Mink Dam Reservoir Report
Nearby: North Dam Lermeny Dam
Last Updated: December 6, 2025
Mink Dam, located in Harding, South Dakota, is a privately owned structure that serves various regulatory purposes.
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Summary
Managed by the South Dakota Department of Environment and Natural Resources, this earth dam on the TR-Grand River stands at a height of 21 feet and has a storage capacity of 50 acre-feet. Completed in 1960, Mink Dam serves as a vital water resource infrastructure in the region, with a maximum discharge capacity of 250 cubic feet per second.
Despite being classified as having a low hazard potential and not yet rated for its condition, Mink Dam plays a crucial role in regulating water flow and storage in the area. Operated by the Natural Resources Conservation Service, this dam not only helps in flood control but also supports various agricultural and ecological activities in the region. With a history dating back to over six decades, Mink Dam continues to be an essential component of the water management system in Harding, South Dakota.
As a key structure in the Omaha District, Mink Dam plays a significant role in ensuring water security and climate resilience in the region. With its strategic location and operational efficiency, this dam stands as a testament to the importance of sustainable water resource management in the face of changing climate patterns. As water resource and climate enthusiasts, understanding the significance of Mink Dam sheds light on the interconnectedness of human infrastructure and environmental stewardship in safeguarding our natural resources for future generations.
Year Completed |
1960 |
Dam Length |
280 |
Dam Height |
21 |
River Or Stream |
TR-GRAND RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
21 |
Nid Storage |
50 |
Hazard Potential |
Low |
Nid Height |
21 |
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.
Mink Dam