Dato Reservoir Report
Nearby: Fowl Mouth Ratzburg,M
Last Updated: December 5, 2025
Dato is a private water resource located in Loma, Montana, specifically on the TR-FAVOT COULEE river or stream.
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Summary
Constructed in 1960, this earth dam stands at 15 feet in height and spans 600 feet in length, with a storage capacity of 85 acre-feet. The primary purpose of Dato is for fire protection, stock, or a small fish pond, serving as a crucial resource for the local community.
Managed by the Montana Department of Natural Resources and Conservation (DNRC), Dato is regulated and inspected regularly to ensure its structural integrity and safety. With a low hazard potential and a condition assessment that is currently not rated, Dato is a vital asset for water supply and management in the area. Despite not being under the jurisdiction of the US Army Corps of Engineers, Dato continues to play a significant role in water resource management in Pondera County.
With its location in a rural setting and its focus on multiple purposes such as fire protection and stock watering, Dato exemplifies the importance of small-scale water infrastructure in sustaining local ecosystems and communities. As climate change continues to impact water resources, structures like Dato serve as essential components in ensuring water security and resilience in the face of changing environmental conditions.
Year Completed |
1960 |
Dam Length |
600 |
Dam Height |
15 |
River Or Stream |
TR-FAVOT COULEE |
Primary Dam Type |
Earth |
Hydraulic Height |
15 |
Nid Storage |
85 |
Hazard Potential |
Low |
Nid Height |
15 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Marias River Near Shelby Mt
|
305cfs |
Teton River Near Dutton Mt
|
83cfs |
Marias River Near Chester Mt
|
249cfs |
Lake Creek Near Power Mt
|
30cfs |
Cut Bank Creek At Cut Bank Mt
|
138cfs |
Muddy Creek At Vaughn Mt
|
86cfs |
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.
Dato