The train with load of goods and passengers is on its way from station one to the station two. In between there are some ravines and you have to design a bridge for it to pass over. Think carefully how that bridge will be suspended because even if it looks like it can take on a train it just might have some engineering flaws. In this game you are a viaduct designer and you have to do your best job if we are to transport everyone and everything safely from one point to the next.