Steve Horn Number 3 Dam Reservoir Report

Last Updated: December 11, 2025

Located in Madison, Mississippi, the Steve Horn Number 3 Dam, also known as Dam #3, is a privately owned structure that serves as a recreational facility.


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Summary

Completed in 1999, this earth dam stands at a height of 20.3 feet and has a length of 770 feet, creating a storage capacity of 112 acre-feet. Situated on Persimmon Creek, the dam has a low hazard potential and is not currently rated for its condition.

Managed by the Mississippi Department of Environmental Quality, the Steve Horn Number 3 Dam is regulated, permitted, inspected, and enforced by the state agency. With a moderate risk assessment rating, this dam is designed primarily for recreation and has a spillway type of uncontrolled. Although not equipped with locks or outlet gates, the dam provides a surface area of 9 acres and a maximum discharge rate of 587 cubic feet per second, offering water enthusiasts a serene environment for outdoor activities.

Year Completed

1999

Dam Length

770

Dam Height

20.3

River Or Stream

PERSIMMON CREEK

Primary Dam Type

Earth

Surface Area

9

Drainage Area

0.06

Nid Storage

112

Hazard Potential

Low

Nid Height

20
       
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.