Abiaca Watershed Structure Y-34-38 Dam Reservoir Report
Last Updated: December 7, 2025
Abiaca Watershed Structure Y-34-38 Dam, also known as Mosley Dam, is a vital component of flood risk reduction efforts in the state of Mississippi.
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Summary
Constructed in 1971 by the USDA NRCS, this earth dam stands at a height of 19 feet and has a storage capacity of 65 acre-feet. Located on the TR-Abiaca Creek in Carroll County, Mississippi, this dam is regulated by the Mississippi Department of Environmental Quality and is inspected regularly to ensure its safety and integrity.
Despite being categorized as having a low hazard potential, the dam's condition assessment in 2015 labeled it as poor, indicating the need for maintenance and potential upgrades. The primary purpose of Abiaca Watershed Structure Y-34-38 Dam is flood risk reduction, and it serves as a critical infrastructure to protect the surrounding areas from potential flooding events. With a moderate risk assessment rating of 3, there is a need for ongoing risk management measures to ensure the dam's effectiveness in mitigating flood risks.
As an essential structure in the Vicksburg District, Abiaca Watershed Structure Y-34-38 Dam plays a crucial role in the overall water resource management of the region. With its historical significance and importance in flood control, this dam serves as a testament to the collaborative efforts between local governments, regulatory agencies, and the USDA NRCS in safeguarding communities from the impacts of extreme weather events.
Year Completed |
1971 |
Dam Height |
19 |
River Or Stream |
TR- ABIACA CREEK |
Primary Dam Type |
Earth |
Drainage Area |
0.45 |
Nid Storage |
65 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
19 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Abiaca Creek At Cruger
|
44cfs |
Harland Creek Nr Howard
|
3340cfs |
Big Black River At West
|
176cfs |
Tallahatchie River At Money
|
5520cfs |
Big Sunflower River At Sunflower
|
1030cfs |
Yockanookany River Nr Kosciusko
|
54cfs |
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.
Abiaca Watershed Structure Y-34-38 Dam