Richardson Number 1 Reservoir Report
Nearby: Krogman No.4 Olson No. 1
Last Updated: December 8, 2025
Richardson Number 1 is a privately owned dam located in Jones, South Dakota, on the TR-White River.
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Summary
Constructed in 1953 by the Natural Resources Conservation Service, this earth dam stands at a height of 27 feet and spans a length of 432 feet, with a storage capacity of 32 acre-feet. The dam is regulated by the South Dakota Department of Environment and Natural Resources, with state permitting, inspection, and enforcement in place to ensure its safety and compliance with regulations. Despite being rated as having a low hazard potential and not yet assessed for its condition, Richardson Number 1 plays a crucial role in water resource management in the area.
While the dam has not been modified in recent years and lacks certain emergency preparedness measures like an Emergency Action Plan (EAP), it is notable for its low risk profile and steady operation. With a maximum discharge capacity of 562 cubic feet per second and a normal storage capacity of 23 acre-feet, Richardson Number 1 contributes to flood control and water supply management in the region. The dam's location in a relatively remote area adds to its importance in regulating water flow and ensuring downstream communities are protected from potential flooding events.
As an essential part of the water infrastructure in South Dakota, Richardson Number 1 stands as a testament to the collaboration between private owners and state regulatory agencies in safeguarding water resources and mitigating risks associated with dam operations. While further assessments and emergency preparedness measures may be needed to enhance its safety and resilience, the dam's role in maintaining water quality, regulating flow, and supporting agricultural activities underscores its significance in the local ecosystem. For water resource and climate enthusiasts, Richardson Number 1 offers a glimpse into the intricate balance between human development and environmental conservation in managing our precious water resources.
Year Completed |
1953 |
Dam Length |
432 |
Dam Height |
27 |
River Or Stream |
TR-WHITE RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
27 |
Nid Storage |
32 |
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.
Richardson Number 1