Thibadeau Farm Reservoir Report

Last Updated: December 6, 2025

Thibadeau Farm, located in Chinook, Montana, is a privately owned property that serves multiple purposes, including fire protection, stock management, and small fish pond maintenance.


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Summary

The farm features an earth dam with a height of 30 feet and a length of 1000 feet, completed in 1937. The dam has a storage capacity of 428 acre-feet, with a normal storage level of 248 acre-feet, and a low hazard potential.

Managed by the Montana Department of Natural Resources and Conservation (DNRC), Thibadeau Farm is regulated, permitted, inspected, and enforced by the state. Situated near the TR-LOHMAN COULEE river or stream, the farm's dam plays a crucial role in water resource management in the region. Although it has not been rated for its current condition, the farm's dam has not been modified over the years and does not pose a significant risk according to the available data.

With its strategic location and primary purpose of serving various water-related activities, Thibadeau Farm stands as a testament to sustainable water resource management in Hill County, Montana. Enthusiasts of water resources and climate can appreciate the farm's contribution to fire protection, agriculture, and ecological conservation, highlighting the importance of small-scale water infrastructure in rural settings like Chinook.

Year Completed

1937

Dam Length

1000

Dam Height

30

River Or Stream

TR-LOHMAN COULEE

Primary Dam Type

Earth

Hydraulic Height

30

Nid Storage

428

Hazard Potential

Low

Nid Height

30
       
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.