GROSS VEHICLE WEIGHT
Two consecutive sets of tandems may carry 34,000 pounds each providing the overall distance between the first and last axles of such consecutive sets of tandems is 36 feet or more.
Maximum legal weight for vehicles on all highways based on Federal Bridge Formula. (see table in DOC 2)
5 AXLE VEHICLE
6 AXLE VEHICLE
Cook County Expressways – Movement of loads exceeding 12’ in width, 13’ 6” in height, or 120,000 pounds or the own powered equivalent are prohibited on the expressways in Cook County except;
Own powered equivalents are: 4 or more axle vehicle up to 80,000 pounds gross; maximum 48,000 pounds on a tandem and 25,000 pounds per axle: or a 3 or more axle vehicle up to 68,000 pounds gross; maximum 48,000 pounds on a tandem and 25,000 pounds per axle: or a 2 axle vehicle up to 48,000 pounds with no axle exceeding 25,000 pounds