Woodside Dam 1 Reservoir Report

Last Updated: December 6, 2025

Woodside Dam 1, also known as Holley Lake Dam, is a private-owned structure located in Aiken, South Carolina.


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Summary

Built in 1986, this earth dam stands at a height of 31 feet and stretches over 850 feet in length, providing a storage capacity of 168 acre-feet. With its primary purpose being recreation, the dam offers a tranquil setting for enthusiasts to enjoy the surrounding area.

Managed by the South Carolina Department of Health and Environmental Control (SC DHEC), Woodside Dam 1 is regulated, inspected, and enforced by the state to ensure its safety and compliance with regulations. Despite being classified as having a high hazard potential, the dam is currently rated in fair condition. Regular inspections are conducted to assess its structural integrity and emergency action plans are in place to mitigate risks associated with its operation.

Situated along the Hollow Creek, Woodside Dam 1 not only provides recreational opportunities but also serves as a vital component in managing water resources in the region. With its picturesque surroundings and crucial role in water management, the dam stands as a testament to the importance of maintaining and monitoring our infrastructure for the benefit of both the environment and the community.

Year Completed

1986

Dam Length

850

Dam Height

31

River Or Stream

TR-HOLLOW CREEK

Primary Dam Type

Earth

Surface Area

8

Nid Storage

168

Hazard Potential

High

Foundations

Soil

Nid Height

31
       
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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.