Stevens Dam Reservoir Report

Last Updated: December 11, 2025

Stevens Dam, located in St.


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Summary

Patrick, Missouri, is a privately owned earth dam primarily used for grade stabilization along the Buck Run stream. Completed in 1997, the dam stands at a height of 30.9 feet with a hydraulic height of 28 feet and a structural height of 27 feet. It has a maximum storage capacity of 20 acre-feet, with a normal storage level of 14 acre-feet, covering a surface area of 11 acres and draining a watershed of 786 acres.

With a spillway width of 10 feet and an uncontrolled spillway type, Stevens Dam has a low hazard potential and a moderate risk level. Despite not being state regulated or inspected, the dam's condition is currently unrated. It does not have any outlet gates or associated structures, and its emergency action plan status is unknown. Stevens Dam offers water resource and climate enthusiasts a unique opportunity to study the impact of private dams on local ecosystems and water management practices in Missouri.

Year Completed

1997

Dam Length

249

Dam Height

30.9

River Or Stream

BUCK RUN

Primary Dam Type

Earth

Surface Area

11

Hydraulic Height

28

Drainage Area

786

Nid Storage

20

Structural Height

27

Outlet Gates

None

Hazard Potential

Low

Foundations

Soil

Nid Height

31
       
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.