Scs-Upper Elk Creek Site-11 Reservoir Report
Last Updated: December 19, 2025
SCS-Upper Elk Creek Site-11, located in Sentinel, Oklahoma, is a state-owned earth dam designed by USDA NRCS with the primary purpose of flood risk reduction along Trail Creek.
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Summary
Completed in 1972, this dam stands at a height of 48 feet with a hydraulic height of 42 feet and a length of 2140 feet. It has a normal storage capacity of 964 acre-feet and a maximum storage of 4442 acre-feet, serving as a crucial structure for mitigating flood risks in the area.
With a controlled spillway and a low hazard potential, SCS-Upper Elk Creek Site-11 is regulated by the Oklahoma Water Resources Board and undergoes regular state inspections, enforcement, and permitting. Despite being in operation for several decades, the dam's condition remains unrated, showcasing the need for ongoing risk assessment and management measures to ensure its continued effectiveness in flood risk reduction. The dam's location in Washita County, Oklahoma, demonstrates its vital role in safeguarding the surrounding community and environment from potential inundation events.
Overall, SCS-Upper Elk Creek Site-11 serves as a significant flood control infrastructure in the region, highlighting the importance of state-regulated dam maintenance and risk assessment to ensure public safety and environmental protection. As water resource and climate enthusiasts, understanding the design, purpose, and operation of such dams is crucial for fostering resilience and sustainability in managing water resources and mitigating the impacts of extreme weather events in the area.
Year Completed |
1972 |
Dam Length |
2140 |
Dam Height |
48 |
River Or Stream |
TRAIL CREEK |
Primary Dam Type |
Earth |
Surface Area |
134 |
Hydraulic Height |
42 |
Nid Storage |
4442 |
Structural Height |
48 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
48 |
Seasonal Comparison
Weather Forecast
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-Upper Elk Creek Site-11