Tennessee State Route 309

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State Route 309

Union Grove Road
SR 309 highlighted in red
Route information
Maintained by TDOT
Length2.6 mi (4.2 km)
ExistedJuly 1, 1983[1]–present
Major junctions
West end I-75 near Niota
East end US 11 in Niota
CountryUnited States
Highway system
SR 308 SR 310

State Route 309 (SR 309), also known as Union Grove Road, is a 2.6-mile-long (4.2 km) east–west state highway in McMinn County, Tennessee. It serves as the primary access road from Interstate 75 (I-75, Exit 56) to the town of Niota.

Route description

SR 309 begins at an interchange with I-75 (Exit 56). 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 (US 11, Willson Street/SR 2) on the north side of town.[2]

Major intersections

The entire route is in McMinn County.

0.00.0 I-75 – Chattanooga, KnoxvilleI-75 exit 56; western terminus
Niota2.64.2 US 11 (Willson Street/SR 2) – Athens, SweetwaterEastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ "The Road To 100 Years" (PDF). Tennessee Road Builder. Vol. 17, no. 5. September 2014. p. 22. Retrieved April 6, 2019.
  2. ^ Google (July 31, 2019). "State Route 309" (Map). Google Maps. Google. Retrieved July 31, 2019.