Coulter #2 Reservoir Report
Nearby: Mckeever, Frank #2 Coulter #1
Last Updated: January 6, 2026
Coulter #2, located in Garfield County, Montana, is a privately owned earth dam designed by the USDA NRCS for irrigation purposes on the TR-Snow Creek.
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Summary
Completed in 1956, this dam stands at a height of 25 feet and has a storage capacity of 82 acre-feet, with a maximum discharge rate of 125 cubic feet per second. With its primary purpose being irrigation, Coulter #2 plays a crucial role in supporting agricultural activities in the region.
Despite its low hazard potential, Coulter #2 is regulated by the DNRC and undergoes state inspection, permitting, and enforcement to ensure its safety and compliance with regulations. The dam has not been rated for its condition assessment, and information on emergency action plans and risk management measures is currently unavailable. The presence of this structure highlights the importance of water resource management and infrastructure maintenance in mitigating potential risks and ensuring the sustainable use of water resources for irrigation and other purposes in the region.
As a part of the larger water infrastructure network in Montana, Coulter #2 serves as a key component in the management of water resources for agricultural activities. Its construction and operation demonstrate the collaboration between private owners and government agencies like the USDA NRCS in providing essential water supply for irrigation. Moving forward, continued monitoring and maintenance of Coulter #2 will be essential to ensure its long-term functionality and safety for the surrounding community and environment.
Year Completed |
1956 |
Dam Length |
100 |
Dam Height |
25 |
River Or Stream |
TR-SNOW CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Drainage Area |
1 |
Nid Storage |
82 |
Hazard Potential |
Low |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Musselshell River At Mosby Mt
|
225cfs |
Flatwillow Creek Near Mosby Mt
|
17cfs |
Nelson Creek Near Van Norman Mt
|
33cfs |
Milk River At Tampico Mt
|
123cfs |
Beaver Cr Bl Guston Coulee Nr Saco Mt
|
67cfs |
Milk River At Nashua Mt
|
233cfs |
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.
Coulter #2