Powell #2 (Blaine) Reservoir Report
Nearby: Powell #1 (Blaine) Mitchell
Last Updated: December 5, 2025
Powell #2 in Blaine County, Montana, is a privately owned earth dam completed in 1935 with a primary purpose of fire protection, stock, or small fish pond.
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Summary
Located on TR-Tin Cup Creek, this dam has a height of 10 feet and a storage capacity of 198 acre-feet. With a low hazard potential and a condition assessment of "Not Rated," Powell #2 plays a crucial role in providing water resources for firefighting and livestock in the area.
Managed by the Montana Department of Natural Resources and Conservation (DNRC), Powell #2 is state-regulated, permitted, inspected, and enforced, ensuring its safety and compliance with regulatory standards. Although the dam has not been rated for condition assessment, its low hazard potential suggests minimal risk to the surrounding community. Situated in Congressional District 00, Montana, Powell #2 serves as a vital infrastructure for water resource management in the region.
As a water resource and climate enthusiast, Powell #2 offers an intriguing case study in dam infrastructure and its role in supporting various purposes such as fire protection and stock watering. With its historical significance dating back to 1935, this earth dam continues to play a vital role in water storage and management in Blaine County. Climate advocates and water resource enthusiasts can appreciate the importance of Powell #2 in sustaining local ecosystems and communities through its storage capacity and regulatory oversight.
Year Completed |
1935 |
Dam Length |
100 |
Dam Height |
10 |
River Or Stream |
TR-TIN CUP CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
10 |
Nid Storage |
198 |
Hazard Potential |
Low |
Nid Height |
10 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Peoples Creek Near Hays Mt
|
4cfs |
Milk River Near Harlem Mt
|
69cfs |
Missouri River Near Landusky Mt
|
9100cfs |
Clear Creek Near Chinook Mt
|
21cfs |
Judith River Nr Mouth
|
368cfs |
Milk River Near Dodson Mt
|
68cfs |
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.
Powell #2 (Blaine)