. Concrete bridges and culverts, for both railroads and highways . d per day 4 Carpenters paid per day Labor cost $ Material cost Total $ Concrete made entirely from sand and gravel at rail-road companys pit, without any broken stone. Other Common Culvert Forms. Figures 48 to 57inclusive, show other forms of culverts, and Table 220 CONCRETE BRIDGES AND CULVERTS XI contains their estimated quantities and the purpose of comparing these with others, thecosts have been estimated for lengths requiredunder a 20-foot embankment, and these costs aregiven in Fig
. Concrete bridges and culverts, for both railroads and highways . d per day 4 Carpenters paid per day Labor cost $ Material cost Total $ Concrete made entirely from sand and gravel at rail-road companys pit, without any broken stone. Other Common Culvert Forms. Figures 48 to 57inclusive, show other forms of culverts, and Table 220 CONCRETE BRIDGES AND CULVERTS XI contains their estimated quantities and the purpose of comparing these with others, thecosts have been estimated for lengths requiredunder a 20-foot embankment, and these costs aregiven in Figure 47, together with their correspond-ing numbers. They vary in cost from 26 to 36 centsper square foot of section area, for each lineal footof culvert. Figure 48 is a reinforced concrete box culvert 12feet high and 15 feet wide, with rod reinforcement,similar to the new single box slab culvert. For solarge a section area, the slab tjT)e is not economical. Figure 49 is a reinforced concrete box culvert ofcombined beam and slab construction, 12 feet high f^ fr J.
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Keywords: ., bookcentury1900, bookdecade1900, bookidconcretebrid, bookyear1909
