Sunnyhill Lower Dam Reservoir Report
Last Updated: December 7, 2025
Sunnyhill Lower Dam, located in Kershaw, South Carolina, is a privately owned earth dam constructed in 1969 primarily for recreational purposes.
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Summary
The dam stands at a height of 6 feet and spans a length of 380 feet, with a storage capacity of 51 acre-feet. Situated on the TR-Wateree River, the dam provides a serene setting for outdoor enthusiasts to engage in activities such as fishing, boating, and picnicking across its 11-acre surface area.
Despite its recreational appeal, Sunnyhill Lower Dam poses a significant hazard potential with a poor condition assessment as of the last inspection in September 2018. The dam is regulated by the South Carolina Department of Health and Environmental Control (DHEC) and undergoes regular inspections, with an inspection frequency of 3 years. The dam's emergency action plan (EAP) was last revised in December 2010, raising concerns about its readiness in the event of a crisis.
Water resource and climate enthusiasts visiting Sunnyhill Lower Dam should be mindful of its significant hazard potential and poor condition assessment. While the dam offers a picturesque backdrop for recreational activities along the TR-Wateree River, its structural integrity and emergency preparedness merit closer attention. With ongoing regulatory oversight and periodic inspections by the state, it is essential for visitors to stay informed about the dam's risk management measures and safety guidelines to ensure a safe and enjoyable experience at this scenic water resource.
Year Completed |
1969 |
Dam Length |
380 |
Dam Height |
6 |
River Or Stream |
TR-WATEREE RIVER |
Primary Dam Type |
Earth |
Surface Area |
11 |
Nid Storage |
51 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
6 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Wateree River Nr. Camden
|
2170cfs |
Lynches River Near Bishopville
|
425cfs |
Rocky Creek At Great Falls
|
19cfs |
Black Creek Near Hartsville
|
142cfs |
Gills Creek At Columbia
|
76cfs |
Fishing Creek Below Fort Lawn
|
62cfs |
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.
Sunnyhill Lower Dam