On Southern Pacific, which has many miles of lines in mountainous country, drainage tunnels for intercepting and disposing of troublesome water have been used for more than 30 yr as means of controlling unstable hillsides; tunnel now under construction will be approximately 2000 ft long when completed.


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    Titel :

    Southern Pacific controls slides with drainage tunnels


    Weitere Titelangaben:

    Ry Eng Maintenance


    Erschienen in:

    Erscheinungsdatum :

    1945


    Anmerkungen:

    Constructional details, Illustrations


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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