Agnes Bob And Noel Reservoir Report

Last Updated: December 5, 2025

Agnes Bob and Noel is a state-owned dam located in Virgelle, Montana, along the TR-Crow Coulee river.


°F

°F

mph

Wind

%

Humidity

Summary

Completed in 1957, this earth dam stands at a height of 30 feet and has a storage capacity of 57 acre-feet, primarily serving purposes such as fire protection, stock watering, and creating a small fish pond. The dam is regulated by the Montana Department of Natural Resources and Conservation (DNRC) and undergoes regular inspections, enforcement, and permitting to ensure its safety and functionality. While it has a low hazard potential, the condition of Agnes Bob and Noel has not been officially rated.

Situated in Chouteau County, Montana, Agnes Bob and Noel is managed by the state government and remains under state jurisdiction. The dam's location, at coordinates 47.9155 latitude and -110.3176 longitude, contributes to its importance in providing essential water resources for the local community. Despite having no associated structures and being non-Federal, the dam plays a crucial role in serving the surrounding area for various purposes, highlighting its significance in water resource management and climate resilience efforts.

With its historical significance dating back to over six decades, Agnes Bob and Noel continues to play a vital role in water management in Montana. As a key component of the local infrastructure, the dam's purpose extends beyond fire protection and stock watering to contributing to the overall environmental sustainability in the region. As water resource and climate enthusiasts, the presence of Agnes Bob and Noel serves as a reminder of the essential role that dams play in supporting communities and ecosystems, highlighting the need for continued monitoring and maintenance to ensure their long-term functionality and safety.

Year Completed

1957

Dam Length

300

Dam Height

30

River Or Stream

TR-CROW COULEE

Primary Dam Type

Earth

Hydraulic Height

30

Nid Storage

57

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.