Shady Grove, Tennessee

Proposed Transmission Project

Update – July 2019

TVA has identified the preferred route for a transmission line that would provide power for growing load and increase power reliability in the Shady Grove area of Clarksville, Tennessee.

TVA evaluated each route using social, engineering, and environmental factors. Information sources included available data, aerial photography, limited onsite reviews, public review and comment, and property owner input. Based on public input and evaluation, the preferred route is expected to have the least overall project impacts of the alternatives.

TVA’s proposed 5.5-mile line would begin at their existing Montgomery-Clarksville No. 3 161-kV Transmission Line northeast of the Interstate 24 and Highway 76 interchange. From there, the line would head south to the Shady Grove Substation on Durham Road that will be rebuilt by Cumberland Electric Membership Corporation (CEMC). The majority of TVA’s proposed line would utilize existing right of way.

The route selected is No. 17 which consists of segment Nos. 1, 2, 6, 8, 11, 12, 13, 16, 17 and 18 as presented at the open house in May 2019.

For 1.4 miles, TVA would rebuild an existing CEMC line to double-circuit. For about 3 miles, an additional 75 feet of width would be purchased adjacent to existing 100-foot-wide CEMC right of way. The remaining 1.1 miles would be built using single, steel poles centered on new 100-foot-wide right of way.

Surveys of the right of way are scheduled to begin in fall 2019.
Easement purchases are scheduled to begin in fall 2020.
Construction is scheduled to begin in spring 2021.
The line is scheduled to be in service in summer 2021.

Background

photo of power linesTVA is considering improvements to its transmission system that would provide power for growing load and increase power reliability in the Shady Grove area of Clarksville, Tennessee.

Cumberland Electric Membership Corporation (CEMC) will rebuild their Shady Grove Substation in Clarksville, Tennessee, from 69- to 161-kV. TVA is proposing to build about 5.5 miles of single-circuit transmission line to provide power to the rebuilt substation.

TVA’s proposed power line would begin at TVA’s existing Montgomery-Clarksville No. 3 161-kV Transmission Line northeast of the Interstate 24 and Highway 76 interchange. From there, the new line would head south to the rebuilt Shady Grove Substation on Durham Road. TVA would also install two switches on the Montgomery-Clarksville No. 3 161-kV Transmission Line.

The new line would be built using single, steel poles centered on new 100-foot-wide right of way. Right of way would be widened by 75 feet where TVA’s proposed line would parallel CEMC right of way.

There are 18 alternate line segments and 20 alternative line routes under consideration. The line would be built on steel pole, single-circuit structures.

TVA will hold an open house on Thursday, May 16, 2019, to provide information, answer questions and receive comments about the proposed transmission project.
The project is expected to be in service in summer 2021. Construction is scheduled to begin in spring 2021. (Dates are subject to change. During projects of this magnitude, unexpected issues may arise, resulting in the need to adjust the schedule.)

Public involvement

TVA held an open house in May 2019 to discuss the project and answer questions. A 30-day comment period followed the open house.

Map

The map shows the network of alternative routes TVA is considering for the proposed transmission line. The map is also available below as a PDF file.

Preferred route of proposed transmission line (PDF, 4.9 mb)
Possible routes of proposed transmission line (PDF, 4.9 mb)
If you have questions or need help understanding the map, please contact TVA.

Environmental reviews

The National Environmental Policy Act review is expected to be completed 2018.

Efforts are made during the siting process to avoid or minimize impacts to floodplains and wetlands in accordance with Executive Orders 11988 and 11990. Floodplains and wetlands along with alternative routes are shown on the referenced map. The map illustrates how each alternative route avoids or impacts floodplains and wetlands. Because of project and topographic constraints and because of minimizing impacts to other social, environmental, and engineering resources, no practicable alternative may be available that would allow complete avoidance of impacts to floodplains and wetlands which may require mitigation for minimizing impacts. Also, best management practices would be utilized throughout the project to minimize adverse floodplain and wetland impacts. In compliance with Section 404 of the Clean Water Act, TVA will be coordinating wetland findings with U. S. Army Corps of Engineers.

Project schedule

(Dates are subject to change. During projects of this magnitude, unexpected issues may arise, resulting in the need to adjust the schedule.)

Open house May 16, 2019
Comments accepted June 17, 2019
Determine preferred route for field surveys Summer 2019
Surveys of the right of way are scheduled to begin Fall 2019
Easement purchases are scheduled to begin Fall 2020
Construction is scheduled to begin Spring 2021
Project in service Summer 2021

Contact

More information on this project can be obtained from:

Cherie  Minghini

newtransline@tva.gov
(800) 362-4355
1101 Market Street, MR 4G
Chattanooga, TN 37402