So yea, Bridge Construction Set, Pontifex 2, or BCS, is a puzzle game where the objective is to build bridges for cars, trucks, trains, and sometimes, drawbridges. The game is NOT free, but you can get a free demo HERE.
The game is really cool cause its cross-plataform, and you can create your own levels, so you can pretty mcuh create ANY BRIDGE YOU WANT.
So, as soon as you get your game working and make some pwnsome bridges, post the files here.

I will put some videos of my bridges on my new Youtube channel, SohnoJam, which I actually created a few days ago so it's still video-less.