Mcintyre Reservoir Reservoir Report

Last Updated: December 6, 2025

Mcintyre Reservoir, located in Toole County, Montana, is a private water resource built in 1930 with a primary purpose of fire protection, stock, and small fish pond.


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Summary

This earth dam stands at 30 feet high and spans 300 feet in length, providing a storage capacity of 100 acre-feet. Situated on the Clift Coulee river, the reservoir serves as a vital water source for the city of Galata, ensuring water availability for firefighting and agricultural purposes.

Managed by the Montana Department of Natural Resources and Conservation (DNRC), Mcintyre Reservoir is regulated, inspected, and enforced to meet state standards, with a significant hazard potential due to its age and condition assessment being not rated. The dam's emergency action plan and risk management measures are not yet fully documented, highlighting the importance of ongoing monitoring and maintenance. Despite not being under the jurisdiction of the US Army Corps of Engineers, the reservoir plays a crucial role in water management and conservation efforts in the region, making it a key asset for local water resource and climate enthusiasts to monitor and support.

Year Completed

1930

Dam Length

300

Dam Height

30

River Or Stream

CLIFT COULEE

Primary Dam Type

Earth

Hydraulic Height

30

Nid Storage

100

Hazard Potential

Significant

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.