Pennsylvania Railroad Archives - Interlocking Charts

Bayard, OH Rev. 3-19-1962 (PRR Bayard Interlocking Chart Rev 3-19-1962.pdf) 5.865MB

Lake Region Cleveland District c.1-1-1957 (PRR Cleveland District Interlocking Charts c1957.pdf) 10.411MB

Pittsburgh Division CM Interlocking East Liberty, PA Sheet #21 10-8-1946 copy (PRR Pgh Yard Maps.pdf) 9.462MB
Pittsburgh Division BU, UF, US & PH Interlockings Sheet #23 10-3-1947 copy (PRR Pgh Yard Maps.pdf) 9.462MB

Ft. Wayne Rev. 1-1-1953 (PRR Ft. Wayne Interlocking Chart 5-3-1930.pdf)

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This page updated 10-26-2011