Mcmullan Lake Dam Reservoir Report
Last Updated: March 9, 2026
Mcmullan Lake Dam in Newton, Mississippi, is a privately owned structure regulated by the Mississippi Department of Environmental Quality.
Summary
The dam serves primarily for recreational purposes, providing a storage capacity of 75 acre-feet of water. With a height of 10 feet and an earth core buttress design, the dam has an uncontrolled spillway type and is classified as having low hazard potential.
Located within the Vicksburg District, the dam's risk assessment is moderate, indicating a moderate level of risk associated with its operation. While the condition assessment is not rated, the dam has not undergone any recent modifications or inspections. Despite this, the dam meets state permitting, inspection, and enforcement requirements, ensuring its compliance with safety standards. Overall, Mcmullan Lake Dam provides a vital recreation resource in the area while maintaining a moderate level of risk management.
°F
°F
mph
Wind
%
Humidity
15-Day Weather Outlook
Dam Height |
10 |
Nid Storage |
75 |
Hazard Potential |
Low |
Nid Height |
10 |
Seasonal Comparison
5-Day Hourly Forecast Detail
Nearby Streamflow Levels
Chunky River Nr Chunky
|
1290cfs |
South Canal Tuscolameta Creek Nr Walnut Grove
|
8cfs |
Tuscolameta Creek At Walnut Grove
|
1680cfs |
Okatibbee Creek At Arundel
|
414cfs |
Chickasawhay River At Enterprise
|
2260cfs |
Pearl River At Edinburg
|
672cfs |
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.
Mcmullan Lake Dam