Potacocawa Watershed Structure Y-31a-01 Dam Reservoir Report
Last Updated: December 5, 2025
Potacocawa Watershed Structure Y-31a-01 Dam, also known as Perkins Lake, is a local government-owned dam located in Avalon, Mississippi.
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Summary
Built in 1962 by the USDA NRCS, this earth dam stands at a height of 30 feet and serves as a flood risk reduction structure along the Bobmore Branch river. With a storage capacity of 530 acre-feet, the dam plays a crucial role in managing water flow and reducing the risk of flooding in the area.
Managed by the Mississippi Department of Environmental Quality, Potacocawa Watershed Structure Y-31a-01 Dam is regulated, permitted, inspected, and enforced by state authorities to ensure its safety and functionality. Despite being classified as having a low hazard potential and a moderate risk assessment, the dam's condition is currently not rated. Nonetheless, the dam's primary purpose of flood risk reduction highlights its importance in protecting the surrounding community and the environment from potential water-related disasters.
With its earth dam construction and buttress core type, Potacocawa Watershed Structure Y-31a-01 Dam showcases the collaboration between federal and state agencies in safeguarding water resources and mitigating climate-related risks. As water resource and climate enthusiasts, understanding and monitoring the condition of such structures is crucial for ensuring the sustainability and resilience of our water infrastructure in the face of changing environmental conditions.
Year Completed |
1962 |
Dam Height |
30 |
River Or Stream |
BOBMORE BRANCH |
Primary Dam Type |
Earth |
Drainage Area |
1.44 |
Nid Storage |
530 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
30 |
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-01 Dam