Tennessee State Route 309

State Route 309, also known as Union Grove Road, is a east–west state highway in McMinn County, Tennessee. It serves as the primary access road from Interstate 75 to the town of Niota.

Route description

SR 309 begins at an interchange with I-75. It heads east past a few roadside businesses before passing through farmland as a two-lane highway. It then enters Niota and comes to an end at an intersection with U.S. Route 11 on the north side of town.