Sequoyah - Ccw Discharge Channel Reservoir Report

Last Updated: December 14, 2025

The Sequoyah - CCW Discharge Channel is a vital water resource infrastructure located in Chattanooga, Tennessee, managed by the Tennessee Valley Authority.


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Summary

Completed in 1981, this earth dam stands at a height of 41 feet and has a storage capacity of 100 acre-feet, primarily serving the purpose of water supply. With a maximum discharge capacity of 2500 cubic feet per second and a controlled spillway, the dam plays a crucial role in managing water flow in the Tennessee River offstream.

Despite its low hazard potential, the Sequoyah dam is subject to regular inspections and maintenance by the Tennessee Valley Authority to ensure its structural integrity and operational efficiency. With a risk assessment rating of "Very High (1)", there is a strong emphasis on risk management measures and emergency preparedness. The dam's vertical lift outlet gates and stone core design highlight its robust construction and adherence to safety standards, making it a key component of water resource management in the region.

As a federally owned and operated structure, the Sequoyah - CCW Discharge Channel underscores the importance of effective water resource management and infrastructure maintenance in mitigating potential risks and ensuring the continued supply of water for various purposes. Positioned within the Nashville District and managed by the Tennessee Valley Authority, this dam serves as a testament to responsible stewardship of water resources in the face of changing climate patterns and increasing demands for water supply.

Year Completed

1981

Dam Length

576

Dam Height

41

River Or Stream

TENNESSEE RIVER - OFFSTREAM

Primary Dam Type

Earth

Surface Area

5

Drainage Area

0.03

Nid Storage

100

Outlet Gates

Vertical Lift

Hazard Potential

Low

Foundations

Soil

Nid Height

41
       
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.