Frey Reservoir Report
Nearby: Dreves Conover #1
Last Updated: December 5, 2025
Frey, located in Yellowstone, Montana, is a small earth dam completed in 1930 primarily for fire protection, stock, and small fish pond purposes.
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Summary
Owned privately, this dam is regulated by the Montana Department of Natural Resources and Conservation (DNRC), with state jurisdiction, permitting, inspection, and enforcement in place. With a low hazard potential and a height of 15 feet, Frey has a storage capacity of 77 acre-feet, with a normal storage of 40 acre-feet.
Despite being a relatively small structure, Frey plays a crucial role in providing essential water resources for fire protection and livestock in the region. Situated along a coulee in Montana, this dam stands as a testament to early 20th-century water resource management efforts. With its strategic location and purposeful design, Frey continues to serve its intended functions while maintaining a low hazard potential and a condition assessment of "Not Rated".
For water resource and climate enthusiasts, Frey offers a fascinating glimpse into the historical development of water infrastructure in Montana. Its construction in 1930 reflects the importance of sustainable water management practices even in smaller-scale projects. As a privately owned dam with state regulation and oversight, Frey exemplifies the collaborative efforts required to ensure the effective and safe utilization of water resources for various purposes, such as fire protection and livestock maintenance.
Year Completed |
1930 |
Dam Length |
100 |
Dam Height |
15 |
River Or Stream |
COULEE |
Primary Dam Type |
Earth |
Hydraulic Height |
15 |
Nid Storage |
77 |
Hazard Potential |
Low |
Nid Height |
15 |
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.
Frey