Trager Lake Dam West Reservoir Report

Last Updated: December 19, 2025

Trager Lake Dam West is a privately owned earth dam located in Livingston County, Missouri, near the city of Chillicothe.


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Summary

Built in 1971, it serves primarily for irrigation purposes but also provides fire protection, stock water, and recreational opportunities. The dam has a height of 33 feet and a normal storage capacity of 96 acre-feet, with a total storage of 141 acre-feet.

Situated on the Thompson River, the dam has a low hazard potential and is currently not rated for its condition. Despite being privately owned, the dam is not regulated by the state and does not require regular inspections or enforcement. Trager Lake Dam West is part of the Rock Island District and falls under the jurisdiction of the Missouri state agency.

With its important role in irrigation and resource management in the region, Trager Lake Dam West stands as a testament to the diverse purposes and benefits that water resource infrastructure can provide. Its presence on the Thompson River contributes to the overall water management system in the area, ensuring a steady supply for various needs while also offering recreational opportunities for the community.

Year Completed

1971

Dam Height

33

River Or Stream

TR-THOMPSON RIVER

Primary Dam Type

Earth

Surface Area

8

Drainage Area

75

Nid Storage

141

Structural Height

33

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

33
       
Seasonal Comparison

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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.