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Show LONGEST RAIL BRIDGE y A Tiritish firm of engineers recently recent-ly completed building tlie longest railway bridge in the world. It Is 1 1 le Lower Znnibcsl bridge, erected to provide uninterrupted railway com-immication com-immication between Beira and Lake Nynsn, In East Africa, and Is ll,0."iO feet, or nearly two miles and a quarter, quar-ter, in length. There are six approach ap-proach spans and 33 main spans, the latter being supported by concrete con-crete piers sunk in the bed of the river, or on mass concrete bases founded on the rock at the river liank. Hell Gate bridge, in New York is nearly 2,000 feet longer than the Lower Zambesi bridge, but 10,-t!t8 10,-t!t8 feet of this is over land and only a total of 2,735 feet is over three separate branches of the East river, whereas the entire length of the Lower Zambesi bridge is over the water during the winter season. |