Folly Lake Orchards Lake Dam B Reservoir Report

Last Updated: December 14, 2025

Folly Lake Orchards Lake Dam B, also known as Harrison Farms Lake Dam B, is a private irrigation dam located in McDuffie, Georgia.


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Summary

Built in 1984, this earth dam stands at a height of 23 feet and has a storage capacity of 1564 acre-feet. With a primary purpose of irrigation, the dam serves as a crucial water resource for the surrounding area, providing water for agricultural activities.

Despite being privately owned, the dam is subject to state inspection and regulation, ensuring its safety and compliance with standards. The dam has a low hazard potential and a moderate risk assessment rating, indicating a relatively stable and secure structure. The last inspection took place in May 2009, with a scheduled inspection frequency of 5 years. The dam's spillway is uncontrolled, and it is associated with no other structures.

Located within the Charleston District of the US Army Corps of Engineers, Folly Lake Orchards Lake Dam B plays a vital role in water management and conservation in the region. Its construction and maintenance reflect the importance of sustainable water resource management for agricultural purposes. With its moderate risk assessment and low hazard potential, the dam stands as a reliable and essential asset for the local community.

Year Completed

1984

Dam Height

23

River Or Stream

UNKNOWN

Primary Dam Type

Earth

Surface Area

96

Nid Storage

1564

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

23
       
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.