Scs-Cottonwood Creek Site-19 Reservoir Report
Last Updated: December 6, 2025
SCS-Cottonwood Creek Site-19 is a State-owned structure located in Cashion, Oklahoma, along the TR-Cottonwood Creek.
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Summary
Built in 1967 by the USDA NRCS, this Earth dam stands at a height of 38 feet and has a length of 1750 feet. With a primary purpose of Flood Risk Reduction, it has a maximum storage capacity of 464 acre-feet and a normal storage of 84 acre-feet. The dam has a controlled spillway type with a width of 1 foot and is equipped with a valve outlet gate.
Despite being last inspected in 1980, this low hazard potential structure is in a condition that has not been rated. However, it is noteworthy that the risk assessment for SCS-Cottonwood Creek Site-19 is very high, with a DSAC assigned date of None and no risk management measures reported. The dam is under the jurisdiction of the Oklahoma Water Resources Board (OWRB) and falls within the Tulsa District of the US Army Corps of Engineers. For water resource and climate enthusiasts, this site serves as an important reminder of the ongoing need for monitoring and maintenance of critical infrastructure to mitigate the risk of potential flooding events in the region.
Year Completed |
1967 |
Dam Length |
1750 |
Dam Height |
38 |
River Or Stream |
TR-COTTONWOOD CREEK |
Primary Dam Type |
Earth |
Surface Area |
15 |
Hydraulic Height |
38 |
Nid Storage |
464 |
Structural Height |
38 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
38 |
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-Cottonwood Creek Site-19