Business Loop I-35 - Ames

Iowa designated its first Interstate business route in 1993; it was formally approved by AASHTO on October 27, 1995. The 8.92 mile long alignment originates at the cloverleaf interchange (Exit 111) with the freeway bypass along U.S. 30 to the southeast of Ames. It overlaps with U.S. 30 west to U.S. 69 (Duff Avenue) at Exit 148. Duff Avenue constitutes a busy arterial northward as both U.S. 69/Business Loop I-35 to Lincoln Way (old U.S. 30). Lincoln Way leads the pair west to Grand Avenue while en route to Iowa State University (ISU). Grand Avenue takes the route north by Downtown to 13th Street, which carries Business Loop I-35 east to Exit 113.