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Canals or artificial waterways are
waterway 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 b ...
s or engineered channels built for
drainage Drainage is the natural or artificial removal of a surface's water and sub-surface water from an area with excess of water. The internal drainage of most agricultural soils is good enough to prevent severe waterlogging (anaerobic condition ...
management (e.g.
flood control Flood control methods are used to reduce or prevent the detrimental effects of flood waters."Flood Control", MSN Encarta, 2008 (see below: Further reading). Flood relief methods are used to reduce the effects of flood waters or high water level ...
and
irrigation Irrigation (also referred to as watering) is the practice of applying controlled amounts of water to land to help grow crops, landscape plants, and lawns. Irrigation has been a key aspect of agriculture for over 5,000 years and has been devel ...
) or for conveyancing water transport
vehicle A vehicle (from la, vehiculum) is a machine that transports people or cargo. Vehicles include wagons, bicycles, motor vehicles (motorcycles, cars, trucks, buses, mobility scooters for disabled people), railed vehicles (trains, trams), ...
s (e.g.
water taxi A water taxi or a water bus is a watercraft used to provide public or private transport, usually, but not always, in an urban environment. Service may be scheduled with multiple stops, operating in a similar manner to a bus, or o ...
). They carry free, calm surface flow under
atmospheric pressure Atmospheric pressure, also known as barometric pressure (after the barometer), is the pressure within the atmosphere of Earth. The standard atmosphere (symbol: atm) is a unit of pressure defined as , which is equivalent to 1013.25 millibars, ...
, and can be thought of as artificial
river A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of w ...
s. In most cases, a canal has a series of
dam A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use ...
s and
locks Lock(s) may refer to: Common meanings *Lock and key, a mechanical device used to secure items of importance *Lock (water navigation), a device for boats to transit between different levels of water, as in a canal Arts and entertainment * ''Lock ...
that create
reservoir A reservoir (; from French ''réservoir'' ) is an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation. Reservoirs can be created in a number of ways, including contro ...
s of low speed current flow. These reservoirs are referred to as ''slack water levels'', often just called ''levels''. A canal can be called a ''navigation canal'' when it parallels a natural river and shares part of the latter's discharges and
drainage basin A drainage basin is an area of land where all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, ...
, and leverages its resources by building dams and locks to increase and lengthen its stretches of slack water levels while staying in its
valley A valley is an elongated low area often running between hills or mountains, which will typically contain a river or stream running from one end to the other. Most valleys are formed by erosion of the land surface by rivers or streams ove ...
. A canal can cut across a drainage divide atop a ridge, generally requiring an external water source above the highest
elevation The elevation of a geographic location is its height above or below a fixed reference point, most commonly a reference geoid, a mathematical model of the Earth's sea level as an equipotential gravitational surface (see Geodetic datum § Ver ...
. The best-known example of such a canal is the
Panama Canal The Panama Canal ( es, Canal de Panamá, link=no) is an artificial waterway in Panama that connects the Atlantic Ocean with the Pacific Ocean and divides North and South America. The canal cuts across the Isthmus of Panama and is a condui ...
. Many canals have been built at elevations, above valleys and other waterways. Canals with sources of water at a higher level can deliver water to a destination such as a city where water is needed. The
Roman Empire The Roman Empire ( la, Imperium Romanum ; grc-gre, Βασιλεία τῶν Ῥωμαίων, Basileía tôn Rhōmaíōn) was the post- Republican period of ancient Rome. As a polity, it included large territorial holdings around the Mediter ...
's aqueducts were such
water supply Water supply is the provision of water by public utilities, commercial organisations, community endeavors or by individuals, usually via a system of pumps and pipes. Public water supply systems are crucial to properly functioning societies. Thes ...
canals.


Types of artificial waterways

A ''navigation'' is a series of channels that run roughly parallel to the valley and stream bed of an unimproved river. A navigation always shares the
drainage basin A drainage basin is an area of land where all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, ...
of the river. A vessel uses the calm parts of the river itself as well as improvements, traversing the same changes in height. A true ''canal'' is a channel that cuts across a drainage divide, making a navigable channel connecting two different
drainage basin A drainage basin is an area of land where all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, ...
s. In gardening and landscaping, especially historically, a
canal Canals or artificial waterways are waterways or engineered channels built for drainage management (e.g. flood control and irrigation) or for conveyancing water transport vehicles (e.g. water taxi). They carry free, calm surface flo ...
is an artificial piece of water, typically long, thin, and straight-sided, fed by a stream that is diverted and dammed. They are typical of the
French formal garden The French formal garden, also called the (), is a style of garden based on symmetry and the principle of imposing order on nature. Its epitome is generally considered to be the Gardens of Versailles designed during the 17th century by the ...
style of the 17th century, and the
Dutch garden Dutch garden refers firstly to gardens in the Netherlands, but also, mainly in the English-speaking countries, to various types of gardens traditionally considered to be in a Dutch style, a presumption that has been much disputed by garden historia ...
variant which was influential in England. The example in the restored
Westbury Court Garden Westbury Court Garden is a Dutch water garden in Westbury-on-Severn, Gloucestershire, England, southwest of Gloucester. It is a rare survival of seventeenth century garden design and was initially laid out by the owner of Westbury Court, Mayna ...
, of c. 1700, is long. Most commercially important canals of the first half of the 19th century were a little of each, using rivers in long stretches, and divide crossing canals in others. This is true for many canals still in use. Canals are an efficient way of traveling as it was easier for people to get to areas faster than horse wagons.


Structures used in artificial waterways

Both navigations and canals use engineered structures to improve navigation: *
weir A weir or low head dam is a barrier across the width of a river that alters the flow characteristics of water and usually results in a change in the height of the river level. Weirs are also used to control the flow of water for outlets of l ...
s and
dam A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use ...
s to raise river water levels to usable depths; * looping descents to create a longer and gentler channel around a stretch of rapids or falls; *
locks Lock(s) may refer to: Common meanings *Lock and key, a mechanical device used to secure items of importance *Lock (water navigation), a device for boats to transit between different levels of water, as in a canal Arts and entertainment * ''Lock ...
to allow ships and barges to ascend/descend. Since they cut across drainage divides, canals are more difficult to construct and often need additional improvements, like viaducts and
aqueducts Aqueduct may refer to: Structures *Aqueduct (bridge), a bridge to convey water over an obstacle, such as a ravine or valley *Navigable aqueduct, or water bridge, a structure to carry navigable waterway canals over other rivers, valleys, railw ...
to bridge waters over streams and roads, and ways to keep water in the channel.


Types of canals

There are two broad types of canal: *
Waterway 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 b ...
s: canals and navigations used for carrying vessels transporting goods and people. These can be subdivided into two kinds: :* Those connecting existing
lake A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much large ...
s,
river A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of w ...
s, other canals or seas and
ocean The ocean (also the sea or the world ocean) is the body of salt water that covers approximately 70.8% of the surface of Earth and contains 97% of Earth's water. An ocean can also refer to any of the large bodies of water into which the wo ...
s. :* Those connected in a city network: such as the '' Canal Grande'' and others of
Venice Venice ( ; it, Venezia ; vec, Venesia or ) is a city in northeastern Italy and the capital of the Veneto region. It is built on a group of 118 small islands that are separated by canals and linked by over 400 bridges. The isla ...
; the '' grachten'' of
Amsterdam Amsterdam ( , , , lit. ''The Dam on the River Amstel'') is the capital and most populous city of the Netherlands, with The Hague being the seat of government. It has a population of 907,976 within the city proper, 1,558,755 in the urban ar ...
or
Utrecht Utrecht ( , , ) is the fourth-largest city and a municipality of the Netherlands, capital and most populous city of the province of Utrecht. It is located in the eastern corner of the Randstad conurbation, in the very centre of mainland Net ...
, and the waterways of
Bangkok Bangkok, officially known in Thai as Krung Thep Maha Nakhon and colloquially as Krung Thep, is the capital and most populous city of Thailand. The city occupies in the Chao Phraya River delta in central Thailand and has an estimated populati ...
. *
Aqueducts Aqueduct may refer to: Structures *Aqueduct (bridge), a bridge to convey water over an obstacle, such as a ravine or valley *Navigable aqueduct, or water bridge, a structure to carry navigable waterway canals over other rivers, valleys, railw ...
:
water supply Water supply is the provision of water by public utilities, commercial organisations, community endeavors or by individuals, usually via a system of pumps and pipes. Public water supply systems are crucial to properly functioning societies. Thes ...
canals that are used for the conveyance and delivery of
potable Drinking water is water that is used in drink or food preparation; potable water is water that is safe to be used as drinking water. The amount of drinking water required to maintain good health varies, and depends on physical activity level, ag ...
water,
municipal A municipality is usually a single administrative division having corporate status and powers of self-government or jurisdiction as granted by national and regional laws to which it is subordinate. The term ''municipality'' may also mean the go ...
uses, hydro power canals and
agriculture Agriculture or farming is the practice of cultivating plants and livestock. Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people t ...
irrigation Irrigation (also referred to as watering) is the practice of applying controlled amounts of water to land to help grow crops, landscape plants, and lawns. Irrigation has been a key aspect of agriculture for over 5,000 years and has been devel ...
.


Importance

Historically canals were of immense importance to commerce and the development, growth and vitality of a civilization. In 1855 the Lehigh Canal carried over 1.2 million tons of anthracite coal; by the 1930s the company which built and operated it over a century pulled the plug. The few canals still in operation in our modern age are a fraction of the numbers that once fueled and enabled economic growth, indeed were practically a prerequisite to further urbanization and industrialization. For the movement of bulk raw materials such as coal and ores are difficult and marginally affordable without water transport. Such raw materials fueled the industrial developments and new metallurgy resulting of the spiral of increasing mechanization during 17th–20th century, leading to new research disciplines, new industries and economies of scale, raising the standard of living for any industrialized society.


The surviving canals

Most
ship canal A ship canal is a canal especially intended to accommodate ships used on the oceans, seas, or lakes to which it is connected. Definition Ship canals can be distinguished from barge canals, which are intended to carry barges and other vessel ...
s today primarily service
bulk cargo Bulk cargo is commodity cargo that is transported unpackaged in large quantities. Description Bulk cargo refers to material in either liquid or granular, particulate form, as a mass of relatively small solids, such as petroleum/ crude o ...
and large
ship transport Maritime transport (or ocean transport) and hydraulic effluvial transport, or more generally waterborne transport, is the transport of people ( passengers) or goods (cargo) via waterways. Freight transport by sea has been widely used throu ...
ation industries, whereas the once critical smaller inland waterways conceived and engineered as boat and barge canals have largely been supplanted and filled in, abandoned and left to deteriorate, or kept in service and staffed by state employees, where dams and locks are maintained for flood control or pleasure boating. Their replacement was gradual, beginning first in the United States in the mid-1850s where canal shipping was first augmented by, then began being replaced by using ''much faster'', less geographically constrained & limited, and generally cheaper to maintain
railway Rail transport (also known as train transport) is a means of transport that transfers passengers and goods on wheeled vehicles running on rails, which are incorporated in tracks. In contrast to road transport, where the vehicles run on a pre ...
s. By the early 1880s, canals which had little ability to economically compete with rail transport, were off the map. In the next couple of decades, coal was increasingly diminished as the heating fuel of choice by oil, and growth of coal shipments leveled off. Later, after
World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...
when motor-trucks came into their own, the last small U.S. barge canals saw a steady decline in cargo ton-miles alongside many railways, the flexibility and steep slope climbing capability of lorries taking over cargo hauling increasingly as road networks were improved, and which also had the freedom to make deliveries well away from rail lined road beds or ditches in the dirt which couldn't operate in the winter. The longest extant canal today, the Grand Canal in northern China, still remains in heavy use, especially the portion south of the
Yellow River The Yellow River or Huang He (Chinese: , Mandarin: ''Huáng hé'' ) is the second-longest river in China, after the Yangtze River, and the sixth-longest river system in the world at the estimated length of . Originating in the Bayan Ha ...
. It stretches from
Beijing } Beijing ( ; ; ), alternatively romanized as Peking ( ), is the capital of the People's Republic of China. It is the center of power and development of the country. Beijing is the world's most populous national capital city, with over 21 ...
to
Hangzhou Hangzhou ( or , ; , , Standard Mandarin pronunciation: ), also romanized as Hangchow, is the capital and most populous city of Zhejiang, China. It is located in the northwestern part of the province, sitting at the head of Hangzhou Bay, whic ...
at 1,794 kilometres (1,115 miles).


Construction

Canals are built in one of three ways, or a combination of the three, depending on available water and available path: ;Human made streams * A canal can be created where no stream presently exists. Either the body of the canal is dug or the sides of the canal are created by making dykes or levees by piling dirt, stone, concrete or other building materials. The finished shape of the canal as seen in cross section is known as the ''canal prism''. The water for the canal must be provided from an external source, like streams or reservoirs. Where the new waterway must change elevation engineering works like locks, lifts or elevators are constructed to raise and lower vessels. Examples include canals that connect valleys over a higher body of land, like Canal du Midi,
Canal de Briare The Briare Canal (french: Canal de Briare, ) is one of the oldest canals in France. Its construction started in 1604. It was the first summit level canal in Europe that was built using pound locks, connecting the Rhone-Saône and Seine valleys. ...
and the
Panama Canal The Panama Canal ( es, Canal de Panamá, link=no) is an artificial waterway in Panama that connects the Atlantic Ocean with the Pacific Ocean and divides North and South America. The canal cuts across the Isthmus of Panama and is a condui ...
. * A canal can be constructed by dredging a channel in the bottom of an existing lake. When the channel is complete, the lake is drained and the channel becomes a new canal, serving both drainage of the surrounding polder and providing transport there. Examples include the . One can also build two parallel dikes in an existing lake, forming the new canal in between, and then drain the remaining parts of the lake. The eastern and central parts of the
North Sea Canal The North Sea Canal ( nl, Noordzeekanaal) is a Dutch ship canal from Amsterdam to the North Sea at IJmuiden, constructed between 1865 and 1876 to enable seafaring vessels to reach the port of Amsterdam. This man-made channel terminates at Amster ...
were constructed in this way. In both cases pumping stations are required to keep the land surrounding the canal dry, either pumping water from the canal into surrounding waters, or pumping it from the land into the canal. ;Canalization and navigations * A stream can be '' canalized'' to make its navigable path more predictable and easier to maneuver. Canalization modifies the stream to carry traffic more safely by controlling the flow of the stream by dredging, damming and modifying its path. This frequently includes the incorporation of locks and spillways, that make the river a navigation. Examples include the Lehigh Canal in
Northeastern Pennsylvania Northeastern Pennsylvania (NEPA) is a geographic region of the U.S. state of Pennsylvania that includes the Pocono Mountains, the Endless Mountains, and the industrial cities of Scranton, Wilkes-Barre, Pittston, Hazleton, Nanticoke, and Car ...
's
coal Region The Coal Region is a region of Northeastern Pennsylvania. It is known for being home to the largest known deposits of anthracite coal in the world with an estimated reserve of seven billion short tons. The region is typically defined as compri ...
,
Basse Saône Basse may refer to: Places * Basse (Gambia), The Gambia * Basse Santa Su, The Gambia * Basse, Netherlands * Bassé, Burkina Faso People * Éliane Basse (1899–1985), French paleontologist * Hans-Dieter von Basse (1916–1945), Oberstleutnant ...
, Canal de Mines de Fer de la Moselle, and
Aisne River The Aisne ( , , ) is a river in northeastern France. It is a left tributary of the Oise. It gave its name to the French department of Aisne. It was known in the Roman period as Axona. The river rises in the forest of Argonne, at Remberco ...
.
Riparian zone restoration Riparian-zone restoration is the ecological restoration of riparian-zone habitats of streams, rivers, springs, lakes, floodplains, and other hydrologic ecologies. A riparian zone or riparian area is the interface between land and a river or str ...
may be required. ;Lateral canals * When a stream is too difficult to modify with ''canalization'', a second stream can be created next to or at least near the existing stream. This is called a ''
lateral canal {{About, water canals, lateral extensions of root canals of a tooth, Root canal#Root canal system A lateral canal is a canal built along the same right-of-way as an existing stream. Water for the canal is usually provided by the original natural ...
'', and may meander in a large horseshoe bend or series of curves some distance from the source waters stream bed lengthening the effective length in order to lower the ratio of rise over run (slope or pitch). The existing stream usually acts as the water source and the landscape around its banks provide a path for the new body. Examples include the
Chesapeake and Ohio Canal The Chesapeake and Ohio Canal, abbreviated as the C&O Canal and occasionally called the "Grand Old Ditch," operated from 1831 until 1924 along the Potomac River between Washington, D.C. and Cumberland, Maryland. It replaced the Potomac Canal, ...
,
Canal latéral à la Loire The Canal latéral à la Loire (, "canal parallel to the Loire") was constructed between 1827 and 1838 to connect the Canal de Briare at Briare and the Canal du Centre at Digoin, a distance of . It replaced the use of the river Loire, which wa ...
, Garonne Lateral Canal,
Welland Canal The Welland Canal is a ship canal in Ontario, Canada, connecting Lake Ontario and Lake Erie. It forms a key section of the St. Lawrence Seaway and Great Lakes Waterway. Traversing the Niagara Peninsula from Port Weller in St. Catharines ...
and Juliana Canal. Smaller transportation canals can carry
barge Barge nowadays generally refers to a flat-bottomed inland waterway vessel which does not have its own means of mechanical propulsion. The first modern barges were pulled by tugs, but nowadays most are pushed by pusher boats, or other vessels ...
s or narrowboats, while
ship canal A ship canal is a canal especially intended to accommodate ships used on the oceans, seas, or lakes to which it is connected. Definition Ship canals can be distinguished from barge canals, which are intended to carry barges and other vessel ...
s allow seagoing ships to travel to an inland port (e.g., Manchester Ship Canal), or from one sea or ocean to another (e.g., Caledonian Canal,
Panama Canal The Panama Canal ( es, Canal de Panamá, link=no) is an artificial waterway in Panama that connects the Atlantic Ocean with the Pacific Ocean and divides North and South America. The canal cuts across the Isthmus of Panama and is a condui ...
).


Features

At their simplest, canals consist of a trench filled with water. Depending on the stratum the canal passes through, it may be necessary to line the cut with some form of watertight material such as clay or concrete. When this is done with clay, it is known as puddling. Canals need to be level, and while small irregularities in the lie of the land can be dealt with through cuttings and embankments, for larger deviations other approaches have been adopted. The most common is the
pound lock A lock is a device used for raising and lowering boats, ships and other watercraft between stretches of water of different levels on river and canal waterways. The distinguishing feature of a lock is a fixed chamber in which the water lev ...
, which consists of a chamber within which the water level can be raised or lowered connecting either two pieces of canal at a different level or the canal with a river or the sea. When there is a hill to be climbed, flights of many locks in short succession may be used. Prior to the development of the pound lock in 984 AD in China by Chhaio Wei-Yo and later in Europe in the 15th century, either flash locks consisting of a single gate were used or ramps, sometimes equipped with rollers, were used to change the level. Flash locks were only practical where there was plenty of water available. Locks use a lot of water, so builders have adopted other approaches for situations where little water is available. These include
boat lift A boat lift, ship lift, or lift lock is a machine for transporting boats between water at two different elevations, and is an alternative to the canal lock. It may be vertically moving, like the Anderton boat lift in England, rotational, like ...
s, such as the
Falkirk Wheel The Falkirk Wheel is a rotating boat lift in Tamfourhill, Falkirk, in central Scotland, connecting the Forth and Clyde Canal with the Union Canal. It reconnects the two canals for the first time since the 1930s. It opened in 2002 as part o ...
, which use a caisson of water in which boats float while being moved between two levels; and
inclined planes An inclined plane, also known as a ramp, is a flat supporting surface tilted at an angle from the vertical direction, with one end higher than the other, used as an aid for raising or lowering a load. The inclined plane is one of the six clas ...
where a caisson is hauled up a steep railway. To cross a stream, road or valley (where the delay caused by a flight of locks at either side would be unacceptable) the valley can be spanned by a
navigable aqueduct Navigable aqueducts (sometimes called water bridges) are bridge structures that carry navigable waterway canals over other rivers, valleys, railways or roads. They are primarily distinguished by their size, carrying a larger cross-section of wa ...
– a famous example in Wales is the
Pontcysyllte Aqueduct The Pontcysyllte Aqueduct (; cy, Traphont Ddŵr Pontcysyllte) is a navigable aqueduct that carries the Llangollen Canal across the River Dee in the Vale of Llangollen in northeast Wales. The 18-arched stone and cast iron structure is for use ...
(now a
UNESCO The United Nations Educational, Scientific and Cultural Organization is a specialized agency of the United Nations (UN) aimed at promoting world peace and security through international cooperation in education, arts, sciences and culture. It ...
World Heritage Site A World Heritage Site is a landmark or area with legal protection by an international convention administered by the United Nations Educational, Scientific and Cultural Organization (UNESCO). World Heritage Sites are designated by UNESCO for h ...
) across the valley of the River Dee. Another option for dealing with hills is to tunnel through them. An example of this approach is the
Harecastle Tunnel Harecastle Tunnel is a canal tunnel on the Trent and Mersey Canal in Staffordshire between Kidsgrove and Tunstall. The tunnel, which is long, was once one of the longest in the country. Its industrial purpose was for the transport of coal ...
on the Trent and Mersey Canal. Tunnels are only practical for smaller canals. Some canals attempted to keep changes in level down to a minimum. These canals known as contour canals would take longer, winding routes, along which the land was a uniform altitude. Other, generally later, canals took more direct routes requiring the use of various methods to deal with the change in level. Canals have various features to tackle the problem of water supply. In cases, like the Suez Canal, the canal is open to the sea. Where the canal is not at sea level, a number of approaches have been adopted. Taking water from existing rivers or springs was an option in some cases, sometimes supplemented by other methods to deal with seasonal variations in flow. Where such sources were unavailable,
reservoirs A reservoir (; from French ''réservoir'' ) is an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation. Reservoirs can be created in a number of ways, including control ...
 – either separate from the canal or built into its course – and back pumping were used to provide the required water. In other cases, water pumped from mines was used to feed the canal. In certain cases, extensive "feeder canals" were built to bring water from sources located far from the canal. Where large amounts of goods are loaded or unloaded such as at the end of a canal, a
canal basin A canal basin is (particularly in the United Kingdom) an expanse of waterway alongside or at the end of a canal, and wider than the canal, constructed to allow boats to moor or unload cargo without impeding the progress of other traffic, and to al ...
may be built. This would normally be a section of water wider than the general canal. In some cases, the canal basins contain
wharf A wharf, quay (, also ), staith, or staithe is a structure on the shore of a harbour or on the bank of a river or canal where ships may dock to load and unload cargo or passengers. Such a structure includes one or more berths (mooring locatio ...
s and cranes to assist with movement of goods. When a section of the canal needs to be sealed off so it can be drained for maintenance stop planks are frequently used. These consist of planks of wood placed across the canal to form a dam. They are generally placed in pre-existing grooves in the canal bank. On more modern canals, "guard locks" or gates were sometimes placed to allow a section of the canal to be quickly closed off, either for maintenance, or to prevent a major loss of water due to a canal breach. File:caen.hill.locks.in.devizes.arp.jpg, alt=A series of approximately 20 black lock gates with white ends to the paddle arms and wooden railings, each slightly higher than the one below. On the right is a path and on both side's grass and vegetation., The flight of 16 consecutive locks at Caen Hill on the Kennet and Avon Canal,
Wiltshire Wiltshire (; abbreviated Wilts) is a historic and ceremonial county in South West England with an area of . It is landlocked and borders the counties of Dorset to the southwest, Somerset to the west, Hampshire to the southeast, Gloucestershire ...
. File:pontcysyllte aqueduct arp.jpg, A canal boat traverses the longest and highest aqueduct in the UK, at
Pontcysyllte The Pontcysyllte Aqueduct (; cy, Traphont Ddŵr Pontcysyllte) is a navigable aqueduct that carries the Llangollen Canal across the River Dee in the Vale of Llangollen in northeast Wales. The 18-arched stone and cast iron structure is for use ...
in
Denbighshire Denbighshire ( ; cy, Sir Ddinbych; ) is a county in the north-east of Wales. Its borders differ from the historic county of the same name. This part of Wales contains the country's oldest known evidence of habitation – Pontnewydd (Bontnewy ...
,
Wales Wales ( cy, Cymru ) is a country that is part of the United Kingdom. It is bordered by England to the east, the Irish Sea to the north and west, the Celtic Sea to the south west and the Bristol Channel to the south. It had a population in ...
. File:Canal of korinth greece.jpg, The
Corinth Canal The Corinth Canal ( el, Διώρυγα της Κορίνθου, translit=Dhioryga tis Korinthou) is an artificial canal in Greece, that connects the Gulf of Corinth in the Ionian Sea with the Saronic Gulf in the Aegean Sea. It cuts through the ...
seen from the air. File:Miami and Erie Canal Lock photographs - DPLA - a4f6bf1bdcffd61c72c1a077104f91ed (page 1).jpg, Miami and Erie Canal Lock in Ohio, United States


History

The transport capacity of
pack animal A pack animal, also known as a sumpter animal or beast of burden, is an individual or type of working animal used by humans as means of transporting materials by attaching them so their weight bears on the animal's back, in contrast to draft ani ...
s and carts is limited. A mule can carry an eighth-ton [] maximum load over a journey measured in days and weeks, though much more for shorter distances and periods with appropriate rest. Besides, carts need roads. Transport over water is much more efficient and cost-effective for large cargoes.


Ancient canals

The oldest known canals were
irrigation Irrigation (also referred to as watering) is the practice of applying controlled amounts of water to land to help grow crops, landscape plants, and lawns. Irrigation has been a key aspect of agriculture for over 5,000 years and has been devel ...
canals, built in
Mesopotamia Mesopotamia ''Mesopotamíā''; ar, بِلَاد ٱلرَّافِدَيْن or ; syc, ܐܪܡ ܢܗܪ̈ܝܢ, or , ) is a historical region of Western Asia situated within the Tigris–Euphrates river system, in the northern part of the ...
circa 4000 BC, in what is now
Iraq Iraq,; ku, عێراق, translit=Êraq officially the Republic of Iraq, '; ku, کۆماری عێراق, translit=Komarî Êraq is a country in Western Asia. It is bordered by Turkey to the north, Iran to the east, the Persian Gulf and K ...
. The Indus Valley civilization of
ancient India According to consensus in modern genetics, anatomically modern humans first arrived on the Indian subcontinent from Africa between 73,000 and 55,000 years ago. Quote: "Y-Chromosome and Mt-DNA data support the colonization of South Asia by m ...
(circa 3000 BC) had sophisticated irrigation and storage systems developed, including the
reservoir A reservoir (; from French ''réservoir'' ) is an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation. Reservoirs can be created in a number of ways, including contro ...
s built at
Girnar Girnar is an ancient hill in Junagadh, Gujarat, India. Geology Mount Girnar is a major igneous plutonic complex which intruded into the basalts towards the close of the Deccan Trap period. The rock types identified in this complex are ga ...
in 3000 BC. This is the first time that such planned civil project had taken place in the ancient world. In
Egypt Egypt ( ar, مصر , ), officially the Arab Republic of Egypt, is a transcontinental country spanning the northeast corner of Africa and southwest corner of Asia via a land bridge formed by the Sinai Peninsula. It is bordered by the Medit ...
, canals date back at least to the time of
Pepi I Meryre Pepi I Meryre (also Pepy I) was an ancient Egyptian pharaoh, third king of the Sixth Dynasty of Egypt, who ruled for over 40 years at the turn of the 24th and 23rd centuries BC, toward the end of the Old Kingdom period. He was the son of ...
(reigned 2332–2283 BC), who ordered a canal built to bypass the
cataract A cataract is a cloudy area in the lens of the eye that leads to a decrease in vision. Cataracts often develop slowly and can affect one or both eyes. Symptoms may include faded colors, blurry or double vision, halos around light, trouble ...
on the Nile near
Aswan Aswan (, also ; ar, أسوان, ʾAswān ; cop, Ⲥⲟⲩⲁⲛ ) is a city in Southern Egypt, and is the capital of the Aswan Governorate. Aswan is a busy market and tourist centre located just north of the Aswan Dam on the east bank of the ...
. In ancient China, large canals for river transport were established as far back as the Spring and Autumn Period (8th–5th centuries BC), the longest one of that period being the Hong Gou (Canal of the Wild Geese), which according to the ancient historian Sima Qian connected the old states of Song, Zhang, Chen, Cai, Cao, and Wei. The Caoyun System of canals was essential for imperial taxation, which was largely assessed in kind and involved enormous shipments of rice and other grains. By far the longest canal was the
Grand Canal of China The Grand Canal, known to the Chinese as the Jing–Hang Grand Canal (, or more commonly, as the「大运河」("Grand Canal")), a UNESCO World Heritage Site, is the longest canal or artificial river in the world. Starting in Beijing, it passes ...
, still the longest canal in the world today and the oldest extant one. It is long and was built to carry the Emperor Yang Guang between Zhuodu (
Beijing } Beijing ( ; ; ), alternatively romanized as Peking ( ), is the capital of the People's Republic of China. It is the center of power and development of the country. Beijing is the world's most populous national capital city, with over 21 ...
) and Yuhang (
Hangzhou Hangzhou ( or , ; , , Standard Mandarin pronunciation: ), also romanized as Hangchow, is the capital and most populous city of Zhejiang, China. It is located in the northwestern part of the province, sitting at the head of Hangzhou Bay, whic ...
). The project began in 605 and was completed in 609, although much of the work combined older canals, the oldest section of the canal existing since at least 486 BC. Even in its narrowest urban sections it is rarely less than wide.
Greek engineers Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group. *Greek language, a branch of the Indo-European language family. **Proto-Greek language, the assumed last common ancestor ...
were also among the first to use
canal locks A lock is a device used for raising and lowering boats, ships and other watercraft between stretches of water of different levels on river and canal waterways. The distinguishing feature of a lock is a fixed chamber in which the water lev ...
, by which they regulated the water flow in the Ancient Suez Canal as early as the 3rd century BC.Froriep, Siegfried (1986): "Ein Wasserweg in Bithynien. Bemühungen der Römer, Byzantiner und Osmanen", ''Antike Welt'', 2nd Special Edition, pp. 39–50 (46)
There was little experience moving bulk loads by carts, while a pack-horse would .e. 'could'carry only an eighth of a ton. On a soft road a horse might be able to draw 5/8ths of a ton. But if the load were carried by a barge on a waterway, then up to 30 tons could be drawn by the same horse.
— technology historian Ronald W. Clark referring to transport realities before the industrial revolution and the Canal age.''"Works of Man"'', Ronald W. Clark, (1985) 352 pages, Viking Penguin, Inc, New York,
quotation p. 87: "There was little experience moving bulk loads by carts, while a packhorse would ic, meaning 'could' or 'can only'carry only an eighth of a ton. On a soft road a horse might be able to draw 5/8ths of a ton. But if the load were carried by a barge on a waterway, then up to 30 tons could be drawn by the same horse.
Hohokam was a society in the North American Southwest in what is now part of
Arizona Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a state in the Southwestern United States. It is the 6th largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is part of the Fou ...
, United States, and Sonora, Mexico. Their irrigation systems supported the largest population in the Southwest by 1300 CE. Archaeologists working at a major archaeological dig in the 1990s in the Tucson Basin, along the Santa Cruz River, identified a culture and people that may have been the ancestors of the Hohokam. This prehistoric group occupied southern Arizona as early as 2000 BCE, and in the Early Agricultural Period grew corn, lived year-round in sedentary villages, and developed sophisticated irrigation canals. The large-scale Hohokam irrigation network in the
Phoenix metropolitan area The Phoenix Metropolitan Area – also the Valley of the Sun, the Salt River Valley, or Metro Phoenix (known by most locals simply as “the Valley”) – is the largest metropolitan area in the Southwestern United States, centered on the city ...
was the most complex in ancient North America. A portion of the ancient canals has been renovated for the Salt River Project and now helps to supply the city's water.


Middle Ages

In the
Middle Ages In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire ...
, water transport was several times cheaper and faster than transport overland. Overland transport by animal drawn conveyances was used around settled areas, but unimproved roads required pack animal trains, usually of mules to carry any degree of mass, and while a mule could carry an eighth ton, it also needed teamsters to tend it and one man could only tend perhaps five mules, meaning overland
bulk transport Bulk cargo is commodity cargo that is transported unpackaged in large quantities. Description Bulk cargo refers to material in either liquid or granular, particulate form, as a mass of relatively small solids, such as petroleum/ crude oi ...
was also expensive, as men expect compensation in the form of wages, room and board. This was because long-haul roads were unpaved, more often than not too narrow for carts, much less wagons, and in poor condition, wending their way through forests, marshy or muddy quagmires as often as unimproved but dry footing. In that era, as today, greater cargoes, especially bulk goods and raw materials, could be transported by ship far more economically than by land; in the pre-railroad days of the industrial revolution, water transport was the gold standard of fast transportation. The first artificial canal in Western Europe was the
Fossa Carolina The Fossa Carolina (or Karlsgraben in German) was a canal named after Charlemagne in what is today the German state of Bavaria, intended to connect the Swabian Rezat river to the Altmühl river (the Rhine basin to the Danube basin). It was c ...
built at the end of the 8th century under personal supervision of
Charlemagne Charlemagne ( , ) or Charles the Great ( la, Carolus Magnus; german: Karl der Große; 2 April 747 – 28 January 814), a member of the Carolingian dynasty, was King of the Franks from 768, King of the Lombards from 774, and the first ...
. In Britain, the ''
Glastonbury Canal The Glastonbury Canal ran for approximately through two locks from Glastonbury to Highbridge in Somerset, England, where it entered the River Parrett and from there the Bristol Channel. The canal was authorised by Parliament in 1827 and op ...
 '' is believed to be the first post-Roman canal and was built in the middle of the 10th century to link the
River Brue The River Brue originates in the parish of Brewham in Somerset, England, and reaches the sea some west at Burnham-on-Sea. It originally took a different route from Glastonbury to the sea, but this was changed by Glastonbury Abbey in the twelft ...
at Northover with
Glastonbury Abbey Glastonbury Abbey was a monastery in Glastonbury, Somerset, England. Its ruins, a grade I listed building and scheduled ancient monument, are open as a visitor attraction. The abbey was founded in the 8th century and enlarged in the 10th. It w ...
, a distance of about . Its initial purpose is believed to be the transport of building stone for the abbey, but later it was used for delivering produce, including grain, wine and fish, from the abbey's outlying properties. It remained in use until at least the 14th century, but possibly as late as the mid-16th century.
More lasting and of more economic impact were canals like the Naviglio Grande built between 1127 and 1257 to connect
Milan Milan ( , , Lombard: ; it, Milano ) is a city in northern Italy, capital of Lombardy, and the second-most populous city proper in Italy after Rome. The city proper has a population of about 1.4 million, while its metropolitan city h ...
with the
Ticino River The river Ticino ( , ; lmo, Tesín; French and german: Tessin; la, Ticīnus) is the most important perennial left-bank tributary of the Po. It has given its name to the Swiss canton through which its upper portion flows. It is one of the four ...
. The Naviglio Grande is the most important of the lombard " navigli" and the oldest functioning canal in Europe.
Later, canals were built in the
Netherlands ) , anthem = ( en, "William of Nassau") , image_map = , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of the Netherlands , established_title = Before independence , established_date = Spanish Netherl ...
and
Flanders Flanders (, ; Dutch: ''Vlaanderen'' ) is the Flemish-speaking northern portion of Belgium and one of the communities, regions and language areas of Belgium. However, there are several overlapping definitions, including ones related to cultu ...
to drain the polders and assist transportation of goods and people. Canal building was revived in this age because of commercial expansion from the 12th century. River navigations were improved progressively by the use of single, or flash locks. Taking boats through these used large amounts of water leading to conflicts with
watermill A watermill or water mill is a mill that uses hydropower. It is a structure that uses a water wheel or water turbine to drive a mechanical process such as milling (grinding), rolling, or hammering. Such processes are needed in the production of ...
owners and to correct this, the pound or chamber lock first appeared, in the 10th century in China and in Europe in 1373 in
Vreeswijk Vreeswijk is a former village and municipality in the Dutch province of Utrecht. The municipality merged with Jutphaas in 1971, and is now the southern half of the town of Nieuwegein. The former village was located on the Lek River, near wher ...
, Netherlands. Another important development was the mitre gate, which was, it is presumed, introduced in Italy by Bertola da Novate in the 16th century. This allowed wider gates and also removed the height restriction of guillotine locks. To break out of the limitations caused by river valleys, the first
summit level canal A summit-level canal is an artificial waterway connecting two separate river valleys. The term refers to a canal that rises to cross a summit then falls down the other side. The summit pound is a level stretch of water at the highest part of the ...
s were developed with the
Grand Canal of China The Grand Canal, known to the Chinese as the Jing–Hang Grand Canal (, or more commonly, as the「大运河」("Grand Canal")), a UNESCO World Heritage Site, is the longest canal or artificial river in the world. Starting in Beijing, it passes ...
in 581–617 AD whilst in Europe the first, also using single locks, was the
Stecknitz Canal The Stecknitz Canal (german: Stecknitzfahrt) was an artificial waterway in northern Germany which connected Lauenburg and Lübeck on the Old Salt Route by linking the tiny rivers Stecknitz (a tributary of the Trave) and Delvenau (a tributary o ...
in Germany in 1398.


Africa

In the
Songhai Empire The Songhai Empire (also transliterated as Songhay) was a state that dominated the western Sahel/Sudan in the 15th and 16th century. At its peak, it was one of the largest states in African history. The state is known by its historiographical ...
of West Africa, several canals were constructed under Sunni Ali and Askia Muhammad between Kabara and
Timbuktu Timbuktu ( ; french: Tombouctou; Koyra Chiini: ); tmh, label=Tuareg, script=Tfng, ⵜⵏⴱⴾⵜ, Tin Buqt a city in Mali, situated north of the Niger River. The town is the capital of the Tombouctou Region, one of the eight administrativ ...
in the 15th century. These were used primarily for irrigation and transport. Sunni Ali also attempted to construct a canal from the
Niger River The Niger River ( ; ) is the main river of West Africa, extending about . Its drainage basin is in area. Its source is in the Guinea Highlands in south-eastern Guinea near the Sierra Leone border. It runs in a crescent shape through ...
to
Walata , settlement_type = Commune and town , image_skyline = Oualata 03.jpg , imagesize = 300px , image_caption = View of the town looking in a southeasterly direction , imag ...
to facilitate conquest of the city but his progress was halted when he went to war with the
Mossi Kingdoms The Mossi Kingdoms, sometimes referred to as the Mossi Empire, were a group of powerful kingdoms in modern-day Burkina Faso which dominated the region of the upper Volta river for hundreds of years. The largest Mossi kingdoms was that of Ouagad ...
.


Early modern period

Around 1500–1800 the first summit level canal to use pound locks in Europe was the Briare Canal connecting the
Loire The Loire (, also ; ; oc, Léger, ; la, Liger) is the longest river in France and the 171st longest in the world. With a length of , it drains , more than a fifth of France's land, while its average discharge is only half that of the Rhône ...
and Seine (1642), followed by the more ambitious Canal du Midi (1683) connecting the Atlantic to the Mediterranean. This included a staircase of 8 locks at Béziers, a tunnel, and three major aqueducts. Canal building progressed steadily in Germany in the 17th and 18th centuries with three great rivers, the
Elbe The Elbe (; cs, Labe ; nds, Ilv or ''Elv''; Upper and dsb, Łobjo) is one of the major rivers of Central Europe. It rises in the Giant Mountains of the northern Czech Republic before traversing much of Bohemia (western half of the Czech Re ...
, Oder and
Weser The Weser () is a river of Lower Saxony in north-west Germany. It begins at Hannoversch Münden through the confluence of the Werra and Fulda. It passes through the Hanseatic city of Bremen. Its mouth is further north against the ports o ...
being linked by canals. In post-Roman Britain, the first early modern period canal built appears to have been the
Exeter Canal The Exeter Ship Canal, also known as the Exeter Canal is a canal leading from (and beside) the River Exe to Exeter Quay in the city of Exeter, Devon, England. It was first constructed in the 1560s predating the "canal mania" period and is one o ...
, which was surveyed in 1563, and open in 1566.Exeter history by www.exeter.gov.uk, .pdf fil
Exeter Ship Canal, The First Four Hundred Years
, accessdate=13 September 2013
The oldest canal in the European settlements of North America, technically a
mill race A mill race, millrace or millrun, mill lade (Scotland) or mill leat (Southwest England) is the current of water that turns a water wheel, or the channel ( sluice) conducting water to or from a water wheel. Compared with the broad waters of a m ...
built for industrial purposes, is
Mother Brook Mother Brook is a stream that flows from the Charles River in Dedham, Massachusetts, to the Neponset River in the Hyde Park section of Boston, Massachusetts. Mother Brook was also known variously as East Brook and Mill Creek in earlier times. ...
between the Boston, Massachusetts neighbourhoods of Dedham and Hyde Park connecting the higher waters of the
Charles River The Charles River ( Massachusett: ''Quinobequin)'' (sometimes called the River Charles or simply the Charles) is an river in eastern Massachusetts. It flows northeast from Hopkinton to Boston along a highly meandering route, that doubles b ...
and the mouth of the
Neponset River The Neponset River is a river in eastern Massachusetts in the United States. Its headwaters are at the Neponset Reservoir in Foxborough, near Gillette Stadium. From there, the Neponset meanders generally northeast for about to its mouth at ...
and the sea. It was constructed in 1639 to provide water power for mills. In Russia, the
Volga–Baltic Waterway The Volga–Baltic Waterway (Volgobalt, Волгобалт), formerly known as the Mariinsk Canal System (Russian: Мариинская водная система), is a series of canals and rivers in Russia which link the Volga with the Balti ...
, a nationwide canal system connecting the
Baltic Sea The Baltic Sea is an arm of the Atlantic Ocean that is enclosed by Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russia, Sweden and the North and Central European Plain. The sea stretches from 53°N to 66°N latitude and ...
and
Caspian Sea The Caspian Sea is the world's largest inland body of water, often described as the world's largest lake or a full-fledged sea. An endorheic basin, it lies between Europe and Asia; east of the Caucasus, west of the broad steppe of Central Asia ...
via the
Neva The Neva (russian: Нева́, ) is a river in northwestern Russia flowing from Lake Ladoga through the western part of Leningrad Oblast (historical region of Ingria) to the Neva Bay of the Gulf of Finland. Despite its modest length of , it ...
and
Volga The Volga (; russian: Во́лга, a=Ru-Волга.ogg, p=ˈvoɫɡə) is the longest river in Europe. Situated in Russia, it flows through Central Russia to Southern Russia and into the Caspian Sea. The Volga has a length of , and a catchm ...
rivers, was opened in 1718.


Industrial Revolution

* See also: History of the British canal system * See also:
History of turnpikes and canals in the United States The history of turnpikes and canals in the United States began with work attempted and accomplished in the original thirteen colonies, predicated on European technology. After gaining independence, the United States grew westward, crossing the A ...
The modern canal system was mainly a product of the 18th century and early 19th century. It came into being because the
Industrial Revolution The Industrial Revolution was the transition to new manufacturing processes in Great Britain, continental Europe, and the United States, that occurred during the period from around 1760 to about 1820–1840. This transition included going f ...
(which began in Britain during the mid-18th century) demanded an economic and reliable way to transport goods and commodities in large quantities. By the early 18th century, river navigations such as the
Aire and Calder Navigation The Aire and Calder Navigation is the canalised section of the Rivers Aire and Calder in West Yorkshire, England. The first improvements to the rivers above Knottingley were completed in 1704 when the Aire was made navigable to Leeds and the ...
were becoming quite sophisticated, with
pound lock A lock is a device used for raising and lowering boats, ships and other watercraft between stretches of water of different levels on river and canal waterways. The distinguishing feature of a lock is a fixed chamber in which the water lev ...
s and longer and longer "cuts" (some with intermediate locks) to avoid circuitous or difficult stretches of river. Eventually, the experience of building long multi-level cuts with their own locks gave rise to the idea of building a "pure" canal, a waterway designed on the basis of where goods needed to go, not where a river happened to be. The claim for the first pure canal in
Great Britain Great Britain is an island in the North Atlantic Ocean off the northwest coast of continental Europe. With an area of , it is the largest of the British Isles, the largest European island and the ninth-largest island in the world. It i ...
is debated between "Sankey" and "Bridgewater" supporters.Burton, (1995). Chapter 3: ''Building the Canals'' The first true canal in what is now the United Kingdom was the
Newry Canal The Newry Canal, located in Northern Ireland, was built to link the Tyrone coalfields (via Lough Neagh and the River Bann) to the Irish Sea at Carlingford Lough near Newry. It was the first summit level canal to be built in Ireland or Great ...
in
Northern Ireland Northern Ireland ( ga, Tuaisceart Éireann ; sco, label= Ulster-Scots, Norlin Airlann) is a part of the United Kingdom, situated in the north-east of the island of Ireland, that is variously described as a country, province or region. Nort ...
constructed by Thomas Steers in 1741. The Sankey Brook Navigation, which connected St Helens with the
River Mersey The River Mersey () is in North West England. Its name derives from Old English and means "boundary river", possibly referring to its having been a border between the ancient kingdoms of Mercia and Northumbria. For centuries it has formed par ...
, is often claimed as the first modern "purely artificial" canal because although originally a scheme to make the Sankey Brook navigable, it included an entirely new artificial channel that was effectively a canal along the Sankey Brook valley.Rolt, ''Inland Waterways'' However, "Bridgewater" supporters point out that the last quarter-mile of the navigation is indeed a canalized stretch of the Brook, and that it was the Bridgewater Canal (less obviously associated with an existing river) that captured the popular imagination and inspired further canals. In the mid-eighteenth century the 3rd Duke of Bridgewater, who owned a number of
coal mine Coal mining is the process of extracting coal from the ground. Coal is valued for its energy content and since the 1880s has been widely used to generate electricity. Steel and cement industries use coal as a fuel for extraction of iron from ...
s in northern England, wanted a reliable way to transport his coal to the rapidly industrializing city of
Manchester Manchester () is a city in Greater Manchester, England. It had a population of 552,000 in 2021. It is bordered by the Cheshire Plain to the south, the Pennines to the north and east, and the neighbouring city of Salford to the west. The t ...
. He commissioned the engineer
James Brindley James Brindley (1716 – 27 September 1772) was an English engineer. He was born in Tunstead, Derbyshire, and lived much of his life in Leek, Staffordshire, becoming one of the most notable engineers of the 18th century. Early life Born i ...
to build a canal for that purpose. Brindley's design included an aqueduct carrying the canal over the River Irwell. This was an engineering wonder which immediately attracted tourists. The construction of this canal was funded entirely by the Duke and was called the
Bridgewater Canal The Bridgewater Canal connects Runcorn, Manchester and Leigh, in North West England. It was commissioned by Francis Egerton, 3rd Duke of Bridgewater, to transport coal from his mines in Worsley to Manchester. It was opened in 1761 from Wor ...
. It opened in 1761 and was the first major British canal. The new canals proved highly successful. The boats on the canal were horse-drawn with a
towpath A towpath is a road or trail on the bank of a river, canal, or other inland waterway. The purpose of a towpath is to allow a land vehicle, beasts of burden, or a team of human pullers to tow a boat, often a barge. This mode of transport w ...
alongside the canal for the horse to walk along. This horse-drawn system proved to be highly economical and became standard across the British canal network. Commercial horse-drawn canal boats could be seen on the UK's canals until as late as the 1950s, although by then diesel-powered boats, often towing a second unpowered boat, had become standard. The canal boats could carry thirty tons at a time with only one horse pulling – more than ten times the amount of cargo per horse that was possible with a cart. Because of this huge increase in supply, the Bridgewater canal reduced the price of coal in Manchester by nearly two-thirds within just a year of its opening. The Bridgewater was also a huge financial success, with it earning what had been spent on its construction within just a few years. This success proved the viability of canal transport, and soon industrialists in many other parts of the country wanted canals. After the Bridgewater canal, early canals were built by groups of private individuals with an interest in improving communications. In Staffordshire the famous potter
Josiah Wedgwood Josiah Wedgwood (12 July 1730 – 3 January 1795) was an English potter, entrepreneur and abolitionist. Founding the Wedgwood company in 1759, he developed improved pottery bodies by systematic experimentation, and was the leader in the indus ...
saw an opportunity to bring bulky cargoes of clay to his factory doors and to transport his fragile finished goods to market in Manchester,
Birmingham Birmingham ( ) is a City status in the United Kingdom, city and metropolitan borough in the metropolitan county of West Midlands (county), West Midlands in England. It is the second-largest city in the United Kingdom with a population of 1. ...
or further away, by water, minimizing breakages. Within just a few years of the Bridgewater's opening, an embryonic national canal network came into being, with the construction of canals such as the
Oxford Canal The Oxford Canal is a narrowboat canal in central England linking the City of Oxford with the Coventry Canal at Hawkesbury (just north of Coventry and south of Bedworth) via Banbury and Rugby. Completed in 1790, it connects to the River Thames ...
and the
Trent & Mersey Canal The Trent and Mersey Canal is a canal in Derbyshire, Staffordshire and Cheshire in north-central England. It is a "narrow canal" for the vast majority of its length, but at the extremities to the east of Burton upon Trent and north of Midd ...
. The new canal system was both cause and effect of the rapid industrialization of
The Midlands The Midlands (also referred to as Central England) are a part of England that broadly correspond to the Kingdom of Mercia of the Early Middle Ages, bordered by Wales, Northern England and Southern England. The Midlands were important in the In ...
and the north. The period between the 1770s and the 1830s is often referred to as the "Golden Age" of British canals. For each canal, an Act of Parliament was necessary to authorize construction, and as people saw the high incomes achieved from canal tolls, canal proposals came to be put forward by investors interested in profiting from dividends, at least as much as by people whose businesses would profit from cheaper transport of raw materials and finished goods. In a further development, there was often out-and-out speculation, where people would try to buy shares in a newly floated company to sell them on for an immediate profit, regardless of whether the canal was ever profitable, or even built. During this period of "
canal mania Canal Mania was the period of intense canal building in England and Wales between the 1790s and 1810s, and the speculative frenzy that ensued in the early 1790s.British Canals. The Standard History. Joseph Boughey and Charles Hadfield. Backgro ...
", huge sums were invested in canal building, and although many schemes came to nothing, the canal system rapidly expanded to nearly 4,000 miles (over 6,400 kilometres) in length. Many rival canal companies were formed and competition was rampant. Perhaps the best example was
Worcester Bar Worcester may refer to: Places United Kingdom * Worcester, England, a city and the county town of Worcestershire in England ** Worcester (UK Parliament constituency), an area represented by a Member of Parliament * Worcester Park, London, Englan ...
in Birmingham, a point where the Worcester and Birmingham Canal and the Birmingham Canal Navigations Main Line were only seven feet apart. For many years, a dispute about tolls meant that goods travelling through Birmingham had to be portaged from boats in one canal to boats in the other. Canal companies were initially chartered by individual states in the United States. These early canals were constructed, owned, and operated by private joint-stock companies. Four were completed when the
War of 1812 The War of 1812 (18 June 1812 – 17 February 1815) was fought by the United States, United States of America and its Indigenous peoples of the Americas, indigenous allies against the United Kingdom of Great Britain and Ireland, United Kingdom ...
broke out; these were the
South Hadley Canal The South Hadley Canal was a canal along the Connecticut River in South Hadley, Massachusetts. It was the earliest navigable canal in the United States, with operation commencing in 1795. * It has been listed on the National Register of Historic ...
(opened 1795) in
Massachusetts Massachusetts (Massachusett: ''Muhsachuweesut Massachusett_writing_systems.html" ;"title="nowiki/> məhswatʃəwiːsət.html" ;"title="Massachusett writing systems">məhswatʃəwiːsət">Massachusett writing systems">məhswatʃəwiːsət'' En ...
,
Santee Canal The Santee Canal was one of the earliest canals built in the United States. It was built to provide a direct water route between Charleston and Columbia, the new South Carolina state capital. It was named to the National Register of Historic Plac ...
(opened 1800) in
South Carolina )'' Animis opibusque parati'' ( for, , Latin, Prepared in mind and resources, links=no) , anthem = " Carolina";" South Carolina On My Mind" , Former = Province of South Carolina , seat = Columbia , LargestCity = Charleston , LargestMetro = ...
, the
Middlesex Canal The Middlesex Canal was a 27-mile (44-kilometer) barge canal connecting the Merrimack River with the port of Boston. When operational it was 30 feet (9.1 m) wide, and 3 feet (0.9 m) deep, with 20 locks, each 80 feet (24 m) long and between 10 and ...
(opened 1802) also in Massachusetts, and the Dismal Swamp Canal (opened 1805) in
Virginia Virginia, officially the Commonwealth of Virginia, is a state in the Mid-Atlantic and Southeastern regions of the United States, between the Atlantic Coast and the Appalachian Mountains. The geography and climate of the Commonwealth ar ...
. The
Erie Canal The Erie Canal is a historic canal in upstate New York that runs east-west between the Hudson River and Lake Erie. Completed in 1825, the canal was the first navigable waterway connecting the Atlantic Ocean to the Great Lakes, vastly reducing t ...
(opened 1825) was chartered and owned by the state of New York and financed by bonds bought by private investors. The Erie canal runs about from
Albany, New York Albany ( ) is the capital of the U.S. state of New York, also the seat and largest city of Albany County. Albany is on the west bank of the Hudson River, about south of its confluence with the Mohawk River, and about north of New York C ...
, on the
Hudson River The Hudson River is a river that flows from north to south primarily through eastern New York. It originates in the Adirondack Mountains of Upstate New York and flows southward through the Hudson Valley to the New York Harbor between N ...
to
Buffalo, New York Buffalo is the second-largest city in the U.S. state of New York (behind only New York City) and the seat of Erie County. It is at the eastern end of Lake Erie, at the head of the Niagara River, and is across the Canadian border from Sou ...
, at
Lake Erie Lake Erie ( "eerie") is the fourth largest lake by surface area of the five Great Lakes in North America and the eleventh-largest globally. It is the southernmost, shallowest, and smallest by volume of the Great Lakes and therefore also h ...
. The Hudson River connects Albany to the Atlantic port of
New York City New York, often called New York City or NYC, is the most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the most densely populated major city in the Un ...
and the Erie Canal completed a navigable water route from the
Atlantic Ocean The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the " Old World" of Africa, Europe ...
to the
Great Lakes The Great Lakes, also called the Great Lakes of North America, are a series of large interconnected freshwater lakes in the mid-east region of North America that connect to the Atlantic Ocean via the Saint Lawrence River. There are five lak ...
. The canal contains 36 locks and encompasses a total elevation differential of around 565 ft. (169 m). The Erie Canal with its easy connections to most of the U.S. mid-west and New York City soon quickly paid back all its invested capital (US$7 million) and started turning a profit. By cutting transportation costs in half or more it became a large profit center for Albany and New York City as it allowed the cheap transportation of many of the agricultural products grown in the mid west of the United States to the rest of the world. From New York City these agricultural products could easily be shipped to other U.S. states or overseas. Assured of a market for their farm products the settlement of the U.S. mid-west was greatly accelerated by the Erie Canal. The profits generated by the Erie Canal project started a canal building boom in the United States that lasted until about 1850 when
railroad Rail transport (also known as train transport) is a means of transport that transfers passengers and goods on wheeled vehicles running on rails, which are incorporated in tracks. In contrast to road transport, where the vehicles run on a pre ...
s started becoming seriously competitive in price and convenience. The Blackstone Canal (finished in 1828) in Massachusetts and
Rhode Island Rhode Island (, like ''road'') is a state in the New England region of the Northeastern United States. It is the smallest U.S. state by area and the seventh-least populous, with slightly fewer than 1.1 million residents as of 2020, but it ...
fulfilled a similar role in the early industrial revolution between 1828 and 1848. The
Blackstone Valley The Blackstone Valley or Blackstone River Valley is a region of Massachusetts and Rhode Island. It was a major factor in the American Industrial Revolution. It makes up part of the Blackstone River Valley National Heritage Corridor and Nationa ...
was a major contributor of the American Industrial Revolution where
Samuel Slater Samuel Slater (June 9, 1768 – April 21, 1835) was an early English-American industrialist known as the "Father of the American Industrial Revolution" (a phrase coined by Andrew Jackson) and the "Father of the American Factory System". In the ...
built his first textile mill.


Power canals

* See also: Power canal A power canal refers to a canal used for hydraulic power generation, rather than for transport. Nowadays power canals are built almost exclusively as parts of
hydroelectric power station Hydroelectricity, or hydroelectric power, is electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4500 TWh in 2020, which is more than all other renewable sources combined an ...
s. Parts of the United States, particularly in the Northeast, had enough fast-flowing rivers that
water power Hydropower (from el, ὕδωρ, "water"), also known as water power, is the use of falling or fast-running water to produce electricity or to power machines. This is achieved by converting the gravitational potential or kinetic energy of a ...
was the primary means of powering factories (usually textile mills) until after the
American Civil War The American Civil War (April 12, 1861 – May 26, 1865; also known by other names) was a civil war in the United States. It was fought between the Union ("the North") and the Confederacy ("the South"), the latter formed by states ...
. For example,
Lowell, Massachusetts Lowell () is a city in Massachusetts, in the United States. Alongside Cambridge, It is one of two traditional seats of Middlesex County. With an estimated population of 115,554 in 2020, it was the fifth most populous city in Massachusetts as of ...
, considered to be "The Cradle of the American Industrial Revolution," has of canals, built from around 1790 to 1850, that provided water power and a means of transportation for the city. The output of the system is estimated at 10,000
horsepower Horsepower (hp) is a unit of measurement of power, or the rate at which work is done, usually in reference to the output of engines or motors. There are many different standards and types of horsepower. Two common definitions used today are t ...
. Other cities with extensive power canal systems include Lawrence, Massachusetts, Holyoke, Massachusetts,
Manchester, New Hampshire Manchester is a city in Hillsborough County, New Hampshire, United States. It is the most populous city in New Hampshire. At the 2020 census, the city had a population of 115,644. Manchester is, along with Nashua, one of two seats of New Ha ...
, and
Augusta, Georgia Augusta ( ), officially Augusta–Richmond County, is a consolidated city-county on the central eastern border of the U.S. state of Georgia. The city lies across the Savannah River from South Carolina at the head of its navigable portion. Georgi ...
. The most notable power canal was built in 1862 for the
Niagara Falls Hydraulic Power and Manufacturing Company Niagara Falls Hydraulic Power & Manufacturing Company was an American company, based in Niagara Falls, New York that was the first company to generate hydroelectric power from Niagara Falls in 1882. The company built upon several predecessor com ...
.


19th century

Competition, from railways from the 1830s and roads in the 20th century, made the smaller canals obsolete for most commercial transport, and many of the British canals fell into decay. Only the Manchester Ship Canal and the Aire and Calder Canal bucked 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 such canals, since access to markets was available. The Erie Canal (as well as other canals) was instrumental in lowering the differences in commodity prices between these various markets across America. The canals caused price convergence between different regions because of their reduction in transportation costs, which allowed Americans to ship and buy goods from farther distances much cheaper. Ohio built many miles of canal, Indiana had working canals for a few decades, and the
Illinois and Michigan Canal The Illinois and Michigan Canal connected the Great Lakes to the Mississippi River and the Gulf of Mexico. In Illinois, it ran from the Chicago River in Bridgeport, Chicago to the Illinois River at LaSalle-Peru. The canal crossed the Chicago Por ...
connected the Great Lakes to the
Mississippi River The Mississippi River is the second-longest river and chief river of the second-largest drainage system in North America, second only to the Hudson Bay drainage system. From its traditional source of Lake Itasca in northern Minnesota, it fl ...
system until replaced by a channelized river waterway. Three major canals with very different purposes were built in what is now Canada. The first
Welland Canal The Welland Canal is a ship canal in Ontario, Canada, connecting Lake Ontario and Lake Erie. It forms a key section of the St. Lawrence Seaway and Great Lakes Waterway. Traversing the Niagara Peninsula from Port Weller in St. Catharines ...
, which opened in 1829 between
Lake Ontario Lake Ontario is one of the five Great Lakes of North America. It is bounded on the north, west, and southwest by the Canadian province of Ontario, and on the south and east by the U.S. state of New York. The Canada–United States border ...
and Lake Erie, bypassing
Niagara Falls Niagara Falls () is a group of three waterfalls at the southern end of Niagara Gorge, spanning the border between the province of Ontario in Canada and the state of New York in the United States. The largest of the three is Horseshoe Fall ...
and the
Lachine Canal The Lachine Canal ( in French) is a canal passing through the southwestern part of the Island of Montreal, Quebec, Canada, running 14.5 kilometres (9 miles) from the Old Port of Montreal to Lake Saint-Louis, through the boroughs of Lachine, ...
(1825), which allowed ships to skirt the nearly impassable rapids on the
St. Lawrence River The St. Lawrence River (french: Fleuve Saint-Laurent, ) is a large river in the middle latitudes of North America. Its headwaters begin flowing from Lake Ontario in a (roughly) northeasterly direction, into the Gulf of St. Lawrence, connecting ...
at
Montreal Montreal ( ; officially Montréal, ) is the second-most populous city in Canada and most populous city in the Canadian province of Quebec. Founded in 1642 as '' Ville-Marie'', or "City of Mary", it is named after Mount Royal, the triple ...
, were built for commerce. The Rideau Canal, completed in 1832, connects Ottawa on the Ottawa River to
Kingston, Ontario Kingston is a city in Ontario, Canada. It is located on the north-eastern end of Lake Ontario, at the beginning of the St. Lawrence River and at the mouth of the Cataraqui River (south end of the Rideau Canal). The city is midway between To ...
on Lake Ontario. The Rideau Canal was built as a result of the War of 1812 to provide military transportation between the British colonies of
Upper Canada The Province of Upper Canada (french: link=no, province du Haut-Canada) was a part of British Canada established in 1791 by the Kingdom of Great Britain, to govern the central third of the lands in British North America, formerly part of th ...
and
Lower Canada The Province of Lower Canada (french: province du Bas-Canada) was a British colony on the lower Saint Lawrence River and the shores of the Gulf of Saint Lawrence (1791–1841). It covered the southern portion of the current Province of Quebec an ...
as an alternative to part of the St. Lawrence River, which was susceptible to blockade by the United States. In France, a steady linking of all the river systems –
Rhine ), Surselva, Graubünden, Switzerland , source1_coordinates= , source1_elevation = , source2 = Rein Posteriur/Hinterrhein , source2_location = Paradies Glacier, Graubünden, Switzerland , source2_coordinates= , so ...
,
Rhône The Rhône ( , ; wae, Rotten ; frp, Rôno ; oc, Ròse ) is a major river in France and Switzerland, rising in the Alps and flowing west and south through Lake Geneva and southeastern France before discharging into the Mediterranean Sea. At Ar ...
,
Saône The Saône ( , ; frp, Sona; lat, Arar) is a river in eastern France. It is a right tributary of the Rhône, rising at Vioménil in the Vosges department and joining the Rhône in Lyon, at the southern end of the Presqu'île. The name ...
and Seine – and the North Sea was boosted in 1879 by the establishment of the Freycinet gauge, which specified the minimum size of locks. Canal traffic doubled in the first decades of the 20th century. Many notable sea canals were completed in this period, starting with the Suez Canal (1869) – which carries tonnage many times that of most other canals – and the
Kiel Canal The Kiel Canal (german: Nord-Ostsee-Kanal, literally "North- oEast alticSea canal", formerly known as the ) is a long freshwater canal in the German state of Schleswig-Holstein. The canal was finished in 1895, but later widened, and links the N ...
(1897), though the Panama Canal was not opened until 1914. In the 19th century, a number of canals were built in Japan including the Biwako canal and the Tone canal. These canals were partially built with the help of engineers from the Netherlands and other countries. A major question was how to connect the Atlantic and the Pacific with a canal through narrow
Central America Central America ( es, América Central or ) is a subregion of the Americas. Its boundaries are defined as bordering the United States to the north, Colombia to the south, the Caribbean Sea to the east, and the Pacific Ocean to the west. ...
. (The
Panama Railroad The Panama Canal Railway ( es, Ferrocarril de Panamá) is a railway line linking the Atlantic Ocean to the Pacific Ocean in Central America. The route stretches across the Isthmus of Panama from Colón (Atlantic) to Balboa (Pacific, near P ...
opened in 1855.) The original proposal was for a sea-level canal through what is today Nicaragua, taking advantage of the relatively large
Lake Nicaragua Lake Nicaragua or Cocibolca or Granada ( es, Lago de Nicaragua, , or ) is a freshwater lake in Nicaragua. Of tectonic origin and with an area of , it is the largest lake in Central America, the 19th largest lake in the world (by area) and the t ...
. This canal has never been built in part because of political instability, which scared off potential investors. It remains an active project (the geography hasn't changed), and in the 2010s Chinese involvement was developing. The second choice for a Central American canal was a
Panama canal The Panama Canal ( es, Canal de Panamá, link=no) is an artificial waterway in Panama that connects the Atlantic Ocean with the Pacific Ocean and divides North and South America. The canal cuts across the Isthmus of Panama and is a condui ...
. The De Lessups company, which ran the Suez Canal, first attempted to build a Panama Canal in the 1880s. The difficulty of the terrain and weather (rain) encountered caused the company to go bankrupt. High worker mortality from disease also discouraged further investment in the project. DeLessup's abandoned excavating equipment sits, isolated decaying machines, today tourist attractions. Twenty years later, an expansionist United States, that just acquired colonies after defeating Spain in the 1898
Spanish–American War , partof = the Philippine Revolution, the decolonization of the Americas, and the Cuban War of Independence , image = Collage infobox for Spanish-American War.jpg , image_size = 300px , caption = (cloc ...
, and whose Navy became more important, decided to reactivate the project. The United States and Colombia did not reach agreement on the terms of a canal treaty (see
Hay–Herrán Treaty The Hay–Herrán Treaty was a treaty signed on January 22, 1903, between United States Secretary of State John M. Hay of the United States and Tomás Herrán of Colombia. Had it been ratified, it would have allowed the United States a renewab ...
). Panama, which did not have (and still does not have) a land connection with the rest of Colombia, was already thinking of independence. In 1903 the United States, with support from Panamanians who expected the canal to provide substantial wages, revenues, and markets for local goods and services. transform the country, took Panama province away from Colombia, and set up a puppet republic (
Panama Panama ( , ; es, link=no, Panamá ), officially the Republic of Panama ( es, República de Panamá), is a transcontinental country spanning the southern part of North America and the northern part of South America. It is bordered by Co ...
). Its currency, the Balboa – a name that suggests the country began as a way to get from one hemisphere to the other – was a replica of the
US dollar The United States dollar ( symbol: $; code: USD; also abbreviated US$ or U.S. Dollar, to distinguish it from other dollar-denominated currencies; referred to as the dollar, U.S. dollar, American dollar, or colloquially buck) is the officia ...
. The US dollar was and remains
legal tender Legal tender is a form of money that courts of law are required to recognize as satisfactory payment for any monetary debt. Each jurisdiction determines what is legal tender, but essentially it is anything which when offered ("tendered") in ...
(used as currency). A U.S. military zone, the
Canal Zone The Panama Canal Zone ( es, Zona del Canal de Panamá), also simply known as the Canal Zone, was an unincorporated territory of the United States, located in the Isthmus of Panama, that existed from 1903 to 1979. It was located within the terri ...
, wide, with U.S. military stationed there ( bases, 2 TV stations, channels 8 and 10, Pxs, a U.S.-style high school), split Panama in half. The Canal – a major engineering project – was built. The U.S. did not feel that conditions were stable enough to withdraw until 1979. The withdrawal from Panama contributed to President
Jimmy Carter James Earl Carter Jr. (born October 1, 1924) is an American politician who served as the 39th president of the United States from 1977 to 1981. A member of the Democratic Party, he previously served as the 76th governor of Georgia from 1 ...
's defeat in 1980.


Modern uses

Large-scale ship canals such as the Panama Canal and Suez Canal continue to operate for cargo transportation, as do European barge canals. Due to
globalization Globalization, or globalisation (English in the Commonwealth of Nations, Commonwealth English; American and British English spelling differences#-ise, -ize (-isation, -ization), see spelling differences), is the process of foreign relation ...
, they are becoming increasingly important, resulting in expansion projects such as the
Panama Canal expansion project The Panama Canal expansion project ( es, ampliación del Canal de Panamá), also called the Third Set of Locks Project, doubled the capacity of the Panama Canal by adding a new lane of traffic allowing for a larger number of ships, and increasin ...
. The expanded canal began commercial operation on 26 June 2016. The new set of locks allow transit of larger,
Post-Panamax Panamax and New Panamax (or Neopanamax) are terms for the size limits for ships travelling through the Panama Canal. The limits and requirements are published by the Panama Canal Authority (ACP) in a publication titled "Vessel Requirements". ...
and New Panamax ships. The narrow early industrial canals, however, have ceased to carry significant amounts of trade and many have been abandoned to navigation, but may still be used as a system for transportation of untreated water. In some cases railways have been built along the canal route, an example being the
Croydon Canal The Croydon Canal ran from Croydon, via Forest Hill, to the Grand Surrey Canal at New Cross in south London, England. It opened in 1809 and closed in 1836, the first canal to be abandoned by an Act of Parliament. History Authorised by an Ac ...
. A movement that began in Britain and France to use the early industrial canals for pleasure boats, such as
hotel barge A hotel barge (fr. ''péniche hôtel'') is a barge that has been built or converted to serve as a hotel or other kind of lodging. Hotel barges are generally found on rivers and canals in Europe, and may be used for river cruises or permanently mo ...
s, has spurred rehabilitation of stretches of historic canals. In some cases, abandoned canals such as the Kennet and Avon Canal have been restored and are now used by pleasure boaters. In Britain, canalside housing has also proven popular in recent years. The Seine–Nord Europe Canal is being developed into a major transportation waterway, linking
France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of overseas regions and territories in the Americas and the Atlantic, Pacific and Indian Oceans. Its metropolitan area ...
with
Belgium Belgium, ; french: Belgique ; german: Belgien officially the Kingdom of Belgium, is a country in Northwestern Europe. The country is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeast, France to th ...
,
Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...
, and the
Netherlands ) , anthem = ( en, "William of Nassau") , image_map = , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of the Netherlands , established_title = Before independence , established_date = Spanish Netherl ...
. Canals have found another use in the 21st century, as
easement An easement is a nonpossessory right to use and/or enter onto the real property of another without possessing it. It is "best typified in the right of way which one landowner, A, may enjoy over the land of another, B". An easement is a propert ...
s for the installation of fibre optic
telecommunications Telecommunication is the transmission of information by various types of technologies over wire, radio, optical, or other electromagnetic systems. It has its origin in the desire of humans for communication over a distance greater than that fe ...
network cabling, avoiding having them buried in roadways while facilitating access and reducing the hazard of being damaged from digging equipment. Canals are still used to provide water for agriculture. An extensive canal system exists within the
Imperial Valley , photo = Salton Sea from Space.jpg , photo_caption = The Imperial Valley below the Salton Sea. The US-Mexican border runs diagonally across the lower left of the image. , map_image = Newriverwatershed-1-.jpg , map_caption = Map of Imperial ...
in the Southern California desert to provide irrigation to agriculture within the area.


Cities on water

Canals are so deeply identified with
Venice Venice ( ; it, Venezia ; vec, Venesia or ) is a city in northeastern Italy and the capital of the Veneto region. It is built on a group of 118 small islands that are separated by canals and linked by over 400 bridges. The isla ...
that many canal cities have been nicknamed ''"the Venice of…"''. The city is built on marshy islands, with wooden piles supporting the buildings, so that the land is man-made rather than the waterways. The islands have a long history of settlement; by the 12th century, Venice was a powerful
city state A city-state is an independent sovereign city which serves as the center of political, economic, and cultural life over its contiguous territory. They have existed in many parts of the world since the dawn of history, including cities such as ...
.
Amsterdam Amsterdam ( , , , lit. ''The Dam on the River Amstel'') is the capital and most populous city of the Netherlands, with The Hague being the seat of government. It has a population of 907,976 within the city proper, 1,558,755 in the urban ar ...
was built in a similar way, with buildings on wooden piles. It became a city around 1300. Many Amsterdam canals were built as part of fortifications. They became '' grachten'' when the city was enlarged and houses were built alongside the water. Its nickname as the "Venice of the North" is shared with
Hamburg (male), (female) en, Hamburger(s), Hamburgian(s) , timezone1 = Central (CET) , utc_offset1 = +1 , timezone1_DST = Central (CEST) , utc_offset1_DST = +2 , postal ...
of Germany,
St. Petersburg Saint Petersburg ( rus, links=no, Санкт-Петербург, a=Ru-Sankt Peterburg Leningrad Petrograd Piter.ogg, r=Sankt-Peterburg, p=ˈsankt pʲɪtʲɪrˈburk), formerly known as Petrograd (1914–1924) and later Leningrad (1924–1991), i ...
of Russia and
Bruges Bruges ( , nl, Brugge ) is the capital and largest city of the province of West Flanders in the Flemish Region of Belgium, in the northwest of the country, and the sixth-largest city of the country by population. The area of the whole city a ...
of Belgium. Suzhou was dubbed the "Venice of the East" by Marco Polo during his travels there in the 13th century, with its modern canalside Pingjiang Road and
Shantang Street Shantang Street (; Suzhou Wu: Se daon ka, ), also known as Seven-mile Shantang (), is a street in northwestern Gusu District, Suzhou, Jiangsu, China. The street connects Changmen () in the east with Huqiu in the west, with a total length of abo ...
becoming major tourist attractions. Other nearby cities including
Nanjing Nanjing (; , Mandarin pronunciation: ), alternately romanized as Nanking, is the capital of Jiangsu province of the People's Republic of China. It is a sub-provincial city, a megacity, and the second largest city in the East China region. T ...
,
Shanghai Shanghai (; , , Standard Mandarin pronunciation: ) is one of the four direct-administered municipalities of the People's Republic of China (PRC). The city is located on the southern estuary of the Yangtze River, with the Huangpu River flowin ...
,
Wuxi Wuxi (, ) is a city in southern Jiangsu province, eastern China, by car to the northwest of downtown Shanghai, between Changzhou and Suzhou. In 2017 it had a population of 3,542,319, with 6,553,000 living in the entire prefecture-level city ar ...
,
Jiaxing Jiaxing (), alternately romanized as Kashing, is a prefecture-level city in northern Zhejiang province, China. Lying on the Grand Canal of China, Jiaxing borders Hangzhou to the southwest, Huzhou to the west, Shanghai to the northeast, and the p ...
, Huzhou,
Nantong Nantong (; alternate names: Nan-t'ung, Nantung, Tongzhou, or Tungchow; Qihai dialect: ) is a prefecture-level city in southeastern Jiangsu province of China, province, China. Located on the northern bank of the Yangtze River, near the river mouth. ...
, Taizhou,
Yangzhou Yangzhou, postal romanization Yangchow, is a prefecture-level city in central Jiangsu Province (Suzhong), East China. Sitting on the north bank of the Yangtze, it borders the provincial capital Nanjing to the southwest, Huai'an to the north ...
, and
Changzhou Changzhou ( Changzhounese: ''Zaon Tsei'', ) is a prefecture-level city in southern Jiangsu province, China. It was previously known as Yanling, Lanling and Jinling. Located on the southern bank of the Yangtze River, Changzhou borders the provin ...
are located along the lower mouth of the
Yangtze River The Yangtze or Yangzi ( or ; ) is the longest list of rivers of Asia, river in Asia, the list of rivers by length, third-longest in the world, and the longest in the world to flow entirely within one country. It rises at Jari Hill in th ...
and
Lake Tai Taihu (), also known as Lake Tai or Lake Taihu, is a lake in the Yangtze Delta and one of the largest freshwater lakes in China. The lake is in Jiangsu province and a significant part of its southern shore forms its border with Zhejiang. Wi ...
, yet another source of small rivers and creeks, which have been canalized and developed for centuries. Other cities with extensive canal networks include: Alkmaar,
Amersfoort Amersfoort () is a city and municipality in the province of Utrecht, Netherlands, about 20 km from the city of Utrecht and 40 km south east of Amsterdam. As of 1 December 2021, the municipality had a population of 158,531, making it the second- ...
,
Bolsward Bolsward (, West Frisian: ''Boalsert'') is a city in Súdwest-Fryslân in the province of Friesland, the Netherlands. Bolsward has a population of just under 10,200. It is located 10 km W.N.W. of Sneek. History The town is founded on thr ...
,
Brielle Brielle (), also called Den Briel in Dutch and Brill in English, is a town, municipality and historic seaport in the western Netherlands, in the province of South Holland, on the north side of the island of Voorne-Putten, at the mouth of the New ...
, Delft,
Den Bosch s-Hertogenbosch (), colloquially known as Den Bosch (), is a city and municipality in the Netherlands with a population of 157,486. It is the capital of the province of North Brabant and its fourth largest by population. The city is south of th ...
,
Dokkum Dokkum is a Dutch fortified city in the municipality of Noardeast-Fryslân in the province of Friesland. It has 12,669 inhabitants (February 8, 2020). The fortifications of Dokkum are well preserved and are known as the ''bolwerken'' (bulwarks). ...
,
Dordrecht Dordrecht (), historically known in English as Dordt (still colloquially used in Dutch, ) or Dort, is a city and municipality in the Western Netherlands, located in the province of South Holland. It is the province's fifth-largest city after R ...
,
Enkhuizen Enkhuizen () is a municipality and a city in the Netherlands, in the province of North Holland and the region of West-Frisia. History Enkhuizen, like Hoorn and Amsterdam, was one of the harbor-towns of the VOC, from where overseas trade w ...
,
Franeker Franeker (; fry, Frjentsjer) is one of the eleven historical cities of Friesland and capital of the municipality of Waadhoeke. It is located north of the Van Harinxmakanaal and about 20 km west of Leeuwarden. As of 1 January 2014, it had 12 ...
, Gouda, Haarlem, Harlingen,
Leeuwarden Leeuwarden (; fy, Ljouwert, longname=yes /; Stadsfries dialects, Town Frisian: ''Liwwadden''; Leeuwarder dialect: ''Leewarden'') is a List of cities in the Netherlands by province, city and Municipalities of the Netherlands, municipality in Fri ...
,
Leiden Leiden (; in English and archaic Dutch also Leyden) is a city and municipality in the province of South Holland, Netherlands. The municipality of Leiden has a population of 119,713, but the city forms one densely connected agglomeration wi ...
,
Sneek Sneek (; fy, Snits) is a city southwest of Leeuwarden and the seat of the former municipality of Sneek in the province of Friesland, Netherlands. As of 2011 it is the seat of the municipality of Súdwest-Fryslân (Southwest Friesland). T ...
and
Utrecht Utrecht ( , , ) is the fourth-largest city and a municipality of the Netherlands, capital and most populous city of the province of Utrecht. It is located in the eastern corner of the Randstad conurbation, in the very centre of mainland Net ...
in the Netherlands;
Brugge Bruges ( , nl, Brugge ) is the capital and largest city of the province of West Flanders in the Flemish Region of Belgium, in the northwest of the country, and the sixth-largest city of the country by population. The area of the whole city a ...
and
Gent Gent is a shortened form of the word gentleman. It may also refer to: * Ghent (Dutch language, Dutch: Gent), a Belgian city ** K.A.A. Gent, a football club from Ghent ** K.R.C. Gent, a football club from Ghent ** Gent RFC, a rugby club in Ghen ...
in Flanders, Belgium;
Birmingham Birmingham ( ) is a City status in the United Kingdom, city and metropolitan borough in the metropolitan county of West Midlands (county), West Midlands in England. It is the second-largest city in the United Kingdom with a population of 1. ...
in England;
Saint Petersburg Saint Petersburg ( rus, links=no, Санкт-Петербург, a=Ru-Sankt Peterburg Leningrad Petrograd Piter.ogg, r=Sankt-Peterburg, p=ˈsankt pʲɪtʲɪrˈburk), formerly known as Petrograd (1914–1924) and later Leningrad (1924–1991), i ...
in Russia; Bydgoszcz, Gdańsk, Szczecin and
Wrocław Wrocław (; german: Breslau, or . ; Silesian German: ''Brassel'') is a city in southwestern Poland and the largest city in the historical region of Silesia. It lies on the banks of the River Oder in the Silesian Lowlands of Central Europe, rou ...
in Poland; Aveiro in Portugal;
Hamburg (male), (female) en, Hamburger(s), Hamburgian(s) , timezone1 = Central (CET) , utc_offset1 = +1 , timezone1_DST = Central (CEST) , utc_offset1_DST = +2 , postal ...
and
Berlin Berlin ( , ) is the capital and List of cities in Germany by population, largest city of Germany by both area and population. Its 3.7 million inhabitants make it the European Union's List of cities in the European Union by population within ci ...
in Germany;
Fort Lauderdale A fortification is a military construction or building designed for the defense of territories in warfare, and is also used to establish rule in a region during peacetime. The term is derived from Latin ''fortis'' ("strong") and ''facere'' ...
and
Cape Coral Cape Coral is a city located in Lee County, Florida, United States, on the Gulf of Mexico. Founded in 1957 and developed as a planned community, the city's population has grown to 194,016 as of the 2020 Census, a rise of 26% from the 2010 Census ...
in
Florida Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, and to ...
, United States,
Wenzhou Wenzhou (pronounced ; Wenzhounese: Yuziou y33–11 tɕiɤu33–32 ), historically known as Wenchow is a prefecture-level city in southeastern Zhejiang province in the People's Republic of China. Wenzhou is located at the extreme south east ...
in China,
Cần Thơ Cần Thơ, also written as Can Tho or Cantho (: , : ), is the fourth-largest city in Vietnam, and the largest city along the Mekong Delta region in Vietnam. It is noted for its floating markets, rice paper-making village, and picturesque r ...
in Vietnam,
Bangkok Bangkok, officially known in Thai as Krung Thep Maha Nakhon and colloquially as Krung Thep, is the capital and most populous city of Thailand. The city occupies in the Chao Phraya River delta in central Thailand and has an estimated populati ...
in Thailand, and
Lahore Lahore ( ; pnb, ; ur, ) is the second most populous city in Pakistan after Karachi and 26th most populous city in the world, with a population of over 13 million. It is the capital of the province of Punjab where it is the largest city ...
in Pakistan.
Liverpool Maritime Mercantile City Liverpool Maritime Mercantile City is a former UNESCO designated World Heritage Site in Liverpool, England, that comprised six locations in the city centre including the Pier Head, Albert Dock and William Brown Street, and many of the city's mos ...
was a
UNESCO World Heritage Site A World Heritage Site is a landmark or area with legal protection by an international convention administered by the United Nations Educational, Scientific and Cultural Organization (UNESCO). World Heritage Sites are designated by UNESCO for ...
near the centre of
Liverpool Liverpool is a city and metropolitan borough in Merseyside, England. With a population of in 2019, it is the 10th largest English district by population and its metropolitan area is the fifth largest in the United Kingdom, with a populat ...
, England, where a system of intertwining waterways and docks is now being developed for mainly residential and leisure use. Canal estates (sometimes known as bayous in the United States) are a form of subdivision popular in cities like
Miami, Florida Miami ( ), officially the City of Miami, known as "the 305", "The Magic City", and "Gateway to the Americas", is a East Coast of the United States, coastal metropolis and the County seat, county seat of Miami-Dade County, Florida, Miami-Dade C ...
,
Texas City, Texas Texas City is a city in Galveston County in the U.S. state of Texas. Located on the southwest shoreline of Galveston Bay, Texas City is a busy deepwater port on Texas's Gulf Coast, as well as a petroleum-refining and petrochemical-manufacturin ...
and the Gold Coast, Queensland; the Gold Coast has over 890 km of residential canals. Wetlands are difficult areas upon which to build housing estates, so dredging part of the wetland down to a
navigable 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 (e.g. boats) to pass safely. Such a navigable water is called a ''waterway'', and is preferably with few obstructions against di ...
channel provides fill to build up another part of the wetland above the flood level for houses. Land is built up in a finger pattern that provides a suburban street layout of waterfront housing blocks.


Boats

Inland canals have often had boats specifically built for them. An example of this is the British narrowboat, which is up to long and wide and was primarily built for British Midland canals. In this case the limiting factor was the size of the locks. This is also the limiting factor on the Panama canal where Panamax ships were limited to a length of and a beam of until 26 June 2016 when the opening of larger locks allowed for the passage of larger New Panamax ships. For the lockless Suez Canal the limiting factor for Suezmax ships is generally draft, which is limited to . At the other end of the scale, tub-boat canals such as the
Bude Canal The Bude Canal was a canal built to serve the hilly hinterland in the Cornwall and Devon border territory in the United Kingdom, chiefly to bring lime-bearing sand for agricultural fertiliser. The Bude Canal system was one of the most unusual ...
were limited to boats of under 10 tons for much of their length due to the capacity of their inclined planes or boat lifts. Most canals have a limit on height imposed either by bridges or by tunnels.


Lists of canals

*Africa **
Bahr Yussef The Bahr Yussef ( ar, بحر يوسف; "the waterway of Joseph") is a canal which connects the Nile River with Fayyum in Egypt. In ancient times it was called Tomis () by the Greeks which was derived from its Egyptian name ''Tm.t'' "ending cana ...
** El Salam Canal Egypt ** Ibrahimiya Canal Egypt ** Mahmoudiyah Canal Egypt ** Suez Canal Egypt *Asia ** see List of canals in India ** see List of canals in Pakistan ** see
History of canals in China The history of canals in China connecting its major rivers and centers of agriculture and population extends from the legendary exploits of Yu the Great in his attempts control the flooding of the Yellow River to the present infrastructure project ...
* Europe **
Danube–Black Sea Canal The Danube–Black Sea Canal ( ro, Canalul Dunăre–Marea Neagră) is a navigable canal in Romania, which runs from Cernavodă on the Danube river, via two branches, to Constanța and Năvodari on the Black Sea. Administered from Agigea, it ...
(
Romania Romania ( ; ro, România ) is a country located at the crossroads of Central, Eastern, and Southeastern Europe. It borders Bulgaria to the south, Ukraine to the north, Hungary to the west, Serbia to the southwest, Moldova to the east, and ...
) **
North Crimean Canal The North Crimean Canal ( uk, Північно-Кримський канал, translit=Pivnichno-Krymskyi kanal, russian: Северо-Крымский канал, in the Soviet Union: North Crimean Canal of the Lenin's Komsomol of Ukraine) is a l ...
(
Ukraine Ukraine ( uk, Україна, Ukraïna, ) is a country in Eastern Europe. It is the second-largest European country after Russia, which it borders to the east and northeast. Ukraine covers approximately . Prior to the ongoing Russian inv ...
) ** Canals of France ** Canals of Amsterdam ** Canals of Germany **
Canals of Ireland :''This article covers the whole of Ireland, that is, covering both the Republic of Ireland and Northern Ireland'' Navigable canals * Ardnacrusha Canal * Grand Canal * Jamestown Canal * Lecarrow Canal *Newry Ship Canal *Royal Canal * Shannon– ...
** Canals of Russia **
Canals of the United Kingdom 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 ...
** Great Bačka Canal (
Serbia Serbia (, ; Serbian: , , ), officially the Republic of Serbia (Serbian: , , ), is a landlocked country in Southeastern and Central Europe, situated at the crossroads of the Pannonian Basin and the Balkans. It shares land borders with Hungar ...
) * North America ** Canals of Canada ** Canals of the United States


Lists of proposed canals

*
Eurasia Canal The Eurasia Canal (russian: Канал "Евразия", ''Kanal "Evraziya"'') is a proposed 700-kilometre-long (430 mi) canal connecting the Caspian Sea to the Black Sea along the Kuma-Manych Depression. Currently, a chain of lakes and res ...
* Istanbul Canal *
Nicaragua Canal The Nicaraguan Canal ( es, Canal de Nicaragua), formally the Nicaraguan Canal and Development Project (also referred to as the Nicaragua Grand Canal, or the Grand Interoceanic Canal) was a proposed shipping route through Nicaragua to connect th ...
* Salwa Canal *
Thai Canal The Thai Canal, also known as Kra Canal or Kra Isthmus Canal, refers to proposals for a canal that would connect the Gulf of Thailand with the Andaman Sea across the Kra Isthmus in southern Thailand. Such a canal would significantly reduce tra ...
* Two Seas Canal * Northern river reversal *
Balkan Canal The Balkans ( ), also known as the Balkan Peninsula, is a geographical area in southeastern Europe with various geographical and historical definitions. The region takes its name from the Balkan Mountains that stretch throughout the whol ...
or Danube–Morava–Vardar–Aegean Canal * Iranrud


See also

*
Barge Barge nowadays generally refers to a flat-bottomed inland waterway vessel which does not have its own means of mechanical propulsion. The first modern barges were pulled by tugs, but nowadays most are pushed by pusher boats, or other vessels ...
s of all types * Beaver, a non-human animal also known for canal building * Canal elevator *
Canal & River Trust The Canal & River Trust (CRT), branded as in Wales, holds the guardianship of 2,000 miles of canals and rivers, together with reservoirs and a wide range of heritage buildings and structures, in England and Wales. Launched on 12 July 2012, the ...
*
Canal tunnel {{Refimprove, date=September 2009 A canal tunnel is a tunnel for a canal. The building of a canal tunnel is crucial to help a waterway that is normally used for shipping cross a difficult section of terrain. They are also constructed to reduce th ...
* Channel *
Ditch A ditch is a small to moderate divot created to channel water. A ditch can be used for drainage, to drain water from low-lying areas, alongside roadways or fields, or to channel water from a more distant source for plant irrigation. Ditches ar ...
* Environment Agency * History of the British canal system *
Horse-drawn boat A horse-drawn boat or tow-boat is a historic boat operating on a canal, pulled by a horse walking beside the canal on a towpath. United Kingdom The Romans are known to have used mules to haul boats on their waterways in the UK. Boat horses were t ...
* Infrastructure *
Irrigation district In the United States an irrigation district is a cooperative, self-governing public corporation set up as a subdivision of the State government, with definite geographic boundaries, organized, and having taxing power to obtain and distribute water f ...
* Lists of canals *
List of navigation authorities in the United Kingdom This List of navigation authorities in the United Kingdom is a list of links to any navigation authority in the United Kingdom, relating to any navigable waterway, aqueduct, canal, navigation, river or port. These include: * narrow cana ...
*
List of waterways This is a list of waterways, defined as navigable rivers, canals, estuaries, lakes, or firths. In practice, and depending on the language, the term "waterway" covers maritime or inland transport routes, as suggested by "way". Wherever a free- ...
*
List of waterway societies in the United Kingdom This List of waterway societies in the United Kingdom is a list of links to waterway societies, charities, trusts, associations, clubs and other non-governmental waterway organisations, concerned with the restoration, regeneration and use of ...
*
Lock Lock(s) may refer to: Common meanings *Lock and key, a mechanical device used to secure items of importance *Lock (water navigation), a device for boats to transit between different levels of water, as in a canal Arts and entertainment * ''Lock ...
*
Mooring A mooring is any permanent structure to which a vessel may be secured. Examples include quays, wharfs, jetties, piers, anchor buoys, and mooring buoys. A ship is secured to a mooring to forestall free movement of the ship on the water. An ''an ...
*
Navigable aqueduct Navigable aqueducts (sometimes called water bridges) are bridge structures that carry navigable waterway canals over other rivers, valleys, railways or roads. They are primarily distinguished by their size, carrying a larger cross-section of wa ...
*
Navigation authority A navigation authority is a company or statutory body which is concerned with the management of a navigable canal or river. Rights of a navigation authority Whilst the rights of individual authorities vary, a navigation authority will typically ha ...
* Narrowboat * Power canal * Proposed canals *
River A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of w ...
*
Ship canal A ship canal is a canal especially intended to accommodate ships used on the oceans, seas, or lakes to which it is connected. Definition Ship canals can be distinguished from barge canals, which are intended to carry barges and other vessel ...
*
Tow path A towpath is a road or trail on the bank of a river, canal, or other inland waterway. The purpose of a towpath is to allow a land vehicle, beasts of burden, or a team of human pullers to tow a boat, often a barge. This mode of transport ...
*
Roman canals Roman or Romans most often refers to: *Rome, the capital city of Italy *Ancient Rome, Roman civilization from 8th century BC to 5th century AD *Roman people, the people of ancient Rome *''Epistle to the Romans'', shortened to ''Romans'', a letter ...
– (''
Torksey __NOTOC__ Torksey is a small village in the West Lindsey district of Lincolnshire, England. The population of the civil parish at the 2011 census was 875. It is situated on the A156 road, south of Gainsborough and north-west of the city of ...
'') * Volumetric flow rate * Water bridge * Waterscape * Water transportation *
Waterway 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 b ...
* Waterway restoration *
Waterways in the United Kingdom 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, (i.e. canals, rivers, firths, and estuaries). Rivers in the United Kingdom Major navigable rivers in ...
*
Weigh lock 200px, A weigh lock on the Lehigh Canal around 1873 A weigh lock is a specialized canal lock designed to determine the weight of barges in order to assess toll payments based upon the weight and value of the cargo carried. This requires that the ...


References


Notes


Bibliography

* * * * * *


External links


British Waterways' leisure website – Britain's official guide to canals, rivers and lakes

Leeds Liverpool Canal Photographic Guide



Information and Boater's Guide to the New York State Canal System


* ttp://www.canals.org/ National Canal Museum (USA)
London Canal Museum (UK)

Canals in Amsterdam

Canal du Midi

Canal des Deux Mers


* {{Authority control Coastal construction Water transport infrastructure Artificial bodies of water Infrastructure