This is Mutsumi Bridge, a pedestrian bridge that crosses over the Seibu Line near Tokorozawa Station. It's also quite a famous bridge.
Have you ever heard of the movie series "Ju-on (呪怨)?"
It's a Japanese horror film that was a big hit in Japan. After the first "Ju-on" film, it was so popular, another film, "Ju-on 2," was released. This also lead to a remake in Hollywood called "The Grudge" in 2004. I nearly died of fright just from seeing the trailer for this movie (which they kept on playing on TV...at night!) so I haven't seen it. But I hear it's pretty scary!
Anyways, so you may wonder what all this has to do with this bridge...well, Mutsumi Bridge was used in one of the scenes! More specifically, the very last scene in "Ju-on 2!"
Are you curious enough to watch it?
Click below for photos of (probably) non-horror-related bridges around the world!