Scs-Big Wewoka Creek Site-19 Reservoir Report
Last Updated: December 8, 2025
SCS-Big Wewoka Creek Site-19, located in Wewoka, Oklahoma, is a State-owned dam designed by the USDA NRCS for the primary purpose of Flood Risk Reduction.
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Summary
This Earth dam, with a height of 31 feet and a length of 1280 feet, was completed in 1963 and has a storage capacity of 564 acre-feet. Despite its low hazard potential and not being currently rated for condition assessment, the dam is under the jurisdiction of the Oklahoma Water Resources Board (OWRB) and undergoes regular state inspection, permitting, and enforcement.
The dam on TR-WEWOKA CR is equipped with a controlled spillway and one valve outlet gate. With a maximum discharge capacity of 5340 cubic feet per second and a normal storage volume of 86 acre-feet, the dam serves as a crucial infrastructure for managing flood risks in the Seminole County area. While the last inspection date was in 1980, the dam's risk assessment is classified as "Very High (1)", highlighting the importance of continued monitoring and potential risk management measures to ensure the safety and effectiveness of this water resource.
Overall, SCS-Big Wewoka Creek Site-19 plays a vital role in mitigating flood risks in the region, serving as a key piece of infrastructure under the state's regulatory oversight. With its strategic location and significant storage capacity, this dam is a valuable asset for protecting communities and properties from potential water-related hazards. Water resource and climate enthusiasts will find interest in the unique features and operational aspects of this site, which contribute to the overall resilience and sustainability of the local water management system.
Year Completed |
1963 |
Dam Length |
1280 |
Dam Height |
31 |
River Or Stream |
TR-WEWOKA CR |
Primary Dam Type |
Earth |
Surface Area |
23 |
Hydraulic Height |
31 |
Nid Storage |
564 |
Structural Height |
31 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
31 |
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.
Scs-Big Wewoka Creek Site-19