A hole in the wall X4 - a liftout bridge (page 12)

[Bigsteel]

1'4" is plenty of room in between levels for a two tier layout,but like you said,the HOn3 level might be a bit of a reach.id make it narrower than you have it if possible and plan from there.plus since its narrow gauge it could easily handle rather tight curves,and is it possible to cut a hole through the wall on the left side and run your HO stuff through there to eliminate the big loops?.i also wouldnt want to make a two level bridge,you could try but to get them both to either swing out of the way or lift up in unison would be a feat.if your keeping the HOn3 stuff simple,id just go with a point to point with either a wye or TT at each end.or you could just use the old 0-5-0 .--josh