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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.

Specific Scope of Services

Compliance materials are organized for ease of use by contractors and consultants. Review materials related to specific scope of service and project type below.

Consultant Resources

Technical Manuals

Forms

Bridge Information

  • Bridge Information site is a tool to offer bridge inspection and inventory information to the public.

Bridge Manual Design Guides and Examples

Design Guides Reference Revised

Design Guides and Spreadsheets

The Geotechnical Design Guides and Spreadsheets have been developed by the Bureau of Bridges and Structures' Foundations and Geotechnical Unit in an effort to document the calculations and proper use of the Geotechnical Spreadsheets.

Department Wide Geotechnical Engineers Organizational Chart and Staff Phone Numbers

Technical Manuals and Policy Memorandums

Stay Connected

  • You can subscribe and receive updates related to the Geotechnical Subscription Service through IDOT's Subscription Services page. Directions for unsubscribing are included with each email notification.

Planning

Type Size and Location Drawings (TSL)

Technical Manuals

Bridge Manual Design Guides & Detail Examples

Repairs

Technical Manuals

Bridge Information

  • The Bridge Information site is a tool to offer bridge inspection and inventory information to the public.

Contractor Resources