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
March
Letting Proposal Activity Activity Date
20200416 New Letting Created 03/26/2020
001 - C21138 New Proposal Added 03/26/2020
001 - C21138 1 New Attachment - C21138.pdf 03/26/2020
002 - C21929 New Proposal Added 03/26/2020
002 - C21929 1 New Attachment - C21929.pdf 03/26/2020
001 - C21138 510 Plan Sheets Added 03/26/2020
002 - C21929 353 Plan Sheets Added 03/26/2020
20200326 002 - C22079 Apparent Bids Updated; Letting: 20200326, Contid: C22079, Bidders: 03/26/2020
003 - C21471 Apparent Bids Updated; Letting: 20200326, Contid: C21471, Bidders: 03/26/2020
004 - C23098 Apparent Bids Updated; Letting: 20200326, Contid: C23098, Bidders: 03/26/2020
006 - C23020 Apparent Bids Updated; Letting: 20200326, Contid: C23020, Bidders: 954A, 276A, 503F, 780A, 905A 03/26/2020
002 - C22079 Apparent Bids Updated; Letting: 20200326, Contid: C22079, Bidders: 160A, 232A, 169A, 1275A, 870A, 011A, 1174A, 1437A 03/26/2020
20200402 014 - C22557 New Proposal Added 03/23/2020
014 - C22557 1 New Attachment - C22557.pdf 03/23/2020
014 - C22557 1 New Attachment - 22557rv1.pdf 03/23/2020
014 - C22557 225 Plan Sheets Added 03/23/2020
014 - C22557 9 Plan Sheets Added 03/23/2020
010 - C21432 1 New Attachment - 21432rv1.docx 03/23/2020
010 - C21432 12 Plan Sheets Added 03/23/2020
002 - C23331 1 New Attachment - 23331rv1.pdf 03/23/2020
002 - C23331 1 Plan Sheet Added 03/23/2020
20200409 006 - C23432R 1 New Attachment - 23432Rrv1.doc 03/23/2020
006 - C23432R 3 Plan Sheets Added 03/23/2020
20200326 005 - C22557 Proposal Withdrawn 03/19/2020
20200319 001 - C21432 Proposal Withdrawn 03/18/2020
002 - C22557 Proposal Withdrawn 03/18/2020
003 - C23020 Proposal Withdrawn 03/18/2020
004 - C21936 Proposal Withdrawn 03/18/2020
005 - C23414 Proposal Withdrawn 03/18/2020
006 - C23413 Proposal Withdrawn 03/18/2020
20200326 005 - C22557 New Proposal Added 03/18/2020
005 - C22557 1 New Attachment - C22557.pdf 03/18/2020
005 - C22557 225 Plan Sheets Added 03/18/2020
006 - C23020 New Proposal Added 03/18/2020
006 - C23020 1 New Attachment - C23020.pdf 03/18/2020
006 - C23020 1 New Attachment - 23020rv1.pdf 03/18/2020
006 - C23020 461 Plan Sheets Added 03/18/2020
006 - C23020 16 Plan Sheets Added 03/18/2020
006 - C23020 16 Plan Sheets Added 03/18/2020
20200402 004 - C22573A Proposal Withdrawn 03/18/2020
005 - C22573B Proposal Withdrawn 03/18/2020
006 - C22573C Proposal Withdrawn 03/18/2020
007 - C22023 Proposal Withdrawn 03/18/2020
008 - C23432R Proposal Withdrawn 03/18/2020
009 - C21257 Proposal Withdrawn 03/18/2020
010 - C21432 New Proposal Added 03/18/2020
010 - C21432 1 New Attachment - C21432.pdf 03/18/2020
010 - C21432 1024 Plan Sheets Added 03/18/2020
011 - C21936 New Proposal Added 03/18/2020
011 - C21936 1 New Attachment - C21936.pdf 03/18/2020
(50 Activities) More... Searching...