Odou Patterson Reservoir Report
Nearby: George Clark Nolan Sexton
Last Updated: December 7, 2025
Odou Patterson is a private dam located in Perkins, South Dakota, along the TR MOREAU RIVER.
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Summary
Constructed in 1952 by the Natural Resources Conservation Service, this earth dam stands at a height of 39 feet and has a length of 320 feet. With a storage capacity of 109 acre-feet, Odou Patterson serves as a vital water resource in the region.
Despite being categorized as having a low hazard potential, the condition of Odou Patterson is currently not rated. The dam is state-regulated by the South Dakota Department of Environment and Natural Resources (DENR), with state jurisdiction, permitting, inspection, and enforcement all in place. The dam's primary purpose and associated structures are not specified, but it plays a crucial role in water management and flood control along the TR MOREAU RIVER.
Represented by Dusty Johnson (R) in the US Congress, Odou Patterson is a key feature in the St. Paul District of the US Army Corps of Engineers. Although details such as inspection frequency, emergency action plan status, and risk assessment are not available, Odou Patterson remains an integral component of the local water infrastructure, showcasing the importance of effective dam management in ensuring water security and climate resilience in South Dakota.
Year Completed |
1952 |
Dam Length |
320 |
Dam Height |
39 |
River Or Stream |
TR MOREAU RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
39 |
Nid Storage |
109 |
Hazard Potential |
Low |
Nid Height |
39 |
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.
Odou Patterson