. The Street railway journal . out 4 miles of which is single track. Since nearly all streets in Auckland are from 40 ft. to 60 , the company has encountered no construction difficultiesin installing so large a proportion of double track. In fact,the clearance between such tracks is fully 6 ft., permitting theextensive use of center poles. Where single track is installedit is not placed in the center of the street, but provision is madefor the installation of another track alongside when increasedtraffic demands it. The rails are of the full-grooved type, are 6l/2 ins. high, andweigh 92
. The Street railway journal . out 4 miles of which is single track. Since nearly all streets in Auckland are from 40 ft. to 60 , the company has encountered no construction difficultiesin installing so large a proportion of double track. In fact,the clearance between such tracks is fully 6 ft., permitting theextensive use of center poles. Where single track is installedit is not placed in the center of the street, but provision is madefor the installation of another track alongside when increasedtraffic demands it. The rails are of the full-grooved type, are 6l/2 ins. high, andweigh 92 lbs. to the yard. They were rolled in standard lengthsof 37 ft., as it was found that this was the greatest length thatcould conveniently be shipped. Angle plates are used, and therail-joints are bonded with 0000 B. & S. copper bonds of theChicago type. The sub-construction used is concrete stringers,in which the rails are bedded to a depth of about 1 in., andwhich are 18 ins. wide by 9 ins. deep. All Auckland streets are. macadamized to a depth of 9 ins. throughout except QueenStreet, where 2 ins. of Neuchatel asphalt, laid on a bed of , is used for paving. In this street the concrete underthe pavement is made continuous with the deeper concreteunder the rails. As the rainfall in Auckland i$ excessive,amounting in some years to 60 ins. or more per annum, ar-rangements have been made for draining the track throughslots in the rail groove. These slots are connected throughnarrow culverts with the sewer rails were supplied by the LorainSteel Company and the special work isof the same companys guaranteed type. FEEDER CONDUITS The conduits for the feeder cables areof the Camp type, and have ducts vary-ing in number from one to twenty-four,several spare ducts having been laid forfurther extensions. The conduits are in-closed in concrete 4 ins. thick, and arerun into manholes about 90 yds. apart,except on curved track, where they areplaced closer together. Th
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
