QUOTE: Originally posted by nfmisso I was thinking of something in the style of the Rainbow Bridge, but in the mountains, see: http://staff.niagara.edu/cab/Panorama/. To simulate concrete; I would form the arch by wetting both outer surfaces then bending a piece of 3/16 luan plywood, and holding it in a fixture. The deck and the supports between would be the same material. The deck would probably be two layers. To simulate steel, I would use plastic (solvent bonded) or brass (soldered) structural shapes. http://www.walthers.com/exec/productinfo/272-535 http://www.balsabridge.com/images/bridge-van/image009.jpg http://www.balsabridge.com/images/bridge-van/patullo2.jpg http://www.balsabridge.com/images/bridge-van/im1.jpg http://www.walthers.com/exec/productinfo/150-887 http://www.walthers.com/exec/productinfo/200-763 http://www.walthers.com/exec/productinfo/210-1902 http://www.walthers.com/exec/productinfo/272-222580 http://www.walthers.com/exec/productinfo/405-7626 http://www.walthers.com/exec/productinfo/433-8207 http://www.walthers.com/exec/productinfo/625-40081 http://www.walthers.com/exec/productinfo/713-1161 http://www.walthers.com/exec/search?manu=&item=&split=300&category=&scale=&instock=Q&keywords=bridge&start=0 Bridge & Trestle Handbooks http://www.walthers.com/exec/productinfo/205-99 http://www.walthers.com/exec/productinfo/310-889 http://www.walthers.com/exec/productinfo/290-952 http://www.walthers.com/exec/productinfo/400-12101