George Clark Reservoir Report
Nearby: Odou Patterson Nolan Sexton
Last Updated: December 7, 2025
George Clark is a privately owned dam located in Perkins, South Dakota, along the TR Moreau River.
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Summary
Constructed in 1951, this earth dam stands at 18 feet tall and spans 350 feet in length, with a storage capacity of 86 acre-feet. Managed by the Natural Resources Conservation Service, George Clark is regulated by the South Dakota Department of Environment and Natural Resources, ensuring that state permitting, inspection, and enforcement standards are met.
Although categorized as having a low hazard potential, George Clark's condition assessment is currently listed as "Not Rated," indicating a need for further evaluation. The dam has not been inspected in recent years, but it meets state jurisdiction and regulatory requirements. Despite its age, George Clark remains a vital component of the local water resource infrastructure, providing flood control and water storage for the surrounding area.
As a water resource and climate enthusiast, George Clark offers an intriguing case study in the management and maintenance of privately owned dams. With its historical significance and impact on the local ecosystem, this earth dam serves as a reminder of the importance of responsible stewardship of water resources in the face of changing environmental conditions.
Year Completed |
1951 |
Dam Length |
350 |
Dam Height |
18 |
River Or Stream |
TR MOREAU 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 Clark