Scs-Tri-County Turkey Creek Site-02a Reservoir Report
Last Updated: December 20, 2025
SCS-Tri-County Turkey Creek Site-02a is a state-regulated dam located in Duke, Oklahoma, within Harmon County.
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Summary
Built in 1980 by the USDA NRCS, this earth dam stands at a height of 27 feet and serves primarily for flood risk reduction along the TR-Turkey Creek. With a storage capacity of 1,346 acre-feet, the dam has a controlled spillway and a low hazard potential rating.
Although the dam's condition assessment is currently not rated, it has been inspected periodically since its last assessment in 1988. The risk assessment for SCS-Tri-County Turkey Creek Site-02a indicates a very high risk level (1), emphasizing the importance of effective risk management measures. While the dam is not under the jurisdiction of the US Army Corps of Engineers, it remains subject to state permitting, inspection, and enforcement by the Oklahoma Water Resources Board.
Water resource and climate enthusiasts will find SCS-Tri-County Turkey Creek Site-02a to be a noteworthy structure in the region, contributing to flood risk reduction efforts along the Turkey Creek. Its design by the USDA NRCS and state regulatory oversight ensure its continued functionality and safety for the surrounding community. As the dam's risk assessment highlights the need for proactive management, monitoring the site's condition and implementing appropriate measures will be crucial in safeguarding the area from potential hazards.
Year Completed |
1980 |
Dam Length |
1175 |
Dam Height |
27 |
River Or Stream |
TR-TURKEY CREEK |
Primary Dam Type |
Earth |
Surface Area |
20 |
Hydraulic Height |
24 |
Nid Storage |
1346 |
Structural Height |
27 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
27 |
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-02a