Tennessee Valley Authority
Marion County, Tennessee
Power Supply Upgrade
Sequachee Valley EC proposes to build a new substation in Marion County, Tennessee and TVA proposes to build about 5.5 miles of transmission line to power the substation. The new transmission facilities are needed due to growth, which is causing equipment to approach overload conditions.
The proposed route would begin at the Nickajack-Jasper 161-kV tap near Nickajack Dam and continue northwest for approximately 3.5 miles. The route crosses Guntersville Lake/Tennessee River and continues northwest for six-tenths of mile to the railroad, where it would turn northeast, paralleling the railroad for 1.5 miles, before turning into the proposed Tennol 161-kV Substation, located at the old Tennol plant site.
TVA’s proposed route minimizes overall project impacts by using existing right-of-way. TVA would retire the old Nickajack-Jasper to Tennol 161-kilovolt line that is currently on the right-of-way and replace it with a new 161-kV transmission line on the same right-of-way. The existing line is mostly an old wood pole line and is not operational.
TVA proposes to expand part of the existing right-of-way from 75 to 100 feet and will work with property owners to obtain easements for construction and maintenance of the line. Property owners retain possession of the property and are compensated for the easement at fair market value.
Approximately 21 property tracts are affected by the existing right-of-way.
The transmission line would consist of steel pole structures centered on both 75 and 100-foot right-of-ways.
The new facilities are expected to be in service November 2010.
Map
The map is a PDF file requiring Adobe Acrobat Reader. Use the zoom tool to view details of the map and allow time for it to reload. If you have questions or need help understanding the map, please contact TVA.
Map of proposed transmission line route (PDF, 4.7 mb)
Environmental Reviews
The appropriate National Environmental Policy Act review will be conducted to ensure that the environmental impacts are minimized. TVA attempts to minimize any land requirements, private property impacts, and environmental impacts associated with this project.
Project schedule
Begin contacting property owners for permission to survey: spring 2009
Begin field surveys and environmental reviews: summer 2009
Begin Construction: Spring 2010
Line in-service: June 2010
Related information
Frequently asked questions about TVA right-of-way
Electric and magnetic fields and their effects
Benefits of planting native shrubs and grasses in utility rights-of-way.
- Landscaping with native shrubs (PDF file, 879 kb)
- Landscaping with native grasses (PDF file, 644 kb)