Scs-Tri-County Turkey Creek Site-02 Reservoir Report
Last Updated: December 20, 2025
SCS-Tri-County Turkey Creek Site-02, located in Duke, Oklahoma, is a state-regulated earth dam designed by USDA NRCS in 1970 for flood risk reduction purposes along the TR-Turkey Creek.
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Summary
With a height of 30 feet and a length of 3600 feet, this dam has a maximum storage capacity of 701 acre-feet and a normal storage capacity of 257 acre-feet. Despite its low hazard potential, the risk assessment for this site indicates a very high risk level, warranting further attention.
The dam features a controlled spillway with a width of 2 feet and one outlet gate for water release. The last inspection was conducted in 1988, and the condition assessment is currently not rated. The site is under the jurisdiction of the Oklahoma Water Resources Board (OWRB) and meets state permitting, inspection, and enforcement requirements. Although the emergency action plan status and risk management measures are not specified, the dam's design and purpose for flood risk reduction highlight its crucial role in protecting the surrounding area from potential inundation events.
Given its strategic location and design specifications, SCS-Tri-County Turkey Creek Site-02 serves as a critical infrastructure asset for managing water resources and mitigating flood risks in the Harmon, Oklahoma region. Further monitoring and maintenance efforts may be required to uphold the dam's functionality and ensure the safety of downstream communities in the face of climate variability and extreme weather events. Water resource and climate enthusiasts will find this site's data and risk assessment particularly intriguing for exploring the intersection of infrastructure resilience and environmental stewardship in the context of water management.
Year Completed |
1970 |
Dam Length |
3600 |
Dam Height |
30 |
River Or Stream |
TR-TURKEY CREEK |
Primary Dam Type |
Earth |
Surface Area |
55 |
Hydraulic Height |
24 |
Nid Storage |
701 |
Structural Height |
30 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
30 |
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-02