Twelve Mile Creek Wcd Dam 8 Reservoir Report

Last Updated: December 6, 2025

Twelve Mile Creek WCD Dam 8, located in Pickens, South Carolina, is a vital structure designed by USDA NRCS to provide flood risk reduction along the TR-NORTH FORK TWELVEMILE CREEK.


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Summary

Completed in 1956, this earth-type dam stands at a height of 44 feet and stretches 910 feet in length, with a storage capacity of 207 acre-feet. Despite its age, the dam is in fair condition as of the last inspection in March 2020, with a high hazard potential due to its location.

Managed by the local government, Twelve Mile Creek WCD Dam 8 is regulated by the South Carolina Department of Health and Environmental Control (SC DHEC), ensuring proper permitting, inspection, and enforcement measures are in place. With a very high risk assessment rating of 1, the dam is closely monitored for any potential risks or issues that may arise. While the dam serves a primary purpose of flood risk reduction, its controlled spillway and uncontrolled outlet gates play crucial roles in managing water flow during periods of heavy rainfall.

Overall, Twelve Mile Creek WCD Dam 8 serves as a key infrastructure for protecting the surrounding area from flooding, showcasing the importance of proper dam management and maintenance in safeguarding water resources and mitigating climate-related risks. Its location, design, and regulatory framework highlight the collaborative efforts between government agencies and the community to ensure the safety and resilience of the dam for years to come.

Year Completed

1956

Dam Length

910

Dam Height

44

River Or Stream

TR-NORTH FORK TWELVEMILE CREEK

Primary Dam Type

Earth

Surface Area

4

Nid Storage

207

Outlet Gates

Uncontrolled

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

44
       
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.