Prior to joining Ohio University, he was working as a senior research scientist at Louisiana Transportation Research Center. Dr. Nazzal has taught graduate and undergraduate courses in the pavement and geotechnical engineering areas. He also has more than 45 publications in various areas of civil engineering, one of which was nominated for the 2007 TRB K. B. Wood Award for best paper in design and construction. Dr. Nazzal is a registered professional engineer.