Dalhke Ranch Number 2 Reservoir Report
Last Updated: December 9, 2025
Dalhke Ranch Number 2 is a privately owned dam located in Jones, South Dakota, along the TR-White River.
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Summary
Built in 1953, this earth dam stands at a height of 27 feet and has a maximum storage capacity of 21 acre-feet. The dam serves multiple purposes, including flood control, irrigation, and water supply for the surrounding area. Despite being in a state-regulated jurisdiction with permitting, inspection, and enforcement in place, the dam is currently rated as "Not Rated" in terms of condition assessment, with a low hazard potential.
Managed by the Natural Resources Conservation Service, Dalhke Ranch Number 2 plays a crucial role in water resource management in the region. With a maximum discharge capacity of 1638 cubic feet per second, the dam helps mitigate flooding risks and ensures a stable water supply for agricultural activities. Although the dam has not been inspected recently and lacks a formal Emergency Action Plan, its low hazard potential suggests a relatively low risk of failure. However, further evaluation and maintenance may be needed to ensure its long-term safety and functionality.
In the political landscape, Dalhke Ranch Number 2 falls under the jurisdiction of Dusty Johnson (R), the representative for the area. As a key infrastructure for water resource management, the dam highlights the importance of proactive maintenance and monitoring to safeguard against potential risks and ensure the sustainable use of water resources in the region. By staying informed and engaged in the dam's condition and regulatory framework, water resource and climate enthusiasts can contribute to the preservation and efficient utilization of this vital water infrastructure.
Year Completed |
1953 |
Dam Length |
348 |
Dam Height |
27 |
River Or Stream |
TR-WHITE RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
27 |
Nid Storage |
21 |
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.
Dalhke Ranch Number 2