Potacocawa Watershed Structure Y-31a-05 Dam Reservoir Report
Last Updated: December 5, 2025
The Potacocawa Watershed Structure Y-31a-05 Dam, also known as Jene Dam, is a local government-owned earth dam located in Carroll County, Mississippi.
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Summary
Designed by the USDA NRCS and completed in 1966, this structure serves the primary purpose of flood risk reduction along the TR- POTACOCOWA CREEK. With a height of 27 feet and a storage capacity of 520 acre-feet, the dam is regulated by the Mississippi Department of Environmental Quality and meets state permitting, inspection, and enforcement requirements.
Situated in the Vicksburg District and overseen by the Natural Resources Conservation Service, the Potacocawa Watershed Structure Y-31a-05 Dam has a low hazard potential and a moderate risk assessment rating. Although the condition assessment is not rated, the dam has not been modified in recent years and does not have an Emergency Action Plan in place. With uncontrolled spillways and outlets, this structure plays a crucial role in managing floodwaters in the region while ensuring public safety and environmental protection. For water resource and climate enthusiasts, this dam serves as a significant example of sustainable flood risk reduction infrastructure in Mississippi.
Year Completed |
1966 |
Dam Height |
27 |
River Or Stream |
TR- POTACOCOWA CREEK |
Primary Dam Type |
Earth |
Surface Area |
17 |
Drainage Area |
1.59 |
Nid Storage |
520 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
27 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Yalobusha River At Grenada
|
3080cfs |
Batupan Bogue At Grenada
|
134cfs |
Tallahatchie River At Money
|
6080cfs |
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.
Potacocawa Watershed Structure Y-31a-05 Dam