Atkins #2 Reservoir Report

Last Updated: December 5, 2025

Situated in Big Horn, Montana, Atkins #2 is a privately owned earth dam completed in 1965 with a primary purpose of serving as a fire protection, stock, or small fish pond.


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Summary

The dam stands at a height of 12 feet with a storage capacity of 58 acre-feet. Located on the TR-WHITMAN COULEE, this low hazard potential structure is regulated by the Montana Department of Natural Resources and Conservation (DNRC) and is subject to state permitting, inspection, and enforcement.

Managed by the owner for multiple purposes including fire protection and stock watering, Atkins #2 serves as a vital water resource in the region. The dam's location in a rural area underscores its importance in providing essential water storage for agricultural and firefighting purposes. Despite its low hazard potential, the structure's role in maintaining water availability highlights its significance in the local climate and water management strategies.

With a condition assessment of "Not Rated" and no recent inspection data available, Atkins #2 underscores the importance of regular monitoring and maintenance to ensure its continued functionality and safety. As a key asset for water storage and management in the area, efforts to keep the dam in optimal condition are crucial for mitigating potential risks and ensuring its long-term reliability in supporting the community's water resource needs.

Year Completed

1965

Dam Length

75

Dam Height

12

River Or Stream

TR-WHITMAN COULEE

Primary Dam Type

Earth

Hydraulic Height

12

Nid Storage

58

Hazard Potential

Low

Nid Height

12
       
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.