The Pennsylvania Middle Division in HO Scale has declared WALL Interlocking operational as of today, about two weeks sooner than planned. I got on a roll and got all of the Tortoise machines wired and stationary decoders programmed and tested.
WALL, which will be hidden (but accessible for maintenance), is the entry to Harrisburg/Enola staging at the east end of the railroad. Located just east of the Lewistown station, WALL takes the four track main line to 20 tracks.
The view above is eastbound, with the Lewistown station at lower left. The view below is westbound, with Harrisburg/Enola staging at the bottom.
Altoona Staging was slated for completion this quarter, but is being delayed for concurrent construction with JACKS interlocking next quarter. However, the stairway underpass will be completed this quarter instead of next quarter.
More photos available here.