Expect full support from concept to completion.

Driving Progress in Transportation

In 1946, CDG’s founders, W.B. McDonald and M.S. Hooper, set out to provide the progressive engineering services that would build the infrastructure across the Southeast.

McDonald and Hooper’s legacy is carried on as the engineers of CDG continue working to enhance the utility systems, road networks and highways that serve today’s population and prepare for future generations.

After seven decades of experience in the transportation industry, CDG understands the complex funding and approval processes governing transportation project design.

Our staff provides detailed, hands-on direction to guide your ideas all the way through the system. We evaluate your transportation challenges and recommend cost-efficient solutions.


Each project begins with a simple conversation. To get your project started, tell us about your vision.


Corridor studies
New highway facilities
Widening and reconstruction projects
Frontage roads/access control
Industrial access roads
Intersection improvements
Traffic signalization design
Traffic signal timing and warrant analysis
Roundabout capacity analysis and design
Bridge replacements
Environmental (NEPA) studies
Railroad design
Construction engineering and inspection
School traffic circulation
Safe routes to school plans

Connect with us today. Talk to an expert at [email protected] or 334-222-9431