Here are my 3 successful foot bridge submissions. I have tried 3 or 4 others which were concrete or brick and none were accepted. Gos Brook one was the one that I tried 10 times before it was accepted. Maybe the successful ones are useful as examples of the pictures, titles and descriptions that eventually worked?
I found that a side on image showing the structure and some water worked best as the main image, and usually my support picture showed the path entering the bridge and the view across it.
The Gos Brook trail isn’t a named trail or anything, just a common walking route worn into the grass, because walking alongside the brook is quite pretty. It is inside a park though.