Tennessee State Route 343 is a north-south highway in Western Hamblen County. It runs from U.S. Rt. 25E; Tennessee State Route 32/113, south of Morristown, to U.S. Rt. 25E/Tennessee State Route 32, at Morristown. TN St Rt 343 passes through the following town in Hamblen County. Morristown
A junction marker on NB U.S. Rt. 25E; TN St Rt 32/113. A guide marker on NB U.S. Rt. 25E; TN St Rt 32/113. A guide marker on NB U.S. Rt. 25E; TN St Rt 32/113. A BGS on NB TN St Rt 160. A guide marker on the ramp from NB TN St Rt 160. NB TN St Rt 343 north of TN St Rt 160. NB TN St Rt 343 south of U.S. Rt. 11E/TN St Rt 34. NB TN St Rt 343 near Cherokee Drive.