Scs-Tri-County Turkey Creek Site-16a Reservoir Report
Last Updated: December 21, 2025
Located in Duke, Oklahoma, the SCS-Tri-County Turkey Creek Site-16a is a state-regulated earth dam designed by the USDA NRCS in 1966 for flood risk reduction along the Turkey Creek.
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Summary
With a height of 28 feet and a hydraulic height of 24 feet, this dam boasts a storage capacity of 211 acre-feet and a normal storage of 66 acre-feet. The dam, constructed with stone core types and a soil foundation, spans a length of 1090 feet and has a controlled spillway with a width of 1 foot.
Despite being classified as having a low hazard potential, the SCS-Tri-County Turkey Creek Site-16a is considered to have a very high risk level according to the data, emphasizing the importance of regular inspections and maintenance. The last inspection conducted on this dam was in June 1988, with an inspection frequency of 5 years. While the condition assessment is marked as "Not Rated," the dam is equipped with a valve outlet gate and has not been modified in recent years.
Although emergency action plans and risk management measures are not specified for this site, the dam remains under state jurisdiction and regulatory oversight by the OWRB. As climate change continues to impact water resources, structures like the SCS-Tri-County Turkey Creek Site-16a play a crucial role in mitigating flood risks and protecting communities in the region.
Year Completed |
1966 |
Dam Length |
1090 |
Dam Height |
28 |
River Or Stream |
TR-TURDEY CR |
Primary Dam Type |
Earth |
Surface Area |
11 |
Hydraulic Height |
24 |
Nid Storage |
211 |
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-Tri-County Turkey Creek Site-16a