The EM-1 has a big overhang and it did just touch the left side of the trestle on the track that goes under and the track that goes along side the trestle. Will require some tweaking.
Clearance concerns for bigger engines are the outer curve entering the trestle and the curve along the front side.
The trestle will go over the three tracks along side the wall to where the curves start at the far end.
Clearance test vehicle, the Apprentice's B&O EM-1.