ual rise of the the arch to the superstructure at a distance of 148 feet towers, the four towers at the center of the bridge arch, the ingenious method of erection, and the ex- and 100 feet from the crown. The width of the floor tremely picturesque topography of the site, which resting upon a… … APPROACH VIADUCT. AT NAST soca } ¥ TEMPORARY ROADWAY BELOW. which has recently been opened across the gorge of is given to all the towers throughout the bridge. The proposed a bridge 1,584 feet in length, which was to be the Niagara River. The Mtingsten arch has a rise of carried upon nine braced…
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