J-5 Ranch #2 Reservoir Report
Nearby: Schoolhouse #2 J-5 Ranch #3
Last Updated: December 5, 2025
J-5 Ranch #2, located in Phillips County, Montana, is a privately owned earth dam completed in 1950 for fire protection, stock, and small fish pond purposes.
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Summary
With a dam height of 14 feet and a storage capacity of 113 acre-feet, this low hazard potential structure serves as a crucial resource for water management in the area. The dam is regulated and inspected by the Montana Department of Natural Resources and Conservation (DNRC) to ensure its safety and compliance with state regulations.
Situated on TR-White Rock Coulee, J-5 Ranch #2 plays a vital role in providing water for agricultural and livestock use while also serving as a source of fire protection in the region. Despite its low hazard potential, the dam's condition is currently rated as 'Not Rated,' indicating the need for further evaluation and assessment. Additionally, the structure has not undergone recent inspections or maintenance, highlighting the importance of regular monitoring and upkeep to ensure its long-term functionality and safety.
As a key feature in the water resource infrastructure of the area, J-5 Ranch #2 serves as a testament to the importance of proper dam management and maintenance in sustaining water supplies and protecting against potential hazards. With its strategic location and multi-purpose functionality, the dam stands as a cornerstone in the local ecosystem, supporting various water-related activities and contributing to the overall resilience of the region's water resources in the face of changing climate conditions.
Year Completed |
1950 |
Dam Length |
120 |
Dam Height |
14 |
River Or Stream |
TR-WHITE ROCK COULEE |
Primary Dam Type |
Earth |
Hydraulic Height |
14 |
Nid Storage |
113 |
Hazard Potential |
Low |
Nid Height |
14 |
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.
J-5 Ranch #2