I completed the initial “empire” in 2020 and uploaded my first video in March, 2021. Since then, I’ve added a 35 foot (~ 1/4 scale mile) elevated siding flanked with #8 turnouts. One of those T/Os changed the angle of a 90 degree turn. The re-routed turn created a longer “S” turn. That was realized half way through the addition and totally unplanned. The longer re-routed S turn created a need for a new short bridge. I beleive my solution to this new bridge is unique in G scale railroading. I’ve also upgraded a simple steel white plate bridge, deliberately obscured in my previous videos, to aan aluminum girder bridge which is in the final scene.
Model railroading, in all scales, is never truly finished!