Perault Number 3 Reservoir Report
Nearby: Perault Number 2 Perault Number 4
Last Updated: December 7, 2025
Perault Number 3 is a privately owned earth dam located in Jones, South Dakota, along the TR-White River.
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Summary
Built in 1960, this dam stands at 28 feet tall and spans 261 feet in length, with a storage capacity of 32 acre-feet. Managed by the Natural Resources Conservation Service, this dam is regulated by the South Dakota Department of Environment and Natural Resources, ensuring regular inspections and enforcement of safety measures.
Despite its low hazard potential and current "Not Rated" condition assessment, Perault Number 3 plays a crucial role in water resource management in the region. With a maximum discharge capacity of 441 cubic feet per second, this dam contributes to flood control and water supply for the surrounding area. While it may not have an Emergency Action Plan in place or updated inundation maps, its presence helps mitigate potential risks and ensures the safety of nearby communities.
As a key infrastructure component in the St. Paul District, Perault Number 3 stands as a testament to the importance of proper dam regulation and maintenance in safeguarding water resources and adapting to changing climate conditions. Its location in a rural area highlights the vital role that private owners and state agencies play in managing and monitoring dams to protect both people and the environment.
Year Completed |
1960 |
Dam Length |
261 |
Dam Height |
28 |
River Or Stream |
TR-WHITE RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
28 |
Nid Storage |
32 |
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.
Perault Number 3