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Concrete bridges and culverts, for both railroads and highways (1909)
Tyrrell, H. G. (Henry Grattan), b. 1867 · Chicago The M.C. Clarke publishing co. [etc.] · leaf 244
2 Portals:—Concrete 88 yds. (ft. $8.00 $701 Bfirrel per lin. ft.Concrete 8 yds. ^ $8.00 = $6t.O().steel 1015 lbs. ftt ••^15 = l-»-- Length for 20 ft. bank = 30 ft..\rea --- 250 s<i. ft. Cost t30!-U. Fig. 53. CONCRETE ClLIERTS AXD TRESTLES. 225 E span ]0 Back (if abntiiuMits hallci- one in… … 2 Portals:— Concrete 47 yds. @ 18.00 =Steel 1600 lbs. @ .04 = Barrel per ft. Concrete 3.1yds. (p: $8.00=— 170 lbs. @ .04 = Area = 92 sq. ft. Length forbank = 42 ft. Cost forbank, ^780. = $376 = 64$i4U =$24.8: 6.8 $31.620 ft.20 ft. y Oorro/n i 7~o f Tig. 54. 226 CONCRETE BRIDGES AND CULVERTS.Bridges, Concrete · Culverts
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
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