I often pass this sight on my walk around Birmingham. It's just under the famous (!) Spaghetti junction. I don't know if you can see but it's a motorway flyover over a road, that's over a canal, that's over a river. Quite a feat of engineering!
You'll often find me down on the canals, it's my secret path into & out of the city. I rarely meet other people on it, a peaceful time to be with my own thoughts.