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
November
Letting Proposal Activity Activity Date
20181115 011 - C20262 Apparent Bids Updated; Letting: 20181115, Contid: C20262, Bidders: 360A 11/15/2018
002 - C20684 Apparent Bids Updated; Letting: 20181115, Contid: C20684, Bidders: 672A, 005A 11/15/2018
007 - C20753 Apparent Bids Updated; Letting: 20181115, Contid: C20753, Bidders: 1557A, 1174A, 232A, 1567A, 672A, 905A 11/15/2018
20181129 004 - C20790 166 Plan Sheets Added 11/15/2018
20181115 003 - C21364S Apparent Bids Updated; Letting: 20181115, Contid: C21364S, Bidders: 1507A 11/15/2018
003 - C21364S Apparent Bids Updated; Letting: 20181115, Contid: C21364S, Bidders: 1507A, 697A, 720A 11/15/2018
008 - C21876 Apparent Bids Updated; Letting: 20181115, Contid: C21876, Bidders: 360A, 099H, 954A, 1682A, 870A, 1459A, 924A, 010A 11/15/2018
001 - C21878 Apparent Bids Updated; Letting: 20181115, Contid: C21878, Bidders: 1275A, 090A, 099H 11/15/2018
012 - C22086 Apparent Bids Updated; Letting: 20181115, Contid: C22086, Bidders: 1674 11/15/2018
006 - C22503 Apparent Bids Updated; Letting: 20181115, Contid: C22503, Bidders: 1507A, 1476A, 178A, 1276A 11/15/2018
20181129 011 - C18611 New Proposal Added 11/14/2018
011 - C18611 1 New Attachment - C18611.pdf 11/14/2018
011 - C18611 1 New Attachment - 18611rv.doc 11/14/2018
011 - C18611 1 New Attachment - 18611rv2.doc 11/14/2018
011 - C18611 1 New Attachment - 18611rv3.doc 11/14/2018
011 - C18611 334 Plan Sheets Added 11/14/2018
011 - C18611 13 Plan Sheets Added 11/14/2018
011 - C18611 16 Plan Sheets Added 11/14/2018
011 - C18611 Proposal Alert Updated 11/14/2018
20181115 004 - C18611 Proposal Withdrawn 11/14/2018
009 - C20285 Proposal Withdrawn 11/14/2018
20181129 001 - C22703 1 New Attachment - 22703rv1.pdf 11/14/2018
001 - C22703 55 Plan Sheets Added 11/14/2018
20181115 013 - C20744 Proposal Withdrawn 11/13/2018
20181129 009 - C22120R New Proposal Added 11/13/2018
009 - C22120R 1 New Attachment - C22120R.pdf 11/13/2018
009 - C22120R 1 New Attachment - 22120Rrv1.pdf 11/13/2018
009 - C22120R 1 New Attachment - 22120Rrv2.pdf 11/13/2018
009 - C22120R Proposal Alert Updated 11/13/2018
009 - C22120R 166 Plan Sheets Added 11/13/2018
009 - C22120R 16 Plan Sheets Added 11/13/2018
20181115 010 - C22120R Proposal Withdrawn 11/13/2018
013 - C20744 Proposal Alert Updated 11/09/2018
20181213 New Letting Created 11/08/2018
20181206 New Letting Created 11/08/2018
20181025 001 - C19664 Apparent Bids Updated; Letting: 20181025, Contid: C19664, Bidders: 1526A, 1437A, 065A, 1275A, 854A, 099H 11/08/2018
20181206 003 - C20258-COMBO New Proposal Added 11/08/2018
003 - C20258-COMBO 1 New Attachment - C20258-COMBO.pdf 11/08/2018
003 - C20258-COMBO 999 Plan Sheets Added 11/08/2018
20181129 002 - C20322 New Proposal Added 11/08/2018
002 - C20322 1 New Attachment - C20322.pdf 11/08/2018
002 - C20322 379 Plan Sheets Added 11/08/2018
20181206 001 - C20751 New Proposal Added 11/08/2018
001 - C20751 1 New Attachment - C20751.pdf 11/08/2018
001 - C20751 416 Plan Sheets Added 11/08/2018
20181129 004 - C20790 New Proposal Added 11/08/2018
004 - C20790 1 New Attachment - C20790.pdf 11/08/2018
004 - C20790 282 Plan Sheets Added 11/08/2018
006 - C20852 New Proposal Added 11/08/2018
(49 Activities) More... Searching...