Denote exact part of route associated with a warning
RoadTrippers has a stretch of road highlighted from McCormick Place in Chicago to Maquoketa Caves State Park. The entire stretch is highlighted in RED and indicates "vehicle too tall for route" yet I have not put in my trailer dimensions. I cannot figure out what part of this 3.5 hour route is of concern which seems to be mostly comprised of highways 55, Route 88 and Route 61. Looking up Illinois height limits etc, my trailer falls within both the width and height limitations.