Contact Us

Contact CDOT

If you have a question, you may find your answer in our Frequently Asked Questions.

CDOT's main telephone number is 303-757-9011, toll free number is 800-999-4997, and address is 4201 E. Arkansas Avenue, Denver CO. 80222.

To report a pothole, problem or concern on a state highway, please click here.

  • Please contact the City/County regarding potholes or snow removal on side streets. CDOT is responsible for potholes and snow removal on Colorado State Highways only.

Please visit the following agencies for Motor Vehicle, Port of Entry, and many other transportation-related questions or issues:

Click here to contact us by email.

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CDOT Headquarters

Colorado Department of Transportation
Headquarters Office
4201 E Arkansas Ave
Denver CO 80222
Office Hours:
8 a.m. to 4:30 p.m. Monday - Friday
Relay Colorado: 711 or (800-659-3656)

Colorado: The Official State Web Portal