Chicago : Engineering and Contracting Pub. Co. · leaf 572
inhorizontal direction, forming the beam Cx, theupward surface of which is the bridge seat a.From Ci the wall is carried unward formingthe back wall The ends of beam Ci rest onthe side wall a, or on an enlargement thereofC:,, and the front edge of the beam Ci restsupon the front curtain wall c?. It… … j Uni form Bearing* / 75 Tons per 5a Ft. Section at <£ of Track. = ffs IP 15 eo <?5 30 35 Height of abutment, - b a se of railto ground level at toe of slope. Type. C, Fig. 27. Diagram Showing Costs of TypeC, Abutment. £4# a ■■ ■ . -c4 All hor\zontoi All vertical -WPP, r/:6 -Point X e-o■r-o
Buildings
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