Pennsylvania Railroad Archives - Standard Plans

70310-A Standpipe Pit, Drip Basin and Trolley Switch Interlock Mechanism Pit 11-1948 (PRR 70310-A 11-1948.pdf)

78316-C Stop Sign for Crossing Watchmen, Warning Disc for Track Gang Watchmen 11-1958 (PRR 78316-C 11-1958.pdf)

79320-B Concrete and Steel Trestle 5-1929 (PRR 79320-B 5-1929.pdf)

See Also

Rob Schoenberg's PRR Standard Plans page http://prr.railfan.net/standards/standards.cgi

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This page updated 6-8-2013