Elimination of tunnels on Southern Pacific lines by excavating through overburden to grade was necessary in order to remove restrictive clearances; grading done by railroads own forces; cost figures demonstrated economy of methods; other tunnels eliminated by relocation of main line.


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    Titel :

    Railroad tunnels "daylighted" by company forces


    Weitere Titelangaben:

    Civ Eng (NY)


    Beteiligte:
    Mayo, E.E. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1946


    Format / Umfang :

    4 pages


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


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