The Carbondale Road Interchange Reconstruction is located in Whitfield County, Georgia. The purpose of the project was to take an aging and overcrowded interchange and replace it with a new, better functioning one.
The project consisted of the reconstruction of Carbondale Road over I-75 as well as the reconstruction of 0.5 miles of Carbondale Road. Included in the project was the installation of a roundabout at the intersection of US 41.
The unique part of this project was instead of having conventional intersections on either side of the bridge over I-75 for the entrance and exit ramps, roundabouts were installed. Building roundabouts instead of intersections provided a way for there to be a continuous flow of traffic, both on and off the interstate. The roundabouts also presented a few challenges involving staging since they were constructed using concrete paving.