Blatter Reservoir Report
Nearby: Saskview Dam Vr-77 Retention Dam
Last Updated: December 6, 2025
Blatter, located in Valley, Montana, is a privately owned earth dam designed by the USDA NRCS with a primary purpose of fire protection, stock, or small fish pond.
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Summary
Completed in 1945, this dam stands at a height of 25 feet and has a storage capacity of 63 acre-feet, with a normal storage level of 32 acre-feet. Situated on a Canadian tributary, Blatter serves as a crucial asset for water resource management in the area, providing essential water storage for various purposes.
Managed by the DNRC and regulated by the state of Montana, Blatter has a low hazard potential and is currently rated as 'Not Rated' in terms of condition assessment. Despite lacking specific inspection and emergency preparedness data, the dam continues to play a vital role in fire protection and water supply for the surrounding community. With its strategic location and design, Blatter stands as a testament to effective water resource infrastructure in the region.
Overall, Blatter represents a key element in the water resource network of Montana, serving multiple purposes and providing essential benefits to the local ecosystem. While further assessment and inspection are needed to ensure its long-term viability, the dam remains a valuable asset for water storage, fire protection, and stock maintenance. As climate change continues to impact water resources, structures like Blatter play a crucial role in maintaining a sustainable and resilient water supply for the region.
Year Completed |
1945 |
Dam Length |
200 |
Dam Height |
25 |
River Or Stream |
CANADIAN TRIBUTARY |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Drainage Area |
1.34 |
Nid Storage |
63 |
Hazard Potential |
Low |
Nid Height |
25 |
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.
Blatter