Wolf Coulee Dam Reservoir Report
Nearby: Dougcliff Reservoir Pishkun Dike 1
Last Updated: December 25, 2025
Wolf Coulee Dam, also known as Teton Prairie Dam, is a privately owned structure located in Teton, Montana.
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Summary
Completed in 2004, this earth dam stands at a height of 37.6 feet and serves primarily for irrigation purposes along the Wolf Coulee river. With a storage capacity of 279 acre-feet, it plays a vital role in supporting agricultural activities in the region.
Managed by the Montana Department of Natural Resources and Conservation (DNRC), Wolf Coulee Dam is regulated, inspected, and enforced by the state authorities to ensure its safety and compliance with regulations. Despite being designated as "Significant" in terms of hazard potential, the dam's condition is currently "Not Rated," indicating a need for further assessment. While the dam lacks certain features such as spillways and locks, its presence contributes significantly to water resource management in the area.
Located in Congressional District 00, Montana, Wolf Coulee Dam is a noteworthy structure in the region's water infrastructure landscape. With its strategic positioning and role in irrigation, the dam serves as a vital resource for the local community and underscores the importance of sustainable water management practices in the face of changing climate conditions. Its completion marked a significant milestone in enhancing water supply reliability and agricultural productivity in the Wolf Coulee area.
Year Completed |
2004 |
Dam Height |
37.6 |
River Or Stream |
WOLF COULEE |
Primary Dam Type |
Earth |
Hydraulic Height |
34.9 |
Nid Storage |
279 |
Structural Height |
37.6 |
Hazard Potential |
Significant |
Nid Height |
38 |
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.
Wolf Coulee Dam