Shumaker Lake Dam Reservoir Report

Last Updated: December 8, 2025

Shumaker Lake Dam, located in Flowood, Mississippi, is a privately owned structure regulated by the Mississippi Department of Environmental Quality.


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Summary

This earth dam, standing at a height of 15 feet and stretching 320 feet in length, serves primarily for recreational purposes, providing a surface area of 4.3 acres for outdoor enthusiasts to enjoy. The dam holds a storage capacity of 39 acre-feet, with a normal storage level of 28 acre-feet and a maximum discharge rate of 138 cubic feet per second.

Despite its fair condition assessment and high hazard potential, Shumaker Lake Dam has been inspected regularly, with the last assessment conducted in December 2020. The dam's emergency action plan was last revised in 2015, and it currently meets moderate risk guidelines. With its uncontrolled spillway type and associated moderate risk level, this dam presents a unique blend of recreational opportunity and potential challenges, making it a fascinating point of interest for water resource and climate enthusiasts alike in the beautiful surrounding area of Rankin County, Mississippi.

Dam Length

320

Dam Height

15

River Or Stream

UNT OF OF HOG CREEK

Primary Dam Type

Earth

Surface Area

4.3

Drainage Area

0.05

Nid Storage

39

Outlet Gates

None

Hazard Potential

High

Nid Height

15
       
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.