Ninemile Dam Lake #1 Reservoir Report
Nearby: Capricorn George Welch
Last Updated: December 20, 2025
Ninemile Dam Lake #1, located in Kremlin, Montana, is a privately owned earth dam that serves multiple purposes such as fire protection, stock watering, and small fish pond.
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Summary
Built in 1940, this dam has a height of 22 feet and a storage capacity of 53 acre-feet. The dam is situated on Ninemile Coulee and is regulated by the Montana Department of Natural Resources and Conservation (DNRC), ensuring proper inspection, enforcement, and permitting processes are in place.
Despite its low hazard potential, Ninemile Dam Lake #1 plays a crucial role in providing essential water resources for the local community. With a normal storage capacity of 34 acre-feet, the dam helps in mitigating drought conditions and supporting various aquatic ecosystems in the area. Additionally, the dam's strategic location in Hill County, Montana, highlights its significance in maintaining water security and sustaining the surrounding environment.
As a part of the Omaha District under the US Army Corps of Engineers, Ninemile Dam Lake #1 stands as a testament to responsible water resource management and infrastructure development. With its historical significance and continued functionality, this dam serves as a vital asset in ensuring water availability for firefighting, agriculture, and wildlife conservation efforts in the region.
Year Completed |
1940 |
Dam Length |
375 |
Dam Height |
22 |
River Or Stream |
NINEMILE COULEE |
Primary Dam Type |
Earth |
Hydraulic Height |
22 |
Nid Storage |
53 |
Hazard Potential |
Low |
Nid Height |
22 |
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.
Ninemile Dam Lake #1