I like the way you've used the two bridges as objects that draw the eye in but overall I think the picture is a little dark. The only other thing that bothers me is that construction over the road that looks like a large signpost (?). It takes the attention off the two bridges. I do like the pattern on the bridges though.
I think this is a great shot. I like the curves and I especially like the composition. IMO, The compositional elements of progression rhythm and continuation evidenced in the side rails in the highways outway the minor distraction of that sign thing.
In fact, I even like the contrast that the lines and angles give the gentle curves.