I've been planning on putting a high level track along the back of my in-progress layout. My original intention was to have the level change dealt with by a retaining wall. I'm now considering implementing this as railway arches, with businesses operating from them, should add a little interest at the back of the layout. If it's not a stupid question, is there a typical size for the arches? I am presuming that the span will be fairly constant, with only the height being varied according to the level of the railway line. Has anyone worked out some dimensions for this? Not rocket science I know, but no point in re-inventing the wheel, Cheers, Bill.
18 years ago