Scs-Winter Creek Site-17 Reservoir Report
Last Updated: December 9, 2025
SCS-Winter Creek Site-17 is a state-owned dam located in Grady, Oklahoma, designed by the USDA NRCS with a primary purpose of flood risk reduction.
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Summary
Completed in 1966, this earth dam stands at a height of 30 feet and has a hydraulic height of 28 feet. With a NID storage capacity of 312 acre-feet and a spillway width of 1 foot, the dam serves to regulate the flow of TR-LAFLIN CR to mitigate flood risks in the area.
Despite being classified as a low hazard potential structure, SCS-Winter Creek Site-17 is rated as having a very high risk due to its condition assessment not being rated. The dam has not been inspected since January 1, 1980, but the state agency OWRB is responsible for regulating, inspecting, and enforcing compliance with state permitting requirements. With a normal storage capacity of 35 acre-feet and a maximum discharge of 725 cubic feet per second, this dam plays a crucial role in managing water resources in the region.
Ensuring the safety and efficacy of SCS-Winter Creek Site-17 is vital for protecting local communities from potential flood events. With a controlled spillway and one valve outlet gate, this earth dam continues to serve its purpose in flood risk reduction. Climate and water resource enthusiasts will find this site to be an intriguing case study in dam management and the intersection of environmental conservation and public safety.
Year Completed |
1966 |
Dam Length |
1105 |
Dam Height |
30 |
River Or Stream |
TR-LAFLIN CR |
Primary Dam Type |
Earth |
Surface Area |
8 |
Hydraulic Height |
28 |
Nid Storage |
312 |
Structural Height |
30 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
30 |
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-17