Colorado Department of Transportation

To help you prepare for your travels, CDOT offers several tools.  For current road and weather conditions you can call 511 or visit www.cotrip.org.  You can also sign up for free e-mail and text message alerts.  Once you create an account, you can subscribe to the corridors and topics that apply to you and your travels. You can also follow us on Twitter @ColoradoDOT.

Attention Vendors/Contractors and Consultants: New way of doing business with CDOT

The Colorado Department of Transportation will start using a vendor facing portal on December 15th 2014.

Benefits to our vendor community will include;

  • enhanced ease of use to register and/or pre-qualify your organization to do business with CDOT,
  • eliminate reproduction and shipping cost, by enabling direct electronic submittal of proposals for goods or services to CDOT,
  • provides reporting visibility to track your POs and payments.

All vendors will be required to be registered with CDOT and most bidding/solicitation processes will be performed through the vendor facing portal, with the exception of highway construction bidding. Please check back regularly for updates and additional instructions on the Business Center website or click here for an overview of the vendor portal.


To do business with CDOT … click here for the initial registration and creating your CDOT Supplier Self-Service Portal account.

Once registered with CDOT … click here for the new CDOT Supplier Self-Service Portal to view and respond to bids/solicitiations.

Colorado: The Official State Web Portal