Here’s how I fixed the bridge elevation problem.

Ididn’t want to start the grade as soon as you come off the bridge, so I added two layers of cork on top of .040″ of styrene to raise up the roadbed.  This is long enough to it’ll stay level until the track enters the tunnel portal that’s going in this area.

Then I added a Woodland Scenic 2% riser for the grade and painted it black to help conceal it.  Since the track here will be hidden in the tunnel, I’ll lay the track right on the riser.

Shaun Track