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
April
Letting Proposal Activity Activity Date
20190418 001 - C22289 Apparent Bids Updated; Letting: 20190418, Contid: C22289, Bidders: 1567A, 780A, 870A 04/18/2019
002 - C22363 Apparent Bids Updated; Letting: 20190418, Contid: C22363, Bidders: 1231A, 697A, 276A, 232A 04/18/2019
003 - C22926 Apparent Bids Updated; Letting: 20190418, Contid: C22926, Bidders: 1587, 607A, 1701 04/18/2019
004 - C22936 Apparent Bids Updated; Letting: 20190418, Contid: C22936, Bidders: 607A, 1701 04/18/2019
20190425 001 - C21893 38 Plan Sheets Added 04/16/2019
001 - C21893 Amendment Loaded 04/16/2019
001 - C21893 1 New Attachment - 21893rv2.pdf 04/16/2019
001 - C21893 25 Plan Sheets Added 04/16/2019
001 - C21893 Amendment Loaded 04/15/2019
001 - C21893 1 New Attachment - 21893rv1.pdf 04/15/2019
20190502 Letting Made Available 04/11/2019
001 - C20923 306 Plan Sheets Added 04/10/2019
003 - C21566 221 Plan Sheets Added 04/10/2019
006 - C21865 269 Plan Sheets Added 04/10/2019
007 - C21869 133 Plan Sheets Added 04/10/2019
002 - C22388R 365 Plan Sheets Added 04/10/2019
005 - C22411 235 Plan Sheets Added 04/10/2019
004 - C22901 256 Plan Sheets Added 04/10/2019
20190404 001 - C20839 Apparent Bids Updated; Letting: 20190404, Contid: C20839, Bidders: 884A 04/04/2019
002 - C21748 Apparent Bids Updated; Letting: 20190404, Contid: C21748, Bidders: 672A 04/04/2019
20190418 001 - C22289 Amendment Loaded 04/04/2019
001 - C22289 1 New Attachment - 22289rv1.docx 04/04/2019
001 - C22289 13 Plan Sheets Added 04/04/2019
002 - C22363 1 New Attachment - 22363rv1.pdf 04/04/2019
002 - C22363 2 Plan Sheets Added 04/04/2019
20190404 003 - C22569 Apparent Bids Updated; Letting: 20190404, Contid: C22569, Bidders: 04/04/2019
004 - C22920 Apparent Bids Updated; Letting: 20190404, Contid: C22920, Bidders: 04/04/2019
004 - C22920 Apparent Bids Updated; Letting: 20190404, Contid: C22920, Bidders: 162A, 607A, 1587 04/04/2019
(28 Activities)
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
20190418 Letting Made Available 03/28/2019
20190328 001 - C21256 Apparent Bids Updated; Letting: 20190328, Contid: C21256, Bidders: 1174A, 870A, 695A 03/28/2019
20190404 002 - C21748 4 Plan Sheets Added 03/28/2019
20190328 002 - C22044-ALT Apparent Bids Updated; Letting: 20190328, Contid: C22044-ALT, Bidders: S3913, 005A, 672A, 1658, 854A, 1415A 03/28/2019
20190404 004 - C22920 1 New Attachment - 22920rv1.doc 03/28/2019
004 - C22920 3 Plan Sheets Added 03/28/2019
20190418 001 - C22289 346 Plan Sheets Added 03/27/2019
002 - C22363 303 Plan Sheets Added 03/27/2019
003 - C22926 124 Plan Sheets Added 03/27/2019
004 - C22936 127 Plan Sheets Added 03/27/2019
20190404 001 - C20839 1 New Attachment - 20839rv1.docx 03/25/2019
001 - C20839 Proposal Alert Updated 03/25/2019
20190328 001 - C21256 1 New Attachment - C21256.pdf 03/25/2019
001 - C21256 1 New Attachment - 21256rv1.doc 03/25/2019
001 - C21256 Proposal Alert Updated 03/25/2019
(15 Activities) More... Searching...