Ok, some more land form work, and the sheet metal I am using to support the overpass. Like I mentioned earlier, for this track plan to work the overpass must curve, most bridges are straight. I will build up on and around the metal to give the appearance of being higher up. Tricky part is track must be laid on the bottom first and about 8 inches will be inaccessible permanently once the top is on. I am building up the mountains and surrounding areas. I will be adding backdrops to the back and sides to give distance and protect from trains falling.