Working on the new alignment for the Berlin Line (this will be the third). It will now be a 2% grade on 30" radius curves and a 36" radius S-curve. The mainline over it will be 28" and 30" radius. Clearance is my minimum - 2.75". But the yard lead will be level for 5 to 6 feet now, and there will be a 4' long 2% grade on the mainline before another level section on top of the helix.
This should help a lot with operations because the whole lead and the passing siding were on a grade before.