Schweizer 004 Reservoir Report

Last Updated: December 14, 2025

Schweizer 004 is a private earth dam located in NODAWAY, Missouri, along the NODAWAY River.


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Summary

Completed in 1978 for the primary purpose of grade stabilization, this dam stands at a height of 27 feet and spans a length of 370 feet, with a storage capacity of 45 acre-feet. Although it has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment, the risk assessment for Schweizer 004 is considered moderate.

The dam features an uncontrolled spillway with a width of 46 feet, and no outlet gates or associated structures. With a drainage area of 150 square miles and a maximum discharge capacity of 437 cubic feet per second, Schweizer 004 plays a crucial role in managing water flow and preventing erosion in the surrounding area. Despite not being regulated or inspected by the state, the dam serves as a key infrastructure for water resource management in Andrew County, Missouri.

For water resource and climate enthusiasts, Schweizer 004 offers a fascinating case study in earth dam construction and management. As a privately owned structure with a specific focus on grade stabilization, this dam showcases the importance of local infrastructure in mitigating risks and ensuring water security. With its moderate risk assessment and low hazard potential, Schweizer 004 stands as a testament to effective engineering and maintenance practices in the face of changing environmental conditions.

Year Completed

1978

Dam Length

370

Dam Height

27

River Or Stream

NODAWAY

Primary Dam Type

Earth

Surface Area

3

Hydraulic Height

27

Drainage Area

150

Nid Storage

45

Structural Height

27

Outlet Gates

None

Hazard Potential

Low

Foundations

Soil

Nid Height

27
       
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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.