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
October
Letting Proposal Activity Activity Date
20201112 Letting Made Available 10/22/2020
001 - C22498 534 Plan Sheets Added 10/22/2020
002 - C22558 295 Plan Sheets Added 10/22/2020
003 - C23420 230 Plan Sheets Added 10/22/2020
004 - C23322 238 Plan Sheets Added 10/22/2020
005 - C21794 229 Plan Sheets Added 10/22/2020
006 - C23617 343 Plan Sheets Added 10/22/2020
007 - C22553R 508 Plan Sheets Added 10/22/2020
20201022 001 - C20955RA New Proposal Added 10/10/2020
001 - C20955RA 1 New Attachment - C20955RA.pdf 10/10/2020
001 - C20955RA 1 New Attachment - 20955Rrv1.pdf 10/10/2020
002 - C20955RB New Proposal Added 10/10/2020
002 - C20955RB 1 New Attachment - C20955RB.pdf 10/10/2020
002 - C20955RB 1 New Attachment - 20955Rrv1.pdf 10/10/2020
003 - C20955RC New Proposal Added 10/10/2020
003 - C20955RC 1 New Attachment - C20955RC.pdf 10/10/2020
003 - C20955RC 1 New Attachment - 20955Rrv1.pdf 10/10/2020
001 - C20955RA User added 283 of 283 plan sheets to letting 20201022 and proposal C20955RA prior to encountering an upload error. Additional plan sheets may have been successfully added after the error. 10/10/2020
001 - C20955RA 282 Plan Sheets Added 10/10/2020
002 - C20955RB User added 283 of 283 plan sheets to letting 20201022 and proposal C20955RB prior to encountering an upload error. Additional plan sheets may have been successfully added after the error. 10/10/2020
002 - C20955RB 282 Plan Sheets Added 10/10/2020
003 - C20955RC User added 283 of 283 plan sheets to letting 20201022 and proposal C20955RC prior to encountering an upload error. Additional plan sheets may have been successfully added after the error. 10/10/2020
003 - C20955RC 282 Plan Sheets Added 10/10/2020
001 - C20955RA User added 21 of 21 plan sheets to letting 20201022 and proposal C20955RA prior to encountering an upload error. Additional plan sheets may have been successfully added after the error. 10/10/2020
001 - C20955RA 20 Plan Sheets Added 10/10/2020
002 - C20955RB User added 21 of 21 plan sheets to letting 20201022 and proposal C20955RB prior to encountering an upload error. Additional plan sheets may have been successfully added after the error. 10/10/2020
002 - C20955RB 20 Plan Sheets Added 10/10/2020
002 - C20955RB User added 21 of 21 plan sheets to letting 20201022 and proposal C20955RB prior to encountering an upload error. Additional plan sheets may have been successfully added after the error. 10/10/2020
002 - C20955RB 20 Plan Sheets Added 10/10/2020
003 - C20955RC User added 21 of 21 plan sheets to letting 20201022 and proposal C20955RC prior to encountering an upload error. Additional plan sheets may have been successfully added after the error. 10/10/2020
003 - C20955RC 20 Plan Sheets Added 10/10/2020
002 - C20955RB User deleted all (325) plan sheets for letting 20201022 and proposal C20955RB. (Plan set C20955RB-planset.pdf) 10/10/2020
002 - C20955RB User added 283 of 283 plan sheets to letting 20201022 and proposal C20955RB prior to encountering an upload error. Additional plan sheets may have been successfully added after the error. 10/10/2020
002 - C20955RB 282 Plan Sheets Added 10/10/2020
002 - C20955RB User added 21 of 21 plan sheets to letting 20201022 and proposal C20955RB prior to encountering an upload error. Additional plan sheets may have been successfully added after the error. 10/10/2020
002 - C20955RB 20 Plan Sheets Added 10/10/2020
20201015 001 - C22107 Proposal Withdrawn 10/10/2020
20201022 005 - C22107 New Proposal Added 10/10/2020
005 - C22107 772 Plan Sheets Added 10/10/2020
005 - C22107 5 Plan Sheets Added 10/10/2020
005 - C22107 Proposal Alert Updated 10/10/2020
005 - C22107 Proposal Alert Updated 10/10/2020
20201029 New Letting Created 10/08/2020
001 - C23068 New Proposal Added 10/08/2020
001 - C23068 1 New Attachment - C23068.pdf 10/08/2020
002 - C23295 New Proposal Added 10/08/2020
002 - C23295 1 New Attachment - C23295.pdf 10/08/2020
001 - C23068 398 Plan Sheets Added 10/08/2020
002 - C23295 409 Plan Sheets Added 10/08/2020
20201022 004 - C21689 2 Plan Sheets Added 10/08/2020
(50 Activities) More... Searching...

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