Gertrude Reservoir Report
Last Updated: December 6, 2025
Gertrude, a privately owned dam located in Hinsdale, Montana, serves a variety of purposes including fire protection, stock watering, and serving as a small fish pond.
°F
°F
mph
Wind
%
Humidity
Summary
Completed in 1945, this earth dam stands at a height of 20 feet and has a storage capacity of 103 acre-feet. Situated on the TR-WHITE CREEK, Gertrude plays a crucial role in regulating water flow and providing essential resources for the surrounding area.
Managed by the Montana Department of Natural Resources and Conservation (DNRC), Gertrude is subject to state regulations and inspections to ensure its operational safety. With a low hazard potential and a condition assessment that is currently not rated, Gertrude remains a reliable structure for water resource management in the region. Although the dam has not been modified in recent years, its importance in maintaining water supply for firefighting and livestock watering cannot be understated.
As an integral part of the local water infrastructure, Gertrude exemplifies the importance of private ownership in water resource management. Its strategic location in Phillips County, Montana, and its contribution to the surrounding ecosystem highlight the vital role that dams play in sustaining water resources and climate resilience in the region. For water resource and climate enthusiasts, Gertrude serves as a compelling example of the intersection between human infrastructure and environmental sustainability.
Year Completed |
1945 |
Dam Length |
300 |
Dam Height |
20 |
River Or Stream |
TR-WHITE CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Nid Storage |
103 |
Hazard Potential |
Low |
Nid Height |
20 |
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.
Gertrude