WidWed - Enclosed

When I took this photo today it was because I liked the scene, but afterwards when I looked closely I could see that the metalwork on the bridge has been used to partly enclose the pipes that run across it. I've no idea what they're for or where they come from or go, but seeing as the WidWed theme is enclosure or enclosed, I thought this would serve as my link to the challenge.

Thank you for visiting my journal and for the kind response to yesterday's blip.