Calif Highways and Pub Works v 32 n 5-6 May-June 1953 p 27-33; World Construction v 6 n 5 Sept-Oct 1953 p 43-4, 46-7. Gaviota Gorge Tunnel on U S Route 101 in Santa Barbara County, Calif, is part of project to provide limited access freeway northward from Gaviota for 8.3 mi; faulted, shattered rock was bored through to avoid deep cut and long dispersal haul; tunnel bore is semicircular above spring line, with 17 ft 7 1/2 in. radius; concrete linings 36 in. in timber supported sections and 24 in. in steel supported section. (See also Roads and Streets v 96 n 3 Mar 1953 p 73-7; World Construction v 6 n 5 Sept-Oct 1953 p 43-4, 46-7)


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    Title :

    Tunnelling through canyon wall


    Additional title:

    California Highways Public Works


    Contributors:
    Witte, J.E. (author)

    Published in:

    Publication date :

    1953


    Size :

    7 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English