Canals or artificial waterways are waterways or engineered channels built for drainage management or for conveyancing water transport vehicles. They carry free, calm surface flow under atmospheric pressure, and can be thought of as artificial rivers.
Water transport played a vital role in the UK's industrial development. The beginning of the 19th century saw a move from roads to waterways,.
The River Avon in central England flows generally southwestwards and is a major left-bank tributary of the River Severn, of which it is the easternmost. It is also known as the Warwickshire Avon or Shakespeare's Avon, to distinguish it from several other rivers of the same name in the United Kingdom.
A waterway is any navigable body of water. Broad distinctions are useful to avoid ambiguity, and disambiguation will be of varying importance depending on the nuance of the equivalent word in other languages. A first distinction is necessary between maritime shipping routes and waterways used by inland water craft. Maritime shipping routes cross oceans and seas, and some lakes, where navigability is assumed, and no engineering is required, except to provide the draft for deep-sea shipping to approach seaports (channels), or to provide a short cut across an isthmus; this is the function of ship canals. Dredged channels in the sea are not usually described as waterways. There is an exception to this initial distinction, essentially for legal purposes, see under international waters.
The canal network of the United Kingdom played a vital role in the Industrial Revolution. The UK was the first country to develop a nationwide canal network which, at its peak, expanded to nearly 4,000 miles in length. The canals allowed raw materials to be transported to a place of manufacture, and finished goods to be transported to consumers, more quickly and cheaply than by a land based route. The canal network was extensive and included feats of civil engineering such as the Anderton Boat Lift, the Manchester Ship Canal, the Worsley Navigable Levels and the Pontcysyllte Aqueduct.
A ship canal is a canal especially intended to accommodate ships used on the oceans, seas, or lakes to which it is connected.
The canals of the United Kingdom are a major part of the network of inland waterways in the United Kingdom. They have a varied history, from use for irrigation and transport, through becoming the focus of the Industrial Revolution, to today's role of recreational boating. Despite a period of abandonment, today the canal system in the United Kingdom is again increasing in use, with abandoned and derelict canals being reopened, and the construction of some new routes. Canals in England and Wales are maintained by navigation authorities. The biggest navigation authorities are the Canal & River Trust and the Environment Agency, but other canals are managed by companies, local authorities or charitable trusts.
A body of water, such as a river, canal or lake, is navigable if it is deep, wide and calm enough for a water vessel to pass safely. Such a navigable water is called a waterway, and is preferably with few obstructions against direct traverse that need avoiding, such as rocks, reefs or trees. Bridges built over waterways must have sufficient clearance. High flow speed may make a channel unnavigable due to risk of ship collisions. Waters may be unnavigable because of ice, particularly in winter or high-latitude regions. Navigability also depends on context: a small river may be navigable by smaller craft such as a motorboat or a kayak, but unnavigable by a larger freighter or cruise ship. Shallow rivers may be made navigable by the installation of locks that regulate flow and increase upstream water level, or by dredging that deepens parts of the stream bed.
The inland waterways of the United States include more than 25,000 mi (40,000 km) of navigable waters. Much of the commercially important waterways of the United States consist of the Mississippi River System—the Mississippi River and connecting waterways.
Inland navigation, inland barge transport or inland waterway transport (IWT) is a transport system allowing ships and barges to use inland waterways. These waterways have inland ports, marinas, quays, and wharfs.
Inland Electronic Navigational Charts (IENC) are electronic navigational charts for rivers, canals, lakes and other inland waters which are navigable. IENCs are displayed by an Inland Electronic Chart Display and Information System.
Voies navigables de France is the French navigation authority responsible for the management of the majority of France's inland waterways network and the associated facilities—towpaths, commercial and leisure ports, lock-keeper's houses and other structures. VNF was established in 1991 and took over the responsibility for all waterways from the National Office of Navigation in 1993. It is a public body and is under the control of the Minister of Ecology, Energy, Sustainable Development and Territorial Development. The headquarters of VNF are in Béthune, Pas-de-Calais with local offices throughout France.
Inland Waterways Authority of India (IWAI) is the statutory authority in charge of the waterways in India. It was constituted under IWAI Act-1985 by the Parliament of India. Its headquarters is located in Noida, Uttar Pradesh.
The Canal de la Deûle is one of the oldest canals in northern France, originally connecting the river Scarpe near Douai with the river Lys at Deûlémont near the Belgian border. Roughly half of its original length has been absorbed in the high-capacity Dunkerque-Escaut waterway, as shown on the map, and the remaining length through the port of Lille is often considered as a branch of the main route, hence the alternative names Liaison or Antenne Bauvin-Lys. This official name was never adopted by the local population, which refers simply to the Deûle, evoking its original state as a natural river, although it has the size and the appearance of a built canal. It is 34.8 kilometres (21.6 mi) long with 3 locks.
The World Association for Waterborne Transport Infrastructure (PIANC) is an international professional organisation founded in 1885. PIANC’s mission today is to provide expert guidance and technical advice on technical, economic and environmental issues pertaining to waterborne transport infrastructure, including the fields of navigable bodies of water (waterways), such as canals and rivers, as well as ports and marinas. It is headquartered in Brussels in offices provided by the Flemish government of Belgium. Its earlier names were the Association Internationale Permanente des Congres de Navigation (AIPCN) until 1921, then as the Permanent International Association of Navigation Congresses (PIANC). It is additionally known as the International Navigation Association.
A péniche is a steel motorised inland waterway barge of up to 350 tonnes' capacity. Péniche barges were built to fit the post-1880s French waterways and the locks of Freycinet gauge. They are visually similar to a Dutch barge, but built to different specifications.
Keitele Canal is water route in Central Finland. It is about 45 km long. The canal consists of six lakes and five self-service locks.
The Unified Deep Water System of European Russia or UDWS is a system of inland waterways in Russia linking the White Sea, the Baltic Sea, the Volga River, Moscow, the Caspian Sea and—via the Sea of Azov—the Black Sea. In 2010, UDWS carried 70 million tons of cargo and 12 million passengers, making up two-thirds of overall inland waterway traffic volume in Russia. There are 60 common-use ports and quays in the UDWS, including three international ports, so Moscow is sometimes called "the port of the five seas".
A widebeam is a canal boat built in the style of a British narrowboat but with a beam of 2.16 metres or greater.
The reference water levels are used on inland waterways to define a range of water levels allowing the full use of the waterway for navigation. Ship passage can be limited by the water levels that are too low, when the fairway might become too shallow for large ships, or too high, when it might become impossible for the target ships to pass under the bridges. The goal of establishing the reference water levels is to balance the safety of navigation and economic value of the waterway. Reference levels are set up based on statistics obtained from the multi-decadal observations.
