J B Green Pond Dam Reservoir Report

Last Updated: December 6, 2025

J B Green Pond Dam, also known as Green Pond Dam, is a privately owned earth dam located in Greenville, South Carolina.


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Summary

Constructed in 1964 by USDA NRCS, this dam stands at a height of 20 feet and spans 1860 feet in length, with a primary purpose of serving as a recreational facility. Situated on the TR-REEDY RIVER, this dam has a storage capacity of 92 acre-feet and a hazard potential rated as high, although its current condition is assessed as fair.

Managed by SC DHEC and subject to state regulations and inspections, J B Green Pond Dam poses a moderate risk according to recent assessments. With an uncontrolled spillway and outlet gates, this dam has a surface area of 9 acres and normal storage of 75 acre-feet. Despite its fair condition, the dam's emergency action plan and risk management measures remain unspecified, indicating potential areas for improvement in ensuring public safety and effective water resource management. For water resource and climate enthusiasts, J B Green Pond Dam offers a glimpse into the intricate balance between recreational infrastructure and environmental stewardship in the face of changing climatic conditions.

Year Completed

1964

Dam Length

1860

Dam Height

20

River Or Stream

TR-REEDY RIVER

Primary Dam Type

Earth

Surface Area

9

Nid Storage

92

Outlet Gates

Uncontrolled

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

20
       
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.