Dunning #2 Reservoir Report
Nearby: Dunning #1 Clark #2
Last Updated: December 5, 2025
Dunning #2, located in Rosebud, Montana, is a privately owned earth dam completed in 1961 by the USDA NRCS.
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Summary
This dam serves multiple purposes, including fire protection and providing water for stock or small fish ponds. With a height of 20 feet and a storage capacity of 110 acre-feet, Dunning #2 is regulated by the state of Montana and inspected regularly by the DNRC to ensure its safety and functionality.
Despite being classified as having a low hazard potential, Dunning #2 carries a moderate risk assessment rating. While the dam has not been rated for its condition, it is crucial that emergency action plans are developed and updated to meet safety guidelines in case of any unforeseen events. With its location on TR-EAGLE CREEK and its proximity to Omaha District, the dam plays a vital role in water resource management in the area.
For water resource and climate enthusiasts, Dunning #2 presents an interesting case study in dam infrastructure and risk management. By understanding the design, purpose, and regulatory oversight of this dam, stakeholders can gain valuable insights into the challenges and considerations involved in maintaining and safeguarding water resources in the face of changing environmental conditions.
Year Completed |
1961 |
Dam Length |
300 |
Dam Height |
20 |
River Or Stream |
TR-EAGLE CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Drainage Area |
0.78 |
Nid Storage |
110 |
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.
Dunning #2