Lucile Wannamaker Dam Reservoir Report
Nearby: St Matthews Wstwtr Dam Smoke Pond Dam
Last Updated: December 6, 2025
Lucile Wannamaker Dam, located in Calhoun, South Carolina, is a private-owned earth dam built in 1965 primarily for recreational purposes.
°F
°F
mph
Wind
%
Humidity
Summary
Standing at a height of 16 feet and stretching 700 feet in length, the dam has a maximum storage capacity of 416 acre-feet and a normal storage of 256 acre-feet. The dam overlooks the scenic Antley Spring Branch and covers a surface area of 40 acres, making it a popular spot for water resource and climate enthusiasts.
Managed by the South Carolina Department of Health and Environmental Control, the dam is regulated and inspected regularly to ensure its safety and functionality. Despite being classified as low hazard potential with fair condition assessment, the dam is under a very high risk rating (1) due to its structural characteristics and location. Emergency action plans are in place, although specific details regarding their preparation and revision dates are not provided, highlighting the importance of ongoing risk management measures.
While Lucile Wannamaker Dam offers a picturesque recreational setting, its risk assessment underscores the need for vigilant monitoring and maintenance. With its controlled spillway and state-regulated status, the dam serves as a vital structure for both leisure and safety within the Savannah District. As water resource and climate enthusiasts explore the area, they can appreciate the balance between enjoyment and risk mitigation that the dam represents in the beautiful surroundings of Calhoun, South Carolina.
Year Completed |
1965 |
Dam Length |
700 |
Dam Height |
16 |
River Or Stream |
ANTLEY SPRING BRANCH |
Primary Dam Type |
Earth |
Surface Area |
40 |
Nid Storage |
416 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
16 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
North Fork Edisto River At Orangeburg
|
950cfs |
Wateree R. Bl Eastover
|
2400cfs |
South Fork Edisto River Near Bamberg
|
906cfs |
South Fork Edisto River Near Cope
|
838cfs |
Gills Creek At Columbia
|
76cfs |
South Fork Edisto River Near Denmark
|
805cfs |
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.
Lucile Wannamaker Dam