The BU Bridge

The BU Bridge is a combined road and rail bridge connecting Boston and Cambridge, Massachusetts, over the Charles River. It carries Massachusetts Bay Transportation Authority (MBTA) commuter rail trains and several vehicular lanes for cars and trucks. Built in 1928, it has historical significance and serves as a critical transportation link, enabling the movement of thousands of commuters daily between the two cities. The bridge’s design incorporates both pathways, supporting efficient transit and traffic flow across the river, and it is an important part of Boston's transportation infrastructure.