Engdahl #6 Reservoir Report
Nearby: Engdahl #5 Engdahl #7
Last Updated: January 6, 2026
Engdahl #6 is a private earth dam located in Garfield, Montana, near the TR-SNOW CREEK.
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Summary
Built in 1950 by the USDA NRCS, this dam serves multiple purposes including fire protection, stock watering, and small fish pond maintenance. With a height of 23 feet and a length of 400 feet, Engdahl #6 has a storage capacity of 72 acre-feet and a drainage area of 0.35 square miles. Despite its uncontrolled spillway type, the dam is classified as having a low hazard potential and a moderate risk assessment rating.
Owned and regulated by a private entity, Engdahl #6 falls under the jurisdiction of the Montana Department of Natural Resources and Conservation (DNRC). The dam has state permitting, inspection, and enforcement protocols in place to ensure its safe operation and compliance with regulations. Although the dam's condition assessment is currently "Not Rated", its risk management measures and emergency action plan readiness are yet to be determined. While the dam has not been modified in recent years, it remains a crucial asset for local water resource management and climate resilience efforts in the area.
Engdahl #6's strategic location and design make it an essential component for maintaining water security and environmental sustainability in the region. With its primary purposes of fire protection, livestock support, and aquatic habitat enhancement, this earth dam plays a significant role in mitigating potential risks and providing essential water resources for the community. As water resource and climate enthusiasts continue to monitor and assess Engdahl #6, its operational efficiency and regulatory compliance will be key factors in ensuring long-term water management and climate adaptation strategies for the area.
Year Completed |
1950 |
Dam Length |
400 |
Dam Height |
23 |
River Or Stream |
TR-SNOW CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
23 |
Drainage Area |
0.35 |
Nid Storage |
72 |
Hazard Potential |
Low |
Nid Height |
23 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Nelson Creek Near Van Norman Mt
|
33cfs |
Milk River At Nashua Mt
|
233cfs |
Milk River At Tampico Mt
|
123cfs |
Musselshell River At Mosby Mt
|
225cfs |
Beaver Cr Bl Guston Coulee Nr Saco Mt
|
67cfs |
Flatwillow Creek Near Mosby Mt
|
17cfs |
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.
Engdahl #6