[aphexx]

jo donoteat,
modeling works and can be used in a game i think. although not very detailed, but it depends on the concept and type of game, what the bridge should come along.
if you come near to it in a FPS it could be more detailed...some people use ~1200 polys or ~2400 tris for big single props..
texturing is not final yet, is suppose.

when rendering outdoor WIP it could help to use a light blue background, or even a gradient.

@Xerxes yes looks nice in the engine! a bit too black overall. use some lighter backgr. color.
the tiles are too bumpy and too less reflective. ceramic tiles would not splinter that way.
seems you made the normal out of the diffuse. if you do that, then first prepare the diffuse , for not every black spot becomes a cavity.
i would remove the much darker tiles, or arrange them to a motivated build pattern.