a few bridge questions

[Bigsteel]

thanks matt,there are truss bridge sections attached to trestles,but i should have stated,mine is steel and not wood per the usual construction.but im wondering if there is a way to modify my bridge to curve....i havent thought of a convincing way of doing it though and is still dont know how the bridge would be attached.but in the end if i cant find any good info ill just wing it and add a little bit more modelers license to my already fantasy inspired world --josh