Not too shabby! I like how the vanishing point is off to the side, rather than dead down the middle. That leads the eye nicely through the frame. I think it could use an extra something though...I dunno, a person walking down the bridge, a beam of sunlight coming through a broken shingle...something to give it one last bit of oomph.
Also, I totally agree that the saturation needs a boost. Then again I tend to lean toward that 'velvia' look.
I wonder if this shot would get too confusing and jumbled if it were converted to black and white and the contrast boosted some??