Cobb County Government

Policy for Procurement of Professional Services alt (Nov. 2014)

Cobb County Department of Transportation Transit Division DBE Program Methodology alt (April 2017)

Cobb County Purchasing - Bidding Opportunities


Online Bidding

Frequently Asked Questions

Cobb DOT has “Gone-Live” with online bidding opportunities. Cobb County DOT will include options for paper bidding and online bidding during a transition period of several months. After this time, only online bids through BidExpress will be accepted by Cobb DOT. For now, we are requesting all contractors to bid through only one system: preferably online, but not both. In addition, we will offer the option of online bid bonds or paper bid bonds.

For those contractors who are bidding online and would prefer to utilize the electronic bid bond option as well, click here for the electronic Bid Bond company information.

Contractors bidding online will need to create a Digital ID's through Bid Express.

If you have any additional questions or concerns, please contact the Bid Express Support Team at 888-352-2439. 

Below are links to information from Bid Express to help you register and get your digitial ID:

Quick Start Guide

Bid Express Smart Forms

Vendor Training and Registration Guide




Project Project No. Advertise Date Bid Date
2018 Countywide Unit Price Contract
Legal Advertisement alt
Special Provisions / Supplemental Specifications  alt
Section 4  alt
Section 5  alt
Section 6  alt
Section 7  alt
  12/01/2017 01/11/2017
2018 Countywide Right of Way Maintenance (North)
Addendum No. 2  alt

TR501 11/14/2017 12/14/2017
2018 Countywide Right of Way Maintenance (South)
Addendum No. 2  alt

TR502 11/14/2017 12/14/2017


RFP Schedule

Upcoming RFPs (In Order of Advertise Date)Dates Subject to Change



Project Project No. Advertise Date Bid Date
Incident Management - Video Wall Upgrade
Request for Proposal pdf icon(rs)
Addendum No. 1  pdf icon(rs)
X2510 09/15/2017 10/12/2017
Sandtown Road (Joint with the City of Marietta)
(Road and Safety Improvements)
X2610 12/29/2017 01/25/2018
I-75/Third Army Road Engineering
(New Interchange)




Last updated November 7, 2017