Scs-Little Deep Fork Creek Site-49 Reservoir Report
Last Updated: December 6, 2025
SCS-Little Deep Fork Creek Site-49 is a state-owned earth dam located in Edna, Oklahoma, designed by the USDA NRCS in 1960 for flood risk reduction along the TR-Frank Henry Creek.
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Summary
With a dam height of 23 feet and a length of 700 feet, the structure has a maximum storage capacity of 236 acre-feet and a normal storage capacity of 33 acre-feet. The dam is equipped with a controlled spillway and a single valve outlet gate for water release.
Despite its low hazard potential, the site has been rated as having a very high risk due to its age and lack of recent inspection and assessment. The dam's condition is currently listed as not rated, and it has not undergone a condition assessment in recent years. While it meets state regulatory requirements and is regularly inspected, the risk management measures and emergency action plan for the dam are not up to date. The dam's risk level highlights the importance of continued monitoring and maintenance to ensure the safety and functionality of this vital flood control structure.
Year Completed |
1960 |
Dam Length |
700 |
Dam Height |
23 |
River Or Stream |
TR-FRANK HENRY CREEK |
Primary Dam Type |
Earth |
Surface Area |
8 |
Hydraulic Height |
23 |
Nid Storage |
236 |
Structural Height |
23 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
23 |
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-Little Deep Fork Creek Site-49