Mercier Dam Reservoir Report
Nearby: Jones Lake Dam Young Lake Dam
Last Updated: December 5, 2025
Mercier Dam, located in Fannin, Georgia, serves as a crucial structure for enhancing fish and wildlife habitats in the area.
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Summary
Built in 1981 by the Natural Resources Conservation Service, the earth dam stands at a height of 27 feet and spans 250 feet in length. With a primary purpose of creating a fish and wildlife pond, the dam also supports irrigation and recreation activities in the region.
Despite its low hazard potential, Mercier Dam has a moderate risk level assigned to it, indicating the need for ongoing monitoring and management measures. The dam has a maximum storage capacity of 26 acre-feet and a normal storage capacity of 16 acre-feet, serving a drainage area of 0.05 square miles. The spillway, with a width of 20 feet, is of the uncontrolled type, allowing for controlled release of excess water during peak flow periods.
Water resource and climate enthusiasts will appreciate the role of Mercier Dam in supporting local ecosystems and recreational activities. As a private-owned structure, the dam underscores the importance of collaborative efforts between government agencies and private entities in managing water resources sustainably. With its strategic location on Tr- Little Sugar Creek, Mercier Dam stands as a testament to the balance between human needs and environmental conservation in the region.
Year Completed |
1981 |
Dam Length |
250 |
Dam Height |
27 |
River Or Stream |
Tr- Little Sugar Creek |
Primary Dam Type |
Earth |
Drainage Area |
0.05 |
Nid Storage |
26 |
Hazard Potential |
Low |
Nid Height |
27 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Ocoee River At Copperhill
|
301cfs |
Toccoa River Near Dial
|
279cfs |
Cartecay River Near Ellijay
|
181cfs |
Coosawattee River Near Ellijay
|
311cfs |
Mill Creek Near Crandall
|
11cfs |
Fausett Creek Near Talking Rock
|
19cfs |
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.
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Mercier Dam