John Karn

Arup, an engineering and consulting firm based in London announced on Aug. 22 the promotion of John Karn to principal. Karn is a civil engineer in Arup’s New York office, where he leads the New York Infrastructure Subgroup and Transaction Advice practice. Karn is also a member of the Americas Infrastructure Practice Executive. He joined the firm in 2004 and has 25 years of experience, including more than a decade at the California Department of Transportation in project development and construction management. His recent projects include Revised Green Line Extension Program Recommendations for the Massachusetts Bay Transportation Authority, Maryland’s Purple Line light rail transit and the Indiana Toll Road acquisition.