Developer JBG Smith starts construction on the big Potomac Yard redevelopment project in Alexandria, Virginia, this month. The 20-acre site, between U.S. Route 1 and Dangerfield Island on the Potomac River, will be home to the $1 billion Virginia Tech Innovation campus, as well as office, hotel and residential buildings and retail. It is next to the planned new Potomac Yard Metro station, expected to open next year. Potomac Yard is currently a mix of residential and retail buildings. JBG Smith’s initial development will include demolition and infrastructure work to prepare the site for redevelopment. Phase 1 of Potomac Yard will include four office towers and two residential buildings with street level retail space, in addition to Virginia Tech’s campus. Virginia Tech is proceeding with construction on its first phase, with a 300,000-square-foot education and research building. The 11-story building, set to be completed in 2024, will be used for masters and doctoral graduate programs focused on computer science and computer engineering.