. Our iron roads: their history, construction and administration . i98 OUR IRON ROADS. the Thames at Maidenhead. It is composed of a central pierand two main arches, flanked at either end by four openings,for the passage of the flood water. The main arches arcelliptical, 130 feet span, and 24 feet rise. The land arches are m .imm. 1, im,,,.^,*.;.. WINKWELL SKEW BRIDGE. semicircles of 28 feet diameter. The central pier stands in themiddle of the river. The foundations of the bridge rest on ahard pebble conglomerate, overlying chalk, and covered up by

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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1883