Whitetail Reservoir Report

Last Updated: December 6, 2025

Whitetail is a state-owned dam located in Rosebud County, Montana, specifically in Miles City.


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Summary

Completed in 1961, it serves multiple purposes such as fire protection, stock, and a small fish pond. The dam is primarily used for water resource management and is regulated by the Department of Natural Resources and Conservation (DNRC) in Montana. With a height of 18 feet and a storage capacity of 77 acre-feet, Whitetail plays a crucial role in maintaining water supply and supporting various activities in the area.

Situated on Whitetail Creek, this earth-type dam has a low hazard potential and is currently rated as 'not rated' in terms of its condition assessment. While the dam has not been inspected recently, it is equipped with state-mandated regulatory measures for inspection, enforcement, and permitting to ensure public safety and water resource sustainability. With its strategic location and purposeful design, Whitetail serves as an essential infrastructure for water management in the region, contributing to the overall climate resilience and resource utilization in the area.

As a key player in the water resource infrastructure of Montana, Whitetail dam provides valuable support for fire protection, livestock, and recreational activities in the surrounding region. With its storage capacity, structural design, and state-regulated operations, the dam remains a vital asset for water management and climate resilience efforts. As water resource and climate enthusiasts, understanding the significance of structures like Whitetail is essential for promoting sustainable practices and enhancing resilience in the face of changing environmental conditions.

Year Completed

1961

Dam Length

225

Dam Height

18

River Or Stream

TR-WHITETAIL CREEK

Primary Dam Type

Earth

Hydraulic Height

18

Nid Storage

77

Hazard Potential

Low

Nid Height

18
       
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.