Abiaca Watershed Structure Y-34-45 Dam Reservoir Report

Last Updated: December 9, 2025

The Abiaca Watershed Structure Y-34-45 Dam, also known as the Miller Dam, is a local government-owned dam located in Carroll, Mississippi.


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Summary

Built in 1973 by the NRCS, this earth dam stands at 28 feet high and serves primarily for flood risk reduction in the region. Despite its low hazard potential, the dam is regulated by the Mississippi Department of Environmental Quality and undergoes regular inspections and enforcement to ensure its fair condition.

With a storage capacity of 248 acre-feet, the Abiaca Watershed Dam plays a crucial role in managing flood risks in the area. The dam features an uncontrolled spillway and has a moderate risk rating of 3. Although the dam is fairly assessed with a low hazard potential, it is important to note that it meets regulatory guidelines and is subject to state permitting, inspection, and enforcement to ensure the safety of the surrounding community and environment. For water resource and climate enthusiasts, this dam serves as a key structure in the Vicksburg District with a focus on flood risk reduction and water management.

Year Completed

1973

Dam Height

28

Primary Dam Type

Earth

Nid Storage

248

Hazard Potential

Low

Nid Height

28
       
Seasonal Comparison

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Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.