Mccracken Brothers Reservoir Report

Last Updated: December 5, 2025

Mccracken Brothers is a private-owned dam located in Toole, Montana, along the TR-MARIAS RIVER.


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Summary

Built in 1953, this Earth-type dam stands at 50 feet tall and spans 450 feet in length. The primary purposes of this dam are for fire protection, stock, and a small fish pond, with a storage capacity of 331 acre-feet and a maximum discharge of 740 cubic feet per second.

Managed by the Montana Department of Natural Resources and Conservation (DNRC), Mccracken Brothers has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment. The dam's emergency action plan (EAP) status and risk assessment are currently not available. Despite its age, Mccracken Brothers continues to serve its intended purposes effectively and efficiently, providing essential water resources for the surrounding area.

Given its historical significance and importance for water resource management, Mccracken Brothers stands as a testament to the enduring legacy of private water infrastructure in Montana. With its strategic location and functionality for fire protection and livestock use, this dam plays a crucial role in supporting the local ecosystem and maintaining water security in the region. For water resource and climate enthusiasts, Mccracken Brothers serves as a fascinating example of sustainable water management practices in action.

Year Completed

1953

Dam Length

450

Dam Height

50

River Or Stream

TR-MARIAS RIVER

Primary Dam Type

Earth

Hydraulic Height

50

Nid Storage

331

Hazard Potential

Low

Nid Height

50
       
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.