Terry R. Clark Farm Pond D Dam Reservoir Report

Last Updated: December 6, 2025

Located in Colquitt, Georgia, the Terry R.


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Summary

Clark Farm Pond D Dam is a privately owned earth dam primarily used for irrigation purposes. Designed by Donald Wilson, this structure stands at a height of 19.5 feet with a hydraulic height of 18.5 feet. The dam has a storage capacity of 281.8 acre-feet, with a normal storage level of 141.8 acre-feet and a surface area of 21 acres.

With a low hazard potential and a moderate risk assessment rating, this dam is considered to be in satisfactory condition, although it has not been formally rated. Despite being located in a region prone to extreme weather events, such as hurricanes and heavy rainfall, the dam has not been modified in recent years and does not have a formal Emergency Action Plan in place. While the structure is currently unregulated by the state, regular inspections are conducted every five years to ensure its safety and functionality for the surrounding agricultural operations.

Dam Length

799

Dam Height

19.5

Primary Dam Type

Earth

Surface Area

21

Hydraulic Height

18.5

Nid Storage

281.8

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

20
       
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.