Wedean Number 2 Reservoir Report
Nearby: Wedean Number 3 Brunskill Number 1
Last Updated: December 8, 2025
Wedean Number 2 is a private earth dam located in Jones, South Dakota, along the TR-White River.
°F
°F
mph
Wind
%
Humidity
Summary
Constructed in 1954 by the Natural Resources Conservation Service, this dam stands at 27 feet high and has a storage capacity of 43 acre-feet. With a low hazard potential, the dam has not been rated for its condition assessment, but is regulated by the South Dakota Department of Environment and Natural Resources. Despite its age, Wedean Number 2 continues to serve its primary purpose of water storage and flood control, safeguarding the surrounding area from potential risks.
Situated in a rural area with no associated structures, Wedean Number 2 plays a crucial role in managing water resources in South Dakota. The dam has a maximum discharge capacity of 1827 cubic feet per second, ensuring effective water flow control during periods of high flow. While the dam's emergency action plan status and risk assessment remain unspecified, its presence is vital for maintaining water supply reliability and protecting downstream areas from flooding. With regular inspections and enforcement by state authorities, Wedean Number 2 exemplifies responsible water management practices in the region.
Overall, Wedean Number 2 stands as a testament to the importance of private water infrastructure in mitigating the impacts of climate change and ensuring water security in South Dakota. As a key component of the state's water resource management framework, this dam plays a critical role in regulating water flow, reducing flood risks, and supporting agricultural activities in the region. With ongoing monitoring and maintenance, Wedean Number 2 continues to contribute to the resilience of local communities and ecosystems, highlighting the interconnectedness of water resources and climate adaptation efforts in the face of environmental challenges.
Year Completed |
1954 |
Dam Length |
384 |
Dam Height |
27 |
River Or Stream |
TR-WHITE RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
27 |
Nid Storage |
43 |
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.
Wedean Number 2