Sullivan Lake Dam Reservoir Report
Last Updated: December 6, 2025
Sullivan Lake Dam in Lowndes, Mississippi, is a privately owned structure regulated by the Mississippi Department of Environmental Quality.
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Summary
This earth dam with a buttress core stands at a height of 14 feet and has a storage capacity of 91 acre-feet, primarily serving recreational purposes. The dam is classified as having low hazard potential and a moderate risk level, though it is currently not rated for its condition.
Located within the jurisdiction of the Mobile District of the US Army Corps of Engineers, Sullivan Lake Dam features an uncontrolled spillway and no associated locks. While the dam has not been assessed for its condition, it is subject to state permitting, inspection, and enforcement. Despite the lack of recent data on its structural integrity and emergency preparedness, Sullivan Lake Dam remains a significant feature in the water resource management landscape of Mississippi, attracting water resource and climate enthusiasts interested in its design and regulatory oversight.
Dam Height |
14 |
Nid Storage |
91 |
Hazard Potential |
Low |
Nid Height |
14 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Catalpa Creek At Mayhew
|
2940cfs |
Tombigbee River At Stennis Lock And Dam
|
2610cfs |
Luxapallila Creek Nr Columbus
|
525cfs |
Noxubee River At Macon
|
147cfs |
Tombigbee River At Bevill L&D Nr Pickensville
|
1550cfs |
Noxubee River Nr Geiger
|
201cfs |
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.
Sullivan Lake Dam