So, I found this game, creatively named
Bridge Building Game (you'll have to scroll down for it). You build a bridge and drive a train over to test it. I was playing and steadily progressing through the levels, when I came to this crazy level, which only has one point to connect the bridge to the ground, on the left side. Then there's this bump on the right side.
Now, I'd build a ramp, if it were possible. The game gives you a ground line. Any part of the bridge not build on that is solely for support, and the train won't touch it as it goes by. So if I build a ramp, the train goes right through it. If I build a bridge straight across, the train runs into the other side. Not knowing what else to do, I decided to do something completely different. I built a swing.
Click to view
I had to send the train at just the right time to get it to work.
Luckily the train only has to get across once, because this is one of the old levels from an earlier version of the game. In the new levels, the train turns around and comes back.
Edit: I realize now that I could have built a simple straight bridge part of the way across with weight on the left to make it tip up and form a ramp. Oh, well. This was more fun.