. The Street railway journal . r the track thus delayed less than a day, certainly a remarkably short timefor such a difficult piece of work. Fig. 13 shows the fill in itspresent condition. The rest of the trestle will be removed asopportunity offers. On the Cazadero line the track crosses four good sizedcreeks, all of which flow through deep canyons. These streamsare bridged by pile trestles which are remarkable for theirheight. That across Eagle Creek, illustrated in Figs. 14 and15, is probably the highest bridge ever built with single structure is 760 ft. long and crosses the stre
. The Street railway journal . r the track thus delayed less than a day, certainly a remarkably short timefor such a difficult piece of work. Fig. 13 shows the fill in itspresent condition. The rest of the trestle will be removed asopportunity offers. On the Cazadero line the track crosses four good sizedcreeks, all of which flow through deep canyons. These streamsare bridged by pile trestles which are remarkable for theirheight. That across Eagle Creek, illustrated in Figs. 14 and15, is probably the highest bridge ever built with single structure is 760 ft. long and crosses the stream 95 ft. above 734 STREET RAILWAY JOURNAL. [Vol. XXIV. No. 17. the water. The longest pile is 115 ft. in length, and all areset from 12 ft. to 15 ft. in the ground. Fig. 16 illustrates theconstruction and shows the design of the four-pile bents usedon the banks and the six-pile and seven-pile bents in the deepportion of the bridge. The bents are spaced 16-ft. it was deemed necessary, a seventh pile was driven in. 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
Size: 1704px × 1467px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
