Potococawa Watershed Structure Y-31a-17 Dam Reservoir Report
Last Updated: December 5, 2025
The Potococawa Watershed Structure Y-31a-17 Dam, also known as the Hobgood Dam, is a crucial infrastructure owned by the local government of Carroll, Mississippi.
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Summary
Designed by the USDA NRCS, this earth dam serves the primary purpose of flood risk reduction in the area. Completed in 1967, it has a height of 24 feet and a storage capacity of 117 acre-feet, providing protection to the TR- Potacocowa Creek.
Situated in the city of Avalon, Mississippi, this dam is regulated by the Mississippi Department of Environmental Quality and is equipped with an uncontrolled spillway. With a low hazard potential and a moderate risk assessment rating, the Potococawa Watershed Structure Y-31a-17 Dam plays a vital role in managing water resources and mitigating potential flood risks in the region. As a key piece of infrastructure in the Vicksburg District, this dam exemplifies the importance of sustainable water resource management in the face of changing climate conditions.
Year Completed |
1967 |
Dam Height |
24 |
River Or Stream |
TR- POTACOCOWA CREEK |
Primary Dam Type |
Earth |
Drainage Area |
0.38 |
Nid Storage |
117 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
24 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Tallahatchie River At Money
|
6080cfs |
Yalobusha River At Grenada
|
3080cfs |
Batupan Bogue At Grenada
|
134cfs |
Abiaca Creek At Cruger
|
44cfs |
Big Sunflower River At Sunflower
|
1370cfs |
Big Black River At West
|
223cfs |
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.
Potococawa Watershed Structure Y-31a-17 Dam