Peters Number 1 Reservoir Report
Last Updated: December 6, 2025
Peters Number 1 is a privately owned dam located in Jones, South Dakota, along the TR-Bad River.
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Summary
Built in 1956, this earth dam stands at a height of 28 feet and spans 597 feet in length, with a storage capacity of 74 acre-feet. Despite being regulated by the state of South Dakota, the dam is currently listed as "Not Rated" in terms of its condition assessment, with a low hazard potential.
Managed by the Natural Resources Conservation Service, Peters Number 1 has not undergone recent inspections or assessments related to emergency action plans or risk management measures. While the dam has a maximum discharge of 756 cubic feet per second, there is limited information available on its spillway type, outlet gates, or associated structures. With no designated emergency contacts or updated inundation maps, the dam's current risk assessment and management status remain unclear.
For water resource and climate enthusiasts, Peters Number 1 serves as an intriguing case study in the regulatory oversight and maintenance of private dams. As concerns around dam safety and emergency preparedness continue to grow, further evaluation and updates may be necessary to ensure the long-term stability and resilience of this essential water infrastructure in South Dakota.
Year Completed |
1956 |
Dam Length |
597 |
Dam Height |
28 |
River Or Stream |
TR-BAD RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
28 |
Nid Storage |
74 |
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.
Peters Number 1