Dalhke Ranch Number 6 Reservoir Report
Last Updated: December 8, 2025
Dalhke Ranch Number 6 is a privately owned dam located in Jones, South Dakota, along the TR-White River.
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Summary
Built in 1972 by the Natural Resources Conservation Service, this earth dam stands at 22 feet in height and stretches 510 feet in length. With a storage capacity of 91 acre-feet, the dam serves the primary purpose of water resource management in the area.
Despite its age, Dalhke Ranch Number 6 remains in good condition, with a low hazard potential and a not-yet-rated condition assessment. The dam is regulated by the South Dakota Department of Environment and Natural Resources, which ensures regular inspections, permitting, and enforcement to maintain its structural integrity and safety. Although the dam has not been assessed for emergency action planning, it meets regulatory guidelines and poses minimal risk to surrounding communities.
In the event of any potential hazards, the dam has emergency contacts updated and is equipped with measures to manage risks effectively. With a history of responsible management and oversight, Dalhke Ranch Number 6 stands as a crucial infrastructure for water resource management in South Dakota, contributing to the sustainable development and climate resilience of the region.
Year Completed |
1972 |
Dam Length |
510 |
Dam Height |
22 |
River Or Stream |
TR-WHITE RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
22 |
Nid Storage |
91 |
Hazard Potential |
Low |
Nid Height |
22 |
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 6