Scs-Wildhorse Creek Site-066 Reservoir Report
Last Updated: December 8, 2025
SCS-Wildhorse Creek Site-066, located in Garvin County, Oklahoma, is a state-regulated earth dam designed by USDA NRCS in 1963 for flood risk reduction along TR-Sandy Bear Creek.
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Summary
The dam, standing at a height of 21 feet and spanning 1290 feet in length, provides a maximum storage capacity of 280 acre-feet with a normal storage level of 31 acre-feet. The dam's spillway type is controlled with a width of 1 foot, allowing for a maximum discharge of 860 cubic feet per second.
Despite being classified as having a low hazard potential, the site is considered to have a very high risk level, with a condition assessment of 'Not Rated' as of the last inspection in 1980. The dam's emergency action plan status, risk assessment, and risk management measures are all currently unspecified, indicating potential areas for improvement in safety protocol and response readiness. With its location in a region prone to extreme weather events and the potential for increased flood risks due to climate change, ongoing monitoring and maintenance of SCS-Wildhorse Creek Site-066 are crucial for ensuring the safety of surrounding communities and water resources.
Year Completed |
1963 |
Dam Length |
1290 |
Dam Height |
21 |
River Or Stream |
TR-SANDY BEAR CREEK |
Primary Dam Type |
Earth |
Surface Area |
11 |
Hydraulic Height |
21 |
Nid Storage |
280 |
Structural Height |
21 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
21 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Washita River Near Pauls Valley
|
335cfs |
Rock Creek At Sulphur
|
8cfs |
North Criner Creek Near Criner
|
1cfs |
Washita River At Alex
|
241cfs |
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-Wildhorse Creek Site-066