Thanks for all the great input.
Joe - I see what you mean about the far right corner. The other two corners already have access to them.
Stewart - I was so focused on the yard being a stand alone operation, that I missed the possibilities there. It's easy enough to interrupt switching ops and park the switcher on the lead to allow the reverse. I'll lay out the spacing of the turnout with the 4" track spacing and see what the overhang on my locos looks like. My SD18s would be the worst overhang of the locos that would go that route. While I have no plans to have the PA-1s to run that route due to the tight turns, I'll check them as well, as that would be the worst case scenario.
Carl - I'll look into the wye option and see how that pans out. I decided to go with tubular on the bridge for looks. I think non ballasted track on the bridge just looks better and the bottom of the bridge has good detail to boot. While the transitions don't connect electrically, they have the advantage of have a straight edge to mate to the tubular. It's easier than me trying to cut regular pieces to have the flush face.
I'll work with the track plan and repost.
