. Our iron roads: their history, construction and administration . pt the busy navigation of the river. Runcornviaduct consists of thirty-three arches : one of 20 feet span,twenty-nine of 40 feet span, and three of 61 feet. The centralpart of the bridge that stretches over the navigable channel CONWAY TUBULAR BRIDGE. 205 rests on four massive castellated piers, 300 feet apart, thatsink into the bed of the river, and carry the girders 80 feetabove the water. Ten other arches form the west bankviaduct; this leads to an embankment ; and the line is nowcontinued upon the Ditton viaduct of forty-ni
. Our iron roads: their history, construction and administration . pt the busy navigation of the river. Runcornviaduct consists of thirty-three arches : one of 20 feet span,twenty-nine of 40 feet span, and three of 61 feet. The centralpart of the bridge that stretches over the navigable channel CONWAY TUBULAR BRIDGE. 205 rests on four massive castellated piers, 300 feet apart, thatsink into the bed of the river, and carry the girders 80 feetabove the water. Ten other arches form the west bankviaduct; this leads to an embankment ; and the line is nowcontinued upon the Ditton viaduct of forty-nine arches. Theappearance of the Viaduct, as it carries the passenger over theriver, is very striking. A footway on each side of the viaductsupersedes the old and tedious ferry. The Conway tubular bridge, in North Wales, has deservedlyattracted much attention. Passengers accustomed to travellingby the magnificent service of the London and North Westernmay remember with interest how people used sometimes tofare at this spot: On Christmas Day, 1806, says the Annual. BRIDGE OVER THE AVON, NEAR BATH. Register, owing to a heavy swell in the river Conway, the boatconveying the Irish mail, with eight passengers, the coachman,guard, and a youth about fifteen years of age (in all fifteenin number, including the boatman), was upset, and only twopersons saved. The present bridge is in effect a rectangular tunnel, or hollowsquare box, the sides of which carry the load. The Conwayend of the tube is immovable, being fixed on the pier, andmade to rest on two beds of creosoted timber, with intermediatecast-iron bed-plates; but the Chester end is free, so that itmay expand by heat and contract by cold. Here the tuberests on cast-iron rollers, which give play, so as to allow twelveinches of motion. The whole mass weighs 1,140 tons. A tubular bridge has been constructed over the Wye, at 200 OUR [RON ROADS. I hepstow, on the South Wales Railway, to which allusion mustbe made. It consists of four sp
Size: 2372px × 1054px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1883
