Swart #3 Reservoir Report

Last Updated: December 6, 2025

Swart #3, located in Rosebud, Montana, is a private earth dam completed in 1942 with a primary purpose of providing fire protection, stock, or a small fish pond.


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Summary

It stands at a height of 15 feet and has a storage capacity of 77 acre-feet, with a normal storage level of 40 acre-feet. The dam is situated on Sand Creek and is regulated by the Montana Department of Natural Resources and Conservation (DNRC), ensuring regular inspections and enforcement of safety measures.

Despite its low hazard potential and current "Not Rated" condition assessment, Swart #3 plays a crucial role in water resource management and climate resilience in the area. Its strategic location in the Omaha District and proximity to Congressional District 00, Montana, highlights its importance in providing essential services to the local community. The dam's emergency action plan status, risk assessment, and management measures are currently undetermined, pointing to the need for continued monitoring and preparedness in the face of evolving environmental challenges.

As water resource and climate enthusiasts, understanding the significance of structures like Swart #3 is key to promoting sustainable practices and safeguarding ecosystems. By staying informed about its design, purpose, and regulatory oversight, individuals can contribute to the preservation of water resources and the adaptation to changing climate conditions in the region. Swart #3 serves as a testament to the intersection of human intervention and natural systems, calling for ongoing collaboration and innovation in managing water resources for the benefit of present and future generations.

Year Completed

1942

Dam Length

150

Dam Height

15

River Or Stream

SAND CREEK

Primary Dam Type

Earth

Hydraulic Height

15

Nid Storage

77

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.