South Fork River Ws Str # 31 Reservoir Report

Last Updated: December 5, 2025

South Fork River WS Str # 31, also known as South Fork Broad River W/S #31, is a state-owned dam located in Diamond Hill, Georgia.


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Summary

Built in 1962 by the Natural Resources Conservation Service, this Earth-type dam stands at a height of 42 feet and spans a length of 808 feet. Its primary purpose is flood risk reduction, serving to protect the surrounding area from potential inundation during heavy rain events.

With a storage capacity of 1178 acre-feet and a drainage area of 3089 acres, South Fork River WS Str # 31 plays a crucial role in managing water flow along Biger Creek. However, recent assessments have deemed its condition as poor, with a high hazard potential. Despite being state-regulated and inspected, the dam's maintenance and risk management measures may need to be reassessed to ensure the safety and functionality of this vital water resource infrastructure.

As a significant structure in the Savannah District, South Fork River WS Str # 31 requires ongoing attention and monitoring to address its moderate risk level. With an outdated last inspection date in 2017, stakeholders may need to prioritize updates to emergency action plans and hazard assessments to mitigate potential risks associated with this aging dam. The collaboration between state and local government agencies will be essential in safeguarding the community and environment from the impacts of a dam failure.

Year Completed

1962

Dam Length

808

Dam Height

42

River Or Stream

BIGER CREEK

Primary Dam Type

Earth

Surface Area

31

Drainage Area

3089

Nid Storage

1178

Outlet Gates

Uncontrolled

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

42
       
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.
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Area Campgrounds

Location Reservations Toilets
South Fork River WS Str # 31Pioneer 1 Preview Pioneer 1
South Fork River WS Str # 31Pioneer 2 Preview Pioneer 2
South Fork River WS Str # 31Pioneer 3 Preview Pioneer 3