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 241
00=$7U4 Barrel per Un ft. Concretee.lyds. @$8.0O=$48.8 Steel 240 lbs. @ .04= _9^ $58.4 Length for 20 ft. Baiik=32 feet. Area = 161 sq. ft. Cost = $2570. the thickness of the culvert top. Culverts similar tothis have been used by the Illinois Central RaihvayCompany. Figure 51 is a concrete box…
Bridges, Concrete · Culverts
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
