Jordan Reservoir #2 Reservoir Report
Nearby: Jordan Reservoir #1 Thorn
Last Updated: December 6, 2025
Jordan Reservoir #2, located in McCone, Montana, is a privately owned earth dam constructed in 1936 by the USDA NRCS for irrigation purposes on Trail Creek.
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Summary
With a dam height of 18 feet and a storage capacity of 226 acre-feet, this reservoir plays a crucial role in water management in the region. It is regulated by the DNRC and is subject to state permitting, inspection, and enforcement.
Despite being rated as low hazard potential and not yet assessed for condition, Jordan Reservoir #2 remains a valuable water resource in the area. With a normal storage capacity of 167 acre-feet, this reservoir provides essential irrigation water for agricultural activities in the surrounding areas. Although lacking in certain details such as spillway type and inspection frequency, the reservoir continues to serve its primary purpose effectively.
As water resource and climate enthusiasts, the significance of Jordan Reservoir #2 lies in its contribution to sustaining agricultural practices in the region. Managed by private owners and designed by the USDA NRCS, this earth dam stands as a testament to the collaborative efforts in water infrastructure development. With its historical completion in 1936 and ongoing regulatory oversight by the DNRC, this reservoir remains a vital component of the water management system in McCone County, Montana.
Year Completed |
1936 |
Dam Length |
400 |
Dam Height |
18 |
River Or Stream |
TRAIL CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
18 |
Nid Storage |
226 |
Hazard Potential |
Low |
Nid Height |
18 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Redwater River At Circle Mt
|
1cfs |
Nelson Creek Near Van Norman Mt
|
33cfs |
Yellowstone River At Glendive Mt
|
6000cfs |
Yellowstone River At Miles City Mt
|
8100cfs |
Missouri River Near Wolf Point Mt
|
5020cfs |
Tongue River At Miles City Mt
|
263cfs |
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.
Jordan Reservoir #2