Upstream Twin Pond Dam Reservoir Report
Last Updated: December 9, 2025
Upstream Twin Pond Dam in Tattnall, Georgia, stands as a vital water resource for the state, providing crucial recreational opportunities since its completion in 1952.
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Summary
Owned by the State and standing at a height of 18 feet with a length of 585 feet, this earth dam harnesses a storage capacity of 151 acre-feet, serving as a haven for outdoor enthusiasts in the area. Although the dam is not regulated by the state, it undergoes regular inspections to ensure its structural integrity and safety.
Situated in the serene surroundings of the State Prison Environs, Upstream Twin Pond Dam offers a surface area of 17 acres, drawing visitors to its tranquil waters and picturesque landscape. Despite its low hazard potential, the dam's moderate risk assessment highlights the importance of ongoing risk management measures to safeguard its surroundings. With the support of the Savannah District and the guidance of designer DOOR, this dam continues to play a pivotal role in water resource management and climate resilience efforts in the region.
As climate change poses new challenges to water resources, the significance of structures like Upstream Twin Pond Dam becomes even more pronounced. Its historical significance, coupled with its recreational and environmental value, underscores the need for continued monitoring and maintenance to ensure the safety and sustainability of this essential water infrastructure. As enthusiasts and stakeholders alike come together to appreciate and protect this dam, its resilience in the face of evolving climate patterns stands as a testament to the importance of proactive water management practices in safeguarding our shared natural resources.
Year Completed |
1952 |
Dam Length |
585 |
Dam Height |
18 |
River Or Stream |
UNKNOWN |
Primary Dam Type |
Earth |
Surface Area |
17 |
Drainage Area |
345 |
Nid Storage |
151 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
18 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Ohoopee River Near Reidsville
|
218cfs |
Altamaha River Near Baxley
|
4930cfs |
Canoochee River Near Claxton
|
83cfs |
Ocmulgee River At Lumber City
|
2940cfs |
Oconee River Near Mount Vernon
|
1610cfs |
Altamaha River At Doctortown
|
5210cfs |
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.
Upstream Twin Pond Dam