Project History
R-2915A, US 221/US 421 Interchange
CLIENT: NCDOT
This project consisted of widening 2.8 miles of existing roadway in Ashe and Watauga Counties from a 2-lane roadway to a 2-lane roadway with raised medians, superstreet intersection design, and the addition of a trumpet style interchange at the US 421/US 221 intersection. This project had numerous intersections designed to superstreet design standards to provide a higher level of safety for the traveling public having to cross over the opposing travel lanes.
Expertise
Highways and streets
Local streets/interstates
Rural/urban interchanges
Streetscapes
Intersection improvements
Work zone traffic control
Rehabilitation of interstates
Route survey
Transportation Planning
Advanced planning reports
Greenways/bicycle paths
Parking studies/design
Traffic counts
Location studies