South River Dam #6 Reservoir Report

Last Updated: December 5, 2025

South River Dam #6, also known as Sengers Mountain Lake, is a local government-owned structure located in Augusta, Virginia.


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Summary

This earth dam stands at 56 feet high and spans 910 feet in length, with a storage capacity of 1283 acre-feet. Its primary purpose is flood risk reduction, serving to protect the surrounding area from potential inundation during heavy rainfall or storms. The dam is regulated by the Virginia Department of Conservation and Recreation, with regular inspections to ensure its integrity and safety.

Situated on Cold Springs Run, South River Dam #6 plays a crucial role in managing water resources and mitigating flood risks in the region. Despite its high hazard potential, the dam is currently in fair condition, as assessed during the last inspection in March 2021. While no major modifications or upgrades have been reported in recent years, the dam remains a key asset for flood control and recreation purposes, offering a surface area of 12 acres and a drainage area of 4.1 square miles. With its strategic location and significant storage capacity, South River Dam #6 underscores the importance of effective water resource management in safeguarding communities against natural disasters.

Dam Length

910

Dam Height

56

River Or Stream

COLD SPRINGS RUN

Primary Dam Type

Earth

Surface Area

12

Hydraulic Height

56

Drainage Area

4.1

Nid Storage

1283

Structural Height

56

Hazard Potential

High

Nid Height

56
       
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.