I have been pondering this idea for a while, wondering if it was trying for "too much" or not. Opinions and feedback welcome!
I continued the hidden track around to complete another loop. This does two things: 1) the second loop circuit allows two trains to loop without switching turnouts - so I can sit back with a drink and watch two trains run. 2) The second plus added is the loop-to-loop route now is a longer run, with a spiral out from the yard and around, before it picks up the grade at the turnout.
With the elevated and bridge:
As the previous design, there are three hidden turnouts under the elevated, all three easily accessible (360-degree access with rolling table). No additional turnouts needed, so the cost goes up only with the extra half circle of track, small $$.
Two inches were added to the width (5'2"), nothing to the length.
