3d ultra lionel traintown a bridge too far

You indicated that the Super has a problem with navigating over the 101 bridge and ramps. Could you please explain where the clearance problem(s) occur(s)? Is the height of the Hellgate's portals over the track at each end simply to low to allow the Super to pass through without the pantographs making contact? Or is there another clearance problem between the Super's apron and the track on the bridge or the bridge itself? If the latter, do you know if this problem exists with all types/brands of original and reproduction Hellgate bridges including Lionel's Hellgate Bridge #6-32999, whose base was modified to allow two O gauge tracks to run over it? See comparison photos below. Lastly, you mentioned the Super would not navigate over a Hellgate Bridge. I would imagine that the posts on each corner of the 101 bridge make it simply too narrow to allow the Super to pass through. Correct? But is navigating up the ramps also a problem for the Super? If not, attached below is a photo of another possible solution using ramps that would allow the Super to pass over an 'unmodified' 280 bridge.

Thanks! Your pictures showed me exactly what I needed to know, i.e., that the truss sides of the 280 bridge are not the problem, rather the it's the small triangular supports along the bottom that create the clearance problem, which your neat modifications solve.

3d ultra lionel traintown a bridge too far