Started work on the “loop track” for the lower level.

The turnouts will be located right at the exit from the Helix, wrap around and then run behind the computer desk.

Not pictured is the two doors it will have go cross. I picked up a 6′ long Heavy Duty Shelf Standard. Pretty sturdy for the length. This will act as the main beam for the bridge span (thanks to Gary S. for the inspiration).

and a view where the refinery will go.