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Contact CDOT

If you have a question, you my 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.

Click here for a listing of CDOT's Headquarters and Regional Offices.

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
303-757-9011
1-800-999-4997
Office Hours:
8 a.m. to 4:30 p.m. Monday - Friday
Accessibility:
Relay Colorado: 711 or (800-659-3656)

Colorado: The Official State Web Portal