. The Street railway journal . a jib crane mounted on a flat car and operated by a donkey en-gine (Fig. 17), 140 poles being set in the holes by this meansone day in ninety minutes, the derrick car being pushed by asteam locomotive. The No. 0000 grooved trolley wire is hungby cap and cone insulators from 10-ft. brackets of the OhioBrass Companys manufacture, the wire being 22 ft. above the. FIG. CITY FILL AND OLD TRESTLE AS CUT OFF Street FIG. 12.—DETAILS OF TIMBER TRESTLE ON THE OREGONCITY LINE the center of the deepest bents. Some difficulty was expe-rienced in driving
. The Street railway journal . a jib crane mounted on a flat car and operated by a donkey en-gine (Fig. 17), 140 poles being set in the holes by this meansone day in ninety minutes, the derrick car being pushed by asteam locomotive. The No. 0000 grooved trolley wire is hungby cap and cone insulators from 10-ft. brackets of the OhioBrass Companys manufacture, the wire being 22 ft. above the. FIG. CITY FILL AND OLD TRESTLE AS CUT OFF Street FIG. 12.—DETAILS OF TIMBER TRESTLE ON THE OREGONCITY LINE the center of the deepest bents. Some difficulty was expe-rienced in driving the piles, as the material on the banks wasa cement gravel, while that in the bed of the stream was a blueclay that cracked easily. No shoes were used, all the pilesbeing driven with square ends by means of a 3800-lb. piles are of excellent quality, and were cuton land adjacent to the track. It took buttwenty-six days to drive the 216 piles, cut themoff, put on the caps and sway-brace about halfof them. The trestles across the North andSouth Forks of Deep Creek are, respectively,60 ft. and 70 ft. high, and were constructed in asimilar manner. An interesting piece of special work is thecrossing placed at the intersection of theSpring Water line with the double-track Ore-gon City line. The single track is on a and the double track has a curvature of5 degs. Joi
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
