Richey Reservoir Report
Nearby: Johnston Johnstone Pasture
Last Updated: December 6, 2025
The Richey, Roy dam in Montana, completed in 1938, serves the primary purpose of irrigation along the TR-PASTURE CREEK.
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Summary
Owned privately, this earth dam stands at a height of 20 feet and has a storage capacity of 135 acre-feet. With a low hazard potential and not yet rated in terms of condition assessment, the dam is regulated, permitted, inspected, and enforced by the Montana Department of Natural Resources and Conservation (DNRC).
Located in Dawson County, Montana, the Richey, Roy dam is a vital infrastructure for water resource management in the region. With its historical significance dating back to the pre-World War II era, the dam continues to support agricultural activities by providing water for irrigation purposes. Despite its age, the dam's low hazard potential indicates a relatively stable condition, although a formal condition assessment is yet to be conducted.
As a significant feature in the local water management system, the Richey, Roy dam plays a crucial role in supporting the irrigation needs of the area. With its regulated status and oversight by state authorities, the dam ensures the efficient and safe distribution of water resources for agricultural use. As water resource and climate enthusiasts, understanding the role and condition of dams like the Richey, Roy is essential for promoting sustainable water management practices and ensuring the resilience of water infrastructure in the face of changing climate conditions.
Year Completed |
1938 |
Dam Length |
350 |
Dam Height |
20 |
River Or Stream |
TR-PASTURE CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Nid Storage |
135 |
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.
Richey, Roy