The population in Boone County, Kentucky, more than doubled over the last three decades and the steady growth isn’t stopping anytime soon. Located at the convergence of three major interstate systems and home to the Greater Cincinnati-Northern Kentucky International Airport, it’s easy to see why. However, the influx of residents has led to an increase in vehicular and non-vehicular traffic, and KY 237—a major roadway that serves as Boone County’s spine and connects neighborhoods and businesses—needed improvements to keep up.
The Kentucky Transportation Cabinet called on Gresham Smith to transform a 5.2-mile stretch of the curvy, two-lane roadway into an efficient corridor that reduces congestion, reconnects neighborhoods and accommodates alternative modes of transportation. Using a multi-lane roundabout, a single-point urban interchange (SPUI) and a multi-use path, the design team delivered a modern roadway that meets the needs of the growing Boone County community. The project was built in three phases, the last of which was completed in the summer of 2022.
reduction in traffic accidents
single-point urban interchange