Interstate 35 is a north-south interstate in Iowa. This runs through the center of the state. I-35 is the only interstate in Iowa to have a business route. It also has a spur at Des Moines. From near U.S. Rt. 18, M.P. 190 near Mason City north, this highway is on the "Ave. of the Saints. While in Iowa, I-35 is multi-plexed.
I-35 is multi-plexed with... ...Interstate 80, at Des Moines.
BGS on NB I-35/EB I-80. Overhead signs on NB I-35/EB I-80 at I-35/235. Branches of I-35 in Iowa. NB I-35 at the Iowa/Minnesota State Line. A junction marker on WB BUSN U.S. Rt. 18/IA St Rt 122. SB I-35; EB U.S. Rt. 18; SB IA St Rt 27 near Mason City. A junction marker on WB IA St Rt 92. A BGS on WB IA St Rt 92. SB I-35 south of IA St Rt 92. SB I-35 near St. Charles. SB I-35 near Truro. SB I-35 at the Warren/Clarke County Line. Guide markers on EB U.S. Rt. 34. A junction marker on WB U.S. Rt. 34. Guide markers on WB U.S. Rt. 34.
