Scs-Big Wewoka Creek Site-29 Reservoir Report
Last Updated: December 7, 2025
The SCS-Big Wewoka Creek Site-29 in Wetumka, Oklahoma, is a state-regulated earth dam designed by the USDA NRCS and completed in 1958.
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Summary
This dam serves the primary purpose of flood risk reduction along the tributary of Wewoka Creek, with a height of 41 feet and a storage capacity of 781 acre-feet. With a high hazard potential and fair condition assessment, this dam is inspected annually to ensure its structural integrity and safety.
Located in Seminole County, Oklahoma, this dam has a controlled spillway and a valve outlet gate. It has a maximum discharge capacity of 6,335 cubic feet per second, serving a drainage area of 1.6 square miles. The dam's surface area covers 19.06 acres, providing critical flood protection for the surrounding area. With a risk assessment indicating a very high risk level, measures are in place to manage and mitigate potential risks associated with this essential water resource infrastructure.
Managed by the Oklahoma Water Resources Board (OWRB), the SCS-Big Wewoka Creek Site-29 plays a crucial role in reducing flood risks and protecting the community from potential disasters. As a key component of the state's water resource infrastructure, this dam exemplifies the importance of proactive maintenance and monitoring to ensure its continued effectiveness in safeguarding the area against flooding events.
Year Completed |
1958 |
Dam Length |
1000 |
Dam Height |
41 |
River Or Stream |
TRIBUTARY OF WEWOKA CREEK |
Primary Dam Type |
Earth |
Surface Area |
19.06 |
Hydraulic Height |
40 |
Drainage Area |
1.6 |
Nid Storage |
781 |
Structural Height |
40 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
41 |
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-29