Perault Number 7 Reservoir Report
Nearby: Perault Number 1 Perault Number 6
Last Updated: December 6, 2025
Perault Number 7, located in Jones, South Dakota, is a private earth dam completed in 1953 with a height of 27 feet and a length of 345 feet.
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Summary
The dam has a storage capacity of 22 acre-feet and serves the primary purpose of water resource management on the TR-WHITE RIVER. The dam is regulated by the South Dakota Department of Environment and Natural Resources (DENR) and is subject to state permitting, inspection, and enforcement.
Despite being classified as low hazard potential, the condition of Perault Number 7 has not been rated, and the last inspection date is unknown. The dam lacks an emergency action plan (EAP) and has not been assessed for risk management measures. The Federal agency responsible for design is the Natural Resources Conservation Service, and the dam is not owned or funded by any Federal agency.
Water resource and climate enthusiasts interested in Perault Number 7 can explore its historical significance, construction details, and regulatory oversight in South Dakota. This dam plays a crucial role in managing water resources on the TR-WHITE RIVER and presents an opportunity for further research and assessment of its condition and potential risks.
Year Completed |
1953 |
Dam Length |
345 |
Dam Height |
27 |
River Or Stream |
TR-WHITE RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
27 |
Nid Storage |
22 |
Hazard Potential |
Low |
Nid Height |
27 |
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 7