Building a bridge or tunnel adds a dramatic scene to your model railroad. In this article collection you'll get an overview of different types of bridges and see many photos of examples to model as well as detailed plans for building a pin-connected truss bridge. For a modern era layout, you'll find a step-by-step article on modeling a highway underpass. Plus you'll learn easy ways to detail visible tunnel portals and how to hide openings to your staging yard or other hidden areas. (20 pages, 3.3 MB)