Scs-Upper Elk Creek Site-08 Reservoir Report
Last Updated: December 19, 2025
SCS-Upper Elk Creek Site-08 is a state-regulated earth dam located in Sentinel, Oklahoma.
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Summary
Built in 1967 by the USDA NRCS, this dam serves the primary purpose of flood risk reduction along the TR-SPRING CR river or stream. Standing at 28 feet tall with a hydraulic height of 24 feet, this structure has a maximum storage capacity of 258 acre-feet and covers a surface area of 17 acres.
Despite its low hazard potential, the dam has not been rated for its condition as it has not been inspected since January 1, 1980. With an associated valve outlet gate, the structure remains under the jurisdiction of the OWRB and is subject to state permitting, inspection, and enforcement. While the risk assessment indicates a very high risk level, no risk management measures or emergency action plans have been documented for this site. For water resource and climate enthusiasts, the SCS-Upper Elk Creek Site-08 presents an interesting case study in state-regulated dam management and the importance of regular inspections and maintenance to ensure public safety and environmental protection.
Year Completed |
1967 |
Dam Length |
2910 |
Dam Height |
28 |
River Or Stream |
TR-SPRING CR |
Primary Dam Type |
Earth |
Surface Area |
17 |
Hydraulic Height |
24 |
Nid Storage |
258 |
Structural Height |
28 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
28 |
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-08