Illinois Department of Transportation, Erica Borggren, Acting Secretary
Patrick J. Quinn, Governor
Traveling PublicMapsProjectsRoad ClosuresNewsDoing BusinessLetting & BiddingCareers@IDOTGeneral Info


BLRS Business Information

Circular Letters
Contractor Bulletin
Motor Fuel Tax Funds
Policy Manual
Special Provisions
Subscription Service
Schedule of Average Annual Equipment Ownership Expense

T2 (Technology Transfer)

Documentation of Contract Quantities
QC/QA Training
Road, Bridge and Other Related Laws of Illinois Manual – 2012
Technology Transfer Center (T2)

Local Agency Programs

Economic Development Program
HSIP - Highway Safety Improvement Program (DOH)
Local Agency Federal Flexible Match Program
Illinois Transportation Enhancement Program
Local Programming Matrix
Rail Freight
Proposed Improvements for Ill Highways
Safe Routes To School Program
Scenic Byways
Truck Access Route Program (TARP)

Interactive Maps

City, County & Township Downloadable Maps
Roadway Weather Information
Future IDOT Corridors
Road Construction
Traffic Counts

IDOT Business Information

Contractor Bulletins 
Letting and Bidding
Manual Sales

     Planning and Programming

5-Year Functional Classification Maps
Illinois Highway Info System Roadway Info & Procedure Manual
Illinois Highway Info System Structure Info & Procedure Manual
Illinois Highway Info System Railroad Info & Procedure Manual
State Transportation Improvement Program/Multi-Year Highway Program

     Traffic Safety

Highway & Traffic Safety
Safety Data Mart for External Users

Division of Highways Business Information

     Bridges and Structures

Bridge Documents, Manuals, & Procedures
Bridge Information


Construction Manual, Specifications, & Forms

     Design & Environment

Bureau of Design & Environment Manuals and Memoranda
Environmental Surveys
Historic Bridge List
Specifications, Special Provisions and Highway Standards

     Land Acquisition

Land Acquisition

     Materials & Physical Research  

Approved Lists for Materials
Draft Specifications
Guides, Manuals, MISTIC Reports & Miscellaneous Information
Materials "M" Specifications
Materials & Physical Research Policy Memos
Project Procedures Guide
Physical Research
Illinois Center for Transportation (ICT)
Products Evaluation Circular


Manual on Uniform Traffic Control Devices
Oversize/Overweight Permit Policy Manual
Quality Standard for Work Zone Traffic Control Devices

     Safety Engineering

Safety Engineering
Highway Safety Improvement Program

Outside Resources

Chief Procurement Office
CMS Joint Purchase Program
Illinois Urban Manual
Illinois Public Works Mutual Aid Network
National Weather Service
(IACE) Illinois Association of County Engineers
(NACE) National Association of County Engineers
Railroad Crossing Information  

County Engineers Secured Site

County Engineers Secured Site

Didn't Find What You Need?

Check Out These Links
Getting Around Illinois
Public Partners
Doing Business

IDOT Privacy Statement | Illinois Privacy Information | Kids Privacy | Web Accessibility  | FOIA