Rast Pond Dam Reservoir Report

Last Updated: December 6, 2025

Rast Pond Dam, located in Calhoun, South Carolina, is a significant earth dam with a buttress core type primarily used for recreation purposes.


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Summary

Built in 1957, this dam stands at a height of 19 feet and has a length of 220 feet, providing a storage capacity of 96 acre-feet. Although the dam's condition is assessed as fair, it poses a significant hazard potential and is inspected every three years to ensure safety.

Situated on Rock Branch, this dam is state-regulated and falls under the jurisdiction of the South Carolina Department of Health and Environmental Control (DHEC). With a normal storage capacity of 56 acre-feet, the dam covers a surface area of 10 acres and is a popular recreational spot in the area. Despite its fair condition assessment, the dam has not been modified in recent years and does not have detailed risk assessment or management measures in place.

Managed by non-listed owners, Rast Pond Dam offers visitors a picturesque setting for outdoor activities such as fishing, boating, and picnicking. Located in a tranquil environment, this dam serves as a vital water resource for the community while also providing opportunities for leisure and relaxation amidst the natural beauty of South Carolina's landscape.

Year Completed

1957

Dam Length

220

Dam Height

19

River Or Stream

ROCK BRANCH

Surface Area

10

Nid Storage

96

Hazard Potential

Significant

Foundations

Unlisted/Unknown

Nid Height

19
       
Seasonal Comparison

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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.