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 problems and recommend cost-efficient solutions.


  • Corridor studies
  • New highway facilities
  • Widening and reconstruction projects
  • Frontage roads/access control
  • Industrial access roads
  • Intersection improvements
  • Roundabouts
  • Bridge replacements
  • Environmental (NEPA) studies
  • Resurfacing
  • Railroad design
  • Construction engineering and inspection