I-81, exit 23 interchange at SR-34 (west andrew johnson highway) - interchange lighting

The Federal Highway Administration awarded the Tennessee Department of Transportation $130,000 under a Cooperative Agreement on December 9, 2025, to upgrade lighting at the Interstate 81, Exit 23 interchange at State Route 34 (West Andrew Johnson Highway) in Mosheim, Greene County, Tennessee.

The project replaces high-pressure sodium (HPS) fixtures with LED fixtures on an existing lighting system that is over 16 years old and requires repairs before retrofitting. The work includes necessary repairs to major system components and installation of LED fixtures with equivalent wattage and specifications to the current HPS configuration. Performance extends through June 1, 2028.

This award funds work under the Carbon Reduction Program (CFDA 20.265), which provides funding for projects designed to reduce carbon dioxide emissions from on-road highway sources.

Project description

The project, located in the town of mosheim, greene county at exit 23 on i-81, involves upgrading the existing lighting system by installing led fixtures to replace the current high-pressure sodium (HPS) fixtures. The existing system, now over 16 years old, requires some repairs before retrofitting the poles with equivalent led wattage and specifications. As long as the major components of the existing system are necessary for the HPS-to-led conversion, they are eligible for CRP funding.