02-18-2009, 05:50 PM
Tom - Excellent example !!! Those two left-most bridges were carefully engineered for that specific location. The trusses are asymetric to fit the skewed (angled) piers while still aligning the verticle members to carry the floor beams perpendicular between the side trusses. The track rides on straight stringers attatched atop or between the floor beams following the required line for the slightly curved track. Thanks for digging that up, Tom - Do you have a closer (more detailed) photo ? Bob C.
Boy, do I type (think) SLOOOOOWWW!!! BC
Boy, do I type (think) SLOOOOOWWW!!! BC
James Thurber - "It is better to know some of the questions than all of the answers."