Canal this trend. Yet in other countries canals grew in size as construction techniques improved. During the 19th century in the US, the length of canals grew from to over 4,000, with a complex network making the Great Lakes navigable, in conjunction with Canada, although some canals were later drained and used as railroad rights-of-way. In the United States, navigable canals reached into isolated areas and brought them in touch with the world beyond. By 1825 the Erie Canal, long with 36 locks, opened up a connection from the populated Northeast to the Great Lakes. Settlers flooded into regions serviced by
History of the British canal system Telford, whose Ellesmere Canal helped link the Severn and the Mersey. The bulk of the canal system was built in the industrial Midlands and the north of England, where navigable rivers most needed extending and connecting, and heavy cargoes of manufactured goods, raw materials or coal most needed carrying. Most of the traffic on the canal network was internal. However, the network linked with coastal port cities such as London, Liverpool, and Bristol, where cargo could be exchanged with seagoing ships for import and export. The North West and West Midlands regions contain a dense network of canals. The great