Tennessee State Route 340

State Route 340 marker
State Route 340
Map
TN 340 highlighted in red
Route information
Maintained by TDOT
Length25.9 mi (41.7 km)
ExistedJuly 1, 1983[1]–present
Major junctions
South end US 25 / US 70 near Del Rio
Major intersections I-81 near Morristown
North end SR 113 near Morristown
Location
CountryUnited States
StateTennessee
CountiesCocke, Greene, Hamblen
Highway system
SR 339 SR 341

State Route 340 (SR 340) is a state highway in the eastern portion of the U.S. state of Tennessee. It travels south-to-north through portions of Cocke, Greene and Hamblen counties.

  1. ^ "The Road To 100 Years" (PDF). Tennessee Road Builder. Vol. 17, no. 5. September 2014. p. 22. Retrieved April 6, 2019.