What unique feature does the Boston University Bridge have?

The Boston University Bridge is renowned for its unique engineering that allows for a remarkable combination of transportation modes in a constrained space. It has the distinctive capability of enabling boats to pass beneath the bridge while a train travels underneath the road that is crossed by vehicles, and simultaneously, airplanes can fly overhead. This layered arrangement illustrates a complex but functional intersection of land, sea, and air transportation.

This multifaceted design exemplifies innovative engineering solutions to accommodate various forms of transit within a limited urban space. The bridge’s ability to serve such diverse uses is part of what makes it a notable structure in the area, emphasizing the ingenuity of its design in managing different levels of transportation efficiently.