New tunnel through range of mountains in western Washington will be longest railroad tunnel in America and fifth longest in world; it will be single-track tunnel, concrete lined, with clear width of 16 ft. and height of 20 ft. 10 in. above top of rail; triangulation surveys; method of attack; compressor and power plant; ventilation; drilling; mucking and hauling; record progress on bonus system.


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    Title :

    The new cascade eight-mile tunnel for the Great Northern railway


    Additional title:

    West. Constr. News


    Published in:

    Publication date :

    1927


    Size :

    7 pages


    Remarks:

    14 Figs.


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Keywords :



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