Illinois State Route 108 is the main east-west highway across Greene County. This is one of the links from Greene County into Calhoun County. IL St Rt 108 passes through the following town in Greene County. Eldred
Carrollton
IL St Rt 108 is not multi-plexed in Greene County. IL St Rt 108 intersects the following highways in Greene County. U.S. Rt. 67, at Carrollton.
WB IL St Rt 108 at the Greene/Macoupin County Line. EB IL St Rt 108 east of IL St Rt 267. EB IL St Rt 108 west of IL St Rt 267. WB IL St Rt 108 east of Carrollton. EB IL St Rt 108 east of Carrollton. A junction marker on NB U.S. Rt. 67. EB IL St Rt 108 at U.S. Rt. 67. EB IL St Rt 108 at the top of the bluffs near Eldred. EB IL St Rt 108 near Eldred. WB IL St Rt 108 in Eldred.
