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
20200109 New Letting Created 12/05/2019
001 - C21209 New Proposal Added 12/05/2019
001 - C21209 1 New Attachment - C21209.pdf 12/05/2019
001 - C21209 206 Plan Sheets Added 12/05/2019
003 - C22402 New Proposal Added 12/05/2019
003 - C22402 1 New Attachment - C22402.pdf 12/05/2019
003 - C22402 397 Plan Sheets Added 12/05/2019
002 - C22422 New Proposal Added 12/05/2019
002 - C22422 1 New Attachment - C22422.pdf 12/05/2019
002 - C22422 129 Plan Sheets Added 12/05/2019
004 - C22620 New Proposal Added 12/05/2019
004 - C22620 1 New Attachment - C22620.pdf 12/05/2019
004 - C22620 170 Plan Sheets Added 12/05/2019
005 - C23146 New Proposal Added 12/05/2019
005 - C23146 1 New Attachment - C23146.pdf 12/05/2019
005 - C23146 123 Plan Sheets Added 12/05/2019
(16 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
20191219 New Letting Created 11/21/2019
(1 Activity)
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
002 - C20756 13 Plan Sheets Added 12/10/2019
002 - C20756 Amendment Loaded 12/09/2019
002 - C20756 1 New Attachment - 20756rv1.docx 12/09/2019
(3 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
002 - C20756 New Proposal Added 11/21/2019
002 - C20756 1 New Attachment - C20756.pdf 11/21/2019
002 - C20756 356 Plan Sheets Added 11/21/2019
(3 Activities)
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
003 - C21208 26 Plan Sheets Added 12/10/2019
003 - C21208 Amendment Loaded 12/09/2019
003 - C21208 1 New Attachment - 21208rv1.pdf 12/09/2019
(3 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
003 - C21208 New Proposal Added 11/21/2019
003 - C21208 1 New Attachment - C21208.pdf 11/21/2019
003 - C21208 381 Plan Sheets Added 11/21/2019
(3 Activities)
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
008 - C21790 New Proposal Added 12/05/2019
008 - C21790 1 New Attachment - C21790.pdf 12/05/2019
008 - C21790 331 Plan Sheets Added 12/05/2019
010 - C21818 20 Plan Sheets Added 12/10/2019
010 - C21818 New Proposal Added 12/09/2019
010 - C21818 1 New Attachment - C21818.pdf 12/09/2019
010 - C21818 1 New Attachment - 21818rv1.pdf 12/09/2019
010 - C21818 Proposal Alert Updated 12/09/2019
010 - C21818 437 Plan Sheets Added 12/09/2019
001 - C21850 55 Plan Sheets Added 12/10/2019
001 - C21850 Amendment Loaded 12/09/2019
001 - C21850 1 New Attachment - 21850rv1.pdf 12/09/2019
(12 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
001 - C21850 New Proposal Added 11/21/2019
001 - C21850 1 New Attachment - C21850.pdf 11/21/2019
001 - C21850 945 Plan Sheets Added 11/21/2019
(3 Activities)
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
009 - C21863 21 Plan Sheets Added 12/10/2019
009 - C21863 New Proposal Added 12/09/2019
009 - C21863 1 New Attachment - C21863.pdf 12/09/2019
009 - C21863 1 New Attachment - 21863rv1.pdf 12/09/2019
009 - C21863 141 Plan Sheets Added 12/09/2019
009 - C21863 Proposal Alert Updated 12/09/2019
(6 Activities) More... Searching...