Tennessee State Route 81
SR 81 highlighted in red | ||||
| Route information | ||||
| Maintained by TDOT | ||||
| Length | 25.7 mi (41.4 km) | |||
| Major junctions | ||||
| South end | I-26 / US 23 / US 19W / SR 107 in Erwin | |||
| SR 107 in Lamar | ||||
| North end | SR 93 near Fall Branch | |||
| Location | ||||
| Country | United States | |||
| State | Tennessee | |||
| Counties | Unicoi, Washington | |||
| Highway system | ||||
| ||||
State Route 81 (SR 81) is a 25.7-mile-long (41.4 km) state highway in northeastern Tennessee. It travels in Unicoi and Washington counties. It connects Fall Branch with Erwin.