Siversten Reservoir Report
Nearby: Dry Fork Maddox Ranch Corporation #1
Last Updated: December 6, 2025
Siversten is a privately owned earth dam located in Chinook, Montana, on Battle Creek.
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Summary
Completed in 1954, this dam serves multiple purposes including fire protection, stock watering, and creating a small fish pond. With a height of 20 feet and a storage capacity of 92 acre-feet, Siversten is classified as a low hazard dam with a condition assessment of "Not Rated."
Managed by the Montana Department of Natural Resources and Conservation (DNRC), Siversten is regulated, permitted, inspected, and enforced by the state. Despite not having a designated inspection frequency or condition assessment date, the dam is considered to meet guidelines for emergency action planning and inundation maps preparation. The location of Siversten in a relatively remote area contributes to its low hazard potential.
For water resource and climate enthusiasts, Siversten offers an intriguing case study in privately owned dam management within the state of Montana. Its multi-purpose design and historical significance provide insight into the challenges and opportunities faced by small-scale water infrastructure projects. As climate change continues to impact water resources, understanding the condition and management of dams like Siversten becomes increasingly critical for ensuring the safety and sustainability of our water supply.
Year Completed |
1954 |
Dam Length |
40 |
Dam Height |
20 |
River Or Stream |
BATTLE CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Nid Storage |
92 |
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.
Siversten