Southern District

“Pacific Electric Moves Electric Interlocking Machine ‘Ensemble'” (1926)

Posted on: July 2, 2017 by Pacific Electric 1 Comment

From a 1926-vintage issue of Railway Signaling Magazine comes this reprint (courtesy Google) by Charles H. Lay, General Construction Foreman for the PE, entitled" "Pacific Electric Moves Electric Interlocking Machine 'Ensemble'". It shows the physical relocation of the interlocking machine from the old wayside tower to the steel bridge spanning the Four Tracks.

Click here to download the reprint in PDF format.

One Response

  1. Bob Davis

    July 9, 2017

    The article explains why Amoco Tower had to be relocated from a typical interlocking tower to an addition on a signal bridge. This has probably puzzled many PE observers who were curious about the unusual structure. It might even be seen as a harbinger of things to come, with railway facilities being pre-empted by street and highway construction.


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