Where I grew up as a kid, we had what was called singing bridges. There were 2 maybe 3 of them crossing the river. There were steel grates where water and sno

Where I grew up as a kid, we had what was called singing bridges. There were 2 maybe 3 of them crossing the river. There were steel grates where water and snow would fall trough to the river below. When yo drove over the bridge you would hear a hum. I the 90s they replaced these bridges with pavement. That was a bit sad to see, but that is what you get when cities fix everything in the cheapest possible way.