Elloam Ass.Reservoir Reservoir Report
Last Updated: February 3, 2026
Elloam Ass.Reservoir is a privately owned water resource located in Chinook, Montana, serving multiple purposes including fire protection, stock, and small fish pond.
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Summary
Built in 1903, this Earth dam stands at 25 feet high and stretches 350 feet in length, with a storage capacity of 175 acre-feet. Situated along TR-LODGE CREEK, this reservoir is regulated by the Montana Department of Natural Resources and Conservation (DNRC), ensuring regular inspections and enforcement of state regulations.
With a low hazard potential and a condition assessment that is currently not rated, Elloam Ass.Reservoir provides a reliable water source for the surrounding area. Its maximum storage capacity of 175 acre-feet and normal storage of 104 acre-feet make it a valuable resource for fire protection and livestock watering. Despite its age, the reservoir is well-maintained and regularly inspected to ensure its safety and functionality for the community.
Located in Congressional District 00, Montana, and owned by a private entity, Elloam Ass.Reservoir plays a crucial role in water management within Blaine County. As a key component of the local water infrastructure, this reservoir serves as a testament to sustainable water resource management practices in the region.
Year Completed |
1903 |
Dam Length |
350 |
Dam Height |
25 |
River Or Stream |
TR-LODGE CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Nid Storage |
175 |
Hazard Potential |
Low |
Nid Height |
25 |
Seasonal Comparison
Hourly 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.
Elloam Ass.Reservoir