 State Route 173 | ||||
|---|---|---|---|---|
 SR 173 highlighted in red | ||||
| Route information | ||||
| Maintained by TDOT | ||||
| Length | 13.1 mi (21.1 km) | |||
| Major junctions | ||||
| West end |    I-26 / US 19W / US 23 in Unicoi | |||
 SR 107 in Unicoi | ||||
| East end |  US 19E in Tiger Valley | |||
| Location | ||||
| Country | United States | |||
| State | Tennessee | |||
| Counties | Unicoi, Carter | |||
| Highway system | ||||
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State Route 173 (SR 173) is a state highway in Unicoi and Carter counties in the U.S. state of Tennessee. It connects the town of Unicoi with the community of Tiger Valley.