. American engineer and railroad journal . ion of anumber of eye-bars, which were made by the Passaic RollingMill Company. The total cost of the bridge was $153,362. A Japanese Mountain Railroad.—A new mountain rail-road, to connect Karuisawa with Yokohama, is under construc-tion over the Usui Mountain in Japan. The road is mileslong, and has 21 tunnels, the total length of which is 12,200 heaviest grades are 352 ft. to the mile, and the line will beworked on the Abt rack-rail system. A Swedish Railwray Project One Hundred Years Ago.—Close upon 40 years before Stephensons victory, a
. American engineer and railroad journal . ion of anumber of eye-bars, which were made by the Passaic RollingMill Company. The total cost of the bridge was $153,362. A Japanese Mountain Railroad.—A new mountain rail-road, to connect Karuisawa with Yokohama, is under construc-tion over the Usui Mountain in Japan. The road is mileslong, and has 21 tunnels, the total length of which is 12,200 heaviest grades are 352 ft. to the mile, and the line will beworked on the Abt rack-rail system. A Swedish Railwray Project One Hundred Years Ago.—Close upon 40 years before Stephensons victory, a Swedish en-gineer, Karl Hogstrom by name, not only constructed a loco-motive on similar lines to the one of Trevithick and Vivian,but also conceived a plan of a regular railroad. His firstnotion was that his locomotive should be used on ordinaryroads, but soon realizing the inburniountable difficulties attend-ing this style of locomotion, he, in the year 1791, brought ouihis railroad scheme. The rails were to be of cast iron and per-. THE MARENT GULCH VIADUCT. dry climate of Montana to retain so important a bridge in wood,where it was liable at any time to be destroyed by fire and tointerrupt seriously the traffic of the road. The general plan is shown in the accompanying viaduct consists of five spans, each 116 ft. 8 in. long, twotowers, each measuring 23 ft. 4 in. on top, and four girder spansof 30 ft. each, making the total length of the structure 796 ft. 8in. The total height from the top of the masonry to the top ofthe stringer at the highest side of the central tower is 201 ft. 9in. The viaduct is straight, but is built on a grade of percent. The substructure consists of two small abutments and 24small piers. They are generally founded upon rock, but in two fectly smooth, and in order to prevent derailment the wheelswere to have a projecting edge. Convinced of the insufficiencyof friction between the smooth wheels and rails for the pro-pelling o
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
