Tennessee State Route 78 is a north-south highway in North-Central Dyer County. TN St Rt 78 passes through the following town in Dyer County. Bogota TN St Rt 78 is not multi-plexed in Dyer County. TN St Rt 78 intersects the following highways in Dyer County. Tennessee State Route 104, at Dyersburg. U.S. Rt. 51, near Dyersburg. Tennessee State Route 3, near Dyersburg. Interstate 155, near Dyersburg. U.S. Rt. 412, near Dyersburg. Tennessee State Route 182, near Lenox. Tennessee State Route 103, near Bogota.
