About CDOT

Road Conditions Hotline (303) 639-1111

The Colorado Department of Transportation is responsible for a 9,122 mile highway system, including 3,698 bridges. Each year, this system handles over 23 billion vehicle miles of travel. Although the Interstate system accounts for only about 10 percent (954 miles) of the total mileage on the state system, 40 percent of all travel takes place on our Interstate highways. The highway construction program managed by CDOT currently includes over 150 projects statewide, all of which are being built by private contractors. This partnership between government (CDOT) and business works well as we improve and expand our transportation system.

CDOT maintenance forces take care of the highway system, plowing snow and repairing pavement. Last winter, these men and women plowed 5,900,000 miles of highway, equivalent to more than 10 round trips to the moon. They also repaired road damage and potholes, using more than 330,000 tons of asphalt. But CDOT is more than roads and bridges. The Division of Aeronautics supports aviation interests statewide, including grants to help improve local airports. CDOT’s Transit Unit provides assistance to numerous transit systems in the state. And the Office of Transportation Safety helps local law enforcement agencies with special funds to apprehend drunk drivers and increase use of safety belts.

It’s all part of CDOT’s mission to provide the best possible multi-modal transportation system for Colorado that most effectively moves people, goods and information.