Hauso Reservoir Reservoir Report
Nearby: Mckeever Reservoir Coulter #1
Last Updated: January 8, 2026
Hauso Reservoir, located in Garfield County, Montana, is a privately-owned earth dam completed in 1958 by the USDA NRCS.
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Summary
The reservoir primarily serves the purposes of fire protection, stock watering, and as a small fish pond, with a storage capacity of 72 acre-feet. Situated along the TR-SNOW CREEK, the reservoir covers a drainage area of 1.25 square miles and has a maximum discharge rate of 250 cubic feet per second.
With a low hazard potential and a moderate risk assessment score of 3, Hauso Reservoir is regulated and inspected by the Montana Department of Natural Resources and Conservation (DNRC). The dam stands at a height of 20 feet and spans a length of 200 feet, with an uncontrolled spillway width of 50 feet. While the condition assessment is currently not rated, the reservoir poses minimal risk to surrounding areas. As a key component in the local water resource management system, Hauso Reservoir plays a vital role in ensuring water availability for both agricultural and environmental purposes in the region.
Year Completed |
1958 |
Dam Length |
200 |
Dam Height |
20 |
River Or Stream |
TR-SNOW CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Drainage Area |
1.25 |
Nid Storage |
72 |
Hazard Potential |
Low |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Musselshell River At Mosby Mt
|
225cfs |
Nelson Creek Near Van Norman Mt
|
33cfs |
Milk River At Tampico Mt
|
123cfs |
Flatwillow Creek Near Mosby Mt
|
17cfs |
Beaver Cr Bl Guston Coulee Nr Saco Mt
|
67cfs |
Milk River At Nashua Mt
|
233cfs |
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.
Hauso Reservoir