Tennessee State Route 321
State Route 321 (SR 321) is a north–south state highway located entirely in Hamilton County in southeastern Tennessee. It traverses mainly the eastern outskirts of Chattanooga, and its eastern suburbs.
Route description
From the Georgia state line and the northern terminus of Georgia State Route 151, SR 321 begins a northerly course to intersect State Routes 320 and 317, the latter of which is located in Collegedale. Its northern terminus is at a junction with US 11/64 and SR 2 in Ooltewah. It is known as Ooltewah Ringgold Road for the entirety of its length.
Major intersections
The entire route is in Hamilton County.
| Location | mi | km | Destinations | Notes | |
|---|---|---|---|---|---|
| | 0.0 | 0.0 |   SR 151 south (Ooltewah Ringgold Road) – Ringgold | Southern terminus at the Georgia state line | |
| East Brainerd |   SR 320 west (East Brainerd Road) – Chattanooga | Eastern terminus of SR 320 | |||
| Collegedale |    SR 317 (Apison Pike) to I-75 – Chattanooga, Apison | ||||
| Ooltewah |   US 11 / US 64 (SR 2) to I-75 – Chattanooga, Cleveland | Northern terminus | |||
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi | |||||
