The Architect & engineer of California and the Pacific Coast . GJKIHKS IJOHHLLHI) TO OLD fOOIIXG Underpinning the New York Post Office* HE twu - track ^^^PH^^ ^^^-T^s t r u c t u r e otsection 48, of the duals u b vv a y system,New York, formspart of the line con-necting the firstsubway in Brook-lyn to the Seventhavenue subwaj inNew York and])asses u n d e r theIederal Post Officebuilding on Broad-way, between ParkRow and Mailstreet, r u n n i n gnearly ])arallel andadjacent t(i .M a i 1street. The subway, which has a rectangular steel and concrete cross-sectionabout 33 fee
The Architect & engineer of California and the Pacific Coast . GJKIHKS IJOHHLLHI) TO OLD fOOIIXG Underpinning the New York Post Office* HE twu - track ^^^PH^^ ^^^-T^s t r u c t u r e otsection 48, of the duals u b vv a y system,New York, formspart of the line con-necting the firstsubway in Brook-lyn to the Seventhavenue subwaj inNew York and])asses u n d e r theIederal Post Officebuilding on Broad-way, between ParkRow and Mailstreet, r u n n i n gnearly ])arallel andadjacent t(i .M a i 1street. The subway, which has a rectangular steel and concrete cross-sectionabout 33 feet wide and 20 feet high in regular section, ])asses under thesubway from West Broadway to William street and extends for al)out 270feet under the Post Office building at a subgrade of ai)i)ro.\imately 50 to60 feet below street surface and from 14 to 24 feet below original groundwater level, which, however, had been reduced about 12 feet by previoussubway operations and other recent in the same locality. Thewater level descended still more during
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Keywords: ., bookcentury1900, bookdecade1900, booksub, booksubjectarchitecture
