|On a previous project I looked into girder bridges very similar to that. They are a bit pricey, but Micro Engineering offers a full line of girder kits, extensions, and steel towers in a handful of scales: http://www.microengineering.com/products_br.htm
Every time I see that bridge type I'm always reminded of Malcolm Furlow's "Crazy Horse Bridge" on the San Juan Central (http://www.polyweb.com/dans_rr/NarrowGauge2004/images/sjc014_98.jpg). If it's any help, in the book he builds that bridge by cutting plywood to the shape of the bridge, very similar to cookie-cutter style subroadbed, then affixes the girder plates to the plywood.
Last edited on Sun Feb 20th, 2011 09:01 pm by titus