The Boston Central Artery Tunnel project ... The elevated highway stayed open throughout construction until the underground one opened to traffic. The project also extended an interstate highway ...

Kennedy Greenway, Boston’s second most popular urban living room after the Common that once had a hulking expressway—the old Central Artery—trucking through it, that is, before the Big Dig.

Boston Sand & Gravel Co ... mass pours for commercial and infrastructure projects; and construction projects, including central artery/tunnel project, waste water treatment plants, nuclear ...