Lots of wall-cutting this past weekend. I've now cut holes thru the closet, bathroom, and laundry room. It's kinda scary cutting walls in otherwise nicely-complete rooms, but it was the plan from the beginning of this layout project. Here's the exit from Ridgway yard - both levels.

Here's the same hole, looking out from bathroom closet into the Ridgway yard. The upper level will have 5 tracks, while the lower level is the main sneaking under the yard.




With another helper in hiding here, this is looking toward Ridgway and the bathroom closet from inside the bathroom - looking thru both walls.




Another helper shot of the opening!





Here's a shot looking thru all 3 openings, from inside the laundry room, into the bathroom, then the closet, and finally into Ridgway.





And a closeup from the laundry room into the bathroom.




Getting the line behind the water-heater and the furnance is going to be quite a trick... I'm still not sure how to do it. That section will need tracks on two levels, and slight curves in the most inaccesible spots (see the track plan). Luckily my kids are still small enough to fit back there - just gotta teach them some additional construction skills. Perhaps I can build the unit as a couple a bridges, and just slide them in there.