Halvor #2 Reservoir Report
Nearby: Halvor #1 Pr-161 Retention Dam
Last Updated: December 5, 2025
Halvor #2 is a privately owned earth dam located in Dodson, Montana, along the TR-Rudolph Coulee river.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1925, this dam stands at a height of 20 feet and has a storage capacity of 188 acre-feet, primarily serving the purposes of fire protection, stock, and small fish pond management. With a low hazard potential and a condition assessment of "Not Rated," this dam is regulated by the Montana Department of Natural Resources and Conservation (DNRC) and undergoes regular inspections, permitting, and enforcement to ensure its safety and functionality.
Situated in Phillips County, Montana, Halvor #2 is managed by private owners and has not been modified in recent years. Although details on surface area, drainage area, spillway type, and other structural features are not provided, the dam's primary focus on fire protection and water storage for livestock makes it a crucial resource in the region. With its location in a semi-arid climate, this dam contributes to the sustainable management of water resources and supports local ecosystems by providing a reliable water source for various uses.
Halvor #2, with its historical significance dating back almost a century, showcases the importance of earth dams in supporting water conservation efforts and enhancing the resilience of communities in arid regions like Montana. As water resource and climate enthusiasts, understanding the role of structures like Halvor #2 in maintaining water security and supporting biodiversity underscores the vital links between infrastructure, ecology, and climate adaptation. With continued monitoring and regulation by state agencies, this dam serves as a valuable asset for water management and environmental stewardship in the region.
Year Completed |
1925 |
Dam Length |
300 |
Dam Height |
20 |
River Or Stream |
TR-RUDOLPH COULEE |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Nid Storage |
188 |
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.
Halvor #2