Mckay Lake Dam Reservoir Report

Last Updated: December 6, 2025

Mckay Lake Dam, located in Attala, Mississippi, is a privately-owned structure primarily used for recreation.


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Summary

This earth dam with a buttress core stands at a height of 17 feet and has a storage capacity of 64 acre-feet. While the dam is not currently rated for its condition, its hazard potential is considered low, with a moderate risk assessment score of 3.

Managed by the Mississippi Department of Environmental Quality, the dam is state-regulated and subject to regular inspection, permitting, and enforcement. Despite its uncontrolled spillway type, Mckay Lake Dam presents a relatively low risk to the surrounding area. With its historical completion date and lack of recent modifications, the dam continues to serve its purpose in providing recreational opportunities for the local community.

Overall, Mckay Lake Dam represents a unique blend of water resource management and climate resilience in the state of Mississippi. Its presence contributes to the conservation of water resources while offering a safe and enjoyable recreational space for visitors. As a low-hazard structure with moderate risk management measures in place, the dam stands as a testament to the importance of responsible dam operation and maintenance in mitigating potential environmental risks.

Dam Height

17

Nid Storage

64

Hazard Potential

Low

Nid Height

17
       
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.