Sumner Lake Dam Reservoir Report
Last Updated: December 5, 2025
Sumner Lake Dam, located in Colquitt, Georgia, is a privately owned earth dam primarily used for recreation purposes.
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Summary
Standing at a height of 8.7 feet with a hydraulic height of 9.2 feet, this dam has a storage capacity of 166 acre-feet and covers a surface area of 22 acres. Despite being uncontrolled, the spillway type and outlet gates are specified. The dam's hazard potential is rated as low, with a moderate risk assessment score of 3.
Although the dam's designer remains unknown, it is under state jurisdiction and has undergone inspections with a frequency of 5 years. The last inspection was conducted in February 2010. While the condition assessment is listed as "Not Rated," the risk management measures and emergency action plan status are unspecified. The dam's location along an unknown river or stream provides a serene environment for recreational activities, attracting water resource and climate enthusiasts seeking a peaceful retreat in the heart of Georgia.
Overall, Sumner Lake Dam offers a tranquil setting for outdoor enthusiasts to enjoy water-based activities in a low-hazard environment. Its moderate risk assessment score suggests a need for ongoing monitoring and maintenance to ensure the safety and integrity of the dam for future generations. For those interested in exploring Georgia's water resources and climate, Sumner Lake Dam presents an opportunity to appreciate the beauty and importance of sustainable water management practices in a recreational setting.
Dam Length |
1620 |
Dam Height |
8.7 |
River Or Stream |
UNKNOWN |
Primary Dam Type |
Earth |
Surface Area |
22 |
Hydraulic Height |
9.2 |
Nid Storage |
166 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
9 |
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.
Sumner Lake Dam