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.Major intersections