. The Street railway journal . STANDARD STRAIGHT LINEBRACKET CONSTRUCTION INDIANAPOLIS NORTHERN TRACTION CO. FIG. 2.—STANDARD STRAIGHT LINE CONSTRUCTION where the ballast is continued over the culvert or bridge, it isnot so marked, and there is not the difficulty in keeping thetrack support at the ends of the bridges in an exact level withthe support offered by the rigid bridge structure. In the archshown in Fig. 6, the concrete is reinforced by corrugated squaresteel rods of the Johnson type. These rods are placed about1 ft. apart, as shown in the cross section, and are bent to givereinforcem
. The Street railway journal . STANDARD STRAIGHT LINEBRACKET CONSTRUCTION INDIANAPOLIS NORTHERN TRACTION CO. FIG. 2.—STANDARD STRAIGHT LINE CONSTRUCTION where the ballast is continued over the culvert or bridge, it isnot so marked, and there is not the difficulty in keeping thetrack support at the ends of the bridges in an exact level withthe support offered by the rigid bridge structure. In the archshown in Fig. 6, the concrete is reinforced by corrugated squaresteel rods of the Johnson type. These rods are placed about1 ft. apart, as shown in the cross section, and are bent to givereinforcement at the proper point, as shown in the longitudinalsection. The standard abutment for plate-girder bridges is shown inFig. 7. Fig. 8 shows a short span of track laid on I-beamswhich rest on such concrete abutments. Fig. 9 shows a some-what longer type of span on plate girders with concrete abut- io66 STREET RAILWAY JOURNAL. [Vol. XXIV. No. 25. 54 Span wire Siding &t^n - See details. SEC B B S- 6 PIN TELEPHONE AND FEEDER CROSS ARM Sec a a
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
