Dykstra Number 2 Reservoir Report
Nearby: Dykstra Number 3 Richardson Number 1
Last Updated: December 8, 2025
Dykstra Number 2 is a privately owned earth dam located in Jones, South Dakota, along the TR-White River.
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Summary
Built in 1956 by the Natural Resources Conservation Service, this dam stands at a height of 26 feet and has a length of 420 feet, with a storage capacity of 87 acre-feet. Despite being designated as low hazard potential, the dam is regulated and inspected by the South Dakota Department of Environment and Natural Resources, ensuring its safety and compliance with state regulations.
With a maximum discharge capacity of 1875 cubic feet per second, Dykstra Number 2 plays a crucial role in water resource management in the area, particularly for flood control and irrigation purposes. The dam is not currently rated for its condition, and its emergency action plan status remains unreported. However, its ownership and maintenance by a private entity highlight the importance of collaboration between government agencies and private stakeholders in managing and safeguarding critical water infrastructure in the face of changing climate conditions.
As climate change continues to impact water resources and infrastructure resilience, the monitoring and maintenance of dams like Dykstra Number 2 become increasingly crucial. With the potential for more frequent and severe weather events, ensuring the safety and functionality of such structures is vital for protecting communities downstream and preserving the integrity of the surrounding ecosystem. Through continued regulatory oversight and proactive risk management measures, Dykstra Number 2 stands as a testament to the collaborative efforts needed to adapt to a changing climate and secure our water resources for future generations.
Year Completed |
1956 |
Dam Length |
420 |
Dam Height |
26 |
River Or Stream |
TR-WHITE RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
26 |
Nid Storage |
87 |
Hazard Potential |
Low |
Nid Height |
26 |
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 2