. Railway track and track work . Fig. -Southern Pacific Ry. Southern Pacific Ry. (Fig. 8).—The single track roadbed is 16 ft. wide, in-creased to 18 ft. in cuts where rainfall is heavy, and 15 ft. is allowed for ex- ROADBED CONSTRUCTION. 15 isting high banks. Stone ballast is shouldered out 6 ins. beyond the ties;it is 15 ins. deep (below top of tie) at the middle and 18 ins. at the toe, 4 ins. from the end of 8-ft. ties, beyond which the roadbed slopes 6 to 1 to theedge, of the cut. Gravel ballast is shouldered out 6 ins. level with bottom oftie and filled in 3 ins. deep over the center
. Railway track and track work . Fig. -Southern Pacific Ry. Southern Pacific Ry. (Fig. 8).—The single track roadbed is 16 ft. wide, in-creased to 18 ft. in cuts where rainfall is heavy, and 15 ft. is allowed for ex- ROADBED CONSTRUCTION. 15 isting high banks. Stone ballast is shouldered out 6 ins. beyond the ties;it is 15 ins. deep (below top of tie) at the middle and 18 ins. at the toe, 4 ins. from the end of 8-ft. ties, beyond which the roadbed slopes 6 to 1 to theedge, of the cut. Gravel ballast is shouldered out 6 ins. level with bottom oftie and filled in 3 ins. deep over the center of the tie, the depth being 15ins. at the middle and 17 ins. at the toe. Earth is filled in 3 ins. over the 80-. -->k- IJO l£-6p°71e 777777777^^-1 Ear+h. Half Cut
Size: 1494px × 1672px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
