Montana #21 Reservoir Report
Nearby: Pyba Reservoir G Newman #6
Last Updated: December 6, 2025
Montana #21, located in Rosebud County, Montana, is a state-regulated earth dam completed in 1960 for fire protection, stock, and small fish pond purposes.
°F
°F
mph
Wind
%
Humidity
Summary
Situated on Pride Springs Creek, this dam has a height of 12 feet and a storage capacity of 62 acre-feet. With a low hazard potential and a condition assessment of "Not Rated," Montana #21 plays a crucial role in supporting local water resource management and ecosystem health in the area.
Managed by the Montana Department of Natural Resources and Conservation (DNRC), Montana #21 is regularly inspected, permitted, and enforced to ensure its safe operation. The dam's primary purpose of fire protection highlights its significance in mitigating the risk of wildfires in the region. With a capacity to store 18 acre-feet of water during normal conditions, this dam contributes to the overall water security and resilience of the local community, especially during dry seasons and potential emergencies.
While Montana #21's condition assessment is currently "Not Rated," continuous monitoring and maintenance are essential to uphold its safety and functionality. As a key infrastructure for water resource management in the area, this earth dam serves as a vital component in the overall ecosystem and climate resilience efforts. By adhering to state regulations, inspection protocols, and emergency response plans, Montana #21 plays a crucial role in safeguarding the surrounding environment and supporting sustainable water use practices in Montana.
Year Completed |
1960 |
Dam Length |
200 |
Dam Height |
12 |
River Or Stream |
PRIDE SPRINGS CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
12 |
Nid Storage |
62 |
Hazard Potential |
Low |
Nid Height |
12 |
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.
Montana #21