Thorpe, William Henry · London, E. & F.N. Spon, limited; New York, Spon & Chamberlain · leaf 96
cast-iron arched structure, ofwhich the author made a very complete examination. This bridge, built in 1839, and carrying two lines ofrailway, consisted of three spans, 100 feet each, of 10 feetrise, made up of four inner and two outer ribs, each ribbeing in three nearly equal parts; the floor was… … 82 THE ANATOMY OF BRIDGEWORK. stretching from outer rib to outer rib in the neighbourhoodof the rib joints, which were simple butts without bolts orany equivalent means of connection. The floor was, how-ever, braced in the horizontal plane, and the structure wasalso braced over the masonry piers.…
Bridges
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