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Knight's Mechanical Encyclopedia (ed. Knight), T. (search)
rinding the coping of the pier. The bridge contains 9,480 tons of wrought-iron, 1,988 tons of cast iron, and 1,500,000 cubic feet of masonry. Its cost was about $3,000,000. It was first crossed by a railway train, March 1, 1850. Some other data are given under bridge (which see). The Victoria tubular bridge at Montreal, forming a part of the Grand Trunk Railway of Canada, was designed by Stephenson, and built under his direction by James Hodges of Montreal. It was completed in December, 1859, and opened for travel August 25, 1860. Broom-handle lathe. The total length of this immense structure is only 176 feet less than two miles; it is supported upon two abutments and 24 piers, having 25 spans of tubing, the center one of which is 330, and each of the others 242 feet long. The hight of the central tube is 60 feet above the summer level of the water. The bridge has a slight descent from the center toward each end. The two center piers are 24 feet wide, the others bei