Phillips Lake Dam Reservoir Report

Last Updated: December 5, 2025

Phillips Lake Dam in Decatur, Georgia, is a privately owned Earth dam that was completed in 1994 for the primary purpose of recreation.


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Summary

With a height of 26.5 feet and a hydraulic height of 26.1 feet, the dam holds a storage capacity of 226.4 acre-feet, making it an essential water resource for the area. The dam also features uncontrolled spillways and outlet gates, with a low hazard potential and a moderate risk assessment rating.

Located in the Savannah District, Phillips Lake Dam is a picturesque spot for water and climate enthusiasts to enjoy outdoor activities. The dam's condition assessment is currently "Not Rated," with the last inspection taking place in April 2008. While the dam is not state-regulated, it undergoes regular inspections and maintenance to ensure its structural integrity and safety. With its beautiful surroundings and recreational opportunities, Phillips Lake Dam is a valuable asset for the community and a key feature for water resource and climate enthusiasts to explore.

Year Completed

1994

Dam Length

555

Dam Height

26.5

Primary Dam Type

Earth

Surface Area

15

Hydraulic Height

26.1

Nid Storage

226.4

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

27
       
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.