Bridge Constructor

This one is pretty easy if you want to try and do this yourself, the only real problem is bridge 7. Remember that the bridges don't have to be stable. I had plenty that were bending I wouldn't dare drive over in real life. I have taken screenshots of each of my set-ups and included them below. Note: for bridge 7 there is wood in between, connecting the steel cable to the horizontal bridge. These set-ups also work for the trucks. In fact, simply run the trucks over and you'll unlock this stackable achievement, saving you some time.