Scs-Big Wewoka Creek Site-16 Reservoir Report
Last Updated: December 8, 2025
SCS-Big Wewoka Creek Site-16 is a state-regulated earth dam located in Seminole, Oklahoma, designed by USDA NRCS in 1963 for flood risk reduction along the TR-WEWOKA CREEK.
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Summary
With a structural height of 34 feet and a length of 1500 feet, the dam has a storage capacity of 952 acre-feet and serves a critical function in the region's water resource management. The dam is equipped with a controlled spillway and a single valve outlet gate for water release.
Despite being classified as having a low hazard potential, the dam at SCS-Big Wewoka Creek Site-16 is considered to be in very high risk due to various factors. It has not been inspected since 1980, and its condition assessment is not rated, raising concerns about its structural integrity and ability to withstand potential emergencies. The dam's emergency action plan status, risk management measures, and inundation maps preparedness are also unaddressed, highlighting the need for updated safety protocols and maintenance to ensure the community's safety and water resource sustainability. As climate change continues to impact the region, the importance of maintaining and monitoring infrastructure like SCS-Big Wewoka Creek Site-16 becomes increasingly vital for long-term water resource and climate resilience.
Year Completed |
1963 |
Dam Length |
1500 |
Dam Height |
34 |
River Or Stream |
TR-WEWOKA CREEK |
Primary Dam Type |
Earth |
Surface Area |
37 |
Hydraulic Height |
34 |
Nid Storage |
952 |
Structural Height |
34 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
34 |
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-16