Potacocawa Watershed Structure Y-31a-03 Dam Reservoir Report
Last Updated: December 5, 2025
Potacocawa Watershed Structure Y-31a-03 Dam, also known as Knight Dam, is a local government-owned earth dam located in Carroll County, Mississippi.
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Summary
Designed by USDA NRCS and completed in 1962, this dam serves primarily for flood risk reduction along TR- Potacocawa Creek. With a height of 33 feet and a storage capacity of 333 acre-feet, this structure plays a crucial role in protecting the surrounding area from potential flooding events.
Managed by the Mississippi Department of Environmental Quality, this dam is state-regulated and subject to regular inspection, enforcement, and permitting requirements. Despite being classified as having a low hazard potential, the dam's risk assessment is moderate (3). While the condition assessment is currently not rated, the dam's emergency action plan status and risk management measures are not specified, indicating potential areas for improvement in emergency preparedness and response protocols.
Overall, Potacocawa Watershed Structure Y-31a-03 Dam stands as a vital infrastructure in the region's water resource management efforts. Its strategic location, design features, and regulatory oversight contribute to mitigating flood risks and safeguarding the community and environment. As water resource and climate enthusiasts, understanding the significance of such dams in maintaining water security and resilience to climate impacts is crucial for sustainable development and disaster preparedness in the region.
Year Completed |
1962 |
Dam Height |
33 |
River Or Stream |
TR- POTACOCAWA CREEK |
Primary Dam Type |
Earth |
Surface Area |
11.3 |
Drainage Area |
1.02 |
Nid Storage |
333 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
33 |
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.
Potacocawa Watershed Structure Y-31a-03 Dam