Highland Lake Swdp Dam Reservoir Report

Last Updated: December 6, 2025

Highland Lake Swdp Dam, located in Flat Rock, North Carolina, is a private dam that serves the primary purpose of flood risk reduction along the Tributary to King's Creek.


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Summary

Constructed in 2006, this rockfill dam stands at a structural height of 21 feet and spans 102 feet in length. The dam is regulated by the NCDEQ Dam Safety Program, with regular state inspections and enforcement in place to ensure its safety and compliance with regulations.

With a hazard potential classified as high, the condition assessment of Highland Lake Swdp Dam is deemed satisfactory as of the last inspection in March 2019. Despite its age, the dam remains structurally sound and meets guidelines for emergency action plans. The surrounding community can rest assured that measures are in place to manage any potential risks associated with the dam, making it an essential piece of infrastructure for flood risk mitigation in Henderson County.

Highland Lake Swdp Dam plays a pivotal role in protecting the local area from flooding events, with a focus on ensuring the safety and security of residents and property. As a key structure in the region, the dam's design and construction reflect modern standards for dam safety, highlighting the importance of proactive maintenance and monitoring to mitigate risks associated with high hazard potential. Climate and water resource enthusiasts can appreciate the significance of Highland Lake Swdp Dam in safeguarding the community and environment from the impacts of extreme weather events.

Year Completed

2006

Dam Length

102

River Or Stream

Trib to King's Creek

Primary Dam Type

Rockfill

Structural Height

21

Hazard Potential

High

Nid Height

21
       
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.