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SCAM ALERT: A current text message smishing scam claims recipients owe money associated with traffic tickets, tolls and other fines. These are not legitimate messages from the Illinois Department of Transportation. If you receive a message report it to the Federal Trade Commission and/or the FBI’s Internet Crime Complaint Center.

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Illinois Department of Transportation

Consultant Resources

The following manuals, guides, specifications, and forms are provided to help you do business with IDOT.

Letting Specific Items
Manuals and Guides
Pavement Life Cycle Cost Analysis

Materials

Approved Labs

If you are interested in becoming or working with an approved lab that performs material testing on behalf of IDOT please choose from the following: Cement, Concrete, Soils.

Pay Item/Material Conversion Report

The following is a listing of pay item unit of measure to material code unit conversion factors in pay item order.

Qualified Product Lists

Need to find your qualified product information? Check out our complete index table of QPLs where you can search, filter, and sort!

Forms

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Environmental Surveys