D.O.E. Savannah River Par Pond Lower Dam Reservoir Report
Last Updated: December 6, 2025
The D.O.E.
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Summary
Savannah River Par Pond Lower Dam, also known as Cold Dam, is a federal-owned structure located in Barnwell, South Carolina. Completed in 1959, this earth dam stands at a height of 66 feet and spans a length of 4470 feet. With a maximum storage capacity of 77,500 acre-feet and a normal storage of 60,000 acre-feet, the dam serves multiple purposes including flood control and water supply management for the Lower Three Runs-TR river or stream.
Despite being regulated by the Department of Energy, the dam has a high hazard potential and a moderate risk assessment rating. The dam features an uncontrolled spillway type with a width of 8 feet and outlet gates that are uncontrolled vertical lifts. The last inspection of the dam took place in July 2005, with an inspection frequency of once per year. While the condition assessment and emergency action preparedness information are not available, the dam's risk management measures and inundation maps are yet to be prepared.
Water resource and climate enthusiasts will find the D.O.E. Savannah River Par Pond Lower Dam an intriguing structure due to its historical significance, engineering design, and environmental impact on the surrounding area. The dam's role in managing water levels and mitigating potential flood risks in the region makes it a vital asset for the Department of Energy and the local community. Additionally, the dam's location within the Charleston District and its association with the Lower Three Runs-TR river or stream further highlight its importance in the overall water resource management system in South Carolina.
Year Completed |
1959 |
Dam Length |
4470 |
Dam Height |
66 |
River Or Stream |
LOWER THREE RUNS-TR |
Primary Dam Type |
Earth |
Surface Area |
2640 |
Hydraulic Height |
63.7 |
Drainage Area |
36 |
Nid Storage |
77500 |
Structural Height |
66 |
Outlet Gates |
Uncontrolled, Vertical Lift |
Hazard Potential |
High |
Foundations |
Rock |
Nid Height |
66 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Savannah R At Burtons Ferry Br Nr Millhaven
|
7320cfs |
Brier Creek At Millhaven
|
458cfs |
South Fork Edisto River Near Denmark
|
741cfs |
Savannah River At Augusta
|
6790cfs |
Beaverdam Creek Near Sardis
|
7cfs |
Brier Creek Near Waynesboro
|
399cfs |
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.
D.O.E. Savannah River Par Pond Lower Dam