Lock Ridge Forest Lake Dam Reservoir Report

Last Updated: December 5, 2025

Lock Ridge Forest Lake Dam, also known as Ashley Lake Dam, is a private-owned structure located in Gwinnett, Georgia.


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Summary

Built in 1950, this earth dam stands at a height of 30 feet and spans 470 feet in length, serving primarily for recreational purposes. With a storage capacity of 120 acre-feet and a spillway type categorized as uncontrolled, the dam poses a low hazard potential and has a moderate risk assessment rating of 3.

Situated in the Savannah District under the jurisdiction of the state of Georgia, Lock Ridge Forest Lake Dam has been inspected every five years, with the last assessment conducted in June 2016. Despite its condition being labeled as "Not Rated," the dam's risk management measures remain unspecified. The dam's emergency action plan (EAP) status, inundation maps, and compliance with guidelines are also not currently documented, raising concerns about its preparedness for potential emergencies.

While the dam's functionality and recreational value are evident, the lack of comprehensive risk assessment and management information leaves room for improvement in ensuring the safety and security of the surrounding area. Water resource and climate enthusiasts may find interest in monitoring the updates and developments of Lock Ridge Forest Lake Dam to promote sustainable water management practices and enhance emergency preparedness in the region.

Year Completed

1950

Dam Length

470

Dam Height

30

River Or Stream

UNKNOWN

Primary Dam Type

Earth

Nid Storage

120

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

30
       
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.