George Jesfjeld Reservoir Report
Nearby: Mollman Dam Harold Hedstron
Last Updated: December 6, 2025
George Jesfjeld is a privately owned dam located in Perkins, South Dakota, along the TR-South Grand River.
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Summary
Built in 1951 by the Natural Resources Conservation Service, this earth dam stands at a height of 18 feet and has a storage capacity of 86 acre-feet, with a maximum discharge capability of 250 cubic feet per second. Despite being classified as having a low hazard potential, the dam's condition has not been rated, and it lacks updated emergency action plans and risk assessment measures.
While George Jesfjeld serves as a vital water resource for the region, its regulatory oversight falls under the South Dakota Department of Environment and Natural Resources. As a state-regulated structure, the dam undergoes regular inspections, permitting, and enforcement actions to ensure public safety and environmental compliance. Dusty Johnson, the Representative for South Dakota, oversees the congressional district where the dam is located, emphasizing the importance of water infrastructure in the region.
As a key component of the local water management system, George Jesfjeld plays a crucial role in flood control and water supply for the surrounding area. With its historical significance dating back to over 70 years, the dam stands as a testament to the ongoing efforts to manage water resources and address climate-related challenges. As water enthusiasts and climate advocates continue to monitor and support such structures, George Jesfjeld serves as a reminder of the intersection between human infrastructure and environmental sustainability.
Year Completed |
1951 |
Dam Length |
340 |
Dam Height |
18 |
River Or Stream |
TR-SOUTH GRAND RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
18 |
Nid Storage |
86 |
Hazard Potential |
Low |
Nid Height |
18 |
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.
George Jesfjeld