Argyle Reservoir Report
Nearby: Niemi No.2 Antler
Last Updated: December 12, 2025
Argyle is a privately owned dam located on the TRIB-S FORK GRAND RIVER in Harding, South Dakota.
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Summary
Built in 1956, this earth dam stands at 26 feet in height and has a storage capacity of 34 acre-feet. With a maximum discharge of 525 cubic feet per second, Argyle serves as a crucial water resource in the region.
Managed by the Natural Resources Conservation Service, Argyle is regulated by the South Dakota Department of Environment and Natural Resources. While the dam is rated as having low hazard potential and is currently in a "Not Rated" condition assessment status, it is regularly inspected, permitted, and enforced to ensure its structural integrity and safety. With its primary purpose and associated structures unspecified, Argyle remains a vital infrastructure for water resource management in the area.
Situated within the jurisdiction of the state and federal agencies, Argyle plays a key role in water management and flood control efforts in South Dakota. Although its emergency action plan status, risk assessment, and management measures are not specified, the dam continues to serve the community while adhering to regulatory guidelines and inspection protocols. For water resource and climate enthusiasts, Argyle stands as a testament to the importance of sustainable infrastructure in safeguarding our natural resources.
Year Completed |
1956 |
Dam Length |
310 |
Dam Height |
26 |
River Or Stream |
TRIB-S FORK GRAND RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
26 |
Nid Storage |
34 |
Hazard Potential |
Low |
Nid Height |
26 |
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.
Argyle