Scs-Jack Creek Site-4 Reservoir Report
Last Updated: December 5, 2025
SCS-Jack Creek Site-4, located in Cookietown, Oklahoma, is a state-regulated earth dam designed by the USDA NRCS in 1976 for flood risk reduction along the TR-Jack Creek.
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Summary
This impressive structure stands at 23 feet high with a hydraulic height of 20 feet and a length of 2280 feet, providing a maximum storage capacity of 1273 acre-feet. With a controlled spillway and a low hazard potential, this dam plays a crucial role in managing water resources in Tillman County.
Despite being constructed over four decades ago, the dam at SCS-Jack Creek Site-4 continues to serve its purpose effectively, with a very high risk assessment rating denoting its importance in mitigating flood risks in the area. While its condition assessment is currently not rated, the dam remains under regular inspection and enforcement by the State of Oklahoma, ensuring its structural integrity and safety. With one valve outlet gate and a surface area of 62 acres, this dam stands as a testament to effective water resource management and climate resilience in the region.
As water resource and climate enthusiasts, the SCS-Jack Creek Site-4 offers a fascinating example of sustainable infrastructure designed to protect communities and ecosystems from the impacts of extreme weather events. Its role in flood risk reduction and water storage highlights the importance of proactive measures in adapting to a changing climate. With its low hazard potential and high-risk assessment, this dam represents a vital piece of infrastructure in safeguarding water resources in Tillman County, Oklahoma, now and into the future.
Year Completed |
1976 |
Dam Length |
2280 |
Dam Height |
23 |
River Or Stream |
TR-JACK CREEK |
Primary Dam Type |
Earth |
Surface Area |
62 |
Hydraulic Height |
20 |
Nid Storage |
1273 |
Structural Height |
23 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
23 |
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-Jack Creek Site-4