J. Strom Thurmond Dam Reservoir Report

Last Updated: December 5, 2025

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Summary

Strom Thurmond Dam, also known as J. Strom Thurmond Lake, is a concrete dam located on the Savannah River in Columbia, Georgia. Built in 1954 by the US Army Corps of Engineers, this dam serves multiple purposes including hydroelectric power generation, flood risk reduction, recreation, and water supply. It stands at a height of 124 feet and has a structural height of 200 feet, with a maximum storage capacity of 3,820,000 acre-feet and a surface area of 71,000 acres.

The dam plays a crucial role in reducing the risk of flooding to downstream communities, particularly in the city of Augusta, Georgia. While there is a slight chance of a breach during high lake levels or significant earthquake events, the dam is well-maintained and has historically performed well with minimal issues. To mitigate potential risks, the US Army Corps of Engineers continuously implements risk management measures, such as updating the Emergency Action Plan, conducting emergency exercises, and performing regular inspections and maintenance on the dam. Additionally, the operations plan for Thurmond Dam includes stepped spillway releases during major flood events to prevent dangerous flooding downstream.

In conclusion, J. Strom Thurmond Dam is a vital infrastructure that not only provides hydroelectric power and water resources but also plays a crucial role in protecting downstream communities from the risk of flooding. With its well-maintained structure and comprehensive risk management measures in place, the dam continues to serve as a reliable and safe asset for the region.

Year Completed

1954

Dam Length

5680

Dam Height

124

River Or Stream

SAVANNAH RIVER

Primary Dam Type

Concrete

Surface Area

71000

Hydraulic Height

170

Drainage Area

6144

Nid Storage

3820000

Structural Height

200

Outlet Gates

Tainter (radial) - 0

Hazard Potential

High

Foundations

Rock

Nid Height

200
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.