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
20190613 New Letting Created 05/23/2019
003 - C20680 New Proposal Added 05/23/2019
003 - C20680 1 New Attachment - C20680.pdf 05/23/2019
003 - C20680 324 Plan Sheets Added 05/23/2019
004 - C20693 New Proposal Added 05/23/2019
004 - C20693 1 New Attachment - C20693.pdf 05/23/2019
004 - C20693 220 Plan Sheets Added 05/23/2019
002 - C21785 New Proposal Added 05/23/2019
002 - C21785 1 New Attachment - C21785.pdf 05/23/2019
002 - C21785 345 Plan Sheets Added 05/23/2019
007 - C21868 New Proposal Added 05/23/2019
007 - C21868 1 New Attachment - C21868.pdf 05/23/2019
007 - C21868 132 Plan Sheets Added 05/23/2019
005 - C22528 New Proposal Added 05/23/2019
005 - C22528 1 New Attachment - C22528.pdf 05/23/2019
005 - C22528 210 Plan Sheets Added 05/23/2019
001 - C22553 New Proposal Added 05/23/2019
001 - C22553 1 New Attachment - C22553.pdf 05/23/2019
001 - C22553 497 Plan Sheets Added 05/23/2019
006 - C22799 New Proposal Added 05/23/2019
006 - C22799 1 New Attachment - C22799.pdf 05/23/2019
006 - C22799 195 Plan Sheets Added 05/23/2019
20190523 001 - C22914 Apparent Bids Updated; Letting: 20190523, Contid: C22914, Bidders: 625A 05/23/2019
20190606 New Letting Created 05/22/2019
001 - C22931 New Proposal Added 05/22/2019
001 - C22931 1 New Attachment - C22931.pdf 05/22/2019
001 - C22931 1 New Attachment - 22931rv1.doc 05/22/2019
001 - C22931 Proposal Alert Updated 05/22/2019
001 - C22931 146 Plan Sheets Added 05/22/2019
001 - C22931 4 Plan Sheets Added 05/22/2019
20190530 001 - C22931 Proposal Withdrawn 05/22/2019
002 - C22576 Amendment Loaded 05/21/2019
002 - C22576 1 New Attachment - 22576rv1.pdf 05/21/2019
002 - C22576 21 Plan Sheets Added 05/21/2019
003 - C23012 11 Plan Sheets Added 05/21/2019
003 - C23012 New Proposal Added 05/20/2019
003 - C23012 1 New Attachment - C23012.pdf 05/20/2019
003 - C23012 1 New Attachment - 23012rv1.doc 05/20/2019
003 - C23012 174 Plan Sheets Added 05/20/2019
003 - C23012 Proposal Alert Updated 05/20/2019
20190523 002 - C23012 Proposal Withdrawn 05/20/2019
20190516 005 - C20923 Apparent Bids Updated; Letting: 20190516, Contid: C20923, Bidders: 05/16/2019
001 - C21519 Apparent Bids Updated; Letting: 20190516, Contid: C21519, Bidders: 178A, 1476A, 720A 05/16/2019
004 - C22318 Apparent Bids Updated; Letting: 20190516, Contid: C22318, Bidders: 1713A, S3082, 672A, 1342A 05/16/2019
002 - C22630 Apparent Bids Updated; Letting: 20190516, Contid: C22630, Bidders: 884A, 1415A, 588A 05/16/2019
003 - C22768 Apparent Bids Updated; Letting: 20190516, Contid: C22768, Bidders: 1713A, 084A, 944A 05/16/2019
20190530 New Letting Created 05/09/2019
(47 Activities) More... Searching...