Crandall Reservoir Reservoir Report
Nearby: Barney Rubbel Wilma
Last Updated: December 31, 2025
Crandall Reservoir, located in Roosevelt County, Montana, is a private earth dam completed in 1937 for fire protection, stock, and as a small fish pond.
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Summary
The reservoir, situated along Badger Creek, has a dam height of 20 feet and a storage capacity of 206 acre-feet, with a normal storage level of 106 acre-feet. The dam is regulated by the Montana Department of Natural Resources and Conservation (DNRC) and is inspected, permitted, and enforced by the state authorities.
The low hazard potential Crandall Reservoir serves as a vital water resource for the local community in Poplar, Montana. With a maximum discharge of 700 cubic feet per second, the reservoir plays a crucial role in providing water for fire protection and supporting livestock. Despite being not rated for its condition assessment, the reservoir continues to be a reliable source of water for various purposes, highlighting its importance in the region.
As a significant feature in the area, Crandall Reservoir, with its historical significance dating back to the 1930s, stands as a testament to the engineering and planning efforts of its time. With its picturesque location and functional design, the reservoir serves as a valuable asset for water storage and management, contributing to the sustainability of water resources in Roosevelt County, Montana.
Year Completed |
1937 |
Dam Length |
450 |
Dam Height |
20 |
River Or Stream |
BADGER CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Nid Storage |
206 |
Hazard Potential |
Low |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Crandall Reservoir