Dry Fork Fairhaven #1 Reservoir Report
Nearby: Dry Fork Fairhaven #2 Webb #1
Last Updated: December 5, 2025
Dry Fork Fairhaven #1 is a state-regulated dam located in Cascade, Montana, specifically in the city of ULM.
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Summary
Built in 1947, this earth dam stands at 8 feet high and has a length of 500 feet, providing essential water storage for fire protection, stock, and small fish pond purposes. Situated on the Dry Fork Little Muddy Creek, this dam has a storage capacity of 150 acre-feet and is primarily overseen by the Montana Department of Natural Resources and Conservation (DNRC).
Despite being deemed as low hazard potential, the condition of Dry Fork Fairhaven #1 is currently not rated. The dam has not been inspected recently, and there is no information available on its emergency action plan (EAP) status or risk assessment. However, with its critical role in water resource management and potential impacts on the surrounding area, it is essential for stakeholders and enthusiasts to advocate for regular inspections, maintenance, and emergency preparedness measures to ensure the safety and sustainability of this vital infrastructure.
For water resource and climate enthusiasts, Dry Fork Fairhaven #1 serves as a significant example of the intersection between water management, infrastructure, and environmental stewardship. By understanding and monitoring the status of dams like this one, enthusiasts can contribute to the preservation of water resources, mitigation of climate-related risks, and the overall resilience of communities that rely on such infrastructure for various purposes.
Year Completed |
1947 |
Dam Length |
500 |
Dam Height |
8 |
River Or Stream |
DRY FORK LITTLE MUDDY CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
8 |
Nid Storage |
150 |
Hazard Potential |
Low |
Nid Height |
8 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Missouri River At Cascade Mt
|
3110cfs |
Sun River Near Vaughn Mt
|
2680cfs |
Missouri River Near Ulm Mt
|
3150cfs |
Muddy Creek At Vaughn Mt
|
86cfs |
Sun River At Simms Mt
|
1620cfs |
Smith River Near Eden Mt
|
119cfs |
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.
Dry Fork Fairhaven #1