Sd Noname 131 Reservoir Report
Nearby: Floyd Cooper Sd Noname 106
Last Updated: December 6, 2025
Sd Noname 131 is a private dam located in Harding, South Dakota, along the TR-SOUTH FORK GRAND RIVER.
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Summary
Built in 1956 by the Natural Resources Conservation Service, this earth dam stands at 19 feet high and spans 385 feet in length. With a storage capacity of 60 acre-feet, it serves primarily for irrigation purposes in the region. Despite being in a low hazard potential category, the dam is state regulated and subject to regular inspections, enforcement, and permitting by the South Dakota Department of Environment and Natural Resources.
Owned and managed by a private entity, Sd Noname 131 is an essential infrastructure for water resource management in the area. With a maximum discharge capacity of 1050 cubic feet per second, the dam plays a crucial role in flood control and water supply for agricultural activities. While the dam's condition is currently not rated, its emergency action plan and risk management measures are not explicitly documented. However, its compliance with state regulations and inspection requirements ensure the safety and reliability of this vital water resource structure.
Situated within the jurisdiction of the Omaha District of the US Army Corps of Engineers, Sd Noname 131 benefits from federal oversight and funding. With Dusty Johnson serving as the congressional representative for the area, the dam's maintenance and operation are supported by federal agencies. Although the dam's associated structures and emergency preparedness details are not specified in the data, its strategic location and functionality underscore its significance in water resource management and climate resilience efforts in South Dakota.
Year Completed |
1956 |
Dam Length |
385 |
Dam Height |
19 |
River Or Stream |
TR-SOUTH FORK GRAND RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
19 |
Nid Storage |
60 |
Hazard Potential |
Low |
Nid Height |
19 |
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.
Sd Noname 131