Scs-Rock Creek Site-09 Reservoir Report
Nearby: Lacy Scs-Rock Creek Site-16
Last Updated: December 16, 2025
SCS-Rock Creek Site-09, located in Sulphur, Oklahoma, is a state-regulated earth dam designed by the USDA NRCS in 1961 for flood risk reduction on TR-Rock Creek.
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Summary
With a structural height of 32 feet and a hydraulic height of 28 feet, the dam spans 650 feet and has a storage capacity of 321 acre-feet. The dam features a controlled spillway and a single valve outlet gate for water release.
The dam's hazard potential is classified as significant, with a condition assessment rating of fair. Despite being assessed in 2011, the dam is inspected every three years to ensure its structural integrity. The risk assessment for SCS-Rock Creek Site-09 indicates a very high risk level, emphasizing the importance of continued monitoring and maintenance to mitigate potential dangers and protect downstream communities from flooding events.
This site serves as a critical infrastructure for managing water resources in the area and highlights the collaborative efforts between federal and state agencies in ensuring the safety and functionality of dams for flood control purposes. Water resource and climate enthusiasts will find interest in the technical details and risk management measures associated with this dam, which plays a crucial role in safeguarding the local environment and communities from the impacts of extreme weather events.
Year Completed |
1961 |
Dam Length |
650 |
Dam Height |
32 |
River Or Stream |
TR-ROCK CREEK |
Primary Dam Type |
Earth |
Surface Area |
7 |
Hydraulic Height |
28 |
Nid Storage |
321 |
Structural Height |
32 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
32 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Rock Creek At Sulphur
|
8cfs |
Pennington Creek Near Reagan
|
47cfs |
Washita River Near Dickson
|
317cfs |
Washita River Near Pauls Valley
|
324cfs |
Blue River Near Connerville
|
47cfs |
Walnut Creek At Purcell
|
29cfs |
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-09