Arbuckle #2 Reservoir Report
Nearby: Little Boy Blue Oliver, J. #1
Last Updated: December 5, 2025
Arbuckle #2 is a privately owned earth dam located in Carter, Montana, along the TR-Little Missouri River.
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Summary
This irrigation structure, completed in 1909, stands at 12 feet tall and spans 1000 feet in length. With a storage capacity of 282 acre-feet, the dam primarily serves the purpose of irrigation in the region. Despite being classified as having a low hazard potential, the dam's condition has not been rated, and there is no recent inspection data available.
Managed by the Montana Department of Natural Resources and Conservation (DNRC), Arbuckle #2 is subject to state regulation, inspection, and enforcement. The dam is situated in a picturesque location, 29 miles from Camp Crook, South Dakota, in a serene rural setting surrounded by the natural beauty of the Montana landscape. While the risk assessment, emergency action plan, and inundation maps for the dam are currently not available, the structure continues to play a vital role in supporting agricultural activities in the area.
As a significant water resource infrastructure in the region, Arbuckle #2 is a testament to the historical legacy of irrigation development in Montana. With its strategic location along the TR-Little Missouri River, the dam contributes to the efficient management of water resources for agricultural purposes. While its condition assessment is pending, the low hazard potential and state-regulated status of the dam indicate a commitment to ensuring its safe operation and maintenance for the benefit of local farmers and the surrounding community.
Year Completed |
1909 |
Dam Length |
1000 |
Dam Height |
12 |
River Or Stream |
TR-LITTLE MISSOURI RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
12 |
Nid Storage |
282 |
Hazard Potential |
Low |
Nid Height |
12 |
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.
Arbuckle #2