Scs-Little Wewoka Creek Site-18 Reservoir Report
Last Updated: December 6, 2025
SCS-Little Wewoka Creek Site-18, located in Hughes County, Oklahoma, is a state-regulated earth dam designed by the USDA NRCS for flood risk reduction on the Greasy Creek.
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Summary
Completed in 1960, this dam stands at 30 feet high, with a length of 1675 feet and a storage capacity of 3325 acre-feet. With a controlled spillway and a low hazard potential, this structure plays a crucial role in mitigating flood risks in the region.
Managed by the OWRB and inspected every 5 years, SCS-Little Wewoka Creek Site-18 is in good condition and has a very high risk assessment ranking. The dam is equipped with a valve outlet gate and has not been modified since its completion. Although the last inspection dates back to 1980, the dam has not been rated for its condition. Despite its age, this dam continues to serve its primary purpose effectively and remains a key asset in the flood risk reduction efforts in the area.
Overall, SCS-Little Wewoka Creek Site-18 is a well-maintained state-owned structure with a vital role in water resource management and climate resilience in the region. With its strategic location and impressive design specifications, this dam stands as a testament to the importance of investing in infrastructure for the protection of communities and ecosystems from the impacts of extreme weather events.
Year Completed |
1960 |
Dam Length |
1675 |
Dam Height |
30 |
River Or Stream |
GREASY CREEK |
Primary Dam Type |
Earth |
Surface Area |
78 |
Hydraulic Height |
30 |
Nid Storage |
3325 |
Structural Height |
30 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
North Canadian River Near Wetumka
|
209cfs |
Canadian River At Calvin
|
361cfs |
Little River Near Sasakwa
|
12cfs |
Deep Fork Near Beggs
|
141cfs |
North Canadian River At Shawnee
|
177cfs |
Little River Near Tecumseh
|
8cfs |
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-Little Wewoka Creek Site-18