The Charlestown Bridge hum
Traffic over steel grates sounds like the Indy 500.
It’s known as the Charlestown Bridge, also the North Washington Street Bridge. For our purposes, a renaming is in order. On a friend’s suggestion, we’re going to call it the Humming Bridge. With origins back to the late 19th century, the span connects downtown Boston to Charlestown over the Charles River. Back in the day, it carried elevated trains, swung open to let boats in and out of the river, and played host to fights between the toughs of Charlestown and the North End. Big sections of the bridge surface are just steel grates, composed of thousands of small squares, the water shimmering beneath them. Which brings us to the hum.