Updated 11/20/2009...
With the help of forum member Mike CT, I was able to rework my wiring diagram. The layout will now use a Block Power Controller (BPC) to control blocks 5 (Coal Mine Spur), 6 (Weirton Junction Yard), 7 (Hidden Storage Yard), and 8 (Weirton Steel Yard). These blocks will be powered by a Lionel PowerHouse 180. The remaining blocks will be controlled by a TPC 400 (either conventional or command) which is fed by a second PowerHouse 180. The revised diagram is shown in Photo 4.
I am in the middle of changing the wiring right now.
George
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