Plant Wansley Main Storage Lake Dam Reservoir Report
Last Updated: December 15, 2025
Located in Carroll, Georgia, the Plant Wansley Main Storage Lake Dam is a vital structure designed for water supply purposes.
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Summary
Completed in 1975, this earth dam stands at an impressive height of 121 feet and spans a length of 15,840 feet, with a storage capacity of 46,460 acre-feet. The dam is situated on Yellow Dirt Creek and is regulated by the GA-SAFE DAMS PROGRAM, ensuring its safety and compliance with state regulations.
With a hazard potential classified as high but a satisfactory condition assessment, the Plant Wansley Main Storage Lake Dam is closely monitored through regular inspections, with the last one conducted in February 2020. Despite the moderate risk assessment, measures are in place to manage any potential risks effectively. The dam features uncontrolled spillways and outlet gates, emphasizing the importance of proper maintenance and emergency preparedness to mitigate any unforeseen events that could impact its integrity and the surrounding environment. Water resource and climate enthusiasts can appreciate the critical role this dam plays in ensuring a reliable water supply for the region.
Year Completed |
1975 |
Dam Length |
15840 |
Dam Height |
121 |
River Or Stream |
YELLOW DIRT CREEK |
Primary Dam Type |
Earth |
Surface Area |
606 |
Nid Storage |
46460 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
121 |
Seasonal Comparison
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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.
Plant Wansley Main Storage Lake Dam