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
December
Letting Proposal Activity Activity Date
20181220 001 - C20258-COMBO Amendment Loaded 12/10/2018
001 - C20258-COMBO 1 New Attachment - 20258-COMBOrv2.pdf 12/10/2018
20190110 New Letting Created 12/06/2018
20190103 004 - C20740 New Proposal Added 12/06/2018
004 - C20740 1 New Attachment - C20740.pdf 12/06/2018
004 - C20740 211 Plan Sheets Added 12/06/2018
20181206 001 - C20751 Apparent Bids Updated; Letting: 20181206, Contid: C20751, Bidders: 025A, 757A, 695A, 160A 12/06/2018
20190110 002 - C20813 New Proposal Added 12/06/2018
002 - C20813 1 New Attachment - C20813.pdf 12/06/2018
002 - C20813 567 Plan Sheets Added 12/06/2018
20181206 003 - C20869 Apparent Bids Updated; Letting: 20181206, Contid: C20869, Bidders: 1174A, 1567A, 1086A, 1415A, 232A 12/06/2018
20190103 003 - C20892 New Proposal Added 12/06/2018
003 - C20892 1 New Attachment - C20892.pdf 12/06/2018
003 - C20892 274 Plan Sheets Added 12/06/2018
20190110 003 - C21010 New Proposal Added 12/06/2018
003 - C21010 1 New Attachment - C21010.pdf 12/06/2018
003 - C21010 427 Plan Sheets Added 12/06/2018
20181206 002 - C21317 Apparent Bids Updated; Letting: 20181206, Contid: C21317, Bidders: 027A, 005A, 672A 12/06/2018
20190103 002 - C21831 New Proposal Added 12/06/2018
002 - C21831 1 New Attachment - C21831.pdf 12/06/2018
002 - C21831 311 Plan Sheets Added 12/06/2018
005 - C22261 New Proposal Added 12/06/2018
005 - C22261 1 New Attachment - C22261.pdf 12/06/2018
005 - C22261 191 Plan Sheets Added 12/06/2018
20181213 009 - C22312 New Proposal Added 12/06/2018
009 - C22312 1 New Attachment - C22312.pdf 12/06/2018
009 - C22312 1 New Attachment - 22312rv1.docx 12/06/2018
009 - C22312 267 Plan Sheets Added 12/06/2018
009 - C22312 24 Plan Sheets Added 12/06/2018
009 - C22312 Proposal Alert Updated 12/06/2018
20190110 001 - C22377 New Proposal Added 12/06/2018
001 - C22377 1 New Attachment - C22377.pdf 12/06/2018
001 - C22377 719 Plan Sheets Added 12/06/2018
20181206 006 - C22442 Apparent Bids Updated; Letting: 20181206, Contid: C22442, Bidders: 1595, 010A, 360A, 696A, 677A 12/06/2018
20181220 002 - C22535 New Proposal Added 12/06/2018
002 - C22535 1 New Attachment - C22535.pdf 12/06/2018
002 - C22535 202 Plan Sheets Added 12/06/2018
20181206 005 - C22703 Apparent Bids Updated; Letting: 20181206, Contid: C22703, Bidders: 1437A, 924A, 1526A, 032A 12/06/2018
20181213 003 - C20334-COMBO Proposal Withdrawn 12/05/2018
(39 Activities)
What's New Table. What's New Table lists the last 50 activities that happened in regards to the lettings
November
Letting Proposal Activity Activity Date
20181206 005 - C22703 1 New Attachment - 22703rv4.docx 11/30/2018
005 - C22703 49 Plan Sheets Added 11/30/2018
20181129 011 - C18611 Apparent Bids Updated; Letting: 20181129, Contid: C18611, Bidders: 695A, 005A, 668A, 257A, 027A, 032A 11/29/2018
010 - C20285 Apparent Bids Updated; Letting: 20181129, Contid: C20285, Bidders: 954A, 360A, 232A, 1282A, 174A, 1459A 11/29/2018
010 - C20285 Apparent Bids Updated; Letting: 20181129, Contid: C20285, Bidders: 954A, 360A, 232A, 1282A, 174A, 1459A, 167A 11/29/2018
002 - C20322 Apparent Bids Updated; Letting: 20181129, Contid: C20322, Bidders: 757A, 032A, 884A, 637A 11/29/2018
008 - C20744 Apparent Bids Updated; Letting: 20181129, Contid: C20744, Bidders: 11/29/2018
(7 Activities) More... Searching...