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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. 

Pavement Resources

For all rules and regulations regarding CDOT's Highway and Bridge Construction projects, see the Bidding Rules.

CDOT now offers electronic plans and specifications to registered contractors at B2G. Please be sure to do an account lookup if you are new to the system as many vendors have been entered by CDOT into the system. This will allow you to reset the password if the proper contacts were entered. If you need to add a user, please contact CDOT at 303-757-9297. A plan holders list is also available on this site for those wishing to join.

All contractors must be prequalified to participate in the bids in accordance with the Bidding Rules. Please register and complete a prequalification application on B2G. 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, Darrell Wells, at 303-787-9215. 

CDOT does not accept paper bids for Highway and Bridge Construction projects. All bid proposals for the construction projects must be submitted electronically via Bid Express. For help with Bid Express, please contact a customer service representative at 1-888-352-2439, or at [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. Installing this software will allow you to view a project's schedule, found on the Current and Future Bidding Opportunities page.

Project Notices

Constructability Reviews

IM 052A-018 & Revision1 R2 I-25 Pueblo Corridor improvements.  

IM 025A-040 R2 I-25 at Trinidad project.

Innovative Contracting Projects


IM 0253-255 (21506) I-25 Design Build Johnstown to Fort Collins: Short List of Contractors, Price Proposal Results Notice, Best Value Results and Scores.


NHPP 0252-450 (21102) CDOT has selected a contractor for Construction Manager General Contractor (CM/GC) Pre-construction Services for Region 1's I-25 South Gap: Monument to Castle Rock.  The RFP solicitation documents for this project can be found under the following web link:  RFP, Pre-Proposal Meeting ScheduleAddendum 1, Addendum 2 (V2), and Pavement Material Determination.

NHPP 0702-344 (19944) CDOT has selected a contractor for Construction Manager General Contractor (CM/GC) Pre-construction Services for Region 3's Phase 2 of the I-70 G US 6 Edwards Spur Road Project located on I-70 G from MM 0.0 to MM 0.576 and on US 6 from MM 165.7 to MM 166.3.  The Request for Proposal documents for this project are available under the following web links: Request for Proposal, Addendum 1, Addendum 2

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

State Best Value Projects

STM R200-240 (21881) was the only highway construction project to use the State Best Value Bidding in 2017.

*Please contact the Plans Room at 303-757-9313 for project schedules, specifications and design drawings.

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

CDOT Internal Use:

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Contact Us

Construction Contracts
Marci Gray, Manager
[email protected]

RB Simmons, Contract Administrator
[email protected]

Construction Prequalification
Darrell WellsContract Administrator
[email protected]

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