Scs-Sallisaw Creek Site-13 Reservoir Report

Last Updated: December 5, 2025

SCS-Sallisaw Creek Site-13, located in Bunch, Adair County, Oklahoma, is a state-regulated earth dam constructed in 1966 by the USDA NRCS for flood risk reduction on Hamlin Hollow.


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Summary

Standing at a height of 48 feet with a length of 840 feet, this dam has a storage capacity of 855 acre-feet and a drainage area of 1.93 square miles. Its spillway is controlled, with a width of 1 foot, and it features a valve outlet gate for water release.

Despite being classified as having a high hazard potential and fair condition, this dam has not been modified in recent years and is inspected annually. The risk assessment for SCS-Sallisaw Creek Site-13 rates it as very high, highlighting the critical importance of its maintenance and monitoring. The dam is under the jurisdiction of the Oklahoma Water Resources Board (OWRB) and serves as a crucial infrastructure for managing flood risks in the region.

With its strategic location and significant storage capacity, SCS-Sallisaw Creek Site-13 stands as a vital piece of infrastructure in Oklahoma's water resource management. As climate change continues to impact the frequency and intensity of extreme weather events, the maintenance and operation of this dam are crucial for safeguarding the surrounding community and mitigating potential flood risks.

Year Completed

1966

Dam Length

840

Dam Height

48

River Or Stream

HAMLIN HOLLOW

Primary Dam Type

Earth

Surface Area

8

Hydraulic Height

48

Drainage Area

1.93

Nid Storage

855

Structural Height

48

Outlet Gates

Valve - 1

Hazard Potential

High

Foundations

Soil

Nid Height

48
       
Seasonal Comparison

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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.