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Illinois Oversize Overweight Permits Phone Number: (270)908-9656
Illinois Oversize Overweight Permits Rules and Regulations
Illinois Oversize/Overweight permits Validity: Oversize permits issued in Illinois remain valid for a total of five consecutive days. Drivers are required to secure the permit before entering the state.
Illinois Traveling Time with Oversize Load: On expressways in Cook County, permitted limits are 120,000 pounds gross weight, 12 feet wide, and/or 13 feet 6 inches high. Additional conditions apply per the General Provisions Sheet (General Provisions B). In Cook, DuPage, Lake, Kane, Madison, McHenry, Monroe, St. Clair, and Will counties, loads between 14 feet 6 inches and 16 feet wide may travel Monday through Friday between 9:00 AM and 3:00 PM. Wider loads face further limitations. No oversize travel is allowed the afternoon before major holidays or long holiday weekends.
Toll Road Regulations: The maximum permitted width on most toll roads is 10 feet, with exceptions allowing 12 feet on specific segments near I-80 (Indiana border) and US-51 (Wisconsin border). For vehicles weighing between 80,001 and 104,000 pounds, the toll fee is approximately $35. Loads between 104,001 and 120,000 pounds incur a fee of around $150. The maximum gross weight permissible is 120,000 pounds. Loads longer than 100 feet require prior approval and a special permit. The height limit is 14 feet 6 inches, with an additional $15 charge for heights exceeding 13 feet 6 inches.
Illinois Holiday Restriction: Unless specifically stated otherwise on the Illinois oversize load permit, oversize and overweight vehicles are not allowed to operate during certain holidays. This restriction applies on Sundays and on New Year’s Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, and Christmas Day. The restriction begins at noon on the day preceding the holiday if the holiday is observed
Illinois Road/Bridge Restriction with Oversize Load:
Illinois adheres to the Federal Bridge Formula and enforces specific bridge and road restrictions, including but not limited to:
- Avoiding active construction zones,
- Obeying warning signals when passing work zones,
- Yielding to emergency vehicles and law enforcement, and
Complying with posted bridge crossing regulations
Bridge Crossing Guidelines:
Illinois follows the Federal Bridge Formula and enforces specific bridge weight limitations. Road-related restrictions may include, but are not limited to:
- Prohibited passage through active construction zones
- Disregarding warning signs or signals in work areas
- Failing to yield to law enforcement, emergency responders, or construction personnel
Speeding Penalties in Work Zones:
- First offense: Fine of $375
- Second offense: Fine of $1,000
Hitting a Road Worker:
- Fine: Up to $10,000
- Imprisonment: Up to 14 years
Oversize load Seasonal Restriction in Illinois:
Although Illinois does not have official frost laws like some other states or Canadian provinces, seasonal restrictions may still apply. These are sometimes mentioned on oversize/overweight permits based on the type or nature of the load.
In hazardous weather, road, or traffic conditions, or when visibility drops below 500 feet, the operation of oversize vehicles may be restricted for safety reasons
Illinois Oversize Tire Regulations:
- Tires must be in good operational condition and properly inflated.
- The minimum tread depth must be 2/32 inch, and 4/32 inch for steer tires (front axle).
- No material other than rubber or tire chains is allowed to protrude from the tires unless explicitly permitted or required for safety.
Chain Requirements: Tire chains may be used when necessary for safety due to snow, ice, or any other condition that causes road surfaces to become slippery
Illinois Legal Dimensions/Size Limit
Illinois Legal Length:
- Semi-trailers up to 53 feet are authorized on designated highway routes.
- For non-designated highways, total length is restricted to 65 feet.
- Unless permitted, the distance from the kingpin to the center of the rear axle may not exceed 45 feet 6 inches.
- Front overhang must not surpass 3 feet, and rear overhang is limited to 4 feet. If rear overhang exceeds this, the entire length must remain within legal boundaries.
Illinois Wide Load Limit
- On designated highways, the maximum allowable width is 8 feet 6 inches.
- On non-designated routes, maximum width is limited to 8 feet
Illinois Legal Height: The highest legal vehicle height is 13 feet 6 inches
Illinois Legal Weight Limit: Maximum gross vehicle weight is 80,000 pounds
- Single Axle: Single axles are allowed to bear a weight of up to 20,000 pounds.
- Tandem Axles: Tandem axle configurations are permitted to carry a combined weight of up to 34,000 pounds.
- Tridem Axles: Tridem axle configurations may carry as much as 42,500 pounds.
Maximum Load Dimensions with permits in Illinois
Length: Permitted up to 145 feet.
Width: Load height up to 14 feet 6 inches can be permitted
Illinois Wide Load Requirements
- Permit Required: A permit is necessary for any load wider than 8 feet 6 inches
- Flags: Red 18-inch square flags on all sides and extremities
- Banners: “Oversize Load” signs required
- Signs: 7 feet long by 18 inches high, yellow background, 10-inch black letters
- Lighting: Amber rotating or flashing lights visible from 500 feet
- Travel Times: Loads up to 14 feet 6 inches wide: Allowed 30 minutes before sunrise to 30 minutes after sunset, all days.
Illinois Wide Load Restrictions
- Holiday Restrictions: No travel on Sundays or major holidays starting at noon
- Pilot Car Requirements: One Escort needed When width exceeds 14 feet 6 inches, Three Escorts required When width exceeds 16 feet and Police Escort needed When width exceeds 18 feet, bridge restrictions apply, or as determined by the Department
- Travel must be suspended in unsafe weather, traffic, or road conditions
Height: Permitted up to 15 feet, depending on available overhead clearance (a 3-inch clearance is required)
Notes:
- Interstate travel is not allowed for vehicles taller than 15 feet 9 inches.
- Heights of 16 feet or more require a detailed route survey before approval
Weight:
Weight Limits Under Routine Permits:
- Single axle: Weight allowances can reach up to 24,000 pounds.
- Tandem axles: Thet are limited to 48,000 pounds.
- Tridem axles: may carry up to 60,000 pounds, provided no single axle exceeds 21,000 pounds.
- Quad axles: They are allowed to carry 60,000 pounds under standard permits and up to 100,000 pounds with a superload permit.
Superload: A load is classified as a superload and requires special permits if it meets any of the following:
- Five-axle configurations may exceed 100,000 pounds in gross weight or carry more than 44,000 pounds on any tandem axle group.
- Six or more axles may carry more than 120,000 pounds total or over 48,000 pounds on any axle grouping.
- Differences between pusher or lift axles in the same group should not exceed 2,000 pounds.
Loads exceeding 16 feet in width or 17 feet in height require engineering evaluation by field or district staff. For loads taller than 17 feet, coordination with all overhead utility providers is mandatory, and relevant documentation must be submitted.
Exemptions: Length restrictions are waived, and no oversize permit is needed for beams, poles, pipes, culverts, or structural materials up to 80 feet long (total length not over 100 feet), moved on weekdays during daylight. Farm tractors and similar equipment may also be transported without a permit during daylight hours, including weekends, if only over-width limits are surpassed. However, permits are required if the load exceeds 13 feet 6 inches in height or exceeds weight limits.
What Are The Requirements For a Pilot Car In Illinois
By Length:
- Loads over 110 feet require one escort.
- Loads exceeding 145 feet need three escorts.
- Loads that exceed 200 feet in length require a State Police escort.
By Width:
- Loads over 14 feet 6 inches in width must be accompanied by one escort.
• Three escort vehicles are necessary for loads exceeding 16 feet in width. - Loads wider than 18 feet require State Police escorts.
By Height:
- Loads over 14 feet 6 inches require one escort with a high pole.
- Loads taller than 16 feet require a route survey to obtain a permit and one escort.
- Loads exceeding 18 feet in height require two escorts plus State Police involvement.
Additional Note: If a load exceeds two of the above dimensions (length, width, or height), two escorts are mandatory
Signage, Flashing Amber lights and flags Requirements and Illinois Additional Information
Flags are required on the ends of all large vehicles, loads, and any extended parts. Loads that are 10 feet wide, 14 feet 6 inches tall, or 75 feet long must display “Oversize Load” signs. All oversize or overweight permitted loads must have amber warning lights that are visible, either flashing, rotating, or steady, mounted on the tractor. While there is no specified size for these lights, they must be visible from both sides and the front, and bright enough to be seen clearly during daylight from at least 500 feet away. If the visibility of the lights is blocked from behind, loads exceeding 80 feet in length, or combinations longer than 100 feet, require an additional amber light mounted near the rear of the load, typically within 10 feet from the back, placed at the highest practical position
Illinois Oversize/Overweight Permit fee:
Starting Fees: Single-trip permits begin around $20, while annual permits can cost up to $1,000, depending on the type and size of the load.
Fee Factors: Charges are based on vehicle/load size, total weight, and distance traveled on state-maintained highways.
Processing Charges: An additional application or processing fee may apply.
Mileage-Based Fee
- Loads up to 70′ long, 10′ wide, 14′6″ high: $12 (up to 90 miles) to $21 (over 270 miles)
- Loads up to 85′ long, 12′ wide, 14′6″ high: $15 (up to 90 miles) to $30 (over 270 miles)
- Loads up to 100′ long, 14′ wide, 15′ high: $25 (up to 90 miles) to $40 (over 270 miles)
- Loads up to 120′ long, 18′ wide, 16′ high: $30 (up to 90 miles) to $60 (over 270 miles)
Illinois Single Trip Oversize/Overweight Permits
- Validity: Standard single-trip permits are valid for 5 days and cover one-way transport between two points.
- Round Trip Option: A separate round-trip permit (valid for 10 days) is required to return the vehicle or equipment to the original location.
- Permit Coverage: Issued only for non-divisible loads that exceed legal limits.
Illinois Annual Oversize/Overweight Permits
Duration: Valid for 365 days for continuous use of a specific vehicle and load between two designated points.
Load Limits:
- Width: up to 12′
- Height: up to 14′6″
- Length: up to 115′
Fee: Basic fee is $1,000
Tolerances:
- 2,000 lbs over on single axles
- 3,000 lbs over on tandem axles
- 5,000 lbs over on gross weight
Illinois IRP Trip Permits (Temporary Registration)
Eligibility:
- Vehicles operating in two or more jurisdictions
- Gross weight of 26,001 lbs or more, or vehicles with two axles or more
Validity: 3-day temporary permit
Permit Limit: Maximum of 3 trip permits allowed per vehicle within 12 months
Illinois IFTA Fuel Permits
- Validity: 96-hour temporary permit
- Purpose: For out-of-state carriers not holding an IFTA license
- Additional Charges: Permit handling and processing fees may apply
Illinois Specialty Permits
Manufactured/Mobile Homes
- Maximum Dimensions:
Width: up to 16′
Length: up to 115′ (including the towing unit)
Applies to: Mobile homes, modular sections, and oversize storage buildings
Harvest Season Permits
Cost: Issued free of charge between September 1 and December 31
Weight Allowances:
Up to 10% above axle and gross legal weight
Up to 10% above registered gross weightConditions: Not valid for travel on interstates; must obtain trip authorization via ITAP every 14 calendar days for state routes.
Amber Light Permits
- Use: Required for escort vehicles accompanying oversize loads
- Equipment: Must be fitted with roof-mounted amber warning lights
Loading Zone Permits
- Use: Allows non-commercial delivery vehicles to use commercial loading zones
- Eligibility: Typically issued for short-term loading or unloading purposes
Oversize/Overweight Load Fines in Illinois
Fines for operating oversize or overweight vehicles in Illinois are based on how much the vehicle exceeds the legal weight limits.
- A fine of $73 is charged for the first 2,000 pounds over the legal limit.
- For every additional 500-pound increment beyond that, the fines increase and can reach up to $3,975 for a total overage of 24,000 pounds.
- Any weight exceeding 24,000 pounds is fined at a rate of $75 per 500 pounds.
Important: If a driver fails to follow the instructions of authorized enforcement officials such as refusing to stop or attempting to alter the load before weighing a penalty ranging from $500 to $2,000 may be issued.
FAQ’s
You can contact at (270)908-9656 Express Heavy Haul for Illinois Oversize Permits.
Single-trip oversize permits start at $15, depending on distance and dimensions.
Annual permits can cost up to $1,000, especially for larger or superload moves
A paper permit is required when a police escort is necessary. For all other cases, the permit must be downloaded in a readable format, such as a PDF. There are no specific requirements regarding screen size or the
type of device used.
No, unless the load is overweight only and all other dimensions are legal. Otherwise, travel is limited to:
½ hour before sunrise to ½ hour after sunset, Monday–Friday
½ hour before sunrise to noon on Saturday
No travel on Sundays or major holidays
A standard flatbed can carry up to 80,000 lbs gross. Anything above this requires an overweight permit
Oversize loads must travel 5 mph below the posted speed limit, unless otherwise stated in the permit
Legal limits before a permit is required:
– Width: 8'6"
– Height: 13'6"
– Length: 65'
– Weight: 80,000 lbs
Loads exceeding these must follow time-of-day and holiday restrictions, and may require escorts or special
routing
Without a permit:
80,000 lbs gross
20,000 lbs per single axle
34,000 lbs per tandem axle
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