Harwell Pond Dam Reservoir Report

Last Updated: December 5, 2025

Harwell Pond Dam, located in Yocona, Lafayette County, Mississippi, is a private recreational structure designed by the USDA NRCS and completed in 1970.


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Summary

The dam stands at a height of 22 feet and has a storage capacity of 72 acre-feet on Moore Creek. Despite its uncontrolled spillway and undetermined hazard potential, the dam is currently rated as "Not Rated" in terms of condition assessment.

Managed by the Mississippi Department of Environmental Quality, Harwell Pond Dam serves as a crucial water resource for the local community, providing recreational opportunities and enhancing the surrounding ecosystem. With its earth buttress core and soil foundation, the dam presents a moderate risk level that necessitates ongoing monitoring and risk management measures. While the dam's emergency action plan and condition assessment remain pending, its historical significance and environmental impact underscore the need for continued regulatory oversight and maintenance to ensure long-term safety and sustainability.

Year Completed

1970

Dam Height

22

River Or Stream

MOORE CREEK

Primary Dam Type

Earth

Nid Storage

72

Outlet Gates

Uncontrolled

Hazard Potential

Undetermined

Foundations

Soil

Nid Height

22
       
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.