Scs-Big Wewoka Creek Site-11 Reservoir Report
Last Updated: December 8, 2025
SCS-Big Wewoka Creek Site-11, located in Seminole, Oklahoma, is a state-regulated earth dam designed by the USDA NRCS in 1963 for flood risk reduction along the TR-Wewoka Creek.
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Summary
With a height of 25 feet and a length of 2180 feet, this dam has a storage capacity of 2964 acre-feet and a normal storage of 467 acre-feet. The dam is equipped with a controlled spillway and a single valve outlet gate.
Despite being classified as low hazard potential, the risk assessment for SCS-Big Wewoka Creek Site-11 indicates a very high risk level, emphasizing the importance of regular inspections and maintenance. The condition of the dam is currently not rated, with the last inspection date recorded as January 1, 1980. The emergency action plan (EAP) status, inundation maps, and risk management measures for this site are currently not available, highlighting the need for updated preparedness and risk mitigation strategies.
With its strategic location in a watershed prone to flooding, SCS-Big Wewoka Creek Site-11 serves as a vital infrastructure for flood risk reduction in the region. As water resource and climate enthusiasts, it is essential to monitor and assess the condition of this dam to ensure its continued effectiveness in protecting the surrounding community and environment from potential flooding events.
Year Completed |
1963 |
Dam Length |
2180 |
Dam Height |
25 |
River Or Stream |
TR-WEWOKA CREEK |
Primary Dam Type |
Earth |
Surface Area |
128 |
Hydraulic Height |
25 |
Nid Storage |
2964 |
Structural Height |
25 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
25 |
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-11