Upper O'Dell Coulee Reservoir Reservoir Report
Nearby: Dealers Choice T&S Stock Co #4
Last Updated: December 20, 2025
Upper O'Dell Coulee Reservoir, located in Wolf Point, Montana, is a privately owned earth dam structure completed in 1952 for the primary purpose of irrigation.
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Summary
The reservoir has a storage capacity of 85 acre-feet and a dam height of 24 feet, providing water to support agricultural activities in the region. Situated on Antelope Creek, this low hazard potential reservoir is regulated by the Montana Department of Natural Resources and Conservation (DNRC) with state jurisdiction, permitting, inspection, and enforcement in place to ensure its safe operation.
Even though the condition assessment of Upper O'Dell Coulee Reservoir is currently marked as "Not Rated," the reservoir's low hazard potential and the presence of regulatory agencies demonstrate a commitment to maintaining its safety and functionality. With a normal storage capacity of 49 acre-feet and a drainage area in McCone County, this reservoir plays a crucial role in supporting the irrigation needs of the local community. While no risk assessment or emergency action plan information is available, the reservoir's design and construction meet state guidelines, ensuring that it continues to serve as a vital water resource for the area.
As an essential component of the local water infrastructure, Upper O'Dell Coulee Reservoir contributes to the sustainability of agriculture in the region by providing reliable water supplies for irrigation purposes. With its strategic location and state oversight, the reservoir serves as a testament to the importance of effective water resource management in mitigating climate impacts and ensuring the resilience of water systems. Enthusiasts interested in water resources and climate will appreciate the role that Upper O'Dell Coulee Reservoir plays in supporting agricultural activities and enhancing water security in the area.
Year Completed |
1952 |
Dam Length |
600 |
Dam Height |
24 |
River Or Stream |
ANTELOPE CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
24 |
Nid Storage |
85 |
Hazard Potential |
Low |
Nid Height |
24 |
Seasonal Comparison
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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.
Upper O'Dell Coulee Reservoir