Here are some pictures of the Warren Truss Bridge I built for my N scale diaroma. The bridge is a fairly simple construction, using strips of bass wood and white glue.
The images are fairly large, as I haven't reduced them in size. With my computer, the bridge is actually larger on screen than it is on the diaroma. (If the URL wraps, just copy and paste everything between the "- " and " -" characters.)
760k -Puckdropper