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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 239
2 Portals:—Concrete 74 yd8.@$8.00 =Steel 4720 lbs. (& .04^ Barrel per ft.Concrete 5.8 yds. (5 $8.no=Steel 515 lbs.@ .04= Length for 20 ft. bank:Area = 230 squareCost = $2930. $592 : 188 $780 =$46 4= 20.6$67.0= 32 ft.feet. rig. 49. CONCRETE CULVERTS AND TRESTLES. 221 and 20 feet wide. For an…Bridges, Concrete · Culverts
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
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