Gents,
I've posted this many times before.
If you take a comparison look at the roundhouse Pre-Broad Gauge and post broad gauge, you will see that:
1. The turntable in front of it is gone and was replaced by a series of turnouts.
2. There were
NO stalls removed from the original Roundhouse.
When the extension was built on the front of the existing Roundhouse structure, only three stall doors were built. If you look at the photos posted earlier in this thread, you will see that there is a short panel built between the existing doors.
Why is this? Simple, because of the way that a roundhouse is built, the more that you extend the front of it, the narrower it gets, thus no room for the existing doors. So, when the C&S built the extension on the roundhouse, it had to build wider doors for the broad gauge equipment on a narrower front.
The only "Removal" of any of the existing 3' gauge roundhouse stalls happened in the mind of railfans who merely count the door openings and don't take in to accounts certain facts of construction.
I repeat, there were no stalls removed and the entire 1909 3' gauge roundhouse still exists behind that broad gauge extension built on the front of the building.
Rick