"brassey" - 1 õppematerjal

Bridges presentation

durableconstruction. Smithsonian Institution The Thomas Viaduct on the Baltimore & Ohio Railroad (1835) (Figure 13), the Canton on the Boston & Providence Railroad (1835), and the Starrucca on the New York & Erie Railroad (1848) are the oldest stone viaducts and three of the great monumental structures of the USA's early railways. Examples in Europe include the Viaduc de Barentine (1846), constructed by British navvies under the direction of MacKenzie and Thomas Brassey in brick rather than stone, and the Viaduc de Saint-Chamas (1847), both in France. In the United Kingdom, notable viaducts include the 181ft (55m) Ballochmyle Viaduct (1848), designed by John Miller for the Glasgow & South Western Railway, the largest masonry-arch span in the country; the Harrington Viaduct (1876), the longest at 3500ft (1067m), carried on 82 brick arches; the Meldon Viaduct (1874), the best surviving