 The project, which includes two bridges over US 460, opened in December 2017 one year earlier than estimated.At the southern edge of the research park, US 460 meets its business route (Main Street) at a complex interchange featuring many flyover ramps and a variety of direct and indirect connections to allow every movement between the two highways.Immediately to the east of the interchange is the western end of the Virginia Smart Road, a Virginia Department of Transportation facility that is not open to the public.