Scs-Wildhorse Creek Site-030 Reservoir Report
Last Updated: December 8, 2025
SCS-Wildhorse Creek Site-030, also known as Wildhorse Creek 30, is a state-owned dam located in VELMA, Stephens County, Oklahoma.
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Summary
Managed by the USDA NRCS, this earth dam stands at a height of 38 feet and was completed in 1958 for the primary purpose of flood risk reduction on TR-OWENS CREEK. With a normal storage capacity of 286 acre-feet and a maximum storage of 1825 acre-feet, the dam covers a surface area of 39 acres and has a controlled spillway width of 2 feet.
Despite being rated as having a low hazard potential, this dam poses a very high risk due to its structural condition not being rated and its last inspection dating back to 1980. The dam's emergency action plan status, risk management measures, and inundation maps preparedness are currently unknown. With one valve serving as the outlet gates, this dam is under the jurisdiction of the Oklahoma Water Resources Board and is subject to state regulation, inspection, and enforcement to ensure its safety and compliance with flood risk reduction standards. For water resource and climate enthusiasts, SCS-Wildhorse Creek Site-030 presents an intriguing case study in dam management and the importance of periodic inspection and maintenance to mitigate potential risks.
Year Completed |
1958 |
Dam Length |
1150 |
Dam Height |
38 |
River Or Stream |
TR-OWENS CREEK |
Primary Dam Type |
Earth |
Surface Area |
39 |
Hydraulic Height |
38 |
Nid Storage |
1825 |
Structural Height |
38 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
38 |
Seasonal Comparison
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Nearby Streamflow Levels
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-030