Christopher Columbus Reservoir Report

Last Updated: December 5, 2025

Located in Avon, Montana, the Christopher Columbus Dam is a privately owned structure primarily used for irrigation purposes along the TR-Snowshoe Creek.


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Summary

Completed in 1962, this earth dam stands at a height of 20 feet and has a storage capacity of 109 acre-feet. The dam is regulated by the Montana Department of Natural Resources and Conservation (DNRC) and is inspected regularly to ensure compliance with state regulations.

With a low hazard potential and a current condition assessment of "Not Rated," the Christopher Columbus Dam plays a crucial role in managing water resources in the Powell County area. Despite its age, the dam continues to fulfill its purpose effectively, providing water for irrigation and contributing to the agricultural landscape of the region. While the dam has not undergone recent modifications or assessments, it remains a key component of the local water infrastructure.

Managed by a private owner, the Christopher Columbus Dam serves as a vital resource for the community, ensuring water availability for agricultural activities in the region. As climate change continues to impact water resources, structures like the Christopher Columbus Dam play a crucial role in maintaining sustainable water management practices and supporting the local ecosystem. With its regulated status and consistent inspection, the dam stands as a reliable asset for water resource enthusiasts and climate advocates alike.

Year Completed

1962

Dam Length

300

Dam Height

20

River Or Stream

TR-SNOWSHOE CREEK

Primary Dam Type

Earth

Hydraulic Height

20

Nid Storage

109

Hazard Potential

Low

Nid Height

20
       
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.