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Contact Us

If you have a question, you may find your answer in our Frequently Asked Questions or in our Frequently Called Phone Numbers listing.

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

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

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:

  • 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.
  • For claims regarding a state highway, please contact the State Office of Risk Management at 303-866-3848 or 1-800-268-8092.

Contact information can also be found in an alphabetical listing by Topic.

Click here to contact us by email.

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CDOT HQ Address

Colorado Department of Transportation
Headquarters Office
4201 E Arkansas Ave
Denver CO 80222
Office Hours:
8 a.m. to 5 p.m. Monday - Friday
Relay Colorado: 711 or (800-659-3656)