Scs-Wildhorse Creek Site-115 Reservoir Report
Last Updated: December 14, 2025
SCS-Wildhorse Creek Site-115, located in Garvin, Oklahoma, is a state-regulated earth dam designed by the USDA NRCS in 1969 for flood risk reduction along TR-Sandy Creek.
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Summary
Standing at a height of 23 feet and a length of 1680 feet, this dam has a storage capacity of 433 acre-feet and a maximum discharge of 1440 cubic feet per second. With a controlled spillway and a low hazard potential, this structure plays a crucial role in managing water resources in the region.
Despite being constructed over 50 years ago, SCS-Wildhorse Creek Site-115 has not been inspected since 1980, although it is scheduled for inspection every 5 years. The dam is equipped with a valve outlet gate and is maintained by the Natural Resources Conservation Service. While its condition assessment is currently not rated, the risk assessment categorizes the dam as having a very high risk level, emphasizing the importance of regular maintenance and monitoring to ensure its continued effectiveness in flood risk reduction.
With the potential to impact the surrounding area in the event of a failure, SCS-Wildhorse Creek Site-115 serves as a critical infrastructure for water resource management in Oklahoma. As water resource and climate enthusiasts, staying informed about the condition and maintenance of such structures is essential in safeguarding communities and ecosystems from the potential risks associated with dam failures.
Year Completed |
1969 |
Dam Length |
1680 |
Dam Height |
23 |
River Or Stream |
TR-SANDY CREEK |
Primary Dam Type |
Earth |
Surface Area |
20 |
Hydraulic Height |
23 |
Nid Storage |
433 |
Structural Height |
23 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
23 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Washita River Near Pauls Valley
|
317cfs |
Rock Creek At Sulphur
|
8cfs |
Walnut Creek At Purcell
|
29cfs |
Washita River Near Dickson
|
309cfs |
Canadian River At Purcell
|
197cfs |
North Criner Creek Near Criner
|
1cfs |
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-115