Greenbrier Farm Lake Dam Reservoir Report
Last Updated: December 14, 2025
Greenbrier Farm Lake Dam, located in Oconee, Georgia, is a private earth dam that spans across Greenbrier Creek.
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Summary
Standing at a height of 22 feet, this dam has a storage capacity of 640 acre-feet and covers an area of 80 acres. The dam is primarily used for water resource management and recreational purposes, with a normal storage capacity of 480 acre-feet.
Despite being a privately owned structure, Greenbrier Farm Lake Dam falls under the jurisdiction of the state of Georgia and is subject to regular inspections for safety and maintenance. The dam is designed with an uncontrolled spillway type and outlet gates, with a hazard potential that is currently classified as undetermined. Risk assessment has determined the dam to have a moderate level of risk (3), emphasizing the importance of ongoing monitoring and management measures to ensure its structural integrity and the safety of surrounding areas.
The last inspection of Greenbrier Farm Lake Dam took place in September 2013, with a recommended inspection frequency of every 5 years. While the dam's condition assessment is currently marked as "Not Rated," it is crucial for authorities and stakeholders to prioritize the implementation of an Emergency Action Plan (EAP) and risk management measures to mitigate potential hazards and safeguard the dam and its surroundings from any unforeseen emergencies.
Dam Height |
22 |
River Or Stream |
GREENBRIER CREEK |
Primary Dam Type |
Earth |
Surface Area |
80 |
Nid Storage |
640 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Undetermined |
Foundations |
Unlisted/Unknown |
Nid Height |
22 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Apalachee River Near Bostwick
|
111cfs |
Oconee River Near Penfield
|
503cfs |
Middle Oconee River Near Athens
|
213cfs |
North Oconee River At College St
|
118cfs |
Middle Oconee River Near Arcade
|
189cfs |
Alcovy River Above Covington
|
96cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Greenbrier Farm Lake Dam