Scs-Tri-County Turkey Creek Site-28d Reservoir Report
Last Updated: December 21, 2025
SCS-Tri-County Turkey Creek Site-28d is a state-regulated earth dam located in Olustee, Oklahoma, designed by USDA NRCS in 1966 for flood risk reduction on TR-Horse Branch.
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Summary
The dam stands at a height of 24 feet with a hydraulic height of 21 feet and a length of 2,190 feet, providing a storage capacity of 175 acre-feet and a surface area of 12 acres. With a controlled spillway and one valve outlet gate, the dam has a low hazard potential and is rated as not assessed for its condition.
Despite its age, SCS-Tri-County Turkey Creek Site-28d remains a critical infrastructure for flood risk reduction in Greer County, Oklahoma. The dam's design and construction by the Natural Resources Conservation Service have ensured its functionality and effectiveness over the years. However, with a very high risk assessment due to its age and lack of recent inspections, there is a need for updated emergency action plans and risk management measures to ensure the safety and integrity of the dam in the face of potential climate challenges.
For water resource and climate enthusiasts, the SCS-Tri-County Turkey Creek Site-28d serves as a reminder of the importance of maintaining and assessing aging infrastructure in the face of increasing climate variability and extreme weather events. With its history of successful flood risk reduction and ongoing state regulation by OWRB, this earth dam remains a vital asset for the community, highlighting the intersection of water resource management and climate resilience in the region.
Year Completed |
1966 |
Dam Length |
2190 |
Dam Height |
24 |
River Or Stream |
TR-HORSE BRANCH |
Primary Dam Type |
Earth |
Surface Area |
12 |
Hydraulic Height |
21 |
Nid Storage |
175 |
Structural Height |
24 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
24 |
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-Tri-County Turkey Creek Site-28d