Jim Judisch Reservoir Report
Last Updated: December 5, 2025
Jim Judisch, located in Toole, Montana, is a private earth dam designed by the USDA NRCS in 1977 for fire protection, stock, and small fish pond purposes.
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Summary
Situated on the TR-MARIAS RIVER, this dam has a height of 20 feet and a length of 450 feet, with a storage capacity of 59 acre-feet. Despite its low hazard potential and not yet rated condition assessment, Jim Judisch is regulated and permitted by the Montana Department of Natural Resources and Conservation (DNRC), ensuring regular inspections and enforcement to maintain its safety and functionality.
Owned privately, Jim Judisch serves as a crucial water resource in the area, with a drainage area of 3.45 square miles and a maximum discharge of 250 cubic feet per second. The dam's spillway width of 50 feet further enhances its ability to manage water flow and prevent potential flooding. Managed by the Natural Resources Conservation Service, Jim Judisch plays a vital role in fire protection, livestock management, and small-scale fisheries, highlighting its multifunctional significance in the local ecosystem.
Although currently not rated in terms of condition assessment, Jim Judisch stands as a reliable and essential infrastructure for water conservation and management in Toole, Montana. With its regulated status and maintained by the DNRC, this dam continues to provide critical benefits for the community, ensuring water security and environmental sustainability for the region. As a key component of the local water resource system, Jim Judisch exemplifies the importance of proper dam regulation and management in mitigating risks and enhancing resilience to climate change impacts.
Year Completed |
1977 |
Dam Length |
450 |
Dam Height |
20 |
River Or Stream |
TR-MARIAS RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Drainage Area |
3.45 |
Nid Storage |
59 |
Hazard Potential |
Low |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Marias River Near Shelby Mt
|
305cfs |
Marias River Near Chester Mt
|
249cfs |
Teton River Near Dutton Mt
|
83cfs |
Cut Bank Creek At Cut Bank Mt
|
138cfs |
Lake Creek Near Power Mt
|
30cfs |
Muddy Creek At Vaughn Mt
|
86cfs |
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.
Jim Judisch