Jones #4 Reservoir Report
Nearby: Severson #3 Jones #1
Last Updated: December 6, 2025
Jones #4 is a private water resource located in Miles City, Montana, specifically on the TR-Squaw Creek.
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Summary
Built in 1945, this earth dam stands at 22 feet tall and has a storage capacity of 64 acre-feet, primarily used for fire protection, stock, or small fish pond purposes. With a low hazard potential and a state-regulated status, the dam is under the jurisdiction of the Montana Department of Natural Resources and Conservation (DNRC), ensuring that it meets state permitting, inspection, and enforcement requirements.
Despite not being rated for its condition, Jones #4 remains a crucial asset for water management in the area, with a normal storage capacity of 32 acre-feet and a distance of 25 miles from Miles City. The dam's location in Custer County showcases its importance for local water supply and ecosystem health, serving as a testament to the ongoing efforts to maintain and regulate water resources in Montana. With no associated structures and minimal federal involvement, Jones #4 represents a private initiative for sustainable water use and conservation in the region.
As a vital component of the local water infrastructure, Jones #4 contributes to the overall water security and resilience of the Miles City community. With its specific purposes and historical significance, this private earth dam serves as a reminder of the importance of proper water resource management in ensuring the sustainability of both human and environmental needs. Climate enthusiasts and water resource professionals alike can appreciate the role that Jones #4 plays in safeguarding water sources and supporting the diverse uses of water in Montana.
Year Completed |
1945 |
Dam Length |
300 |
Dam Height |
22 |
River Or Stream |
TR-SQUAW CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
22 |
Nid Storage |
64 |
Hazard Potential |
Low |
Nid Height |
22 |
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.
Jones #4