ssity for|its own line atan elevation of many feet above it. This in the center. They are sustained by being anchored low original cost of roads has necessitated many ex-|can be seen in the background, and in the preceding back, or by balancing, or by both. Generally the two pedients, some of which… … highest railway bridge in the world, the trains passing illustration, Fig. Fig. 1.—THE NEW PORTAGE VIADUCT, N. Y., LAKE ERIE & WESTERN RR. over it 276 feet above the river bed. Each iron pier is 6, an interesting regarded as triumphs of engineering. In the mountainous regions of the West the…
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