CDOT Online Transportation Information System

This is the access point to information frequently used for transportation planning and project development. Information is provided on current and projected traffic volumes, state highway attributes, summary roadway statistics and geographic data.

What's new?

2023 roadway images are now available in Windshield. (1/11/2024)
Roadway Reports for 2022 are available under Reports -> Roadway Reports. IRIS 2022 is also now available by searching for "IRIS" and looking under Documents and Downloadable Data. (8/14/2023)
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