Scs-Delaware Creek Site-009 Reservoir Report
Last Updated: December 6, 2025
SCS-Delaware Creek Site-009, located in Johnston, Oklahoma, is a state-regulated dam designed by USDA NRCS with a primary purpose of Flood Risk Reduction.
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Summary
Built in 1966, this Earth-type dam stands at a height of 70 feet with a hydraulic height of 64 feet and a length of 1130 feet. With a Normal Storage capacity of 620 acre-feet and a Hazard Potential rated as High, this dam plays a crucial role in managing flood risks in the area.
The dam, situated on Delaware Creek and managed by the Oklahoma Water Resources Board, has a spillway type of Controlled with a width of 2 feet. It features one valve outlet gate and has a maximum discharge capacity of 10,400 cubic feet per second. Despite being assessed as in fair condition during the last inspection in December 2011, the dam poses a very high risk according to the Risk Assessment, emphasizing the importance of ongoing monitoring and maintenance to ensure its effectiveness in flood risk reduction.
With its significant storage capacity of 4,448 acre-feet and a surface area of 67 acres, SCS-Delaware Creek Site-009 serves as a vital infrastructure for flood control in the region. The dam's close proximity to the city of Cane and its critical role in mitigating the impacts of high-risk events underscore its importance in protecting lives and properties from potential flooding disasters. Climate and water resource enthusiasts will find this site a compelling example of infrastructure designed to address the challenges posed by extreme weather events and changing climate patterns.
Year Completed |
1966 |
Dam Length |
1130 |
Dam Height |
70 |
River Or Stream |
DELAWARE CREEK |
Primary Dam Type |
Earth |
Surface Area |
67 |
Hydraulic Height |
64 |
Nid Storage |
4448 |
Structural Height |
70 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
70 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Blue River Near Connerville
|
54cfs |
Pennington Creek Near Reagan
|
7cfs |
Clear Boggy Creek Near Caney
|
423cfs |
Rock Creek At Sulphur
|
8cfs |
Washita River Near Dickson
|
317cfs |
Blue River Near Blue
|
58cfs |
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-Delaware Creek Site-009