. The Street railway journal . verage descending grade of] .35 per cent. The grade of the line is undulating, owingto the nature of the country traversed; hence, there is amultiplication of rises and falls more than the difference inelevations of the highest and lowest points shows. Shanes-ville summit, 4 miles west of Boyertown, is 380 ft. aboveboth the Boyertown and Carsonia Park ends of the line byactual elevation. A turnout is located at this point, and ashort stop is usually made there to afford passengers anopportunity to enjoy a splendid view of the surroundingcountry. The roadbed const
. The Street railway journal . verage descending grade of] .35 per cent. The grade of the line is undulating, owingto the nature of the country traversed; hence, there is amultiplication of rises and falls more than the difference inelevations of the highest and lowest points shows. Shanes-ville summit, 4 miles west of Boyertown, is 380 ft. aboveboth the Boyertown and Carsonia Park ends of the line byactual elevation. A turnout is located at this point, and ashort stop is usually made there to afford passengers anopportunity to enjoy a splendid view of the surroundingcountry. The roadbed construction naturally involved numerouscuts and a great deal of bridge work. The cuts are at least15 ft. wide, with ditches along the side of the track to keepthe water from the ends of the ties. The embankmentsare wide enough to support the ballast under the ties andleave room on either side for working about the car, shouldany repairs be required for the machinery. A minimumwidth of 13 ft. is maintained upon all embankments. The. TRESTLEWORK NEAR READING slopes of both cuts and embankments are Hat enough toresist the action of the rain which washes down the moun-tain sides in torrents at certain seasons of the year. There are twenty-three iron bridges on the line, twenty-two wooden bridges and three trestle works. All thebridges over 15 ft. long are of eye-beam construction withangle braces. The total length of the iron bridges is 660ft., the longest being 45 ft. and the shortest 18 ft. Thetotal length of the wooden bridges is 397 ft.; the longest ofthese is 98 ft., and is made up of eight spans, and theshortest is 10 ft. The principal trestle is 924 ft. long. Thisis the first one crossed after leaving Reading, and the gen-eral character of the construction may be judged from thisexample, which is illustrated in the accompanying next one is 385 ft., and the third 188 ft. In all thiswork provision was made not alone for the weight to becarried over the bridges and trestl
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
