Illinois 5 Axle Semi Truck Size and Weight Limits



Illinois: 5 Axle Semi Truck

semi truck tractor trailer

Gross Weight Limits

Ruleset Jurisdiction Permit Required? Estimated Gross *
US Federal Class I and II Highways No 80,000 lbs

* This is an estimate as it does not include bridge and tire compliance.


Axle Weight Limits

Ruleset: US Federal

Jurisdiction: Class I and II Highways

Axle Group Tire Type Axle Spread Axle Weight Limit
Steer AxleSingle 20,000 lbs
Tandem DrivesDuals40 - 96 in 34,000 lbs
Trailer TandemDuals40 - 96 in 34,000 lbs
Trailer TandemDuals96 - 108 in 38,000 lbs
Trailer TandemDuals108 - 120 in 39,000 lbs
Trailer TandemDuals120 - 121 in 40,000 lbs

Dimension Restrictions

Class I and II HighwaysNon-State Highways
Dimension NameMinMaxMinMax
Overall Height13' 6"
Overall LengthNo Limit55' 0"
Overall Width8' 6"
Front OverhangNone Specified - Auto Carriers 3'
Rear Overhang4' 0" Max - Only applies to auto and boat carriers
Semi-Trailer Length53' 0"
Semi-Trailer Wheelbase
- Kingpin to Center of Rear Axle
45' 6"

References


Disclaimer

These figures are interpreted from the legal codes freely available, please read our full disclaimer and inform us of any errors!