Carlton County Transportation Department

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In an effort to make the solicitation process more efficient and cost effective for both contractors and the agency, Carlton County Transportation has adopted an electronic bidding process for Transportation Construction Projects. Electronic bids must be submitted at the website as the method of bid submission. This process is the same process used by St. Louis County Public Works. It is strongly recommended vendors become familiar with the electronic process as soon as possible.

Secure electronic bidding allows contractors/vendors to:
*Eliminate late bids due to weather, mail, and traffic delays
*Minimize bid disqualification due to omissions
*Reduce costs removing delivery, printing, and resource costs
*Bid and re-bid until the last minute
*Download bid documents including plans for free
*Validate bid bonds online

Learn more on the vendor resources page or this vendor overview PDF.

All electronic bidders must first register on and create an Info Tech Digital ID for free, which is used to digitally sign bids. Digital IDs/Signatures assure the agency knows who the bid is really from (forgery resistance), ensure nobody can alter a bid (non-repudiation), prevent information in a bid from disclosure to unauthorized parties (secrecy), and safeguard that even authorized parties cannot access them prior to the public opening (sealing).

It can take up to five business days to process your Digital ID and it is highly recommended that a Digital ID be enabled 48 hours in advance of submitting an electronic bid. Please plan accordingly. See the Bid Express Vendor Guide for a detailed step-by-step walk-through. Instead of paying paper bidding costs (hand or hired delivery costs), a fee of $25 will be incurred for those who wish to bid electronically on a pay-per solicitation basis. Alternatively, you may subscribe for $50 per month for unlimited electronic bid submission for all agencies posting solicitations on the website, plus get email notifications by agency/work type/commodity code.

For bidders who are bidding online and wish to utilize the electronic bid bond option, please see the FAQs page regarding electronic bid bonds (bottom of the page in the link).

For additional guidance, please contact the Bid Express team at toll free (888) 352-2439 (select option 1) or at