Barnes Lake Dam Reservoir Report

Last Updated: December 5, 2025

Barnes Lake Dam, located in Benton County, Missouri, stands as a testament to modern engineering with its buttress core type and impressive height of 34.4 feet.


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Summary

Completed in 2015, this private-owned dam boasts a storage capacity of 167 acre-feet, providing essential water resources for the surrounding area. The dam's low hazard potential and moderate risk assessment make it a reliable structure for managing water flow and storage along Trib Negro Creek.

Despite not being regulated by the state, Barnes Lake Dam serves a crucial role in flood control and water management in the region. With a spacious surface area of 14.5 acres and a maximum discharge capacity of 20 cfs, the dam plays a vital role in protecting the local environment and communities from potential flood events. Equipped with a valve outlet gate, the dam's modern design and construction ensure efficient water release and storage capabilities for optimal resource management.

As a relatively new structure, Barnes Lake Dam's condition is not yet rated, but its construction and purpose highlight the importance of sustainable water resource management in the face of changing climate patterns. With its strategic location and moderate risk assessment, the dam stands as a resilient infrastructure for water supply and flood protection, embodying the intersection of human ingenuity and environmental stewardship in the face of a changing climate.

Year Completed

2015

Dam Length

240

Dam Height

34.4

River Or Stream

TRIB NEGRO CREEK

Surface Area

14.5

Hydraulic Height

34.4

Drainage Area

14.5

Nid Storage

167

Structural Height

34.4

Outlet Gates

Valve

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

34
       
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.