Scs-Winter Creek Site-18 Reservoir Report
Last Updated: December 9, 2025
SCS-Winter Creek Site-18 is a state-regulated dam located in Grady County, Oklahoma, specifically in the city of Bradley.
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Summary
Built in 1966 by the USDA NRCS, this earth dam stands at a height of 39 feet and serves the primary purpose of flood risk reduction along Laflin Creek. With a normal storage capacity of 145 acre-feet and a maximum storage of 1145 acre-feet, this dam plays a crucial role in managing water resources in the area.
The dam features a controlled spillway with a width of 1 foot and an outlet gate consisting of one valve. Despite being assessed as low hazard potential and not rated in terms of condition, the risk assessment for SCS-Winter Creek Site-18 indicates a very high risk level. The dam has not been modified since its completion and has only undergone inspections every 5 years, with the last inspection dating back to 1980. With the state regulatory agency OWRB overseeing permitting, inspection, and enforcement, this dam remains a key infrastructure for mitigating flood risks in the region.
Overall, SCS-Winter Creek Site-18 stands as a critical structure for flood risk reduction in Grady County, Oklahoma. Managed by the state and constructed by USDA NRCS, this dam plays a vital role in protecting the surrounding areas from potential flooding events along Laflin Creek. Despite its age and limited recent inspections, the dam's low hazard potential and controlled spillway design highlight its importance in water resource management and climate resilience efforts in the region.
Year Completed |
1966 |
Dam Length |
1430 |
Dam Height |
39 |
River Or Stream |
LAFLIN CREEK |
Primary Dam Type |
Earth |
Surface Area |
26 |
Hydraulic Height |
35 |
Nid Storage |
1145 |
Structural Height |
39 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
39 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
North Criner Creek Near Criner
|
1cfs |
Washita River At Alex
|
241cfs |
Little Washita River East Of Ninnekah
|
18cfs |
Canadian River At Norman
|
211cfs |
Walnut Creek At Purcell
|
29cfs |
Canadian River At Purcell
|
208cfs |
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-Winter Creek Site-18