Swank Reservoir Reservoir Report
Nearby: Beck Barney Rubbel
Last Updated: January 11, 2026
Swank Reservoir, located in Roosevelt, Montana, is a private water resource managed by the USDA NRCS, designed for fire protection, stock, and small fish pond purposes.
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Summary
Completed in 1952, this Earth dam stands at a height of 15 feet and spans 350 feet in length, with a storage capacity of 62 acre-feet. Situated on the TR-POPLAR RIVER, the reservoir serves as a crucial source of water for the surrounding area, with a maximum discharge of 500 cfs and a spillway width of 100 feet.
Despite its low hazard potential and moderate risk assessment, Swank Reservoir is not currently rated for its condition assessment. The dam's emergency action plan status and compliance with guidelines are also unknown. While the reservoir plays a significant role in fire protection and livestock watering, its overall risk management measures and potential hazards remain unclear. With its scenic location and vital role in water resource management, Swank Reservoir presents a fascinating opportunity for climate and water enthusiasts to explore and study its impact on the surrounding ecosystem.
Year Completed |
1952 |
Dam Length |
350 |
Dam Height |
15 |
River Or Stream |
TR-POPLAR RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
15 |
Nid Storage |
62 |
Hazard Potential |
Low |
Nid Height |
15 |
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.
Swank Reservoir