I'm not really sure if this is a bug or a feature

I realized that highways won't build normal bridges across water anymore instead you get the same dams that they build on land.
I guess it is a side effect of the new raised highways, which are really great, don't get me wrong, but I would rather prefer it, if highway bridges across water return to the look that they had before. Its just looks more realistic, because a bwaterway would never be blocked off by a dam, it would be crossed by a sleek bridge.
Maybe the game does not allow for a distinction of bridge styles between water and land, I don't know, but I hope this can be fixed somehow.