Moss Lake Dam Reservoir Report
Last Updated: December 5, 2025
Moss Lake Dam in Alcorn, Mississippi, is a privately-owned structure regulated by the Mississippi Department of Environmental Quality.
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Summary
The dam, primarily used for recreation, stands at a height of 15 feet with a storage capacity of 58 acre-feet. It is classified as an earth dam with a buttress core type and an uncontrolled spillway.
Despite being rated as having low hazard potential and not yet assessed for condition, Moss Lake Dam poses a moderate risk (rated 3 out of 5). While it has not been modified or inspected in recent years, the dam remains in operation and meets state permitting, inspection, and enforcement requirements. With its scenic location and recreational purpose, Moss Lake Dam serves as a unique part of the water resource infrastructure in Mississippi, offering opportunities for outdoor activities and leisure for visitors.
Water resource and climate enthusiasts interested in Moss Lake Dam can appreciate its role in providing recreational opportunities while also recognizing the need for ongoing risk management and safety measures to ensure its continued function and protection of surrounding areas. As a privately-owned dam with state regulation, Moss Lake Dam highlights the importance of balancing human enjoyment with safety and environmental considerations in the management of water resources.
Dam Height |
15 |
Nid Storage |
58 |
Hazard Potential |
Low |
Nid Height |
15 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Hatchie River Near Walnut
|
153cfs |
Twentymile Creek Nr Guntown
|
23cfs |
Bear Creek At Bishop
|
4330cfs |
Red Bud Creek Nr Moores Mill
|
12cfs |
Horse Creek Near Savannah
|
87cfs |
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.
Moss Lake Dam