Scs-Upper Elk Creek Site-13 Reservoir Report
Last Updated: December 19, 2025
Located in Sentinel, Oklahoma, the SCS-Upper Elk Creek Site-13 is a state-regulated dam designed by the USDA NRCS in 1967 with a primary purpose of flood risk reduction.
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Summary
This earth dam stands at a height of 25 feet and has a hydraulic height of 21 feet, providing a maximum storage capacity of 467 acre-feet. With a controlled spillway and a low hazard potential, this structure plays a crucial role in managing water resources in the region.
The dam overlooks the TR-Trail Creek and is under the jurisdiction of the OWRB in the Tulsa District. Despite its age, the SCS-Upper Elk Creek Site-13 has not been inspected since January 1980, with a scheduled inspection frequency of every 5 years. The risk assessment for this dam indicates a very high risk level (1), emphasizing the importance of regular maintenance and monitoring to ensure its continued safety and effectiveness in mitigating flood risks in the area.
As a key component in the flood risk reduction strategy for Washita County, Oklahoma, the SCS-Upper Elk Creek Site-13 serves as a critical infrastructure for water resource management in the region. With a history of federal funding and design by the Natural Resources Conservation Service, this dam plays a vital role in protecting the local community from potential flooding events. However, with an outdated inspection record and a high-risk assessment, it is imperative for state regulatory agencies and stakeholders to prioritize the maintenance and monitoring of this dam to uphold its functionality and ensure the safety of surrounding areas.
Year Completed |
1967 |
Dam Length |
820 |
Dam Height |
25 |
River Or Stream |
TR-TRAIL CREEK |
Primary Dam Type |
Earth |
Surface Area |
21 |
Hydraulic Height |
21 |
Nid Storage |
467 |
Structural Height |
25 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
25 |
Seasonal Comparison
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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-13