Old Still Dam Reservoir Report
Last Updated: December 13, 2025
Old Still Dam, located in Richland, South Carolina, is a privately owned structure regulated by the South Carolina Department of Health and Environmental Control.
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Summary
This buttress-type dam stands at a height of 16.1 feet and spans 375 feet along the TR-Jackson Creek. With a storage capacity of 33 acre-feet and a surface area of 4.3 acres, this dam plays a crucial role in water resource management in the region.
Despite its importance, Old Still Dam has been assessed as having a high hazard potential and unsatisfactory condition as of the last inspection in March 2017. The dam's emergency action plan was last revised in June 2019, indicating ongoing efforts to improve safety measures. With a moderate risk assessment score of 3, there is a need for continued monitoring and risk management measures to ensure the dam's structural integrity and the safety of surrounding communities.
The presence of Old Still Dam highlights the intricate relationship between water resources, climate, and infrastructure. As climate change continues to impact the frequency and intensity of extreme weather events, the maintenance and regulation of dams like Old Still become even more critical in safeguarding against potential risks and ensuring sustainable water management practices for the future.
Dam Length |
375 |
Dam Height |
16.1 |
River Or Stream |
TR-JACKSON CREEK |
Surface Area |
4.3 |
Nid Storage |
33 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
16 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Gills Creek At Columbia
|
37cfs |
Smith Branch At North Main St At Columbia
|
3cfs |
Congaree River At Columbia
|
3010cfs |
Saluda River Near Columbia
|
907cfs |
Wateree River Nr. Camden
|
1530cfs |
Saluda River Below Lk Murray Dam Nr Columbia
|
790cfs |
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.
Old Still Dam