Muddy Spots Reservoir Report
Nearby: Neuman #2 Neuman Dam
Last Updated: December 5, 2025
Muddy Spots is a privately owned dam located in Cascade, Montana, specifically in the city of Black Eagle.
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Summary
Completed in 1938, this earth dam serves primarily for water supply purposes along the TR-Muddy Creek. With a height of 20 feet and a storage capacity of 317 acre-feet, Muddy Spots plays a crucial role in water resource management in the area.
Managed by the Montana Department of Natural Resources and Conservation (DNRC), Muddy Spots is regulated, permitted, inspected, and enforced by the state authorities. Despite its low hazard potential and the fact that it has not been rated for condition assessment, the dam continues to provide reliable water supply to the surrounding community. The dam's location in Congressional District 00, represented by Greg Gianforte, underlines its significance in the local water infrastructure.
The dam's significance is further highlighted by its location in the Omaha District of the US Army Corps of Engineers, although it is not directly managed by the USACE. With its historical construction and ongoing role in water supply, Muddy Spots stands as a testament to the importance of maintaining and monitoring our water resources in the face of changing climate conditions.
Year Completed |
1938 |
Dam Length |
1520 |
Dam Height |
20 |
River Or Stream |
TR-MUDDY CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Nid Storage |
317 |
Hazard Potential |
Low |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Muddy Creek At Vaughn Mt
|
86cfs |
Lake Creek Near Power Mt
|
30cfs |
Sun River Near Vaughn Mt
|
2680cfs |
Missouri River Near Ulm Mt
|
3150cfs |
Teton River Near Dutton Mt
|
83cfs |
Sun River At Simms Mt
|
1620cfs |
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.
Muddy Spots