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
Bells Ferry Road at Barrett Parkway/Piedmont Road Intersection Improvements

Legal Advertisement  alt
Special Provisions / Supplemental Specifications alt
Section 4 alt
Section 5 alt
Addendum No. 1  alt
Water Plan Sheet 24A-02  alt
Water Plan Sheet 24A-05  alt

D6040 06/16/2017 07/13/2017


RFP Schedule

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



Project Project No. Advertise Date Bid Date
Old 41 Highway
(Road and Safety Improvements)
Request for Proposal  pdf icon(rs)
X2609 04/14/2017 05/11/2017
John Ward Road (from Macland to Irwin)
Request for Proposal  pdf icon(rs)
Addendum No. 1 pdf icon(rs)
X2702 04/14/2017 05/11/2017
Campus Loop Road/Big Shanty/Chastain Road
(Intersection Improvements)
Request for Proposal pdf icon(rs)
X2303 04/28/2017 05/25/2017      
Sandtown Road (Joint with the City of Marietta)
(Road and Safety Improvements)
I-75/Third Army Road Engineering
(New Interchange)




Last updated July 28, 2017