. The Street railway journal . he concrete was allowed to setwell before the track was used. In unpaved streets a is employed. The ties, which are 7 ft, long, have6 ins., of gravel underneath them. In all track A. S. C. E. angle-bar splices are used. Bondsare largely of the pin terminal type. Cross-bonds are 1000ft. apart. Track centers of double track are 9 ft. apart orthe distance between the gage line is 5 ft. Switches andcurves are of standard construction with hardened method of constructing steam-road crossings in SanAntonio is of special interest. Upon a 2-ft. be
. The Street railway journal . he concrete was allowed to setwell before the track was used. In unpaved streets a is employed. The ties, which are 7 ft, long, have6 ins., of gravel underneath them. In all track A. S. C. E. angle-bar splices are used. Bondsare largely of the pin terminal type. Cross-bonds are 1000ft. apart. Track centers of double track are 9 ft. apart orthe distance between the gage line is 5 ft. Switches andcurves are of standard construction with hardened method of constructing steam-road crossings in SanAntonio is of special interest. Upon a 2-ft. bed of gravel8-in. x 12-in. ties are placed crosswise of the steam-roadtrack and as close together as they can be put. This graveland tie foundation is used in preference to concrete becauseit is believed that concrete makes a too solid crossing. In-stead of the usual gusset or corner plates the steam-roadrails rest on a fy-in. steel plate 10 ft. long and about 15 The rail spikes are driven through spike holes in the A. SECTION HOUSTON CONSTRUCTION FOR g-IN. GIRDER RAIL IN BRICK-PAVED STREETS plate. J. J. King, general superintendent of the system,had charge of the reconstruction of the track. HOUSTON The spongy nature of the soil in Houston necessitatesa rather peculiar type of track construction in unpavedstreets. Where the track is laid in the usual manner thespongy earth in a very short time works up through thegravel and the track gradually sinks. To prevent this thetrack is laid in a trough of pecky cypress. This wood willnot rot or decay so long as it is kept damp. In track con- struction i-in. material iu various widths and lengths is costs about per 1000 ft. at the mills, or about $700per mile of track. In the track construction after the ex^„-vation has been made, the boards arre thrown into the bot-tom to make a floor about 9 ft. wide comparatively free fromlarge openings. However, no attempt is made to make closefits, as openings an inch or t
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
