Transportation Department 1004 E Route 30 Rock Falls, IL 61071 Phone : (815) 625-1822 Business Category Port Authorities Illinois State Of--transportation Dept Of, Division Of Highways, Rock Falls Maintenance Yard 1004 E Rock Falls Rd Rock Falls, IL 61071 Phone : (815) 625-1822 Business Category Government Offices-State Transportation Services Local Passenger Transportation Government Offices State & Local Government Offices & Public Schools