. The street railway review . CONCRETK A.\I> 12-FT. AT TRKEK. the accompanying illustrations from which it will be seen theswitch has a lead of 81 ft. II in. The ties under this special workarc spaced 20 in. between centers and split switches and frogs,each 15 ft. long, are used. The guard rails are 10 ft. in length andthe switch stands arc provided with spring connecting rods. Allof the rail bonds were supplied by the .Vmerican Wire are seven bridges along the route, all of which arc built ofsteel and rest upon concrete piers. These bridges were desig
. The street railway review . CONCRETK A.\I> 12-FT. AT TRKEK. the accompanying illustrations from which it will be seen theswitch has a lead of 81 ft. II in. The ties under this special workarc spaced 20 in. between centers and split switches and frogs,each 15 ft. long, are used. The guard rails are 10 ft. in length andthe switch stands arc provided with spring connecting rods. Allof the rail bonds were supplied by the .Vmerican Wire are seven bridges along the route, all of which arc built ofsteel and rest upon concrete piers. These bridges were designedto be loaded with a 40-ton car and a 40-ton trailer and werecalculated with a factor of safety of four. ~ The overhead construction has Iwen built in the same sub-stantial style which characterizes the track work. The overheadmaterial was furnished ,by the Ohio Brass Co., the trolley wires. CROSSING OVER Tlt-M nK KKIK & R. K. 57 ft. above the high water line. The work of filling in this trestlehas been commenced and this fill when completed will contain 160,-000 cu. yd. of earth. There are 13 railroad crossings along the route of the WesternOhio Railway, 10 of which are at grade, 2 are overhead and l un-dergrade. All of the grade crossings arc provided with derailers,most of which are of the style illustrated in the accompanying dia- and copper feeders by the John A. Roeblings Sons Co., and thealuminum high tension transmission lines by the Pittsburg Reduc-tion Co. The poles for the overhead work are all of Michigancedar, 7 in. in diameter at the top and 35 and 45 ft. long. Oncurves the poles have been set unusually close together and arethoroughly braced and guyed where necessary with a view tomaking the overhead lines very substantial so as to meet all the Mar. 20, 1904.] STREET RAILWAY REVIEW. 139 requirements of high speed service of heavy cars
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