Olson Ranches Inc. #10 Reservoir Report
Nearby: Olson Ranches Inc. #9 Knox Number 2
Last Updated: December 6, 2025
Olson Ranches INC.
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Summary
#10 is a privately owned dam located in Jones, South Dakota, along the TR-BAD River. This earth dam, completed in 1956, stands at a height of 28 feet and stretches 425 feet in length. With a storage capacity of 59 acre-feet, the dam serves to regulate water flow and provide essential water resources for the surrounding area. The dam is under state jurisdiction and regulation, with the South Dakota Department of Environment and Natural Resources overseeing permitting, inspection, and enforcement.
Despite being classified as having a low hazard potential, Olson Ranches INC. #10 has not been rated for its condition assessment. Emergency action plans, risk assessments, and inundation maps have not been prepared or updated for this structure. The dam is not owned or funded by federal agencies, but its design was carried out by the Natural Resources Conservation Service. The dam plays a crucial role in water management and conservation efforts in the region, ensuring a stable water supply for agricultural and environmental purposes. Climate and water resource enthusiasts will find Olson Ranches INC. #10 a fascinating example of private dam ownership and management in South Dakota.
Year Completed |
1956 |
Dam Length |
425 |
Dam Height |
28 |
River Or Stream |
TR-BAD RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
28 |
Nid Storage |
59 |
Hazard Potential |
Low |
Nid Height |
28 |
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. #10