Crow #2 Reservoir Report
Nearby: John Ball Reservoir Nomland Dam
Last Updated: December 5, 2025
Crow #2 is a privately owned dam located in McCone County, Montana, along the Middle Fork Rock Creek.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1973 by the USDA NRCS, this earth dam stands at a height of 30 feet and serves multiple purposes including fire protection, stock, and small fish pond management. With a storage capacity of 155 acre-feet, Crow #2 plays a crucial role in water resource management in the area.
The dam is regulated by the DNRC and undergoes regular inspections and enforcement to ensure its safety and functionality. Classified as having a significant hazard potential, Crow #2 is a key infrastructure for the local community and provides essential water resources for various purposes. The dam's location in an ecologically sensitive area underscores the importance of its maintenance and management for climate and water resource enthusiasts.
Despite being privately owned, Crow #2 is subject to state permitting and inspection requirements, demonstrating the commitment to ensuring the safety and integrity of the dam. Its proximity to the Middle Fork Rock Creek and its role in providing water storage and management highlights the interconnectedness of water resources and climate resilience. As a noteworthy structure in Montana, Crow #2 serves as a testament to the importance of sustainable water resource management in the face of changing climatic conditions.
Year Completed |
1973 |
Dam Length |
200 |
Dam Height |
30 |
River Or Stream |
MIDDLE FORK ROCK CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
30 |
Drainage Area |
13.22 |
Nid Storage |
155 |
Hazard Potential |
Significant |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Nelson Creek Near Van Norman Mt
|
33cfs |
Milk River At Nashua Mt
|
233cfs |
Redwater River At Circle Mt
|
4cfs |
Missouri River Near Wolf Point Mt
|
5020cfs |
Milk River At Tampico Mt
|
123cfs |
Poplar River Near Poplar Mt
|
28cfs |
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.
Crow #2