I had forgotten to pre-drill holes in the subroadbed supports for the left-hand side of the layout, so that needed to be done next. I then installed the stripped bus feeders, just like I did in the center section of the layout.



In order to avoid future problems with track that is hard to access, I decided to put down some code 55 Micro-Engineering flextrack. However, there is quite a visual difference between handlaid track and commercial flextrack. The plan is to then hide the flextrack completely. So I marked off on the cork subroadbed where the front edge of the tunnel portals are going to be for the lower level. I use a three-inch tall block and sighted down the front fascia board to determine where the tunnel portals would be placed. The lines in the photo below are marked with "T.P." (Tunnel Portal). I also extended the lines down the side of the plywood subroadbed because the cork will eventually be covered with track and ballast.



Using the locations of the tunnel portals, I could then determine how far into the tunnel a person could see, and that point was going to be where the flextrack will start. I marked them on the cork also.



For the left-hand side of the lower level, I soldered the railjoiners to the two pieces of 3-foot flextrack before bending it in shape. I then covered the cork with a thin layer of construction adhesive, placed the track on the adhesive, and weighted it down with clamps and metal weights. It didn't take very long to dry, but I left the clamps on there overnight.



The next photo shows the other exit out of the lower level tunnel. This was a third piece of about two feet of flextrack soldered to the other two pieces. In the foreground you can see the pen lines indicating the tunnel portal locations, and you can clearly see how far back I set the flextrack.