Scs-Winter Creek Site-01 Reservoir Report
Last Updated: December 7, 2025
SCS-Winter Creek Site-01, located in Grady County, Oklahoma, is a state-regulated earth dam constructed in 1965 by the USDA NRCS to primarily reduce flood risks along Winter Creek.
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Summary
With a height of 36 feet and a hydraulic height of 31 feet, this dam has a storage capacity of 1,095 acre-feet and a normal storage capacity of 229 acre-feet. The dam spans 1,420 feet in length and has a controlled spillway width of 2 feet, with a maximum discharge of 4,171 cubic feet per second.
Despite being classified as having a significant hazard potential, SCS-Winter Creek Site-01 is currently in fair condition as of the last inspection in October 2011. The dam is inspected every 3 years, and emergency action plans are in place to mitigate risks associated with its operation. With a very high risk assessment rating, this dam plays a critical role in managing water resources and protecting communities downstream from potential flooding events. Water resource and climate enthusiasts will find SCS-Winter Creek Site-01 to be a noteworthy structure that contributes to the overall flood risk reduction efforts in the region.
Year Completed |
1965 |
Dam Length |
1420 |
Dam Height |
36 |
River Or Stream |
WINTER CREEK |
Primary Dam Type |
Earth |
Surface Area |
34 |
Hydraulic Height |
31 |
Nid Storage |
1095 |
Structural Height |
36 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
36 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Washita River At Alex
|
243cfs |
North Criner Creek Near Criner
|
1cfs |
Little Washita River East Of Ninnekah
|
19cfs |
Canadian River At Norman
|
211cfs |
Walnut Creek At Purcell
|
31cfs |
Canadian River At Purcell
|
212cfs |
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-01