Scs-Sandy Creek Site-15 Reservoir Report
Last Updated: December 8, 2025
SCS-Sandy Creek Site-15, located in Garvin County, Oklahoma, is a state-owned dam designed by the USDA NRCS with a primary purpose of flood risk reduction.
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Summary
Completed in 1980, this earth dam stands at a height of 36 feet and has a storage capacity of 1549 acre-feet. The dam spans a length of 2110 feet and has a controlled spillway with a width of 1 foot. It is situated on the TR-Little Canadian Sandy Creek and is regulated by the Oklahoma Water Resources Board.
Despite being rated as having a low hazard potential, SCS-Sandy Creek Site-15 is categorized as having a very high risk assessment level. It has not been given a condition assessment rating and the last inspection date recorded was in 1980. The dam features one valve outlet gate and is inspected every 5 years by the state regulatory agency. The area surrounding the dam is at risk of high inundation, making it crucial to have emergency action plans in place to mitigate potential risks.
For water resource and climate enthusiasts, SCS-Sandy Creek Site-15 presents an intriguing case study in dam infrastructure management and risk assessment. With its unique design features and high-risk profile, this dam serves as a focal point for understanding the complexities of flood risk reduction and emergency preparedness in the face of changing climate conditions. As efforts continue to monitor and maintain the dam, it serves as a reminder of the critical role that infrastructure plays in safeguarding communities and natural resources against the impacts of extreme weather events.
Year Completed |
1980 |
Dam Length |
2110 |
Dam Height |
36 |
River Or Stream |
TR-LITTLE CANADIAN SANDY CR |
Primary Dam Type |
Earth |
Surface Area |
43 |
Hydraulic Height |
31 |
Nid Storage |
1549 |
Structural Height |
36 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
36 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Rock Creek At Sulphur
|
8cfs |
Washita River Near Pauls Valley
|
335cfs |
Pennington Creek Near Reagan
|
7cfs |
Blue River Near Connerville
|
49cfs |
Little River Near Sasakwa
|
15cfs |
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-Sandy Creek Site-15