Boston Elevated Railway Company's streetcar No. 393 smashes through the warning gates of the open Summer Street drawbridge in Boston, Massachusetts, plunging into the frigid waters of Fort Point Channel, killing 46 people.[1]

The Boston Elevated Railway (BERy) was a streetcar and rapid transit railroad operated on, above, and below, the streets of Boston, Massachusetts and surrounding communities. Founded in 1894, it eventually acquired the West End Street Railway via lease and merger to become the city's primary mass transit provider. Its modern successor is the state-run Massachusetts Bay Transportation Authority (MBTA), which continues to operate in part on infrastructure developed by BERy and its predecessors.