Olson Ranches Inc. #2 Reservoir Report
Nearby: Olson Ranches Inc. #1 Stirling #2
Last Updated: December 6, 2025
Olson Ranches INC.
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Summary
#2 is a privately owned dam located in Jones, South Dakota, along the TR-BAD River. Constructed in 1958 by the Natural Resources Conservation Service, this earth dam stands at a height of 29 feet and has a storage capacity of 23 acre-feet. With a low hazard potential and a condition assessment that is currently not rated, this dam plays a crucial role in water resource management in the region.
Managed by the South Dakota Department of Environment and Natural Resources, Olson Ranches INC. #2 is subject to state regulations, permitting, inspection, and enforcement. Despite not having a designated primary purpose or specific purposes listed, the dam serves as a vital infrastructure for flood control, irrigation, and water supply in the area. Its location in a rural setting and the absence of associated structures make it a key asset for the local community.
With a history spanning over six decades and a maximum discharge capacity of 357 cubic feet per second, Olson Ranches INC. #2 continues to contribute to the sustainability of water resources and climate resilience in South Dakota. As climate change impacts become more pronounced, the importance of well-maintained dams like this one in managing water availability and mitigating risks associated with extreme weather events cannot be understated.
Year Completed |
1958 |
Dam Length |
277 |
Dam Height |
29 |
River Or Stream |
TR-BAD RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
29 |
Nid Storage |
23 |
Hazard Potential |
Low |
Nid Height |
29 |
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.
Olson Ranches Inc. #2