Thanks Mark and Bob,
The challenge is that the spacing on the fasttrack is different than the spacing for the MTH bridges. The distance required between rails so that I can have switches to crossover from the inner to the outer loops is the standard 6+ inches for Lionel fast track. The bridges are closer to a 4 1/2 inch spacing. Not sure if that topic Has been covered before, but it is taking some time for me to figure out the track exactly. That’s pretty much my next step after I temporarily affix these pieces. Anyways that’s a longwinded answer for why I can’t use my double arch bridge somewhere else on the upper loop because I need to have that spacing for the crossovers.
