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Welcome & General Information

Thank you for your interest in our highway and bridge construction projects. The Rules Governing Construction Bidding for CDOT Public Projects ('the Rules"), 2 CCR 601-10, amended July 2018, govern all bids. If you have questions on bid rules or the project records, please contact RB Simmons at 303-757-9416 or Tracie Benton at 303-757-9354. 

General contractors must be registered and prequalified with CDOT to participate in the bids, please see our prequalification application at http://contracts.codot.gov. Darrell Wells is available for any questions you may have regarding prequalification at 303-757-9215. 

Our design-bid-build projects are procured with electronic bids exclusively on this website. To enter a proposal, you must obtain a Digital ID with Bid Express for an authorized agent identified on your CDOT prequalification application. To sign up for electronic bidding or if you have technical difficulties on the Bid Express web site or with the Project Bids software, please contact Bid Express Customer Support, 888-352-BIDX (2439) or email them at customer.support@bidx.com.

Plans and Specifications

We now have plans and specifications for all advertised projects at http://contracts.codot.gov. You must be registered on the system to see these documents. You will find them in the View menu of the Dashboard, under the "My Bid Solicitations" menu. While you view the plans and specs you can join the main Plan Holders List for CDOT. Bid Express, this site, also allows contractors to voluntarily join a Bid Express Plan Holders List.  

Notice to E-Bidders

The software required to read the electronic bid files is available at https//bids.cloverleaf.net/. Please create a user profile and hit "enter" once you complete all of the fields.

CDOT wishes to notify all bidders that the Department will affirmatively ensure that for any contracts entered into pursuant to the advertisements we post, disadvantaged business enterprises will be afforded full and fair opportunity to submit bids in response to our invitations. No bidders will be discriminated against on the grounds of race, color, national origin in the consideration for award in accordance with the provisions of Title VI of the Civil Rights Act of 1964 (78 Stat. 525, 42 USC). 

CDOT, in accordance with the provisions of Title VI of the Civil Rights Act of 1964 (78 Stat. 252, 42 U.S.C.  ยง 2000d to 2000d-4) and the associated Regulations, hereby notifies all bidders that it will ensure that for any contract entered into pursuant to our advertisements, disadvantaged business enterprises will be afforded full and fair opportunity to submit bids in response to this invitation and will not be discriminated against on the grounds of race, color, or national origin in consideration for an award.

The work on our projects is vital to the health of Colorado's economy and the traveling public's quality of life. We look forward to working with you.

What's New?

What's New Table. What's New Table lists the last 50 activities that happened in regards to the lettings
May
Letting Proposal Activity Activity Date
20220714 Letting Made Available 05/26/2022
001 - C24591 88 Plan Sheets Added 05/25/2022
001 - C24591 4 Plan Sheets Added 05/25/2022
001 - C24591 153 Plan Sheets Added 05/25/2022
20220602 002 - C24037 21 Plan Sheets Added 05/23/2022
003 - C24957 New Proposal Added 05/19/2022
003 - C24957 1 New Attachment - C24957.pdf 05/19/2022
004 - C24672 New Proposal Added 05/19/2022
004 - C24672 1 New Attachment - C24672.pdf 05/19/2022
20220609 Letting Made Available 05/19/2022
20220602 003 - C24957 216 Plan Sheets Added 05/19/2022
004 - C24672 319 Plan Sheets Added 05/19/2022
20220609 001 - C23176 673 Plan Sheets Added 05/19/2022
002 - C21855 372 Plan Sheets Added 05/19/2022
003 - C24956 158 Plan Sheets Added 05/19/2022
004 - C24476 382 Plan Sheets Added 05/19/2022
005 - C23623 271 Plan Sheets Added 05/19/2022
006 - C25016 147 Plan Sheets Added 05/19/2022
20220602 002 - C24037 New Proposal Added 05/19/2022
002 - C24037 1 New Attachment - C24037.pdf 05/19/2022
002 - C24037 1 New Attachment - C24037.pdf 05/19/2022
002 - C24037 1 New Attachment - 24037rv1.pdf 05/19/2022
002 - C24037 228 Plan Sheets Added 05/19/2022
20220526 004 - C21400A New Proposal Added 05/18/2022
004 - C21400A 1 New Attachment - C21400A.pdf 05/18/2022
004 - C21400A 1 New Attachment - 21400A,Brv1.pdf 05/18/2022
004 - C21400A 1 New Attachment - C21400A.pdf 05/18/2022
005 - C21400B New Proposal Added 05/18/2022
005 - C21400B 1 New Attachment - C21400B.pdf 05/18/2022
005 - C21400B 1 New Attachment - C21400B.pdf 05/18/2022
005 - C21400B 1 New Attachment - 21400A,Brv1.pdf 05/18/2022
004 - C21400A 313 Plan Sheets Added 05/18/2022
004 - C21400A 21 Plan Sheets Added 05/18/2022
005 - C21400B 313 Plan Sheets Added 05/18/2022
005 - C21400B 21 Plan Sheets Added 05/18/2022
004 - C21400A Proposal Alert Updated 05/18/2022
005 - C21400B Proposal Alert Updated 05/18/2022
006 - C24184RA New Proposal Added 05/16/2022
006 - C24184RA 1 New Attachment - C24184RA.pdf 05/16/2022
006 - C24184RA 1 New Attachment - 24184RA,RB,RCrv1.doc 05/16/2022
006 - C24184RA 1 New Attachment - C24184RA.pdf 05/16/2022
006 - C24184RA 8 Plan Sheets Added 05/16/2022
007 - C24184RB New Proposal Added 05/16/2022
006 - C24184RA User deleted 8 Plan Sheets for letting 20220526 and proposal C24184RA 05/16/2022
006 - C24184RA User added 260 of 260 plan sheets to letting 20220526 and proposal C24184RA prior to encountering an upload error. Additional plan sheets may have been successfully added after the error. 05/16/2022
006 - C24184RA 259 Plan Sheets Added 05/16/2022
006 - C24184RA 8 Plan Sheets Added 05/16/2022
007 - C24184RB 1 New Attachment - C24184RB.pdf 05/16/2022
007 - C24184RB 1 New Attachment - C24184RB.pdf 05/16/2022
007 - C24184RB 1 New Attachment - 24184RA,RB,RCrv1.doc 05/16/2022
(50 Activities) More... Searching...

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Bid Express: New Roads

Bid Express: New Roads is a series of updates aimed at creating a more personalized experience that better caters to individual needs, jobs, and responsibilities.

Over the coming months, we'll be rolling out redesigned experiences to you across the entire service. Learn more.

Don't worry, if you don't love it, you can switch back to classic Bid Express for a limited time while you get used to the new look.

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