Tennessee State Route 340 is a short north-south highway in Hamblen County. TN St Rt 340 does not pass through any towns in Hamblen County. TN St Rt 340 is not multi-lexed in Hamblen County. TN St Rt 340 intersects the following highways in Hamblen County. Tennessee State Route 113, near Mohawk. Interstate 81, near Mohawk.
