Sei Farms Dam Reservoir Report

Last Updated: December 5, 2025

Nestled in the scenic town of Mills River, North Carolina, Sei Farms Dam stands as a testament to the importance of water resource management in the region.


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Summary

Owned privately, this earth dam primarily serves the purpose of recreation, offering a serene spot for locals and visitors to enjoy the surrounding beauty. With a hydraulic height of 20 feet and a structural height of 24 feet, this dam plays a significant role in regulating the flow of water from the UT to S.Fork Mills River.

Managed by the NC Department of Environmental Quality's Dam Safety Program, Sei Farms Dam is subject to regular inspections to ensure its structural integrity and safety. With a hazard potential classified as significant, the condition assessment in 2014 deemed the dam to be satisfactory. While the dam does not have an Emergency Action Plan prepared, its role in water management and recreation in the area highlights the need for continued monitoring and maintenance to mitigate any potential risks.

Sei Farms Dam provides a vital source of recreational enjoyment and water resource management in Henderson County, North Carolina. While its primary purpose may be for recreation, the dam's significance in regulating water flow and maintaining safety underscores the importance of ongoing monitoring and maintenance. As climate enthusiasts and water resource advocates, it is crucial to recognize the role of such structures in safeguarding our natural resources and communities.

Dam Length

355

River Or Stream

UT to S.Fork Mills River (TR,H

Primary Dam Type

Earth

Surface Area

4

Hydraulic Height

20

Nid Storage

48

Structural Height

24

Hazard Potential

Significant

Nid Height

24
       
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.