreational opportunities it offers. With a focus on safety and risk management, the dam stands as a testament to responsible stewardship of water resources in the area. Its moderate risk assessment prompts ongoing monitoring and assessment to ensure the continued safety and functionality of this essential water management structure.

Dam Length

345

Dam Height

24.7

River Or Stream

Name unknown

Primary Dam Type

Earth

Surface Area

9.2

Hydraulic Height

21.4

Drainage Area

405

Nid Storage

131.4

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.