Irapuato, Guanajuato
The first segment runs westward from Zapotlanejo, Jalisco eastward to Irapuato, Guanajuato and connects to Guadalajara via Mexican Federal Highway 80. The total length of the highway segment is 217.6 km (135.2 mi). The second segment runs westward from Mascota, Jalisco eastward to Ameca, Jalisco. The total length of the highway segment is 118.1 km (73.4 mi). Federal Highway 90 connects to Puerto Vallarta via Jalisco State Highway 70.