Bridges?

In several of the adventures you have to collect things and then make them into bridges to cross things like swamps etc.

As we know, making tracks / roads in the game doesn't speed up anything but does make it look pretty and for those of us consumed with tidiness makes our islands (in our opinion) look ordered. I even have a coastal road going right round my island for my settlers to go on breaks when I'm not there!

Anyway back to bridges - on the island expansion we have fords between the islands, how about either adding into the buildings, the possibility of making different bridges to go in these places for different resources, or even making them available say as loot on some of the less popular adventures and make them tradable as well? I don't know perhaps 3 - 5 different levels of bridge or 1 bridge which could be upgradeable like a building or 3 different types, each upgradeable?