Tennessee State Route 346
|Maintained by TDOT|
|Length:||24.3 mi (39.1 km)|
|South end:||US 11W / SR 1 in Surgoinsville|
|US 11W / SR 1 in Church Hill|
|North end:||US 23 / SR 36 / SR 137 in Kingsport|
SR-346 begins at an intersection with US-11W/SR-1 in Surgoinsville and heads northeast through downtown and has a second intersection with US-11W/SR-1 and turns east onto US-11W/SR-1. The three routes begin a concurrency to Church Hill and then it turns northeast onto Main Street and then turns north onto North Central Avenue. and continues until it leaves the city limits of Church Hill, where it becomes Carter's Valley Road and crosses over the North Fork Holston River into Sullivan County and it meets its northern terminus, an intersection with US-23/SR-36/SR-137 on the north side of Kingsport just 0.2 miles (0.32 km) from the Virginia state-line.
This section contains a table that is missing mileposts for one or more junctions.
|Hawkins||Surgoinsville||US 11W / SR 1 – Rogersville||Southern terminus|
|US 11W / SR 1 – Church Hill||Begin concurrency with US-11W & SR-1|
|Church Hill||US 11W north / SR 1 east – Mount Carmel, Kingsport||End concurrency with US-11W & SR-1|
|Sullivan||Kingsport||I-26 east / US 23 / SR 36 south (Lynn Garden Drive) / SR 137 – Kingsport, Weber City, Gate City||Northern terminus; road continues east as East Carter's Valley Road; I-26 exit 0|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi