Scs-Sallisaw Creek Site-32 Reservoir Report

Last Updated: December 5, 2025

SCS-Sallisaw Creek Site-32, located in Sequoyah County, Oklahoma, is a state-regulated dam designed by the USDA NRCS with a primary purpose of flood risk reduction.


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Summary

Completed in 1966, this earth dam stands at a height of 38 feet and spans a length of 1090 feet, providing a maximum storage capacity of 3453 acre-feet. The dam is situated on the Hog Creek and is under the jurisdiction of the Oklahoma Water Resources Board (OWRB).

With a hazard potential rated as high and a risk assessment indicating very high risk, SCS-Sallisaw Creek Site-32 poses a significant challenge in terms of management and maintenance. Despite being assessed as in fair condition, the dam has not been inspected since December 2011, highlighting the need for regular monitoring and upkeep to ensure its structural integrity and functionality. The presence of a controlled spillway with slide gates adds to the complexity of this dam's operation in the event of high water levels.

For water resource and climate enthusiasts, SCS-Sallisaw Creek Site-32 serves as an intriguing case study in dam infrastructure management and the importance of proactive risk assessment and mitigation measures. The dam's location in a high-risk area underscores the critical role it plays in protecting downstream communities from potential flooding events. As efforts to address climate change intensify, ensuring the safety and resilience of dams like SCS-Sallisaw Creek Site-32 will be crucial in safeguarding water resources and enhancing overall environmental sustainability in the region.

Year Completed

1966

Dam Length

1090

Dam Height

38

River Or Stream

HOG CR

Primary Dam Type

Earth

Surface Area

41

Hydraulic Height

38

Drainage Area

17.2

Nid Storage

3453

Structural Height

38

Outlet Gates

Slide (sluice gate)

Hazard Potential

High

Foundations

Soil

Nid Height

38
       
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Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.