Scs-Big Wewoka Creek Site-09 Reservoir Report
Last Updated: December 8, 2025
The SCS-Big Wewoka Creek Site-09 in Oklahoma is a state-owned Earth dam constructed in 1964 by USDA NRCS to primarily reduce flood risks along the Carter Creek.
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Summary
The dam stands at a height of 40 feet and spans a length of 1100 feet, with a storage capacity of 1245 acre-feet and a normal storage of 332 acre-feet. Despite being categorized as having a low hazard potential, it is considered to have a very high risk due to its age and lack of recent condition assessments.
Located in Seminole County, Oklahoma, the SCS-Big Wewoka Creek Site-09 serves as a vital structure for flood risk reduction in the region. With controlled spillways and a single valve outlet gate, this dam plays a crucial role in managing water flow in Carter Creek. Although the last inspection dates back to 1980 and the condition is not rated, the state regulatory agency OWRB ensures that inspections, permitting, and enforcement are in place to maintain its functionality and safety.
For water resource and climate enthusiasts, the SCS-Big Wewoka Creek Site-09 presents an intriguing case study of a historic dam in need of modern assessment and risk management measures. With a notable association with the Natural Resources Conservation Service and the state of Oklahoma, this dam stands as a testament to the ongoing challenges and responsibilities of managing water resources in a changing climate.
Year Completed |
1964 |
Dam Length |
1100 |
Dam Height |
40 |
River Or Stream |
CARTER CREEK |
Primary Dam Type |
Earth |
Surface Area |
57 |
Hydraulic Height |
40 |
Nid Storage |
1245 |
Structural Height |
40 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
40 |
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-09