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.

Welcome to IDOT's new website design! The address for some web pages has changed, so be sure to update any saved favorites as needed.

Construction Services

Feel confident tackling your responsibilities with our helpful tips on compliance, project management, and standard specs. This resource hub is packed with essential info to keep you on track with regulations and ensure your projects run smoothly from start to finish.

The actual construction of projects identified in IDOT's Multi-Modal Multi-Year Transportation Improvement Program is outside of IDOT's scope of work. IDOT utilizes outside contractors to fulfill this role. The department is committed to maintain the state’s highway system through a successful business venture with the contractor community.

Administration of the Project

Bulletin Board Requirements

Construction Memorandums

Contract Execution

Contractor Resources

DBE Compliance

Highway & District Specific Standards

Standard Specifications

Work Zone Safety Materials

Application portal

Access to a variety of software programs, applications, tools, resources and information.

Notice of Contract Awards Transportation Bulletin