San Francisco : Architect and Engineer, Inc · leaf 315
as, therekeeping the subsurface material in a sat-urated condition through subsurface drain-age. Bordering this area and extendingbayward from the original shore line lies awide area of marine clay and marsh con-taining a great number of wooden piles andoverlaid by a miscellany of sand, rock,wood,… … PLATE III gineers problem in San Francisco is notlimited to excavation and spoil dispositionas in many cities, but is far more compli-cated because: (1 ) rock lies far below thesurface of the greater portion of the build-ing space: (2) ground water may or maynot be found in detrimental amounts…
Architecture · Building
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