I have a question regarding the building of the hiway for my layout. I started with the blue syro for underlay then laid done my cork and track. So now I want to build my hiway. What does everyone use to build it up. Could you use cork and then it would be the same hieght, or could I use plaster and spread it in narrow stips, or sould I rip some 2x4's 1/4" thick and lay it down for the road, Problem then is the curves. It has been a while since my last post, the train is comming along fine and will post pictures soon.