Mccoy Lake Dam Reservoir Report
Last Updated: December 5, 2025
McCoy Lake Dam, located in Alcorn, Mississippi, is a privately owned structure primarily used for recreational purposes.
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Summary
The dam stands at a height of 15 feet and has a storage capacity of 60 acre-feet. It is classified as an Earth dam with a Buttress core type and an uncontrolled spillway. The dam is regulated by the Mississippi Department of Environmental Quality, with inspections and enforcement in place to ensure its safety and compliance with state regulations.
While the hazard potential of McCoy Lake Dam is currently undetermined, a moderate risk level has been assigned to it. The condition assessment of the dam is marked as "Not Rated," indicating that further evaluation may be needed to determine its overall structural health. Despite the lack of specific details on its construction year and recent inspections, McCoy Lake Dam remains an essential feature for the surrounding community, offering recreational opportunities and potential water resource benefits. As climate change continues to impact water resources, the proper management and maintenance of dams like McCoy Lake Dam are crucial to ensuring their long-term safety and effectiveness in water management.
Dam Height |
15 |
Nid Storage |
60 |
Hazard Potential |
Undetermined |
Nid Height |
15 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Hatchie River Near Walnut
|
153cfs |
Bear Creek At Bishop
|
4330cfs |
Horse Creek Near Savannah
|
87cfs |
Red Bud Creek Nr Moores Mill
|
12cfs |
Twentymile Creek Nr Guntown
|
23cfs |
Bear Creek Near Red Bay
|
454cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Mccoy Lake Dam