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Show Highest Italliroad Brldse. A notabld engineering work is now being executed lu France, and involves the construction of n vlnduct crowing the Sloule Vnlley nenr Vnurlnt. This structure, known as tho Fades Viaduct, Via-duct, when completed Will be the highest high-est railway bridge In the world, the lovel of the rails being 434 feet 7 inches above the bed of thj stream. There are two granite masonry tower piers that are foundedon solid rock nnd rise to a height of 303 feet. These'"plecs,. standing alone, have the appearance of largo chimneys, but, says Harper's Weekly, their function Is to support the three steel spnus which lmvo the un-usunl un-usunl lengths of 472 feet 5 Inches for the centre span and 378 feet for each of the flanking spans. The latter connect con-nect with masonry approach spaus formed by circular arches, This bridge differs from other structures lii the use of masonry Instead bf steel for tbe centre cen-tre towers, and tuc use of lattice glr,der. deck spans Inrtead of the' arch construction con-struction of either masonry or steel, a favorite method of crossing such a ralley: ' |