Missions for bridges and removing obstacles in Maine, Don, Austria and Belozersk

It seems to me that there should be missions for these obstacles. Of course you just can take the offroad detour every time, but for me a shortcut and new missions are always welcome.

Maine lowland mission for a bridge

Maine Yellowrock missions to remove these rocks on the roads

Don factory grounds missions for these rocks

Austria Unterfeld a mission for this bridge

Austria foothills a mission for this bridge

Belozersk institute 2 bridges

Belozersk heartlands 2 bridges