The $176 million I-75 South Managed Lane project is C.W. Matthews Contracting Company’s largest highway construction project. The scope of this design-build project is to construct 12 miles of barrier separated reversible toll lanes starting at SR 155 in Henry County and ending at SR 138 in Clayton County. The first stage and vast majority of the work is to widen I-75 on the outside and push traffic onto the new outside construction allowing room in the middle for construction of the managed lanes. The roadway typical section is asphalt and the scope includes; the construction of four bridges, seven toll plazas, extensive retaining wall and sound barrier walls and installation of the infrastructure necessary to accommodate the dynamic tolling system. The project was opened for tolling in January 2017 with a final completion in June 2017.