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.

To report a pothole, problem or concern on a state highway, please use the form below.

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:

Driver's Licensing and Vehicle Registration, Colorado Department of Revenue, Motor Vehicle Division.
CDL Licensing, Colorado Department of Revenue, Motor Vehicle Division.
DOT Numbers and answers to intra-state travel (within Colorado only), Colorado State Patrol (CSP) Motor Carrier Unit
DOT Numbers and answers to interstate travel (state to state travel), Federal Motor Carrier Safety Administration (FMCSA).
Toll Road information/toll violations, (E-470, Northwest Parkway, I-25 Express Lanes).
Denver Bus/Light Rail/FasTracks information, Regional Transportation District (RTD).

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.

If you have not found what you are looking for, please complete the form below. Your thoughts are important to us.

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