Griffin Lake Dam Reservoir Report

Last Updated: December 5, 2025

Griffin Lake Dam, located in Dooly, Georgia, is a private earth dam primarily used for recreation.


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Summary

Designed by Graylen Hall, this dam stands at 21 feet high with a hydraulic height of 19.6 feet. It has a length of 726 feet and a maximum storage capacity of 369.4 acre-feet. The dam's spillway is uncontrolled, and it has an uncontrolled outlet gate.

Despite being classified as having a low hazard potential, Griffin Lake Dam is subject to regular inspections, with the last one conducted in March 2017 and scheduled for every five years. The risk assessment for this dam is moderate, with a rating of 3 out of 5. While the dam's condition is not currently rated, it is important to note that proper risk management measures and emergency action plans are crucial for ensuring the safety and integrity of this structure in the face of potential climate-related challenges.

Overall, Griffin Lake Dam serves as a valuable recreational resource in the area, offering opportunities for outdoor activities such as fishing, boating, and wildlife viewing. As water resource and climate enthusiasts, it is essential to monitor and assess the condition of dams like Griffin Lake to maintain their safety and functionality in the face of changing environmental conditions.

Dam Length

726

Dam Height

21

River Or Stream

Unknown

Primary Dam Type

Earth

Surface Area

75

Hydraulic Height

19.6

Nid Storage

369.4

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

21
       
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.