Illinois Department of Transportation, Erica Borggren, Acting Secretary
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Patrick J. Quinn, Governor
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IDOT MANUALS

Illinois Highway Information System
Roadway Information & Procedure Manual Illinois Highway Information System Roadway Information & Procedure Manual (7/1/01)

Standard Specifications for Road & Bridge Construction Standard Specifications for Road & Bridge Construction

Bureau of Bridges and Structures Manuals Bureau of Bridges and Structures Manuals

Bureau of Design and Environment Manuals Bureau of Design and Environment Manuals

Construction Manual Notice Construction Manual Notice

Geotechnical Manual Geotechnical Manual - policies for road and bridge construction.

Quality Standard for Work Zone Traffic Control Devices Quality Standard for Work Zone Traffic Control Devices

IDOT Highway Standards Illinois Department of Transportation Highway Standards

Oversize/Overweight Permit Movements Oversize and Overweight Permit Movements on State Highways

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