Vaughn & Melton specializes and is an industry leader in the design, engineering and project management of local, state, and federal transportation projects. Staffed by over 150 planners, designers, and engineers, Vaughn & Melton helps municipalities, county governments, and state departments of transportation successfully complete road, bridge, freeway, interchange, traffic management, safety and multimodal transportation projects.

Utilizing integrated design strategies, cutting edge software solutions and innovative engineering experience, Vaughn & Melton’s goal is to safely and efficiently move people and commerce on our country’s roadways.

Project History

2017 View Looking east from Alcoa Highwa

R-2915A, US 221/US 421 Interchange


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.


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