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The Aire and Calder Navigation is the canalised section of the Rivers Aire and Calder in
West Yorkshire West Yorkshire is a metropolitan and ceremonial county in the Yorkshire and Humber Region of England. It is an inland and upland county having eastward-draining valleys while taking in the moors of the Pennines. West Yorkshire came into exi ...
, England. The first improvements to the rivers above
Knottingley Knottingley is a market town in the City of Wakefield in West Yorkshire, England on the River Aire and the old A1 road before it was bypassed as the A1(M). Historically part of the West Riding of Yorkshire, it has a population of 13,503, inc ...
were completed in 1704 when the Aire was made navigable to Leeds and the Calder to Wakefield, by the construction of 16 locks. Lock sizes were increased several times, as was the depth of water, to enable larger boats to use the system. The Aire below Haddlesey was bypassed by the opening of the Selby Canal in 1778. A canal from Knottingley to the new docks and new town at Goole provided a much shorter route to the River Ouse from 1826. The
New Junction Canal The New Junction Canal is a canal in South Yorkshire, England. It is part of the Sheffield and South Yorkshire Navigation (S&SYN), although it was jointly funded by the Aire and Calder Navigation, and was opened in 1905. It links the River Don ...
was constructed in 1905, to link the system to the River Don Navigation, by then part of the
Sheffield and South Yorkshire Navigation The Sheffield and South Yorkshire Navigation (S&SY) is a system of navigable inland waterways (canals and canalised rivers) in South Yorkshire and Lincolnshire, England. Chiefly based on the River Don, it runs for a length of and has 27 lock ...
. Steam tugs were introduced in 1831. In the 1860s, compartment boats were introduced, later called
Tom Pudding Tom Pudding was the name given to the tub boats on the Aire and Calder Navigation, introduced in 1863 and used until 1985, which were a very efficient means of transferring and transporting coal from the open cast collieries of the South Yorkshi ...
s, from which coal was unloaded into ships by large hydraulic hoists. This system enabled the canal to carry at its peak more than 1.5 million tons of coal per year, and was not abandoned until 1986. To handle trains of compartments, many of the locks were lengthened to . Although much of the upper reaches are now designated as leisure routes, there is still significant commercial traffic on the navigation. 300,000 tons were carried in 2007, although most of the traffic is now petroleum and gravel, rather than the coal which kept the navigation profitable for 150 years.


Route

The Aire and Calder is a canalisation of the River Calder from
Wakefield Wakefield is a cathedral city in West Yorkshire, England located on the River Calder. The city had a population of 99,251 in the 2011 census.https://www.nomisweb.co.uk/census/2011/ks101ew Census 2011 table KS101EW Usual resident population, ...
to
Castleford Castleford is a town within the City of Wakefield, West Yorkshire, England. It had a population of 45,106 at a 2021 population estimate. Historically in the West Riding of Yorkshire, to the north of the town centre the River Calder joins th ...
, where it joins the branch from
Leeds Leeds () is a city and the administrative centre of the City of Leeds district in West Yorkshire, England. It is built around the River Aire and is in the eastern foothills of the Pennines. It is also the third-largest settlement (by popul ...
, which follows the
River Aire The River Aire is a major river in Yorkshire, England, in length. The ''Handbook for Leeds and Airedale'' (1890) notes that the distance from Malham to Howden is direct, but the river's meanderings extend that to . Between Malham Tarn and Ai ...
. The Aire continues to flow eastwards to Bank Dole Junction, then continues in a north-easterly direction to Haddlesey, from where it follows a winding course to join the River Ouse at
Airmyn Airmyn is a village and civil parish in the East Riding of Yorkshire, England. It is situated at the mouth of the River Aire with the River Ouse, approximately north-west of Goole. It lies to the west of the M62 motorway and the A614 road. ...
. The section below Haddlesey is no longer part of the navigation, as a derelict lock blocks access to the lower river. Instead, the Selby Canal flows northwards from Haddlesey to the Ouse at
Selby Selby is a market town and civil parish in the Selby District of North Yorkshire, England, south of York on the River Ouse, with a population at the 2011 census of 14,731. The town was historically part of the West Riding of Yorkshire until ...
. Below Dole Bank Junction, the Knottingley and Goole Canal flows eastwards to join the Ouse at
Goole Goole is a port town and civil parish on the River Ouse in the East Riding of Yorkshire, England. The town's historic county is the West Riding of Yorkshire. According to the 2011 UK census, Goole parish had a population of 19,518, an increa ...
. From just before Newbridge, where the modern A614 road crosses the waterway, this branch of the navigation runs parallel to the Dutch River, an artificial channel built in 1635 to alleviate flooding caused by
Cornelius Vermuyden Sir Cornelius Vermuyden ( Sint-Maartensdijk, 1595 – London, 11 October 1677) was a Dutch engineer who introduced Dutch land reclamation methods to England. Vermuyden was commissioned by the Crown to drain Hatfield Chase in the Isle of Axholm ...
's original diversion of the River Don northwards to the River Aire in 1628. The Aire and Calder still fulfils its original purpose of linking Leeds and Wakefield with
York York is a cathedral city with Roman origins, sited at the confluence of the rivers Ouse and Foss in North Yorkshire, England. It is the historic county town of Yorkshire. The city has many historic buildings and other structures, such as a ...
and the
Humber The Humber is a large tidal estuary on the east coast of Northern England. It is formed at Trent Falls, Faxfleet, by the confluence of the tidal rivers Ouse and Trent. From there to the North Sea, it forms part of the boundary between ...
(and thence the Trent), although the routes by which this is achieved have changed significantly. More recent canals now also make the Navigation a vital link in the English and Welsh connected inland waterway network. Beyond Leeds, the
Leeds and Liverpool Canal The Leeds and Liverpool Canal is a canal in Northern England, linking the cities of Leeds and Liverpool. Over a distance of , crossing the Pennines, and including 91 locks on the main line. The Leeds and Liverpool Canal has several small branc ...
carries boats over the Pennines. The
Calder and Hebble Navigation The Calder and Hebble Navigation is a broad inland waterway, with locks and bridgeholes that are suitable for boats, in West Yorkshire, England. Construction to improve the River Calder and the River Hebble began in 1759, and the initial sch ...
, which connects to the Navigation at Wakefield, allows boats to reach the Huddersfield
Broad Broad(s) or The Broad(s) may refer to: People * A slang term for a woman. * Broad (surname), a surname Places * Broad Peak, on the border between Pakistan and China, the 12th highest mountain on Earth * The Broads, a network of mostly na ...
and Narrow Canals, and the
Rochdale Canal The Rochdale Canal is in Northern England, between Manchester and Sowerby Bridge, part of the connected system of the canals of Great Britain. Its name refers to the town of Rochdale through which it passes. The Rochdale is a broad canal bec ...
. The Selby Canal connects to the Ouse, from where boats can travel upstream to reach York,
Boroughbridge Boroughbridge () is a town and civil parish in the Harrogate district of North Yorkshire, England. Historically part of the West Riding of Yorkshire, it is north-west of the county town of York. Until a bypass was built the town lay on t ...
and
Ripon Ripon () is a cathedral city in the Borough of Harrogate, North Yorkshire, England. The city is located at the confluence of two tributaries of the River Ure, the Laver and Skell. Historically part of the West Riding of Yorkshire, the ...
, or downstream to the River Derwent. Beyond Goole are the Humber and hence
Hull Hull may refer to: Structures * Chassis, of an armored fighting vehicle * Fuselage, of an aircraft * Hull (botany), the outer covering of seeds * Hull (watercraft), the body or frame of a ship * Submarine hull Mathematics * Affine hull, in affi ...
,
Immingham Immingham is a town, civil parish and ward in the North East Lincolnshire unitary authority of England. It is situated on the south-west bank of the Humber Estuary, and is north-west from Grimsby. The region was relatively unpopulated and und ...
, and the North Sea. The
Sheffield and South Yorkshire Navigation The Sheffield and South Yorkshire Navigation (S&SY) is a system of navigable inland waterways (canals and canalised rivers) in South Yorkshire and Lincolnshire, England. Chiefly based on the River Don, it runs for a length of and has 27 lock ...
, which can be reached via the
New Junction Canal The New Junction Canal is a canal in South Yorkshire, England. It is part of the Sheffield and South Yorkshire Navigation (S&SYN), although it was jointly funded by the Aire and Calder Navigation, and was opened in 1905. It links the River Don ...
, forms a link with
Doncaster Doncaster (, ) is a city in South Yorkshire, England. Named after the River Don, it is the administrative centre of the larger City of Doncaster. It is the second largest settlement in South Yorkshire after Sheffield. Doncaster is situated in ...
,
Rotherham Rotherham () is a large minster and market town in South Yorkshire, England. The town takes its name from the River Rother which then merges with the River Don. The River Don then flows through the town centre. It is the main settlement of ...
and
Sheffield Sheffield is a city in South Yorkshire, England, whose name derives from the River Sheaf which runs through it. The city serves as the administrative centre of the City of Sheffield. It is historically part of the West Riding of Yorkshire ...
to the south west, and the tidal
River Trent The Trent is the third-longest river in the United Kingdom. Its source is in Staffordshire, on the southern edge of Biddulph Moor. It flows through and drains the North Midlands. The river is known for dramatic flooding after storms and ...
at
Keadby __NOTOC__ Keadby is a small village in North Lincolnshire, England. It is situated just off the A18, west of Scunthorpe, and on the west bank of the River Trent. Keadby is in the ceremonial county of Lincolnshire. The appropriate civi ...
to the east.


History

In the early 1600s, the River Aire was navigable to Knottingley, and boats carrying up to 30 tons traded on the river, which was tidal up to this point. The traders of Leeds were keen to have a navigable link to the town, to make easier the export of woollen cloth, but bills presented to Parliament in 1621 and 1625 had failed. William Pickering, who was mayor of Leeds, had made further attempts to obtain an
act of Parliament Acts of Parliament, sometimes referred to as primary legislation, are texts of law passed by the legislative body of a jurisdiction (often a parliament or council). In most countries with a parliamentary system of government, acts of parliame ...
for improvements to the river in 1679, again without success. As the 1600s drew to a close, a number of bills were passed for other rivers, and there was general support for river navigations. A bill was drawn up in 1698, with support from wool traders in Leeds and general merchants in Wakefield. John Hadley surveyed the Aire, and Samuel Shelton surveyed the Calder. Although the bill had a lot of support, it was opposed by the City of York, who feared that the River Ouse would be damaged by the scheme. The parliamentary bill was hotly contested, and the House of Lords asked
Trinity House "Three In One" , formation = , founding_location = Deptford, London, England , status = Royal Charter corporation and registered charity , purpose = Maintenance of lighthouses, buoys and beacons , he ...
to produce a report on the three rivers. This favoured the scheme, and in May 1699 the act of Parliament was granted. It named 18 undertakers, nine from the Corporation of Leeds, and nine "gentlemen of Wakefield", who would oversee the improvements to the River Aire (from the River Ouse at
Airmyn Airmyn is a village and civil parish in the East Riding of Yorkshire, England. It is situated at the mouth of the River Aire with the River Ouse, approximately north-west of Goole. It lies to the west of the M62 motorway and the A614 road. ...
via
Castleford Castleford is a town within the City of Wakefield, West Yorkshire, England. It had a population of 45,106 at a 2021 population estimate. Historically in the West Riding of Yorkshire, to the north of the town centre the River Calder joins th ...
to
Leeds Leeds () is a city and the administrative centre of the City of Leeds district in West Yorkshire, England. It is built around the River Aire and is in the eastern foothills of the Pennines. It is also the third-largest settlement (by popul ...
) and the River Calder (from Castleford to
Wakefield Wakefield is a cathedral city in West Yorkshire, England located on the River Calder. The city had a population of 99,251 in the 2011 census.https://www.nomisweb.co.uk/census/2011/ks101ew Census 2011 table KS101EW Usual resident population, ...
). The act gave them powers which included the creation of weirs bypassed by short "cuts" equipped with locks, the creation of 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 ...
, and the right to buy and demolish mills and
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. John Hadley was engaged as the engineer immediately, and by 1704 the original work was completed, including 12 locks on the Aire between Haddesley and Leeds and 4 on the Calder. The locks were long by wide with depths over the sills. Capital to fund the scheme had been raised separately by the Wakefield and Leeds committees. A complicated restructuring of the finances in 1721 fixed the nominal capital at £26,700. Regular dividends at 7 per cent were paid to the shareholders from 1718, and the navigation was leased to various groups, who would be responsible for collection of tolls and repairs. The lease rose from £800 in 1704 to £2,600 in 1729, when receipts from each of the previous five years had averaged £6,016. The early trade consisted mainly of woollen goods from Leeds, Wakefield, Halifax and
Bradford Bradford is a city and the administrative centre of the City of Bradford district in West Yorkshire, England. The city is in the Pennines' eastern foothills on the banks of the Bradford Beck. Bradford had a population of 349,561 at the 2011 ...
, with wool and corn from
Lincolnshire Lincolnshire (abbreviated Lincs.) is a Counties of England, county in the East Midlands of England, with a long coastline on the North Sea to the east. It borders Norfolk to the south-east, Cambridgeshire to the south, Rutland to the south-we ...
and
East Anglia East Anglia is an area in the East of England, often defined as including the counties of Norfolk, Suffolk and Cambridgeshire. The name derives from the Anglo-Saxon kingdom of the East Angles, a people whose name originated in Anglia, in ...
travelling in the opposite direction. By the 1720s there were also significant quantities of coal.


Development

Some development of the navigation occurred. In 1744, the undertakers bought some land at Airmyn, and developed warehousing and wharfage there, as a more convenient point than Rawcliffe, where the water was shallower. In the 1760s, £13,000 was spent on improvements and maintenance, with several weirs being rebuilt to improve the depth of water. There was a long-running dispute with Arthur Ingram, who owned Knottingley mill, which started in 1731, and was not finally resolved until 1776, when the company bought both of Ingram's mills. Despite this, the general profitability of the navigation led the undertakers to be complacent about its development. They asked
John Smeaton John Smeaton (8 June 1724 – 28 October 1792) was a British civil engineer responsible for the design of bridges, canals, harbours and lighthouses. He was also a capable mechanical engineer and an eminent physicist. Smeaton was the fi ...
to suggest improvements in 1771, but the subsequent attempt to authorise such improvements was disputed in Parliament on the basis that the present navigation was totally inadequate. The recently finished
Calder and Hebble Navigation The Calder and Hebble Navigation is a broad inland waterway, with locks and bridgeholes that are suitable for boats, in West Yorkshire, England. Construction to improve the River Calder and the River Hebble began in 1759, and the initial sch ...
proposed to build a canal from Wakefield to the Dutch River, which would bypass the Calder completely, and the
Leeds and Liverpool Canal The Leeds and Liverpool Canal is a canal in Northern England, linking the cities of Leeds and Liverpool. Over a distance of , crossing the Pennines, and including 91 locks on the main line. The Leeds and Liverpool Canal has several small branc ...
supported a Leeds to Selby canal, which would bypass the Aire. During 1772, they asked Smeaton to survey a route to avoid the lower Aire, but his assistant,
William Jessop William Jessop (23 January 1745 – 18 November 1814) was an English civil engineer, best known for his work on canals, harbours and early railways in the late 18th and early 19th centuries. Early life Jessop was born in Devonport, Devon, the ...
actually carried out the work. He proposed a canal from Haddlesey lock to the Ouse at Newland. With Parliament not reaching a decision, they reworked their plan, which was now for a canal from Haddlesey to
Selby Selby is a market town and civil parish in the Selby District of North Yorkshire, England, south of York on the River Ouse, with a population at the 2011 census of 14,731. The town was historically part of the West Riding of Yorkshire until ...
, with a new cut from Ferrybridge to Beal, and improvements above Castleford. In 1774 the Leeds to Selby bill was rejected by Parliament, but the Aire and Calder bill was passed, with a few amendments. Construction of the Selby Canal began in 1775, and it was opened on 29 April 1778. The new cut at Castleford opened in spring 1775, while those at Knostrop and
Hunslet Hunslet () is an inner-city area in south Leeds, West Yorkshire, England. It is southeast of the city centre and has an industrial past. It is situated in the Hunslet and Riverside ward of Leeds City Council and Leeds Central parliamenta ...
were finished in 1779.
Methley Methley is a dispersed village in the City of Leeds metropolitan borough, south east of Leeds, West Yorkshire, England. It is located near Rothwell, Oulton, Woodlesford, Mickletown and Allerton Bywater. The Leeds City Ward is called Kippax ...
cut was completed, but Woodlesford was not, as the company bought the mill there instead. All locks were replaced, and the total cost was over £60,000, of which around £20,000 was for the Selby Canal. The navigation remained profitable, paying £9,000 in dividends in 1775, which had risen to £32,000 by 1791. Most traffic now used the Selby route, and the transhipment facilities at Airmyn were closed in 1779. Selby was the upper limit for seagoing ships at the time, and became a major transhipment port for the smaller boats using the canal. Canal boats were limited to about 60 tons, whereas ships of up to 200 tons could reach Selby. By 1800, it was handling some 369,780 tons of goods, and the support industries of ropemaking, sailmaking and shipbuilding were expanding.


Knottingley to Goole

In 1817, there was a proposal for an Aire and Don Canal, to connect Knottingley to the Dutch River at Newbridge, with a branch to
Doncaster Doncaster (, ) is a city in South Yorkshire, England. Named after the River Don, it is the administrative centre of the larger City of Doncaster. It is the second largest settlement in South Yorkshire after Sheffield. Doncaster is situated in ...
, and another for a Went and Wakefield Canal, to connect Cold Hiendley on the
Barnsley Canal The Barnsley Canal is a canal that ran from Barnby Basin, through Barnsley, South Yorkshire, England to a junction with the Aire and Calder Navigation near Wakefield, West Yorkshire. It was built in the 1790s, to provide a transport link from ...
to Newbridge on the Don. With revenue from tolls reaching £82,092 in 1818, which enabled a dividend of £54,000 to be paid, the company was in a healthy state, and proposed their own route from Haddlesey to the Dutch River. The destination was then changed to
Goole Goole is a port town and civil parish on the River Ouse in the East Riding of Yorkshire, England. The town's historic county is the West Riding of Yorkshire. According to the 2011 UK census, Goole parish had a population of 19,518, an increa ...
, and John Rennie was asked to survey the route. Those opposing the scheme were placated by a clause which ensured the Aire to Airmyn and the Selby Canal would be maintained. In July 1821, Rennie proposed the construction of docks at Goole, rather than a lock into the river, and the company proposed that of water should be available. Rennie died in late 1821, and George Leather took over as engineer. Construction at Goole started on 28 September 1822, and the company eventually built much of the new town as well as the docks. The canal and docks opened on 20 July 1826. A barge lock, and a ship lock, , capable of taking vessels up to 400 tons, connected the extensive docks to the Ouse. The new section was long, with locks at Ferrybridge, Whitley,
Pollington Pollington is a village and civil parish in the East Riding of Yorkshire, England. It is situated approximately south-west of the town of Snaith and south of the M62 motorway. It lies on the north bank of the Aire and Calder Navigation. Acc ...
and Goole. The connection to the Aire and the Selby canal was maintained by the lock at Bank Dole. Goole became an official port in 1827, when it gained its own Customs facilities. The scheme had cost £361,484, of which £221,350 had been borrowed, while the rest came from company resources. Faced with yet another outside scheme which would bypass the navigation from Wakefield to Ferrybridge, the company looked at improvements which would give of water all the way to both Leeds and Wakefield.
Thomas Telford Thomas Telford FRS, FRSE, (9 August 1757 – 2 September 1834) was a Scottish civil engineer. After establishing himself as an engineer of road and canal projects in Shropshire, he designed numerous infrastructure projects in his native Scot ...
surveyed both routes, and it became the basis for an act of Parliament which was passed in June 1828. It included a clause to ensure that the Selby Canal was maintained with a depth of water of , and made provision for extensions to Goole docks. Work started on a new cut at Castleford and on the line to Leeds, but legal action over the Selby Canal meant that it had to be made deeper and wider in 1832 and 1833. The Leeds line was completed in April 1835, somewhat later than anticipated, as the banks were made more substantial, to cope with steam tugs, which would be introduced in due course. The seven locks above Castelford were all wide. Improvements to the Calder to Wakefield took longer, as there were problems with floods filling the workings, difficulty with constructing foundations for an aqueduct which would carry the navigation over the River Calder at Stanley Ferry, and then in transporting the castings for the aqueduct to the site. The cost of the improvements ran to around £510,000.


Modernisation

The Aire and Calder tried to work with the railways when they arrived in the 1840s, by making traffic agreements, but still suffered a significant drop in trade. Receipts dropped by one-third between 1851 and 1856. Thomas Hammond Bartholomew, the chief engineer, had been experimenting with steam power since 1813, and steam paddle tugs had been operating on the system since 1831. When he died in late 1852, two-thirds of the traffic was pulled by steam tugs. His son, William Hammond Bartholomew, replaced him and introduced tugs with propellers soon afterwards. These could tow ten keels, carrying 700 tons, but were held up at locks, as the keels had to be worked through one at a time. Between 1860 and 1867, the locks from Goole to Castleford were extended to to alleviate this. In 1861, Bartholomew met with the chairman, Warde-Aldam, to propose a system of sectional boats, each consisting of six compartments, with a bow and stern section. The compartments or tubs would be unloaded into ships by a hydraulic hoist at Goole, which would lift them from the water and tip them over. Warde-Aldam thought that such a system could carry 45,000 tons of coal per year, and £13,382 was allocated for three train boats, a hoist, and hydraulic machinery to control the hoist and the lock into the docks. By late 1864, the prototypes were operational, with the stern section replaced by a pusher tug. Soon afterwards, extra compartments were ordered, as experience showed that a tug and seven compartments could fit into the larger locks. In 1874, Warde-Aldam noted that "...the people now call them '
Tom Pudding Tom Pudding was the name given to the tub boats on the Aire and Calder Navigation, introduced in 1863 and used until 1985, which were a very efficient means of transferring and transporting coal from the open cast collieries of the South Yorkshi ...
s' from their wobbling gait." The length of the trains increased to ten or eleven tubs, but such a train was difficult to steer from the rear, and so the tugs moved to the front and pulled the assembly. In 1880 they carried 151,860 tons, and by 1913 there were 18 tugs, 1,010 compartments, and 1,560,006 tons were carried, 33 times Warde-Aldam's original estimate. Around 1864, the Aire and Calder dabbled in owning its own railways, purchasing the Silkstone Waggonway from the
Barnsley Canal The Barnsley Canal is a canal that ran from Barnby Basin, through Barnsley, South Yorkshire, England to a junction with the Aire and Calder Navigation near Wakefield, West Yorkshire. It was built in the 1790s, to provide a transport link from ...
. But this proved a poor investment; in 1866 the waggonway carried just 3,246 tons of coal down from a peak of over 32,000 in 1851, and in 1870 no coal was carried at all. In August 1872, it was reported that "the rails have been pulled up and sold". After the
First World War World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was List of wars and anthropogenic disasters by death toll, one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, ...
, another programme of improvements to the locks was carried out, extending the locks to , which enabled trains of 19 compartments to operate regularly. Experiments with trains as long as 38 tubs were carried out, but the difficulty of splitting the train to pass through the locks meant that 19 was the usual maximum. The compartments continued until the late 1960s to carry around half a million tons of coal, long after most British canals had ceased to be used for commercial traffic, but the gradual demise of the coal industry led to compartment traffic ceasing in 1986. The 20th century saw two major phases of improvement. In 1905, the
New Junction Canal The New Junction Canal is a canal in South Yorkshire, England. It is part of the Sheffield and South Yorkshire Navigation (S&SYN), although it was jointly funded by the Aire and Calder Navigation, and was opened in 1905. It links the River Don ...
connected the Aire and Calder to the
Sheffield and South Yorkshire Navigation The Sheffield and South Yorkshire Navigation (S&SY) is a system of navigable inland waterways (canals and canalised rivers) in South Yorkshire and Lincolnshire, England. Chiefly based on the River Don, it runs for a length of and has 27 lock ...
near Stainforth. It was funded by the Aire and Calder, with the Don Navigation eventually meeting half the cost. During the 1960s, the navigation underwent another modernisation scheme, in which the locks from Goole to Leeds were upgraded and enlarged to accommodate vessels conforming to the 600-tonne Euro-barge standard. There is some variation in lock sizes, with the smallest being at Knostrop, which is with a water depth of over the lock cill. Euro barges are , and when fully loaded with 600 tonnes of cargo, have a draught of . Locks on the Wakefield section can accommodate vessels which are with a draught of , though rigid vessels are constrained to 141 ft to enable turning at Wakefield while the locks below Castleford have three sets of gates, so that a section can be used, rather than the full required by the compartment boats. The main problem with upgrading the Wakefield branch was the dimensions of George Leather's cast iron aqueduct over the River Calder at Stanley Ferry. Structural analysis showed that parts of the ironwork were overloaded, and so in 1981 a new concrete aqueduct was cast by John Laing Construction Ltd, on a site a little further upstream. The complete structure was then pushed into position by hydraulic jacks in a six-day operation, after which the navigation was diverted over it, although the old aqueduct was left in place and can still be used. Although coal mining was one of the main reasons for the success of the navigation, it has also brought problems, caused by subsidence. In March 1988, the bank near Lemonroyd lock collapsed into St Aidan's opencast mine, which then flooded. A significant factor was the presence of excavations below the opencast workings where lower coal seams had previously been mined. The failure resulted in some of material, including the banks of the river and the canal, slipping into the workings, which then flooded to a depth of , creating a lake which covered . An act of Parliament was obtained to allow of new waterway to be constructed. The original locks at Kippax and Lemonroyd were replaced by a single lock at Lemonroyd. Opencast mining finally resumed ten years later, after the site had been pumped out, but the coal reserves are now exhausted, and the site forms a nature reserve, with wet grasslands, reedbeds and open water covering .


Traffic

A 20th-century modification of the compartment boat system was used to feed the coal-fired Ferrybridge "C" power station. Starting in 1967, Cawoods Hargreaves used trains of three tubs or coal pans, which were rigidly connected, and pushed by a tug when loaded. The trains were filled with coal using canalside chutes at the colliery and pushed to the power station, where a hoist lifted each pan from the canal and upturned it to drop its contents onto a conveyor belt. Nine tugs and 35 pans were employed, with each pan holding around 170 tonnes. By the time the final load left Astley colliery in December 2002, 43 million tonnes had been delivered to Ferrybridge in this way. Experiments were made with trains of four pans, which allowed copper pipes to be carried on top of the coal for delivery to Goole, but this was short-lived. Coal carrying came to an abrupt halt in 2003 when the St Aidan's opencast mine was exhausted and the coal from Kellingley colliery was found to have levels of sulphur content high above the acceptable limit. During 2008, three of the trains were used on the River Don, to transport 250,000 tonnes of limestone from a quarry at Cadeby to Hexthorpe. British Waterways introduced a similar system in September 1974. Called BACAT, for Barges Aboard Catamaran, the system consisted of trains of barges, which were pushed by a tug, and which would be loaded between the twin hulls of a custom-built delivery ship. The ship would then transport them across the North Sea to continental waterways, without their contents having to be transshipped. The concept failed after 18 months, as the dock workers at Hull blacklisted the entire British Waterways fleet, because they believed that the system would threaten their jobs. Most of the commercial traffic using the navigation now consists of petroleum tankers and gravel barges.


Leisure boating

The Aire and Calder was built for commercial freight, and although the volume carried has dropped significantly, particularly since coal deliveries to Ferrybridge power station by canal stopped, the navigation still carried 300,000 tonnes of freight in 2007, down from 1.64 million tonnes in 2000. The Leeds to Castleford section and much of the Wakefield branch are now mainly used as leisure routes, but below Castleford, the industrial nature of the waterway is more obvious, and pleasure boats must give way to commercial vessels. 600 tonne vessels, designed to make maximum use of the locks, produce considerable wash, and are not as manoeuvrable as a narrow boat. Much of the ex-industrial (western) part of the Navigation now has the appearance of a tree-lined, gently-twisting river. The eastern part of the Navigation, sometimes known as the Knottingley and Goole Canal, is rather different: it has long straight stretches, but mainly through flat land that has always been agricultural. Between Wakefield and Leeds, via Castleford, the Navigation is part of a circular cruising route or "ring", formed by the Leeds & Liverpool and the
Huddersfield Huddersfield is a market town in the Kirklees district in West Yorkshire, England. It is the administrative centre and largest settlement in the Kirklees district. The town is in the foothills of the Pennines. The River Holme's confluence i ...
or
Rochdale Rochdale ( ) is a large town in Greater Manchester, England, at the foothills of the South Pennines in the dale on the River Roch, northwest of Oldham and northeast of Manchester. It is the administrative centre of the Metropolitan Bor ...
canals. The
Outer Pennine Ring The Outer Pennine Ring is an English canal ring which crosses the Pennines between Manchester, Leeds and Castleford. Its route follows parts of eight canals, and includes the longest canal tunnel in England. The ring was completed in 2001, with ...
utilises the Huddersfield Canal, while the North Pennine Ring uses the Rochdale Canal for the southern crossing of the Pennines. Beyond Castleford, boaters can travel on to Selby, York, Goole, Sheffield, and Keadby. With the possible restoration of the
Barnsley Canal The Barnsley Canal is a canal that ran from Barnby Basin, through Barnsley, South Yorkshire, England to a junction with the Aire and Calder Navigation near Wakefield, West Yorkshire. It was built in the 1790s, to provide a transport link from ...
and the
Dearne and Dove Canal The Dearne and Dove Canal ran for almost ten miles through South Yorkshire, England from Swinton to Barnsley through nineteen locks, rising . The canal also had two short branches, the Worsbrough branch and the Elsecar branch, both about two ...
, the section between Wakefield and the
New Junction Canal The New Junction Canal is a canal in South Yorkshire, England. It is part of the Sheffield and South Yorkshire Navigation (S&SYN), although it was jointly funded by the Aire and Calder Navigation, and was opened in 1905. It links the River Don ...
might become part of a new " Yorkshire Ring".


Incidents

On May 10, 2021 an
articulated lorry A semi-trailer truck, also known as a semitruck, (or semi, eighteen-wheeler, big rig, tractor-trailer or, by synecdoche, a semitrailer) is the combination of a tractor unit and one or more semi-trailers to carry freight. A semi-trailer a ...
crashed off a bridge from the M62 and into the navigation. The
tractor unit A tractor unit (also known as a truck unit, power unit, prime mover, ten-wheeler, semi-tractor, tractor truck, semi-truck, tractor cab, truck cab, tractor rig, truck rig or big rig or simply a tractor, truck, semi or rig) is a characteristical ...
landed on the bank and the driver suffered minor injuries, while the trailer floated away.


Points of interest


Bibliography

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References


External links


Pennine Waterways
* {{DEFAULTSORT:Aire And Calder Navigation Aire and Calder Canals in West Yorkshire Canals in Leeds Canals in Wakefield Canals opened in 1704 1704 establishments in England Aire catchment Leeds Blue Plaques