Oster Reservoir Report
Nearby: Transistor #2 Transistor #1
Last Updated: December 5, 2025
Oster is a privately owned irrigation structure located in Blaine, Montana along the East Fork Savoy Creek.
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Summary
Constructed in 1950 by the USDA NRCS, Oster serves the primary purpose of irrigation and has a dam height of 15 feet with a length of 800 feet. The dam has a storage capacity of 55 acre-feet, with a normal storage of 22 acre-feet. Despite its low hazard potential and a condition assessment of "Not Rated", Oster is regulated and inspected by the Montana Department of Natural Resources and Conservation (DNRC) to ensure its safety and functionality.
Situated in Congressional District 00, Montana, Oster is in close proximity to the city of Savoy and falls under the jurisdiction of the state regulatory agency. With no associated structures or modifications over the years, Oster remains a crucial component of the local irrigation system. Although lacking specific risk assessment and emergency preparedness details, Oster's low hazard potential and state-regulated status indicate a commitment to maintaining the safety and integrity of the structure for water resource management in the region. Water resource and climate enthusiasts would find Oster's historical significance and operational details intriguing as they delve into the intersection of infrastructure and environmental conservation.
Year Completed |
1950 |
Dam Length |
800 |
Dam Height |
15 |
River Or Stream |
EAST FORK SAVOY CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
15 |
Nid Storage |
55 |
Hazard Potential |
Low |
Nid Height |
15 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Milk River Near Harlem Mt
|
69cfs |
Milk River Near Dodson Mt
|
68cfs |
Peoples Creek Near Hays Mt
|
4cfs |
Battle Creek Near Chinook Mt
|
12cfs |
Clear Creek Near Chinook Mt
|
21cfs |
Milk River At Malta Mt
|
0cfs |
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.
Oster