Deveny Dam Reservoir Report

Last Updated: December 8, 2025

Deveny Dam, located on the TR-Muddy Fork river in Knox, Missouri, was completed in 2007 by the USDA NRCS for grade stabilization purposes.


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Summary

The dam is a 31-foot high earth structure with a core made of stone and a foundation of soil. It has a storage capacity of 44.3 acre-feet and serves to stabilize the surrounding area while also providing flood control benefits.

The dam's spillway is uncontrolled with a width of 20 feet, and it has a low hazard potential. While the dam itself is in good condition and meets safety guidelines, it is not currently rated for its condition. The risk assessment for the dam is moderate, indicating that there are potential risks that need to be managed. Overall, Deveny Dam plays a crucial role in water resource management and climate resilience efforts in the region, serving as a key infrastructure for protecting the surrounding community from flooding and erosion.

With its strategic location and modern design, Deveny Dam stands as a testament to the importance of sustainable water resource management. As a privately owned structure, it highlights the collaboration between government agencies and private entities in ensuring the safety and efficiency of water infrastructure. Its completion marked a significant milestone in enhancing the region's resilience to climate-related challenges, showcasing the innovative solutions that can be implemented to safeguard water resources and communities in the face of a changing climate.

Year Completed

2007

Dam Length

260

Dam Height

26

River Or Stream

TR-MUDDY FORK

Primary Dam Type

Earth

Surface Area

5

Hydraulic Height

24

Drainage Area

147.2

Nid Storage

44.3

Structural Height

31

Outlet Gates

Uncontrolled

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.