Construction of final section of six lane Schuylkill Expressway in Philadelphia; expressway passes under Broad Street and two-track subway in 46 ft depth under street level; installation of temporary and permanent supports for subway roof, 7 ft of fill above roof, and live loads of street traffic; expressway section is flanked by concrete retaining walls.


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    Title :

    Highway burrows beneath subway tracks


    Additional title:

    Eng News -- Rec


    Published in:

    Publication date :

    1960


    Size :

    3 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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