I concentrated on illustrating what Elliot mentioned and completely forgot to raise the bridge. So, I made some further changes to try to reduce the grades. To that end, I shortened the top entrance to the yard. I also moved the crossover to the left of the bridge closer to the entrance to the turntable spur. To allow trains to cross back over, I changed the direction of the crossover on the right side. While RR-Track allows negative track heights, it doesn't show anything below the terrain base in the 3D view, so I had to start at 0" and the 3D view still leaves a lot to be desired. Anyway, the bridge and leading tracks are 14", the turnout above the bridge is 11", the rest of track 1 is 7" and the yard is 0". Unfortunately, I was only able to get the grade at the top down to 5.6%, the rest are all below 4%, still not ideal.
I completely agree with Carl that the bridge and grade is going to obstruct the view of the rear tracks. I had the same problem with my initial designs and I ended up taking my bridge out. However, I am at a loss on how to restructure this design other than using pylons to elevate much of the grades to/from the bridge.
