Scs-Big Wewoka Creek Site-31 Reservoir Report
Last Updated: December 7, 2025
SCS-Big Wewoka Creek Site-31 is a state-regulated earth dam located in Seminole, Oklahoma, designed by the USDA NRCS with a primary purpose of flood risk reduction.
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Summary
Built in 1959, this dam stands at a height of 30 feet and spans a length of 1590 feet, providing a storage capacity of 690 acre-feet. Situated on the TR-Wewoka Creek, this dam plays a crucial role in managing floodwaters and protecting the surrounding areas from potential hazards.
With a high hazard potential and a fair condition assessment, SCS-Big Wewoka Creek Site-31 is subject to regular state inspections, ensuring its structural integrity and operational effectiveness. The dam features a controlled spillway and a single valve outlet gate, highlighting the engineering considerations put into its design. Despite being non-federally owned, this dam is an essential component of Oklahoma's water resource infrastructure, contributing to the overall flood risk management efforts in the region.
As water resource and climate enthusiasts explore the intricacies of SCS-Big Wewoka Creek Site-31, they can appreciate the blend of natural and engineered elements that come together to mitigate flood risks and safeguard communities. The dam's very high risk assessment underscores its critical importance in the region's water management strategies, making it a focal point for ongoing monitoring and risk management measures. With its historical significance and functional design, this dam serves as a testament to the collaborative efforts of state agencies and design professionals in safeguarding water resources and enhancing climate resilience in Oklahoma.
Year Completed |
1959 |
Dam Length |
1590 |
Dam Height |
30 |
River Or Stream |
TR-WEWOKA CREEK |
Primary Dam Type |
Earth |
Surface Area |
25 |
Hydraulic Height |
30 |
Nid Storage |
690 |
Structural Height |
30 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
North Canadian River Near Wetumka
|
205cfs |
Little River Near Sasakwa
|
15cfs |
Canadian River At Calvin
|
361cfs |
North Canadian River At Shawnee
|
193cfs |
Little River Near Tecumseh
|
10cfs |
Deep Fork Near Beggs
|
135cfs |
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-31