T-Bar Reservoir Report
Nearby: Ester Lake (Phillips) Early Bird
Last Updated: December 5, 2025
T-Bar is a private water resource located in Malta, Montana, specifically on the TR-Big Warm Creek.
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Summary
This earth dam was completed in 1955 and serves multiple purposes, including fire protection, stock, and small fish pond management. With a dam height of 10 feet and a storage capacity of 110 acre-feet, T-Bar provides essential water resources for the surrounding area.
Managed by the DNRC, T-Bar is state-regulated and meets inspection, enforcement, and permitting requirements. The dam's hazard potential is rated as low, and its condition has not been formally assessed. Despite these uncertainties, T-Bar remains a critical piece of infrastructure for water management in Phillips County, Montana. As a water resource and climate enthusiast, the T-Bar dam offers a fascinating case study of how private entities play a crucial role in maintaining and regulating water resources in the western United States.
With its location in a picturesque setting and its role in supporting local agriculture and fire protection efforts, T-Bar is a prime example of the intersection between water resource management and climate resilience. As enthusiasts in these fields, exploring the history and significance of T-Bar can provide valuable insights into the challenges and opportunities related to sustainable water management in the region.
Year Completed |
1955 |
Dam Length |
200 |
Dam Height |
10 |
River Or Stream |
TR-BIG WARM CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
10 |
Nid Storage |
110 |
Hazard Potential |
Low |
Nid Height |
10 |
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.
T-Bar