Cobb Dam Reservoir Report
Last Updated: December 6, 2025
Cobb Dam, located in Oktibbeha, Mississippi, is a private-owned structure managed by the Mississippi Department of Environmental Quality.
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Summary
Completed in 1994, this earth dam stands at 17 feet high and spans 660 feet in length. Its primary purpose is for recreation, offering a surface area of 21.9 acres and a storage capacity of 209 acre-feet, with a normal storage level of 113 acre-feet.
The dam, situated on the UNT of Browning Creek, has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment. Despite its moderate risk level, the dam has not undergone a formal inspection recently. With a maximum discharge capacity of 485 cubic feet per second, Cobb Dam serves as a valuable resource for both water management and recreational activities in the area. Water resource and climate enthusiasts will find Cobb Dam to be an intriguing structure that blends both functionality and environmental impact in the Mississippi landscape.
Year Completed |
1994 |
Dam Length |
660 |
Dam Height |
17 |
River Or Stream |
UNT OF BROWNING CREEK |
Primary Dam Type |
Earth |
Surface Area |
21.9 |
Hydraulic Height |
15 |
Drainage Area |
0.36 |
Nid Storage |
209 |
Hazard Potential |
Low |
Nid Height |
17 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Catalpa Creek At Mayhew
|
2940cfs |
Tombigbee River At Stennis Lock And Dam
|
2610cfs |
Noxubee River At Macon
|
147cfs |
Luxapallila Creek Nr Columbus
|
525cfs |
Tombigbee River At Bevill L&D Nr Pickensville
|
1550cfs |
Tombigbee River At Aberdeen Lock And Dam
|
121cfs |
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.
Cobb Dam