Muppet Reservoir Report
Last Updated: December 5, 2025
Located in Fergus County, Montana, Muppet is a privately owned dam constructed in 1965 with a primary purpose of providing fire protection, stock, and a small fish pond.
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Summary
Situated on Flatwillow Creek, Muppet stands at a height of 10 feet and has a length of 1275 feet, with a storage capacity of 101 acre-feet. Although it is not rated for its condition assessment, Muppet is classified as having a low hazard potential.
Operated and regulated by the Montana Department of Natural Resources and Conservation (DNRC), Muppet is equipped with state-permitting, inspection, and enforcement mechanisms to ensure its safety and compliance with regulations. The dam serves as a vital resource for the local community, offering protection against wildfires and supporting agricultural activities. Despite being privately owned, Muppet plays a crucial role in water resource management and climate resilience in the region.
With its strategic location and purposeful design, Muppet underscores the importance of small-scale water infrastructure in mitigating climate risks and meeting diverse water needs. As a key asset in the area, the dam serves as a testament to the collaboration between private owners and state agencies in safeguarding water resources and enhancing community resilience in the face of changing environmental conditions.
Year Completed |
1965 |
Dam Length |
1275 |
Dam Height |
10 |
River Or Stream |
FLATWILLOW CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
10 |
Nid Storage |
101 |
Hazard Potential |
Low |
Nid Height |
10 |
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.
Muppet