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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    Title :

    Southern Pacific controls slides with drainage tunnels


    Additional title:

    Ry Eng Maintenance


    Published in:

    Publication date :

    1945


    Remarks:

    Constructional details, Illustrations


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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