Brewer #3 Reservoir Report
Nearby: Brewer #2 French #12
Last Updated: December 6, 2025
Brewer #3, located in Kinsey, Montana, is a state-regulated earth dam completed in 1950 for fire protection, stock, and small fish pond purposes.
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Summary
The dam stands at a height of 28 feet and has a storage capacity of 83 acre-feet, serving as a crucial water resource for the area. Situated on the TR-South Sunday Creek, this dam plays a vital role in managing water supply and ensuring water availability for various uses in the region.
Despite being classified as low hazard potential, Brewer #3 has not been rated for its condition assessment, highlighting the need for regular inspections and maintenance to ensure its long-term functionality. The dam is under the jurisdiction of the Montana Department of Natural Resources and Conservation (DNRC), with state permitting, inspection, and enforcement in place to oversee its operations. While the dam does not have a detailed emergency action plan (EAP) in place, it remains a key infrastructure for water management in Custer County, Montana.
As an essential component of the local water infrastructure, Brewer #3 serves as a critical water source for fire protection and livestock needs in the area. With its strategic location on the TR-South Sunday Creek, the dam contributes to water storage and supply management, supporting various water-dependent activities in Kinsey and surrounding areas. The dam's historical significance, combined with its ongoing role in water resource management, underscores the importance of continued monitoring and maintenance to ensure its long-term functionality and resilience in the face of changing climate conditions.
Year Completed |
1950 |
Dam Length |
150 |
Dam Height |
28 |
River Or Stream |
TR-SOUTH SUNDAY CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
28 |
Nid Storage |
83 |
Hazard Potential |
Low |
Nid Height |
28 |
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.
Brewer #3