Curran-Barrett #1 Reservoir Report

Last Updated: December 5, 2025

Curran-Barrett #1 is a privately owned irrigation dam located in Hardy, Montana, along the TR-Dearborn River.


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Summary

Built in 1940, this earth dam stands at 15 feet high and has a storage capacity of 145 acre-feet. The dam is regulated by the Montana Department of Natural Resources and Conservation (DNRC), with state permitting, inspection, and enforcement in place to ensure its safety and compliance with regulations.

With a low hazard potential and a current condition assessment of "Not Rated," Curran-Barrett #1 plays a crucial role in water resource management in Lewis and Clark County, Montana. Although the dam's specific purposes are focused on irrigation, it also serves as a key structure for water storage and management in the area. As a part of the Walla Walla District, the dam contributes to the overall water infrastructure and plays a significant role in supporting agricultural activities in the region.

Despite its age, Curran-Barrett #1 continues to operate effectively and safely, with no recent modifications or inspections reported. While the dam's emergency action plan status and risk assessment details are not available, its presence and function remain vital for water supply and climate resilience in the area. As a symbol of sustainable water resource management, Curran-Barrett #1 stands as a testament to the importance of infrastructure in supporting agricultural and environmental needs in Montana.

Year Completed

1940

Dam Length

40

Dam Height

15

River Or Stream

TR-DEARBORN RIVER

Primary Dam Type

Earth

Hydraulic Height

15

Nid Storage

145

Hazard Potential

Low

Nid Height

15
       
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.