Arrowhead Lakes Dam Reservoir Report

Last Updated: December 5, 2025

Arrowhead Lakes Dam, located in Aiken, South Carolina, was completed in 1958 and stands at 31 feet tall with a length of 450 feet.


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Summary

This private dam is primarily used for recreation purposes and holds a storage capacity of 128 acre-feet, with a normal storage level of 88 acre-feet. Situated on the TR-Little Horse Creek, the dam is regulated by the South Carolina Department of Health and Environmental Control (DHEC) and undergoes regular inspections to ensure its fair condition and low hazard potential.

Despite its low hazard potential, Arrowhead Lakes Dam plays a crucial role in providing recreational opportunities for the community while also serving as a vital structure for water resource management. The dam's Earth core and Buttress design contribute to its stability, with its main purpose being to maintain the surface area of 10 acres and prevent potential flooding in the area. The dam's location within the Charleston District adds to its significance, as it is a key element in the local water infrastructure and contributes to the overall environmental health of the region.

As a private dam with state regulation and oversight, Arrowhead Lakes Dam stands as a testament to responsible water management and infrastructure maintenance. With its last inspection in 2017 revealing a fair condition, the dam continues to serve its purpose effectively while adhering to state guidelines and regulations. Its role in providing recreational opportunities, managing water resources, and ensuring public safety highlights the importance of dams in maintaining a balance between human needs and environmental sustainability in the face of changing climate patterns.

Year Completed

1958

Dam Length

450

Dam Height

31

River Or Stream

TR-LITTLE HORSE CREEK

Primary Dam Type

Earth

Surface Area

10

Nid Storage

128

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

31
       
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.