The Illinois Department of Transportation operates two free ferries across the Illinois River. These ferries are operated 24 hours a day, seven days a week. The Brussels ferry is located one mile west of Grafton and crosses the Illinois River linking Illinois Route 100 to Calhoun County, near Brussels. The Kampsville ferry crosses the Illinois River connecting Illinois Route 108 and Illinois Route 100, near Kampsville.

The Kentucky Transportation Cabinet, by agreement with the Illinois Department of Transportation, provides free ferry service across the Ohio River, seven days a week, from 6:00 a.m. – 9:30 p.m. The Cave-in-Rock ferry crosses the Ohio River between Illinois Route 1 and Kentucky Route 91, near Cave-in-Rock. Ferry closures can be accessed at the IDOT web site under road closures.