Dykstra Number 6 Reservoir Report
Nearby: Richardson Number 1 Dykstra Number 7
Last Updated: December 8, 2025
Dykstra Number 6 is a privately owned earth dam located in Jones, South Dakota, along the TR-WHITE RIVER.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1952, this dam stands at a height of 34 feet and has a storage capacity of 91 acre-feet, with a normal storage level of 65 acre-feet. Managed by the Natural Resources Conservation Service, Dykstra Number 6 is regulated by the South Dakota Department of Environment and Natural Resources and undergoes regular inspections, enforcement, and permitting processes to ensure its safety and compliance with state regulations.
Despite its low hazard potential and current "Not Rated" condition assessment, Dykstra Number 6 plays a crucial role in water resource management in the area, with a maximum discharge capacity of 375 cubic feet per second. While the dam does not have a spillway or outlet gates, its primary purpose and associated structures remain unspecified in the available data. With Dusty Johnson (R) serving as the Congressional Representative for the area, Dykstra Number 6 stands as a key infrastructure element in the region's water resource and climate management efforts.
As a significant feature in the St. Paul District of the US Army Corps of Engineers, Dykstra Number 6 serves as a vital component in the region's flood control and water storage capabilities. While lacking detailed information on emergency action plans and risk assessment measures, the dam's historical significance and continued role in water resource management make it a site of interest for enthusiasts and professionals alike. With its location in Jones, South Dakota, and proximity to the TR-WHITE RIVER, Dykstra Number 6 represents a tangible link between human infrastructure and natural water systems in the region.
Year Completed |
1952 |
Dam Length |
480 |
Dam Height |
34 |
River Or Stream |
TR-WHITE RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
34 |
Nid Storage |
91 |
Hazard Potential |
Low |
Nid Height |
34 |
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.
Dykstra Number 6