W Miller Reservoir Report
Nearby: W Miller #1 Nickwall
Last Updated: December 12, 2025
Located in Poplar, Montana, the W Miller dam serves multiple purposes, including fire protection, stock watering, and as a small fish pond.
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Summary
Built in 1950, this earth dam stands at 12 feet high and spans 300 feet in length, providing a storage capacity of 198 acre-feet. Situated on the TR-Redwater River, the dam is regulated by the state agency DNRC and is under state jurisdiction, with permitting, inspection, and enforcement conducted by Montana authorities.
Despite its low hazard potential and current condition being listed as "Not Rated," the W Miller dam plays a crucial role in water resource management in the region. With a normal storage capacity of 25 acre-feet, the dam contributes to the irrigation of agricultural lands and supports local wildlife habitats. The dam's location within Congressional District 00, Montana, under the representation of Greg Gianforte (R), underscores its importance in the local community.
As water resource and climate enthusiasts, understanding the intricacies of dams like W Miller is vital for comprehending the interconnectedness of water management systems and their impact on the environment. By recognizing the multiple benefits and regulatory frameworks surrounding dams, we can advocate for sustainable practices that ensure the longevity and effectiveness of these vital water infrastructure assets in the face of changing climate conditions.
Year Completed |
1950 |
Dam Length |
300 |
Dam Height |
12 |
River Or Stream |
TR-REDWATER RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
12 |
Nid Storage |
198 |
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.
W Miller