. The Street railway journal . he sloping man are $ per day, and the total cost of the stone deliveredat the point at which it is used in the city is $.58 per cu. stone that is taken from the quarry one day is laid in thetrack as concrete the following morning. The tracks of the interurban systems are being ballastedwith 1 ft. of gravel under the ties. The company owns agravel pit consisting of six acres of gravel 60 ft. deep. Gravelis hauled to the point at which it is placed under the trackin much the same manner as stone is handled, and it is de-livered at a cost of $.27 per cu.
. The Street railway journal . he sloping man are $ per day, and the total cost of the stone deliveredat the point at which it is used in the city is $.58 per cu. stone that is taken from the quarry one day is laid in thetrack as concrete the following morning. The tracks of the interurban systems are being ballastedwith 1 ft. of gravel under the ties. The company owns agravel pit consisting of six acres of gravel 60 ft. deep. Gravelis hauled to the point at which it is placed under the trackin much the same manner as stone is handled, and it is de-livered at a cost of $.27 per cu. yd. CITY TRACK CONSTRUCTIONThe company has experimented with many kinds of citytrack construction, but at the present time that shown in is being followed wherever possible. The most notable December 22, 1906.] STREET RAILWAY JOURNAL. 1147 feature of this construction is the provision for the drainageof the track. Past experience in Detroit as well as in othercities has demonstrated the fact that city track, if not prop-. FIG. 10.—CONCRETE BED ON GRAVEL, AND TRACKS LAIDUPON THIS, IN THE DISTANCE erly drained, will not hold up, no matter how well built. Inthe construction shown in the drawing a 4-in. drain tile is runalong the center of the track a few inches below the lowerbed of gravel. At the summits and valleys this tile is runinto circular catch basins built of brick in the center of thetrack and provided with cast-iron manholes and covers. Thebasins, which are drained into city sewers through 8-in. sewerpipe, are large enough to permit a man to enter them in orderto flush out the connecting drains should they become 9 is a drawing of a cross-section of these catch drawing is reproduced only for the purpose of showing
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
