Byrn Dam Reservoir Report

Last Updated: December 6, 2025

Byrn Dam, located in Schuyler, Missouri, along Brushy Creek, is a privately owned earth dam completed in 1995 for grade stabilization purposes.


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Summary

This low hazard potential dam stands at 30 feet tall with a hydraulic height of 20 feet and a structural height of 23 feet, providing storage for up to 24 acre-feet of water. Its uncontrolled spillway, 10 feet wide, can handle a maximum discharge of 3 cubic feet per second, serving a drainage area of 147.2 square miles.

Despite being state-regulated, Byrn Dam has not undergone state inspection, permitting, or enforcement due to its private ownership. The dam's condition assessment is not rated, and it does not have an emergency action plan in place. With a moderate risk assessment rating of 3, the dam stands as a critical infrastructure for grade stabilization in the area, although there may be opportunities for further risk management measures to be implemented in the future.

Overall, Byrn Dam serves as a vital component in managing water resources in the region, providing essential grade stabilization benefits. Its presence along Brushy Creek contributes to the overall water quality and storage capacity, supporting the surrounding ecosystem and local communities. As a privately owned structure, continued monitoring and maintenance efforts will be necessary to ensure the dam's continued effectiveness and safety for both water resource management and climate adaptation purposes.

Year Completed

1995

Dam Length

365

Dam Height

30

River Or Stream

BRUSHY CREEK

Primary Dam Type

Earth

Surface Area

5

Hydraulic Height

20

Drainage Area

147.2

Nid Storage

24

Structural Height

23

Outlet Gates

None

Hazard Potential

Low

Foundations

Soil

Nid Height

30
       
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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.