I realize one could do away with road upgrades, but would there be any chance at all of getting rid of the bridges themselves but keeping roads and highways? If we could just have river crossings at every river instead?

I guess I am hoping that there might be some sort of 'redirect' when the exe searches for the battle map buildings - and maybe something could be done in that area. But I know nothing at all about how the game handles battle map buildings, so it's a shot in the dark to even ask the question.