Sallisaw Reservoir Report

Last Updated: December 5, 2025

Sallisaw, also known as City Lake, is a local government-owned water supply dam located in Sequoyah, Oklahoma.


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Summary

Completed in 1959, this earth dam stands at 28 feet tall with a hydraulic height of 25 feet and a length of 1200 feet. Its primary purpose is to provide water supply to the surrounding area, with a maximum storage capacity of 68 acre-feet and a normal storage of 39 acre-feet.

The dam is regulated by the Oklahoma Water Resources Board (OWRB) and is inspected, permitted, and enforced by state agencies. Despite being classified as low hazard potential, the risk assessment for Sallisaw indicates a very high risk level (1). The dam features a controlled spillway, one valve outlet gate, and has not been rated for its condition assessment.

With its strategic location on the TR-SHILOH BR stream and the potential to mitigate water resource challenges in the region, Sallisaw is a significant infrastructure for water resource and climate enthusiasts to monitor. As one of the vital water supply sources in the area, this dam plays a crucial role in ensuring water availability and resilience against potential hazards.

Year Completed

1959

Dam Length

1200

Dam Height

28

River Or Stream

TR-SHILOH BR

Primary Dam Type

Earth

Surface Area

5

Hydraulic Height

25

Nid Storage

68

Structural Height

28

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

28
       
Seasonal Comparison

Weather Forecast

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.