Stockton Ranch No. 1 Reservoir Report
Nearby: Stockton Number 1 Monument
Last Updated: December 14, 2025
Stockton Ranch No.
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Summary
1 is a privately owned earth dam located in Jones, South Dakota, along the TR-MEDICINE CREEK. Constructed in 1976 by the USDA NRCS, this dam stands at 25 feet in height and spans 495 feet in length, with a storage capacity of 28 acre-feet. The dam's primary purpose and specific design details are not specified in the data, but it is regulated by the South Dakota Department of Environment and Natural Resources (DENR) and undergoes regular inspections, enforcement, and permitting processes to ensure its safety and compliance with state regulations.
Despite being classified as having a low hazard potential, Stockton Ranch No. 1 is considered to have a moderate risk level, with a risk assessment rating of 3 out of 5. The dam's condition is currently listed as "Not Rated", indicating a need for further evaluation. While no emergency action plan (EAP) or inundation maps have been prepared for this structure, it meets state guidelines for risk management. In the event of any issues or emergencies, Dusty Johnson serves as the local congressional representative for this area, ensuring a point of contact for coordination and support.
Overall, Stockton Ranch No. 1 plays a crucial role in water resource management in South Dakota, providing storage capacity and flood control along the TR-MEDICINE CREEK. As a privately owned structure, it is subject to state regulatory oversight and regular inspections, highlighting the importance of maintaining the dam's integrity and functionality. With its moderate risk level and ongoing monitoring, efforts are in place to ensure the safety and effectiveness of this essential water management infrastructure.
Year Completed |
1976 |
Dam Length |
495 |
Dam Height |
25 |
River Or Stream |
TR-MEDICINE CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Drainage Area |
1 |
Nid Storage |
28 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
25 |
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.
Stockton Ranch No. 1