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
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
20190509 002 - C22388R Apparent Bids Updated; Letting: 20190509, Contid: C22388R, Bidders: 05/09/2019
20190530 002 - C22576 New Proposal Added 05/09/2019
002 - C22576 1 New Attachment - C22576.pdf 05/09/2019
002 - C22576 403 Plan Sheets Added 05/09/2019
001 - C22931 New Proposal Added 05/09/2019
001 - C22931 1 New Attachment - C22931.pdf 05/09/2019
001 - C22931 146 Plan Sheets Added 05/09/2019
20190509 001 - C22986 Apparent Bids Updated; Letting: 20190509, Contid: C22986, Bidders: 607A 05/09/2019
20190523 002 - C23012 New Proposal Added 05/09/2019
002 - C23012 1 New Attachment - C23012.pdf 05/09/2019
002 - C23012 174 Plan Sheets Added 05/09/2019
20190516 005 - C20923 New Proposal Added 05/03/2019
005 - C20923 1 New Attachment - C20923.pdf 05/03/2019
005 - C20923 1 New Attachment - 20923rv1.docx 05/03/2019
005 - C20923 306 Plan Sheets Added 05/03/2019
005 - C20923 20 Plan Sheets Added 05/03/2019
005 - C20923 Proposal Alert Updated 05/03/2019
20190502 003 - C21566 Apparent Bids Updated; Letting: 20190502, Contid: C21566, Bidders: 110E, 625A, 1057A 05/02/2019
006 - C21865 Apparent Bids Updated; Letting: 20190502, Contid: C21865, Bidders: 05/02/2019
006 - C21865 Apparent Bids Updated; Letting: 20190502, Contid: C21865, Bidders: 720A, 697A 05/02/2019
007 - C21869 Apparent Bids Updated; Letting: 20190502, Contid: C21869, Bidders: 05/02/2019
007 - C21869 Apparent Bids Updated; Letting: 20190502, Contid: C21869, Bidders: 1052A 05/02/2019
20190516 004 - C22318 Amendment Loaded 05/02/2019
004 - C22318 1 New Attachment - 22318rv1.docx 05/02/2019
004 - C22318 11 Plan Sheets Added 05/02/2019
20190502 005 - C22411 Apparent Bids Updated; Letting: 20190502, Contid: C22411, Bidders: 1713A, 672A 05/02/2019
004 - C22901 Apparent Bids Updated; Letting: 20190502, Contid: C22901, Bidders: 1595, 360A, 780A 05/02/2019
20190523 001 - C22914 Attachment Deleted - C22914.pdf 05/02/2019
001 - C22914 1 New Attachment - C22914.pdf 05/02/2019
001 - C22914 1 New Attachment - 22914rv1.doc 05/02/2019
(36 Activities)
What's New Table. What's New Table lists the last 50 activities that happened in regards to the lettings
April
Letting Proposal Activity Activity Date
20190509 002 - C22388R 8 Plan Sheets Added 04/30/2019
002 - C22388R New Proposal Added 04/29/2019
002 - C22388R 1 New Attachment - C22388R.pdf 04/29/2019
002 - C22388R 1 New Attachment - 22388Rrv1.doc 04/29/2019
002 - C22388R Proposal Alert Updated 04/29/2019
002 - C22388R 365 Plan Sheets Added 04/29/2019
20190523 Letting Made Available 04/25/2019
20190516 Letting Made Available 04/25/2019
20190509 Letting Made Available 04/25/2019
20190516 001 - C21519 1 New Attachment - C21519.pdf 04/25/2019
001 - C21519 358 Plan Sheets Added 04/25/2019
20190425 001 - C21893 Apparent Bids Updated; Letting: 20190425, Contid: C21893, Bidders: 1437A, 011A, 1415A 04/25/2019
20190516 004 - C22318 New Proposal Added 04/25/2019
(13 Activities) More... Searching...