I am in the process of working on a large H0 layout. Unfortunately, I don't have room for a conventional table-top level layout. Instead I will be building my layout about a foot or so below my ceiling, with much of the layout going along the walls as a narrow shelf type layout. At one point along the wall, I have a 4' wide window. I did not want to put support woodwork in front of the window, so I need to deal with a 4' clear span -- Aha! What a great place for a bridge. So I set about designing and building a long bridge.

This How To courtesy of Robert Heller
Website: http://www.deepsoft.com/

Complete How To is available as a downloadable file you can print: PDF Format (gziped)