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
20200528 001 - C23184 Apparent Bids Updated; Letting: 20200528, Contid: C23184, Bidders: 05/28/2020
20200604 001 - C22024 Amendment Loaded 05/27/2020
001 - C22024 1 New Attachment - 22024rv1.pdf 05/27/2020
001 - C22024 36 Plan Sheets Added 05/27/2020
20200611 New Letting Created 05/21/2020
20200618 New Letting Created 05/21/2020
20200611 001 - C21287 New Proposal Added 05/21/2020
001 - C21287 1 New Attachment - C21287.pdf 05/21/2020
002 - C21846 New Proposal Added 05/21/2020
002 - C21846 1 New Attachment - C21846.pdf 05/21/2020
20200618 001 - C22168 New Proposal Added 05/21/2020
001 - C22168 1 New Attachment - C22168.pdf 05/21/2020
20200611 001 - C21287 306 Plan Sheets Added 05/21/2020
002 - C21846 236 Plan Sheets Added 05/21/2020
20200618 001 - C22168 369 Plan Sheets Added 05/21/2020
20200528 003 - C22123-COMBO 11 Plan Sheets Added 05/18/2020
003 - C22123-COMBO Amendment Loaded 05/15/2020
003 - C22123-COMBO 1 New Attachment - 22123-COMBOrv1.docx 05/15/2020
20200514 001 - C23185 Apparent Bids Updated; Letting: 20200514, Contid: C23185, Bidders: 1231A, 1507A, 1276A, 720A 05/14/2020
20200515 Letting Made Available 05/14/2020
20200514 001 - C23185 Apparent Bids Updated; Letting: 20200514, Contid: C23185, Bidders: 1231A, 1507A, 1276A, 720A 05/14/2020
20200513 Letting Made Available 05/12/2020
20200521 New Letting Created 05/07/2020
20200528 New Letting Created 05/07/2020
20200604 New Letting Created 05/07/2020
20200521 001 - C23501 New Proposal Added 05/07/2020
001 - C23501 1 New Attachment - C23501.pdf 05/07/2020
20200528 001 - C23184 New Proposal Added 05/07/2020
001 - C23184 1 New Attachment - C23184.pdf 05/07/2020
002 - C23478 New Proposal Added 05/07/2020
002 - C23478 1 New Attachment - C23478.pdf 05/07/2020
003 - C22123-COMBO New Proposal Added 05/07/2020
003 - C22123-COMBO 1 New Attachment - C22123-COMBO.pdf 05/07/2020
004 - C23015R New Proposal Added 05/07/2020
004 - C23015R 1 New Attachment - C23015R.pdf 05/07/2020
005 - C23466 New Proposal Added 05/07/2020
005 - C23466 1 New Attachment - C23466.pdf 05/07/2020
20200604 001 - C22024 New Proposal Added 05/07/2020
001 - C22024 1 New Attachment - C22024.pdf 05/07/2020
20200521 001 - C23501 135 Plan Sheets Added 05/07/2020
20200528 001 - C23184 276 Plan Sheets Added 05/07/2020
002 - C23478 125 Plan Sheets Added 05/07/2020
003 - C22123-COMBO 360 Plan Sheets Added 05/07/2020
004 - C23015R 129 Plan Sheets Added 05/07/2020
005 - C23466 140 Plan Sheets Added 05/07/2020
20200604 001 - C22024 669 Plan Sheets Added 05/07/2020
20200507 001 - C22746 Apparent Bids Updated; Letting: 20200507, Contid: C22746, Bidders: 801A, 1682A, 174A, 870A, 954A, 232A, 360A, 780A 05/07/2020
002 - C22367 Apparent Bids Updated; Letting: 20200507, Contid: C22367, Bidders: 697A, 720A, 1231A 05/07/2020
003 - C22962 Apparent Bids Updated; Letting: 20200507, Contid: C22962, Bidders: 801A, 696A, 169A, 1174A, 766C, 232A, 1415A, 1459A, 780A 05/07/2020
002 - C22367 User deleted all (271) plan sheets for letting 20200507 and proposal C22367. (Plan set C22367-planset.pdf) 05/06/2020
(50 Activities) More... Searching...

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