Tennessee State Route 321
| Ooltewah Ringgold Road | ||||
SR 321 highlighted in red | ||||
| Route information | ||||
| Maintained by TDOT | ||||
| Length | 7.1 mi (11.4 km) | |||
| Existed | July 1, 1983–present | |||
| Major junctions | ||||
| South end | SR 151 at the Georgia state line | |||
| SR 320 in East Brainerd SR 317 in Collegedale | ||||
| North end | US 11 / US 64 in Ooltewah | |||
| Location | ||||
| Country | United States | |||
| State | Tennessee | |||
| Counties | Hamilton | |||
| Highway system | ||||
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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.