Overweight/Overdimension Vehicle Permits

A permit is necessary for the movement of vehicles exceeding weight and size limits on the Illinois Tollway.

This page details those weight and size limitations, permit fees and restrictions on movements.

All vehicles must have a state Illinois Department of Transportation (IDOT) permit number prior to obtaining a Tollway permit. Illinois Tollway requirements are consistent with the rules and regulations of IDOT.

Time of day and holiday travel restrictions apply to some vehicles. Learn more.

 

For more information
and to request online access to permits
call

630-241-6800 ext. 3847


Overweight Limitations and Fees

Legal Weight Limit - No Permit Required

Single axles:

All single axles not more than 20,000 pounds.

 

Axles in tandem:

2-axle tandems (axles spacing 4 feet to 8 feet) not more than 34,000 pounds.
3-axle tandems (outside axles 8 feet to 10 feet) not more than 42,000 pounds.
 
 
 

Gross Vehicle Weight

Number of Axles Maximum Weight Minimum Outside
Axle Spacing
2 36,000 pounds 10 feet
3 60,000 pounds 32 feet
4 80,000 pounds 57 feet
5 80,000 pounds 51 feet
6 80,000 pounds 43 feet

Permit Required - Routine Issue (No special analysis required)

Single axles:

Any single axle over 20,000 pounds but under 25,000 pounds.

 

Axles in tandem:

2-axle tandems (axles spacing 4 feet to 8 feet) more than 34,000 pounds but less than 48,000 pounds.
3-axle tandems (outside axles 8 feet to 10 feet) more than 42,000 pounds but less than 60,000 pounds.


Gross Vehicle Weight

Number of Axles Maximum Weight Minimum Outside
Axle Spacing
2 36,001 pounds to 48,000 pounds 10 feet
3 68,000 pounds 14 feet
4 76,000 pounds 36 feet
5 80,001 pounds to 100,000 pounds 40 feet
6 80,001 pounds to 120,000 pounds 44 feet

Overdimension Limitations and Fees

Overwidth
Not exceeding 8 feet 6 inches wide Permit not required
More than 8 feet 6 inches to 12 feet wide $15.00
  • Overwidth permits are obtained only at Illinois Tollway mainline toll plazas. 
  • Wide load lanes are posted at all toll plazas.

 

Overlength
Vehicles exceeding 100 feet or loads exceeding 80 feet in length $15.00

To obtain an overlength permit, call 630-241-6800 extension 3847.

 

Overheight
Vehicles exceeding 13 feet 6 inches but not exceeding 14 feet 6 inches $15.00

Overheight permits are obtained at the toll plazas.

Superloads

Vehicles not within the weight and axle spacings limits for a routine issue permit are designated a superload and require a special analysis. Please contact the Tollway a minimum of three business days prior to the movement of a superload.

The Illinois Tollway regulates and issues permits for superloads crossing over bridges spanning the Tollway. Routine issue permits are issued by IDOT. If you are routing a superload over a bridge crossing the Tollway, you must request a permit.


Vehicles are typically designated a Superload if:

  • The width is greater than 12 feet.
  • The length is greater than 145 feet.
  • The height is greater than 14 feet 6 inches.
  • Any axle exceeds 25,000 pounds.
  • The gross weight is greater than 120,000 pounds.
  • Any tractor tandem is greater than 48,000 pounds.
  • Any trailer tandem is greater than 60,000 pounds.
  • Any trailer has 2 or more tandems.


Equipment such as cranes, drill rigs and concrete pumps must be analyzed on an individual basis. Please allow extra time for an engineering review. Superload permits are not issued at toll booths.

 

Fees

2-axle tandems (4 feet to 8 feet)

3-axle tandems (8 feet)

3-axle tandems (9 feet)

3-axle tandems (10 feet)

Gross Weight 5 or more axles

Superloads

$35.00

34,001 pounds to 44,200 pounds

42,001 pounds to 54,600 pounds

42,501 pounds to 55,250 pounds 43,501 pounds to 56,550 pounds 80,001 pounds 104,000 pounds

$150.00

$150.00

44,201 pounds to 48,000 pounds

54,601 pounds to 60,000 pounds

55,251 pounds to 60,000 pounds 56,551 pounds to 60,000 pounds 104,001 pounds to 120,000 pounds

Speed Limits for Trucks on the Illinois Tollway

Commercial vehicles weighing more than four tons are permitted to drive 65 mph on the western segments of the Jane Addams Memorial Tollway (I-90) and the Reagan Memorial Tollway (I-88), as well as other designated interstates in Illinois. In addition, motor homes, campers and trailers are allowed to drive the posted 65 mph speed limit in these areas. Existing 55 mph speed limits will continue to apply to trucks traveling on Illinois interstates in the metropolitan Chicago area, including Cook, DuPage, Kane, Will, Lake and McHenry counties.

Restrictions on Movements for Overdimension Permits

  1. Monday through Saturday - one half hour before sunrise to one half hour after sunset
  2. Sunday - one half hour before sunrise to noon
  3. Overdimension vehicles shall not be operated on the Tollway on the following holidays:
    New Year's Day Memorial Day Independence Day
    Labor Day Thanksgiving Day Christmas Day