17-mi expressway and river tunnel is scheduled for completion in 1957 to take traffic through city and under its harbor; tunnel is being laid by open trench method, prefabricated tunnel sections are sunk in trench dredged in river bed and sections are joined together under water; each of tunnel's 21 twin-tube sections is 300 ft long and is built in shipyards and launched like ships.


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    Titel :

    Baltimore's harbor tunnel


    Weitere Titelangaben:

    Am Highways


    Beteiligte:
    LeViness, C.T. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1956


    Format / Umfang :

    2 pages


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


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