ach side of the river. The borings of a mass of solid masonry, were constructed on either cantilever extensions of the floor beams. The lack for the Manhattan Bridge piers showed the surface of shore, at a distance of 930 feet from the towers, and the underlying rock to be fairly level, and hence… … late years, however, the bridge has three longitudinal sections, and in been subjected to careful and con- this chamber the excavation was Each cable consists of 37 strands in each of which is 250 wires. tinued scrutiny by competent engi- done by a large army of "ground neers; and, so long as this…
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