Noble (Custer) Reservoir Report
Nearby: Stiles #1 Hall (Custer)
Last Updated: December 6, 2025
Noble (Custer) is a privately owned irrigation dam located in Kinsey, Montana, within Custer County.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1936, this earth dam stands at a height of 25 feet and has a storage capacity of 280 acre-feet for the primary purpose of irrigation. Situated on Tree Creek, Noble (Custer) plays a crucial role in providing water resources for agricultural activities in the area.
Managed and regulated by the Montana Department of Natural Resources and Conservation (DNRC), Noble (Custer) is deemed to have a significant hazard potential, although its condition assessment is currently not rated. Despite not having a designated emergency action plan (EAP) or inundation maps prepared, the dam undergoes regular state inspections and enforcement measures to ensure its safety and functionality. With a hydraulic height of 20 feet and a length of 640 feet, Noble (Custer) remains a key infrastructure for water management in the region.
For water resource and climate enthusiasts, Noble (Custer) presents a fascinating case study of a historic irrigation dam that continues to serve its intended purpose after several decades of operation. Its location, design, and regulatory oversight by the state of Montana provide valuable insights into the challenges and opportunities associated with managing water resources in a changing climate. As efforts to assess and improve the dam's safety and resilience continue, Noble (Custer) remains a vital piece of infrastructure for sustaining agricultural practices in the area.
Year Completed |
1936 |
Dam Length |
640 |
Dam Height |
25 |
River Or Stream |
TREE CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Nid Storage |
280 |
Hazard Potential |
Significant |
Nid Height |
25 |
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.
Noble (Custer)