Flood Water Retarding Structure Site 47 Reservoir Report

Last Updated: December 6, 2025

Flood Water Retarding Structure Site 47, also known as Fwrs #47, is a federal-owned structure located in Holmes, Mississippi, near the city of Lexington.


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Summary

Built in 1995 by the US Army Corps of Engineers, this earth dam was designed to reduce flood risks and has a hydraulic height of 42 feet with a structural height of 45 feet. With a normal storage capacity of 540 acre-feet and a maximum storage capacity of 3,476 acre-feet, this structure plays a crucial role in managing water levels in Williams Creek, which has a drainage area of 6 square miles.

Despite its low hazard potential, Flood Water Retarding Structure Site 47 is subject to regular inspections and risk assessments to ensure its continued functionality. The US Army Corps of Engineers actively monitors the dam's condition, implements risk management measures, and collaborates with local emergency managers to develop emergency action plans and evacuation procedures. By proactively addressing potential flood risks and engaging with the community, the USACE works to maintain the dam's integrity and protect downstream areas from potential flooding events. More detailed information about this specific dam will be provided in the future, highlighting its importance in mitigating flood risks in the region.

Year Completed

1995

Dam Length

1540

River Or Stream

WILLIAMS CREEK

Primary Dam Type

Earth

Surface Area

79

Hydraulic Height

42

Drainage Area

6

Nid Storage

3476

Structural Height

45

Hazard Potential

Low

Foundations

Soil

Nid Height

45
       
Seasonal Comparison

Weather Forecast

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.