Sesqui Dam Reservoir Report

Last Updated: December 14, 2025

Sesqui Dam, located in Richland, South Carolina, stands as a vital recreational water resource within the region.


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Summary

Built in 1937, this earth dam spans 984 feet in length and reaches a height of 14 feet, with a storage capacity of 322 acre-feet. Managed by the state regulatory agency, SC DHEC, the dam is inspected regularly to ensure its fair condition and high hazard potential are properly monitored.

The primary purpose of Sesqui Dam is recreation, offering a serene environment for visitors to enjoy activities such as fishing, boating, and picnicking. Situated on Jackson Creek, the dam's reservoir covers 27 acres and provides a maximum storage capacity of 322 acre-feet. Despite its age, Sesqui Dam continues to be a popular destination for water and climate enthusiasts seeking outdoor adventures in the heart of South Carolina.

As a key feature within the Savannah District, Sesqui Dam plays a crucial role in providing water-based recreational opportunities for the local community. With its stone core and soil foundation, the dam exemplifies a resilient engineering design that has stood the test of time. And with a commitment to regular inspections and maintenance, Sesqui Dam remains a safe and enjoyable destination for all who appreciate the beauty and importance of water resources in the face of changing climate conditions.

Year Completed

1937

Dam Length

984

Dam Height

14

River Or Stream

JACKSON CREEK

Primary Dam Type

Earth

Surface Area

27

Nid Storage

322

Hazard Potential

High

Foundations

Soil

Nid Height

14
       
Seasonal Comparison

Weather Forecast

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.