 Business US 31 in South Bend follows the former US 31 north from the US 20/US 31/St.Joseph Valley Parkway interchange on the south side of the city, joining SR 933 south of downtown, then turns west along Cleveland Road just north of the Indiana Toll Road (Interstate 80/90) to return to US 31.The route had been planned to continue into Michigan along the former US 31 route which at the time carried US 33, but the Michigan Department of Transportation did not approve of the routing.