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Highway and Bridge Construction Bidding

Information for bidding on highway and bridge construction projects for the State of Colorado

This page provides access to information on upcoming highway construction bids, bidding rules, prequalification, results of past bids and various electronic bidding resources. 


For all rules and regulations regarding CDOT's Highway and Bridge Construction projects, please click here for the Bidding Rules. All contractors must be prequalified to participate in the bids in accordance with the Bidding Rules. Please click here to register and complete a prequalification application: B2G link. If you cannot complete your registration and prequalification, including providing all required documentation, at least 17 calendar days before any bid opening for which you wish to submit a proposal, please contact our prequalification specialist, Peter Avbenake at 303-787-9583. 

CDOT does not accept paper bids for the Highway and Bridge Construction projects. All bid proposals for the construction projects must be submitted electronically via Bid Express at For help with Bid Express, please contact their customer service at 888-352-2439 or [email protected]

Project Bids is the software used to facilitate the bidding process.  This software allows bidders to receive proposal item schedules and submit bids in a secure, electronic environment. Project Bids also tracks Disadvantaged Business Enterprise (DBE) commitments, automates calculations, and applies amendments. Download Project Bids (it's free!) Installation of this software will allow you to view a project's schedule, which are found on the "Current and Future Bidding Opportunities" page.


Innovative Contracting Projects:

NHPP 0702-344 (19944) Region 3 intends to issue a Request for Proposal (RFP) for Construction Management General Contractor (CM / GC) Preconstruction Services to interested firms for the Phase 2 construction of the I-70 G US 6 Edwards Spur Road Project. I-70 G MM 0.0 to MM 0.576 US 6 MM 165.7 to MM 166.3.

IM 0253-255 (21506),, I-25 Design Build Johnstown-Ft. Collins: Short List of Contractors

Please see our projects page for additional information on all our Design-Build and CMGC projects or the innovative projects page at


CDOT Internal Use:  Instructions for Ad Letters and Revision Letters

To report the site being down please call the Colorado Office of Information Technology help desk at 303-239-HELP(4357), select 2 & 2.

Filed under:
Colorado: The Official State Web Portal