ILLINOIS DEPARTMENT OF TRANSPORTATION
Legal Weight &/or Legal Dimension

Contact us

• Contact Information

Office Closings

• Office Closings

Maps

• Average Annual Daily Traffic
• Designated Truck Routes
• Metro East St. Louis Travel Information
• Road Construction
• Roadway Weather Information System
• Travelmidwest.com – Lake Michigan Interstate Gateway Alliance
• Tutorial – Description of maps on the www.gettingaroundillinois.com Web site.
• Winter Road Conditions (Map updates only available November - April)

Legal Weight

Posted Ton Structures on State Roadways

• Marked Routes
• Unmarked Routes

OPER 753

• .pdf file

Weigh Station Locations

Legal Length

OPER 753

• .pdf file

Legal Length Forms

State Designated Truck Routes

Local Designated Truck Routes

Road Closures

• Road Closures

Frequently Asked Questions

• Frequently Asked Questions

Illinois Vehicle Code (625 ILCS 5/)

• Chapter 15 - Size, Weight, Load And Permits
• Article I - Size, Weight And Load
• Article II - Vehicles Exceeding Weight Limits

Other IDOT Contacts

• Hazardous Materials 217-785-1181
• Safety Inspections 217-785-1181
• Traffic Safety 217-782-4518
• Rest Stops 217-782-2984

Other State Agencies

• Department of Revenue
  • 217-785-1397
    • Motor Fuel Stickers (IFTA Stickers)
    • All Tax information
• Illinois Commerce Commission
  • 217-782-4654 x1
  • ICC #’s
• Illinois State Police
  • 217-782-6287 Enforcement & Fines
  • 217-782-6527 ISP Escorts
  • ISP Districts
• Secretary of State
  • 217-785-1800 x0
  • 72 hour Trip Permits
  • All drivers license & vehicle plate related questions
• US DOT a/k/a Federal DOT Office
  • 217-492-4608
  • DOT #’s
  • All CDL driver requirements (physicals, log books, etc..)