Engineering and Contracting . an additional story at thesouth end of the building extending 176 ft. on State St. ers, 14 concrete columns and in the construction workwas used ofer 13 tons of reinforcing steel rods, many ofthem 28 £t. long, and about 40,000 ft. B. M. of lumber forthe forms. The concrete is a standard 1:2:4 mix, thecoarser aggregate being crushed limestone screened to aVo-in. mesh. Due to the excellent facilities for handling the materialthis work has proceeded very rapidly and with apparentlylittle more difliculty in handling the concrete than whenmixed at ground level. 82 CONV
Engineering and Contracting . an additional story at thesouth end of the building extending 176 ft. on State St. ers, 14 concrete columns and in the construction workwas used ofer 13 tons of reinforcing steel rods, many ofthem 28 £t. long, and about 40,000 ft. B. M. of lumber forthe forms. The concrete is a standard 1:2:4 mix, thecoarser aggregate being crushed limestone screened to aVo-in. mesh. Due to the excellent facilities for handling the materialthis work has proceeded very rapidly and with apparentlylittle more difliculty in handling the concrete than whenmixed at ground level. 82 CONVEYING CONCRETE BY MOTOR TRUCK. Contributed by Harold B. Kitchener, Superintendent of Construction,]ieti-oil-Superior High Level Bridge, Cleveland. O. The concrete for the west end of the Detroit-SuperiorHigh Level Bridge is being conveyed from the main mix-ing plant on the east side of the Cuyahoga River, a dis-tance of a quarter of a mile, in the bodies of motor White and Kelly-Springfield trucks of five ton ca-. ENGINEERINGAND CONTRACTING COSTS OF HOSPITAL BUILDINGS. Costs of hospital buildings are given by 0. H. Bartinein a paper read before the American Hospital Associa-tion. The following data are summarized from detailedtabulations. For 22 buildings the building and equip-ment costs per cubic foot were as follows: Per cu. ft. Item. Ct. Total building Heatinsr and ventilating Electric system lilectric fixtures Plumbing Kefiigeration 1-2 Vacuum cleaner system -2 Elevators *? Kitchen equipment O-^ Power plant *?^ The segregated building costs for 13 hospitals wereper cubic foot as follows: Per cu. ft. Item. ? Ct. Kxcavation Masonry l-j Structural steel J-S Carpentry Roofing l-O Glass and glazing Skvlights and sheet metal l-l Painting J-o Lathing and plastering 1-23 Composition flooring 0-8 Tiles, mosaics and marbles Hardware ^-^ Cast iron Total «-2 In determining cubical contents the author states:Measurements should be
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