Dalhke Ranch Number 3 Reservoir Report
Last Updated: December 10, 2025
Dalhke Ranch 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 1958 by the Natural Resources Conservation Service, this dam stands at a height of 30 feet and has a storage capacity of 54 acre-feet, with a normal storage level of 35 acre-feet. The dam has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment.
Despite being state regulated by DENR and having undergone state permitting, inspection, and enforcement processes, Dalhke Ranch Number 3 has not had its emergency action plan (EAP) updated or evaluated for compliance with guidelines. The dam does not have inundation maps prepared, and there is no risk assessment or risk management measures currently in place. The dam is not owned or funded by any federal agencies and has not been modified or inspected in recent years.
Overall, Dalhke Ranch Number 3 serves as a critical water resource infrastructure for the area, providing water storage and flood control along the TR-White River. However, there are areas of improvement needed in terms of emergency preparedness and risk assessment to ensure the safety and integrity of the dam for the surrounding community and environment.
Year Completed |
1958 |
Dam Length |
297 |
Dam Height |
30 |
River Or Stream |
TR-WHITE RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
30 |
Nid Storage |
54 |
Hazard Potential |
Low |
Nid Height |
30 |
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.
Dalhke Ranch Number 3