Scs-Uncle John Creek Site-12 Reservoir Report
Last Updated: December 5, 2025
SCS-Uncle John Creek Site-12 in Kingfisher, Oklahoma, is a state-regulated earth dam built in 1967 by the USDA NRCS with a primary purpose of flood risk reduction.
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Summary
The dam stands at a height of 31 feet with a length of 4500 feet, providing a storage capacity of 1437 acre-feet and a surface area of 34 acres. It is located on TR-Clear Creek within the Tulsa District of Oklahoma, under the regulatory authority of OWRB.
Despite its low hazard potential, the dam has a very high risk assessment rating due to its critical role in flood protection for the surrounding area. The dam is equipped with a controlled spillway and a single valve outlet gate for water release in case of high water levels. However, the dam's condition assessment is currently not rated, with the last inspection date dating back to 1980. Emergency action plans and risk management measures for the dam have not been updated or prepared, highlighting the need for ongoing monitoring and maintenance to ensure its continued effectiveness in flood risk reduction.
Year Completed |
1967 |
Dam Length |
4500 |
Dam Height |
31 |
River Or Stream |
TR-CLEAR CR |
Primary Dam Type |
Earth |
Surface Area |
34 |
Hydraulic Height |
31 |
Nid Storage |
1437 |
Structural Height |
31 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
31 |
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-Uncle John Creek Site-12