Illinois State Route 100 is a north-south highway in Calhoun County. It is the main north-south highway of the county. IL St Rt 100 passes through the following towns in Calhoun County. Hardin
Michael
Kampsville
IL St Rt 100 is not multi-plexed in Calhoun County. IL St Rt 100 intersects the following highways in Calhoun County. Illinois State Route 96, at Kampsville.
NB IL St Rt 100 on the eastern bank of the Illinois River. NB IL St Rt 100 on the eastern side of the bridge. NB IL St Rt 100 at the first gates fo the bridge. NB IL St Rt 100 near the draw tower on the Illinois River bridge. NB IL St Rt 100 at the draw section of the river bridge. NB IL St Rt 100 on the westside of the bridge. NB IL St Rt 100 at Hardin. NB IL St Rt 100 near Hardin. A Calhoun County mile marker. NB IL St Rt 100 south of Michael. NB IL St Rt 100 south of Kampsville. NB IL St Rt 100 at Kampsville. NB IL St Rt 100 north of Kampsville.