Scs-Rock Creek Site-15 Reservoir Report
Last Updated: December 17, 2025
SCS-Rock Creek Site-15, located in Sulphur, Oklahoma, is a state-regulated Earth dam designed by the USDA NRCS for flood risk reduction along Cochran Creek.
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Summary
Completed in 1962, this dam stands at a height of 50 feet with a hydraulic height of 46 feet. It has a storage capacity of 1428 acre-feet and a normal storage of 153 acre-feet, covering a surface area of 24 acres.
With a hazard potential rated as high and a condition assessment of fair, SCS-Rock Creek Site-15 poses a risk of inundation in the surrounding area. Despite its age, the dam is regularly inspected and maintained, with the last inspection conducted in October 2011. Emergency action plans are in place, ensuring preparedness in case of any unforeseen events. The site's risk assessment is classified as very high, emphasizing the importance of ongoing risk management measures.
Overall, SCS-Rock Creek Site-15 serves as a vital structure for flood risk reduction in Murray County, Oklahoma. Managed by the state regulatory agency OWRB, this dam underscores the critical role of water resource infrastructure in safeguarding communities against potential water-related disasters. Its strategic location and design highlight the ongoing efforts to protect the local area from the impacts of climate change and extreme weather events.
Year Completed |
1962 |
Dam Length |
1860 |
Dam Height |
50 |
River Or Stream |
COCHRAN CREEK |
Primary Dam Type |
Earth |
Surface Area |
24 |
Hydraulic Height |
46 |
Nid Storage |
1428 |
Structural Height |
50 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
50 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Rock Creek At Sulphur
|
8cfs |
Pennington Creek Near Reagan
|
47cfs |
Blue River Near Connerville
|
47cfs |
Washita River Near Pauls Valley
|
327cfs |
Washita River Near Dickson
|
314cfs |
Little River Near Sasakwa
|
9cfs |
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.
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Scs-Rock Creek Site-15