Roy Stout No.2 Reservoir Report
Nearby: Roy Stout No.1 Pat Stout No.1
Last Updated: December 6, 2025
Roy Stout No.2 is a privately-owned earth dam located in South Dakota, specifically in Jackson County.
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Summary
Built in 1953, this dam stands at 17 feet tall and spans 900 feet in length, with a storage capacity of 195 acre-feet. Situated on the TR-Bad River, this dam serves the purpose of regulating water flow and providing irrigation for the surrounding area. Managed by the Natural Resources Conservation Service, Roy Stout No.2 has a low hazard potential and is currently rated as "Not Rated" in terms of its condition assessment.
Despite its age, Roy Stout No.2 remains a vital infrastructure for water resource management in the region. With a maximum discharge capacity of 4500 cubic feet per second, this dam plays a crucial role in flood control and water supply for agricultural purposes. While the dam has not been inspected recently, it is reassuring to note that the state agency in charge of regulation, inspection, and enforcement has jurisdiction over this structure, ensuring its continued safety and functionality.
For water resource and climate enthusiasts, Roy Stout No.2 presents an intriguing case study of a historic earth dam that continues to play a significant role in water management in South Dakota. As climate change brings about more extreme weather events, the importance of structures like Roy Stout No.2 in mitigating flood risks and ensuring water supply becomes even more evident. With proper maintenance and oversight, this dam will continue to be a valuable asset for both the local community and the environment.
Year Completed |
1953 |
Dam Length |
900 |
Dam Height |
17 |
River Or Stream |
TR-BAD RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
17 |
Nid Storage |
195 |
Hazard Potential |
Low |
Nid Height |
17 |
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.
Roy Stout No.2