EB IL St Rt 56 at the Cook/Du Page County Line. EB IL St Rt 56 near Darmstadt Road. EB IL St Rt 56 in Hillside. EB IL St Rt 56 near Washington Blvd. A junction marker on EB U.S. Rt. 12/20; SB U.S. Rt. 45. A junction marker on WB U.S. Rt. 12/20; SB U.S. Rt. 45. A guide marker on WB U.S. Rt. 12/20; SB U.S. Rt. 45. The begin sign in Bellwood. Looking at the intersection of IL St Rt 56 and U.S. Rt. 12/20/45 in Bellwood. The end sign at U.S. Rt. 12/20/45 in Bellwood. The eastern end of IL St Rt 56.