Neuman #2 Reservoir Report
Nearby: Neuman Dam Muddy Spots
Last Updated: December 5, 2025
Neuman #2 is a private dam located in Cascade County, Montana, near the city of Vaughn.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1930, the dam serves multiple purposes including fire protection, stock, and small fish pond. It has a height of 25 feet and a storage capacity of 67 acre-feet, with a normal storage level of 43 acre-feet. The dam is situated on TR-Muddy Creek and is regulated by the Montana Department of Natural Resources and Conservation (DNRC).
Despite being classified as having a low hazard potential, the condition of Neuman #2 has not been formally assessed. The dam, constructed of earth materials, spans 250 feet in length and stands at a structural height of 25 feet. While it has not been modified in recent years, the dam does have state-regulated permits for operation, inspection, and enforcement. It falls under the jurisdiction of the Walla Walla District of the US Army Corps of Engineers and is represented by Congressman Greg Gianforte.
Water resource and climate enthusiasts would find Neuman #2 an intriguing site for its historical significance and multifunctional use. The dam's proximity to Vaughn and location on TR-Muddy Creek make it a valuable asset for fire protection and water storage in the region. With its low hazard potential and state-regulated oversight, Neuman #2 stands as a testament to early 20th-century engineering practices and continues to play a vital role in managing water resources in Montana.
Year Completed |
1930 |
Dam Length |
250 |
Dam Height |
25 |
River Or Stream |
TR-MUDDY CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Nid Storage |
67 |
Hazard Potential |
Low |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Muddy Creek At Vaughn Mt
|
86cfs |
Sun River Near Vaughn Mt
|
2680cfs |
Lake Creek Near Power Mt
|
30cfs |
Missouri River Near Ulm Mt
|
3160cfs |
Sun River At Simms Mt
|
1620cfs |
Teton River Near Dutton Mt
|
83cfs |
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.
Neuman #2