Nice shot.. Only little thing, I feel like the focus needed to be brought forwad just slightly to the Nut / bolt in front.. other then that, well done.
I'd like to see the big thing in the foreground more emphasized in post-processing. It seems to be the subject of the photo, but it's not standing out enough for my taste. Maybe a shot from slightly higher would've also worked.
You took a great shot but hard to identify it as a 'bridge' in any definition. To me its unclear what you are portraying here, almost abstract. Because of the good technical aspect of the photograph 7 but because of its abstract appearance to me I subtract 1 equaling a score of 6.