Cinnamon #6 Reservoir Report
Nearby: Deadmans Basin Water Supply Canal Storage Reservoir #5 Deadmans Basin Water Supply Canal Storage Reservoir #6
Last Updated: December 5, 2025
Cinnamon #6 is a privately owned earth dam located in Shawmut, Montana, with a primary purpose of providing fire protection, stock, and a small fish pond.
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Summary
Completed in 1967, the dam stands at a height of 15 feet and has a storage capacity of 168 acre-feet. The dam is regulated by the Montana Department of Natural Resources and Conservation (DNRC) and is inspected regularly to ensure its safety and compliance with state regulations.
Situated on diffused surface water, Cinnamon #6 serves as a crucial water resource for the area, particularly for fire protection and livestock needs. With a low hazard potential and a condition assessment that is currently not rated, the dam plays a significant role in managing water resources in Wheatland County, Montana. Despite its modest size and purpose, Cinnamon #6 contributes to the overall water infrastructure of the region and is an important asset for local water management.
As a key component of the water infrastructure in the area, Cinnamon #6 is a vital resource for maintaining water supply and ensuring water security in Shawmut, Montana. With its regulated status and regular inspections, the dam exemplifies the commitment to water safety and management in the region. For water resource and climate enthusiasts, understanding the role of structures like Cinnamon #6 is essential in recognizing the interconnectedness of water systems and the importance of sustainable water management practices.
Year Completed |
1967 |
Dam Length |
200 |
Dam Height |
15 |
River Or Stream |
DIFFUSED SURFACE WATER |
Primary Dam Type |
Earth |
Hydraulic Height |
15 |
Nid Storage |
168 |
Hazard Potential |
Low |
Nid Height |
15 |
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.
Cinnamon #6