Campbell #1 Reservoir Report

Last Updated: December 5, 2025

Campbell #1 is a privately owned dam located in Hardin, Montana, along Spring Creek.


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Summary

Built in 1954, this earth dam stands at a height of 16 feet and serves multiple purposes, including fire protection, stock, and small fish pond. With a storage capacity of 84 acre-feet, the dam has a low hazard potential and is regulated by the Montana Department of Natural Resources and Conservation.

Despite its age, Campbell #1 has not been rated for its condition, and there is limited information available on its inspection history and emergency preparedness measures. The dam is not owned or funded by any federal agency and does not fall under the jurisdiction of the US Army Corps of Engineers. While it poses a low risk of failure, further assessment and maintenance may be necessary to ensure its long-term functionality and safety for the surrounding community and the environment. Climate and water resource enthusiasts may find this dam of interest for its role in local water management and conservation efforts in the Big Horn County area of Montana.

Year Completed

1954

Dam Length

100

Dam Height

16

River Or Stream

SPRING CREEK

Primary Dam Type

Earth

Hydraulic Height

16

Nid Storage

84

Hazard Potential

Low

Nid Height

16
       
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.
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Area Campgrounds