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
20190321 008 - C20887 Apparent Bids Updated; Letting: 20190321, Contid: C20887, Bidders: 032A, 695A, 757A 03/22/2019
002 - C20401 Apparent Bids Updated; Letting: 20190321, Contid: C20401, Bidders: 03/21/2019
001 - C21223 Apparent Bids Updated; Letting: 20190321, Contid: C21223, Bidders: 03/21/2019
20190328 001 - C21256 New Proposal Added 03/21/2019
001 - C21256 658 Plan Sheets Added 03/21/2019
20190321 005 - C22388 Apparent Bids Updated; Letting: 20190321, Contid: C22388, Bidders: 03/21/2019
004 - C22389R Apparent Bids Updated; Letting: 20190321, Contid: C22389R, Bidders: 03/21/2019
003 - C22786 Apparent Bids Updated; Letting: 20190321, Contid: C22786, Bidders: 720A, 697A, 1476A 03/21/2019
20190328 New Letting Created 03/19/2019
002 - C22044-ALT New Proposal Added 03/19/2019
002 - C22044-ALT 1 New Attachment - C22044-ALT.pdf 03/19/2019
002 - C22044-ALT 1 New Attachment - 22044-ALTrv1.docx 03/19/2019
002 - C22044-ALT 1 New Attachment - 22044rv2.docx 03/19/2019
002 - C22044-ALT 1 New Attachment - 22044rv3.docx 03/19/2019
002 - C22044-ALT 1274 Plan Sheets Added 03/19/2019
002 - C22044-ALT 11 Plan Sheets Added 03/19/2019
002 - C22044-ALT 46 Plan Sheets Added 03/19/2019
002 - C22044-ALT 35 Plan Sheets Added 03/19/2019
002 - C22044-ALT Proposal Alert Updated 03/19/2019
20190321 007 - C22044-ALT Proposal Withdrawn 03/18/2019
20190425 New Letting Created 03/14/2019
20190404 Letting Made Available 03/14/2019
001 - C20839 New Proposal Added 03/14/2019
001 - C20839 1 New Attachment - C20839.pdf 03/14/2019
001 - C20839 594 Plan Sheets Added 03/14/2019
20190321 001 - C21223 8 Plan Sheets Added 03/14/2019
001 - C21223 Amendment Loaded 03/14/2019
001 - C21223 1 New Attachment - 21223rv2.pdf 03/14/2019
001 - C21223 4 Plan Sheets Added 03/14/2019
20190404 002 - C21748 New Proposal Added 03/14/2019
002 - C21748 1 New Attachment - C21748.pdf 03/14/2019
002 - C21748 198 Plan Sheets Added 03/14/2019
20190425 001 - C21893 New Proposal Added 03/14/2019
001 - C21893 1 New Attachment - C21893.pdf 03/14/2019
001 - C21893 1910 Plan Sheets Added 03/14/2019
001 - C21893 7 Plan Sheets Added 03/14/2019
20190314 003 - C21896 Apparent Bids Updated; Letting: 20190314, Contid: C21896, Bidders: 027A, 005A, 672A 03/14/2019
004 - C21927 Apparent Bids Updated; Letting: 20190314, Contid: C21927, Bidders: 1658, 672A, 005A 03/14/2019
20190404 003 - C22569 New Proposal Added 03/14/2019
003 - C22569 1 New Attachment - C22569.pdf 03/14/2019
003 - C22569 288 Plan Sheets Added 03/14/2019
20190321 003 - C22786 1 New Attachment - 22786rv1.pdf 03/14/2019
003 - C22786 7 Plan Sheets Added 03/14/2019
20190404 004 - C22920 New Proposal Added 03/14/2019
004 - C22920 1 New Attachment - C22920.pdf 03/14/2019
(45 Activities) More... Searching...