Thomas "B" Lake Dam Reservoir Report
Nearby: Thomas Lake Dam R. R. Walker Lake Dam
Last Updated: December 13, 2025
Thomas "B" Lake Dam, located in Roopville, Georgia, is a private earth dam primarily used for recreation.
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Summary
Standing at 16.6 feet high with a hydraulic height of 13.5 feet, the dam boasts a storage capacity of 105 acre-feet and a surface area of 12.8 acres. Although the dam is uncontrolled and has a low hazard potential, it is still subject to regular state inspections to ensure its safety and structural integrity.
The dam, completed in an unknown year, is associated with no other structures and is not regulated by the state. Despite its moderate risk assessment rating of 3, the dam currently holds a "Not Rated" condition assessment and lacks an Emergency Action Plan (EAP). With A. Drew Ferguson IV representing the area in Congress, the dam's risk management measures and inundation maps remain to be prepared, emphasizing the need for continued monitoring and maintenance to ensure the safety of the surrounding community and the preservation of the water resource for future generations.
Water resource and climate enthusiasts will find Thomas "B" Lake Dam to be an intriguing structure in the Georgia landscape. Its recreational purpose and uncontrolled spillway type add to its unique characteristics, while its location in Carroll County presents an opportunity for further exploration and study. As efforts to mitigate potential risks and enhance emergency preparedness continue, the dam serves as a reminder of the critical role infrastructure plays in managing water resources and adapting to changing climate conditions.
Dam Length |
500 |
Dam Height |
16.6 |
River Or Stream |
UNKNOWN |
Primary Dam Type |
Earth |
Surface Area |
12.8 |
Hydraulic Height |
13.5 |
Nid Storage |
105 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
17 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
John Tanner State Park
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Chattahoochee Bend State Park
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McIntosh Reserve Park
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Thomas "B" Lake Dam