D G Orchowski #2 Reservoir Report
Nearby: D S Scott #2 D G Orchowski #1
Last Updated: December 5, 2025
D G Orchowski #2 is a privately-owned earth dam located in Big Horn, Montana, along the TR-Little Bighorn River.
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Summary
Built in 1958, this dam serves multiple purposes including fire protection, stock, and a small fish pond. With a height of 30 feet and a length of 150 feet, the dam has a storage capacity of 86 acre-feet, with a normal storage level of 62 acre-feet. It is regulated by the Montana Department of Natural Resources and Conservation (DNRC) and has a low hazard potential.
Despite being classified as "Not Rated" in terms of condition assessment, D G Orchowski #2 remains a vital structure for the local community in Hardin, Montana. The dam's location and purpose make it an integral part of the region's water resource management system, ensuring a reliable water supply for fire protection and agricultural activities. With state jurisdiction, inspection, and enforcement in place, the dam is well-maintained and monitored to mitigate any potential risks.
Overall, D G Orchowski #2 exemplifies the importance of private infrastructure in water resource management and climate resilience efforts. As a key component of the local water infrastructure, this dam plays a crucial role in supporting the community's needs while also highlighting the collaboration between private owners and state regulatory agencies to ensure the safety and efficiency of water management systems in Montana. With its low hazard potential and state-regulated status, D G Orchowski #2 stands as a testament to the careful planning and maintenance of water resources in the region.
Year Completed |
1958 |
Dam Length |
150 |
Dam Height |
30 |
River Or Stream |
TR-LITTLE BIGHORN RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
30 |
Nid Storage |
86 |
Hazard Potential |
Low |
Nid Height |
30 |
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.
D G Orchowski #2