Blair #1 Reservoir Report
Nearby: Berkholder Dam Doesitall
Last Updated: December 21, 2025
Blair #1 is a private water resource located in Liberty, Montana, along the Eagle Creek.
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Summary
Built in 1961, this earth dam stands at 14 feet in height and stretches 600 feet in length, with a storage capacity of 139 acre-feet. The primary purposes of this dam are fire protection, stock, and small fish pond, catering to various local needs.
Owned and regulated by the state of Montana, Blair #1 is inspected, permitted, and enforced by the Department of Natural Resources and Conservation (DNRC). With a low hazard potential and a current condition assessment of 'Not Rated', this dam provides essential services to the surrounding area while maintaining a relatively low risk profile. Although lacking in some detailed information such as inspection frequency and emergency action plans, Blair #1 continues to serve its purpose effectively.
Located in a remote area with no designated city, Blair #1 stands as a testament to sustainable water resource management in Montana. As climate change continues to impact water availability and quality, dams like Blair #1 play a crucial role in securing water for firefighting, livestock, and recreational purposes. With proper maintenance and oversight, this dam will continue to provide essential services to the local community for years to come.
Year Completed |
1961 |
Dam Length |
600 |
Dam Height |
14 |
River Or Stream |
EAGLE CREEK |
Primary Dam Type |
Earth |
Surface Area |
80 |
Hydraulic Height |
14 |
Nid Storage |
139 |
Hazard Potential |
Low |
Nid Height |
14 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Marias River Near Chester Mt
|
253cfs |
Marias River Near Shelby Mt
|
1760cfs |
Milk River At Eastern Crossing Of Int Bndry
|
4cfs |
Cut Bank Creek At Cut Bank Mt
|
138cfs |
Teton River Near Dutton Mt
|
83cfs |
Marias River Near Loma Mt
|
335cfs |
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.
Blair #1