The Witham Navigable Drains are located in Lincolnshire, England, and are part of a much larger drainage system managed by the Witham Fourth District Internal Drainage Board. The Witham Fourth District comprises the East Fen and West Fen, to the north of Boston, which together cover an area of 97 square miles (250km2). In total there are over 438 miles (705km) of drainage ditches, of which under 60 miles (97km) are navigable. Navigation is normally only possible in the summer months, as the drains are maintained at a lower level in winter, and are subject to sudden changes in level as a result of their primary drainage function, which can leave boats stranded. Access to the drains is from the River Witham at Anton's Gowt Lock.
The area is bounded by the River Witham to the south and west, and the Steeping River to the north. Since the 11th century, there have been attempts to prevent the fens from flooding, so that they could be used for agriculture. A major advance was made in the seventeenth century, when Adventurers built drains in return for rights to some of the reclaimed land, but the success was short-lived, as Fenmen and Commoners rioted in 1642 and destroyed the works. Further attempts to drain the fens were made in the eighteenth century, and the first proposals to use the drains for navigation were made in 1779.
Most of the drainage ditches that are now evident were constructed under the authority of an Act of Parliament obtained in 1801. The plans for the scheme were drawn up by the civil engineer John Rennie. Better drainage was achieved from the 1860s, with the building of steam pumping stations. The steam engines were later replaced by diesel engines, and now many of them use electric pumps. Sensitive restoration of some of the pumping stations in the 1980s and 1990s resulted in the Witham Fourth District IDB being given a Design Award.
There were originally five locks on the system, including Anton's Gowt Lock. Cowbridge Lock is the only other one still operational. Access by boat to Cowbridge Drain and Hobhole Drain which drain the East Fen is no longer possible, because East Fen Lock, which connected Cowbridge Drain to the rest of the system has been filled in, while the lock chamber at Lade Bank Pumping Station has been reused to house extra pumps. Many of the structures built as part of Rennie's upgrade in the early 1800s survive in near-original condition, and are Grade II listed.
Geography
The area in which the drains lie is fenland, most of it at about sea level, and is bounded to the south west by the River Witham and to the south east by a low silt ridge of marine origin which separates it from The Wash. The northern boundary is defined by Coningsby to the north west, Spilsby and the southern edge of the Lincolnshire Wolds to the north, and Wainfleet and the Steeping River to the north east.[1][2] It is divided into the East Fen and the West Fen, separated by a strip of higher ground, some 7 miles (11km) long and 0.5 miles (0.8km) wide, on which are situated the villages of Stickford, Stickney and Sibsey.[3] The A16 road follows this higher ground,[4] which is glacial in origin. Historically, the south western section of the West Fen close to the River Witham was called the Wildmore Fen, but hydraulically, they form a single fen. In total, the fens occupy an area of around 97 square miles (250km2).[2]
Most of the fens were extra-parochial, consisting of a huge common, on which people from the surrounding villages had grazing rights. These could only be exercised in summer, as prior to drainage works being carried out, the East Fen drained northwards to the Steeping River, and during the winter months, most of that river discharged into the fen, causing widespread flooding.[5]
History
The area has been subject to flooding for centuries, both from the rivers and from the sea. While there is evidence for occupation of the region by Romans, Saxons, Danes and Normans, the first references to flood defences occur in the 11th and 12th centuries, when monks built a sea bank to hold back tides from their agricultural land. A sluice was constructed in 1142 on the River Witham to improve it for navigation, and Commissions of Sewers were appointed in the 13th century. They were empowered to investigate any problems with the drainage of the region, could appoint contractors to carry out work to rectify such problems, and had to assess how this work would be financed. Floods in 1394 resulted in a decision to rebuild a floodgate at Waynflete, with the villages affected paying the construction costs.[6]
Attempts to enlarge some of the drains in the East and West Fens are recorded by the Duchy of Lancaster in 1532. Wainfleet Haven was thought to be unsuitable as an outlet for the water, which was consequently routed to the River Witham and the Boston Haven. The first Maud Foster drain was cut in 1568, from Cowbridge to The Haven,[7] but in 1631 it was inadequate, as there was widespread flooding in both fens, which resulted in Sir Anthony Thomas, John Warsopp and other Adventurers being commissioned to enlarge the Maud Foster drain and build a new outfall where it discharged into The Haven. As there was no money to pay for the works, the Adventurers were to be given land from that which had been drained in recompense. They spent around £30,000, and were given 16,300 acres (6,600ha), which yielded rent of £8,000 per year. A further £20,000 was spent on improving the land they had been given.[8] Not everyone was in favour of the work, as in 1642 many of those who formerly had common rights to the land formed a mob, and destroyed sluices, houses and crops. Their actions probably included destroying the new Maud Foster sluice. The Adventurers petitioned the House of Lords, but were unsuccessful in the House of Commons, where they were opposed by the Commoners. The House of Commons ruled that the justices of the peace should prevent and suppress riots, but did not take sides with either party. Legal action followed, which the Commoners won, with the result that the Court of Sewers were again responsible for drainage matters, but the ditches and sluices remained ruined for many year.[9] Maud Foster drain was widened again in 1734, when another new sluice was built.[10] The Witham Fourth Drainage District Commissioners were created by act of Parliament, the Witham Drainage Act 1762 (2 Geo. 3. c. 32), but the East Fen and the area managed by the Court of Sewers were specifically excluded from their sphere of influence.[6]
An Act for draining and preserving certain low lands called the Fens, lying on both sides of the river Witham, in the county of Lincoln; and for restoring and maintaining the navigation of the said river, from the High Bridge, in the city of Lincoln, through the borough of Boston, to the sea.
As the drains became wider and more extensive, there were proposals to use them for navigation, and a lock at Anton's Gowt was first suggested in 1779. Funds were not available at the time, and so land doors were built so that boats could access the drains until the lock was completed in 1813.[11]
Civil engineering
In 1784, Mill Drain was enlarged, with the intention of using it to drain parts of the East Fen, but this action was stopped by Fenmen blocking the drain, as they lived by fishing, fowling and cutting reeds, and these activities were threatened by drainage. A petition was presented to the Commissioners, signed by 105 Fenmen, of whom 86 were sufficiently literate to write their own name. As a result, a sluice was built on Valentine's Drain, which maintained the water level in the East Fen at a height sufficient to allow the Fenmen to continue their way of life.[12] A series of reports had been made during the eighteenth century by the civil engineers John Smeaton, John Grundy, Sr., his son John Grundy, Jr., Langley Edwards, and others, but no action had been taken to implement them. With Sir Joseph Banks of Revesby Abbey pushing for a solution, the civil engineer John Rennie was asked to produce a plan for the drainage of both fens. Anthony Bower and James Murray carried out the surveys, and Rennie produced his report in September 1800. He concluded that the outfalls at Wainfleet and Maud Foster was inadequate, and that the internal drainage of the fens was not effective. He suggested catchwater drains to collect the runoff from the Wolds to prevent it entering the fens, and a new tidal sluice at Hobhole, closer to the Wash than the Maud Foster outlet. After some minor disputes were resolved, the plan formed the basis for an act of Parliament[which?] obtained in 1801.[2]
The 1801 act was supplemented by a second act of Parliament[which?] obtained two years later. The principal engineering works were the West Fen Catchwater Drain, a 13.4-mile (21.6km) channel around the northern edge of the West Fen; the East Fen Catchwater Drain, a 9.4-mile (15.1km) channel around the northern edge of the East Fen; the Stonebridge Drain, a 4.2-mile (6.8km) channel which connected Cherry Corner to Cowbridge; upgrading of the Maud Foster drain and the provision of a new sluice where it met The Haven; and construction of the Hobhole Drain, running for 13.5 miles (21.7km) from Toynton St Peter to the new Hobhole sluice. Most of the main drains which are now navigable were excavated or improved as part of this work, including Castle Dyke, Frith Bank Drain, Medlam Drain, Newham Drain and West Fen Drain in the West Fen. In addition to Hobhole Drain, Barlode Drain, Bellwater Drain, Fodder Dyke, Lade Bank Drain and Thorpe Drain were constructed in the East Fen. Hobhole Sluice was opened in 1806 and Rennie's new Maud Foster Sluice was completed in the following year.[13] Under the acts of Parliament, the Drainage District was extended to include the East Fen. Although Boston was flooded in 1810, the East and West Fens were declared to be in good order soon afterwards.[6]
The construction of Hobhole sluice was the first time that a steam engine is known to have been used in connection with Fens drainage. In order to keep the foundations for the sluice free from water, they were pumped out by a Boulton & Watt steam engine, rated at 6hp (4.5kW). The machine lasted until at least 1814, just three years before the first permanent steam pumping station was built at Sutton St. Edmund in South Holland.[14] There is a small drain that runs eastwards from the Medlam Drain to New Bolingbroke. This was probably built by John Parkingson in the early 19th century, to provide canal access to the village which he hoped would become a market town.[15]
The Fourth District was extended in 1818, following another report by Rennie on the lower reaches of the Steeping River. An act of Parliament[which?] was obtained in the same year, which authorised the straightening of the river, and the addition of 6,740 acres (2,730ha), subsequently known as "the 5000 acres", to the district. This area was located on the north-eastern bank of the Steeping River, and its main drainage channel was connected to the Bell Water Drain by three oval brick tunnels, each 47 yards (43m) long, which pass under the river. The tunnels were completed in 1821, and were entirely hidden until the construction of Lade Bank pumping station in 1867 lowered the water levels.[16]
Pumped drainage
The 1860s saw the first attempts to drain the Fens by pumping, as suitable steam engines became available. Ground levels in the extensive area of peat land in the northern half of the East Fen had been steadily falling since the fen was first drained and the Witham Drainage (Fourth District) Act 1867 (30 & 31 Vict. c. cxxxviii) authorised the construction of a steam-driven pumping station at Lade Bank, which was completed by September, to resolve this problem. Silting below the Hobhole sluice was remedied by the provisions of the Witham Outfall improvement Act,[which?] passed later in the same year.[6] Lade Bank pumping station had two pump wells, each containing an Appold double-inlet pump, and each was driven by a pair of high-pressure condensing steam engines. A pair of engines was rated at 240 horsepower (180kW) and could pump 350 tons per minute (514 Megalitres per day (Mld)). The cost of the installation was £17,000.[17]
A royal commission in 1927 considered the part played by the various types of drainage bodies, and the Land Drainage Act 1930 (20 & 21 Geo. 5. c. 44) sought to unify these, by creating Catchment Boards, responsible for the main rivers, and internal drainage boards, responsible for the drainage of low-lying areas such as the Fens. The act also expanded the Fourth District to include the area formerly managed by the Skirbeck Court of Sewers, and the Witham Fourth District IDB became the responsible body for drainage from 1 April 1935.[6] Thorpe Culvert pumping station was built and commissioned in 1938, to pump water from the 5000 acres into the Steeping River. Rennie's tunnels were retained, but water only passes into the East Fen at low flows, and a sluice protects the upstream entrance to the tunnels.[18] Upgrading of Lade Bank pumping station from steam engines to oil was completed in 1940,[6] with new equipment consisting of three Ruston diesel engines connected to 50-inch (130cm) Gwynnes pumps, installed in a new building. The old building was retained, although the steam engines which if housed were scrapped.[17] Soon after the Second World War, plans for a pumping station at Hobhole sluice, to replace the gravity outfall, were approved, and the station was fully commissioned in 1957. The disastrous North Sea flood of 1953, which affected so much of the East Coast of England had little effect in the Fourth District.[6]
In 1956, work started on a new outfall for the Hobhole drain, to the south-east of the old sluices. A pumping station containing three Allen diesel engines was built, each driving a 88-inch (220cm) pump. The station could discharge 800 tons per minute (1175 Mld) when all three pumps were running.[19] Once the station was complete, the old sluice was blocked off. Further improvements to the drainage of the area occurred in the next few years, with a pumping station being built at Wrangle Horseshoe, at the eastern edge of the district, in 1959, and the first electric pump being installed at Lade Bank pumping station in 1963.[6] The electric motor drove a 36-inch (91cm) pump.[17] Two new pumping stations at Leverton and Benington were completed in 1976, again on the eastern edge and pumping directly into The Wash. The pumping station at Thorpe Culvert was managed by the Anglian Water Authority, but a replacement in 1983 was partly funded by the Fourth District. The Hobhole pumping station was modified in 1988, when the old sluice channel was reopened and the sluices were fitted with four 33-inch (84cm) submersible electric pumps, manufactured by Flygt.[19] The number of electric pumps at Lade Bank was increased to three in 1990. These schemes resulted in the Fourth District being awarded a Borough of Boston Civic Design Award for the way in which the buildings were renovated.[6]
Navigation
Lade Bank pumping station on Hobhole Drain, where there was once a lock
Historically, the drains were used for importing coal to the fens and exporting agricultural produce. They are now only used for pleasure cruising; this is restricted to the summer months, for between October and April, the water levels are maintained at a low level, so that there is scope to deal with high volumes of rainfall. Consequently, there is insufficient depth for navigation, and operation of the sluices can cause rapid changes in water level. Between April and October, their function is to provide irrigation water for agriculture, and so they are maintained at a higher level, although changes in level can still occur at short notice.[20]
Anton's Gowt lock is 75 by 18 feet (22.9 by 5.5m), but although a boat of this size could pass through it, most of the drains are inaccessible to such large craft. The only other working lock is at Cowbridge, which is 70 by 10 feet (21.3 by 3.0m), and gives access to the Maud Foster drain, enabling boats to visit the centre of Boston. From Cowbridge Lock it is also possible to visit the Lincolnshire Wolds, using the Stonebridge Drain and the East Fen and West Fen Catchwater Drains.[21]
It used to be possible to navigate Cowbridge Drain and Hobhole Drain, but they are isolated from the rest of the system by the derelict East Fen Lock.[22] Restoration of this lock was proposed by the Lincolnshire Branch of the Inland Waterways Association in 1975,[23] who sought to encourage use of the drains by offering a plaque to boats that used Cowbridge Lock,[24] but no progress has been made with this, and the lock has been infilled.[25] Hagnaby Lock, near the top of the West Fen Catchwater Drain has no gates, but it is usually possible to pass straight through, while the lock which bypassed Lade Bank pumping station on the Hobhole Drain has been converted to a sluice.[20]
In addition to sudden changes in water levels, there are a number of very low bridges with an air draft of less than 6 feet (1.8m), which can cause problems if the water levels rise a little,[20] and there are often no turning places at the end of the drains. Cruising can be hazardous due to weed growth, which forms a dense blanket in some channels, but a drain that was formerly virtually un-navigable may suddenly be cleared to improve its drainage performance and become navigable again.[26] One unexpected possibility of cruising the drains is to visit New York,[20] a hamlet just to the north of Hough Bridge on the West Fen Drain.
Structures
The Grade II listed cast iron footbridge near Cowbridge lock, made at Butterley Works in 1811
The relative isolation of much of the Witham Navigable Drains has resulted in many of the structures which were built as part of Rennie's upgrade in the early 1800s surviving. Because of their historic interest, they have been added to the listed structures register, and are Grade II Listed. They include a series of red-brick bridges with gritstone coping. On the Hobhole Drain, Freiston Bridge has three elliptical arches,[27] while Ings Bridge,[28] Hodsons Bridge (Bridge No. 8),[29] Bridge No. 9,[30] and Station Bridge (Bridge No. 10) have a single arch.[31] Hobhole Sluice, which is constructed of gritstone ashlar,[32] was retained when the Hobhole pumping station was opened in 1957. Both the 1805 buildings and those from the 1867 upgrade were retained at Lade Bank when the new pumping station was built in 1938.[33]
On the Cowbridge Drain, Baker's Bridge is another 3-arched bridge, which is listed with the adjacent sluice,[34] while Mastin's Bridge is a single-span structure.[35] On the Maud Foster Drain, Rawson's Bridge is an original single-span bridge, but further south, Bargate Bridge carries the A16 road over the drain in the centre of Boston. In order to accommodate additional traffic, the Department of Transport demolished the south side of the bridge in 1972, and widened the carriageway. A new south face was then constructed, using the original materials and to the same design.[36] Two footbridges survive, built of cast iron in 1811 by the Butterley Works. The works was established in 1790 by Benjamin Outram at Ripley, Derbyshire. One is the Hospital Bridge in Boston,[37] while the second is near Cowbridge Lock. Both carry the text "CAST AT BUTTERLEY 1811" stamped into the girders, and are supported by gritstone piers.[38] Vauxhall Bridge, a third example of the type, was replaced by a road bridge in 1924.[39] At the south end of the drain, Maud Foster sluice survives largely in original condition, although some alterations were made in the twentieth century. It consists of three elliptical arches, with gates made of timber and iron bindings. They are raised and lowered by pulleys mounted on an overhead gantry.[40] The entrance lock at Anton's Gowt is also listed. It was altered in 1848 when the Great Northern Railway Lincolnshire loop line crossed the northern end of the lock.[41]
Nunn's Bridge is the first bridge to cross the Hobhole Drain to the north of Hobhole Sluice. It has a span of 72 feet (22m), and when erected in 1948 was the first pre-stressed concrete bridge cast in situ in Britain. L G Mouchel and Partners were the designers, and the work was carried out using labour from the Fourth District IDB, overseen by G E Buchner.[42]
Water quality
The Environment Agency measure the water quality of the river systems in England. Each is given an overall ecological status, which may be one of five levels: high, good, moderate, poor and bad. There are several components that are used to determine this, including biological status, which looks at the quantity and varieties of invertebrates, angiosperms and fish. Chemical status, which compares the concentrations of various chemicals against known safe concentrations, is rated good or fail. The Witham Navigable Drains are designated as "artificial", which means that the channels have been created by human activity.[43]
The water quality of the Witham Navigable Drains was as follows in 2019.
The water quality in the river has deteriorated since 2014, when it was rated good for ecological status. In 2015 it was rated moderate and is now rated bad. The main reason for this is that the drains are artificial, with the land drainage functions and flow having a detrimental effect on fish populations. Like most rivers in the UK, the chemical status changed from good to fail in 2019, due to the presence of polybrominated diphenyl ethers (PBDE), perfluorooctane sulphonate (PFOS) and mercury compounds, none of which had previously been included in the assessment.[45]
Boyes, John; Russell, Ronald (1977). The Canals of Eastern England. David and Charles. ISBN978-0-7153-7415-3.
Cane, Ivan (October 2011). Witham Navigable Drains(PDF). Vol.The Easterling. East Anglian Waterways Association. Archived(PDF) from the original on 1 April 2016.
Cumberlidge, Jane (2009). Inland Waterways of Great Britain (8th Ed.). Imray Laurie Norie and Wilson. ISBN978-1-84623-010-3.
Fisher, Stuart (2013). British River Navigations. Bloomsbury Publishing. ISBN978-1-4729-0084-5.
Hinde, K. S. G. (2006). Fenland Pumping Engines. Landmark Publishing Ltd. ISBN978-1-84306-188-5.
Nicholson (2006). Nicholson Guides (Vol 6): Nottingham, York and the North East. Harper Collins Publishers. ISBN978-0-00-721114-2.
Squires, Roger (2008). Britain's restored canals. Landmark Publishing. ISBN978-1-84306-331-5.
The River Witham is a river almost entirely in the county of Lincolnshire in the east of England. It rises south of Grantham close to South Witham at SK8818, passes through the centre of Grantham, passes Lincoln at SK9771 and at Boston, TF3244, flows into The Haven, a tidal arm of The Wash, near RSPB Frampton Marsh. The name "Witham" seems to be extremely old and of unknown origin. Archaeological and documentary evidence shows the importance of the Witham as a navigable river from the Iron Age onwards. From Roman times it was navigable to Lincoln, from where the Fossdyke was constructed to link it to the River Trent. The mouth of the river moved in 1014 following severe flooding, and Boston became important as a port.
The River Welland is a lowland river in the east of England, some 65 miles (105 km) long. It drains part of the Midlands eastwards to The Wash. The river rises in the Hothorpe Hills, at Sibbertoft in Northamptonshire, then flows generally northeast to Market Harborough, Stamford and Spalding, to reach The Wash near Fosdyke. It is a major waterway across the part of the Fens called South Holland, and is one of the Fenland rivers that were laid out with washlands. There are two channels between widely spaced embankments with the intention that flood waters would have space in which to spread while the tide in the estuary prevented free egress. However, after the floods of 1947, new works such as the Coronation Channel were constructed to control flooding in Spalding, and the washlands are no longer used solely as pasture, but may be used for arable farming.
The River Ancholme is a river in Lincolnshire, England, and a tributary of the Humber. It rises at Ancholme Head, a spring just north of the village of Ingham and immediately west of the Roman Road, Ermine Street. It flows east and then north to Bishopbridge west of Market Rasen, where it is joined by the Rase. North of there it flows through the market town of Brigg before draining into the Humber at South Ferriby. It drains a large part of northern Lincolnshire between the Trent and the North Sea.
The River Glen is a river in Lincolnshire, England with a short stretch passing through Rutland near Essendine.
The River Idle is a river in Nottinghamshire, England whose source is the confluence of the River Maun and River Meden near Markham Moor. The Idle flows north from its source through Retford and Bawtry before entering the River Trent at West Stockwith. Its main tributaries are the River Poulter and the River Ryton. The river is navigable to Bawtry, and there is a statutory right of navigation to Retford. Most of the land surrounding the river is a broad flood plain and the river is important for conservation, with Sites of Special Scientific Interest being designated along its course.
The River Lymn is a river in Lincolnshire, England. It rises in the Wolds on the eastern slope of Castcliffe Hill in Fulletby parish. It flows south-eastwards to the Lincolnshire Marsh, where it becomes known as the Steeping River on the boundary of Great Steeping parish. The main channel is supplemented by the Wainfleet Relief Channel as it passes Wainfleet All Saints, and the relief channel is joined by the old course of the Lymn. Once the two channels rejoin, there are three flood defence structures to protect the region from flooding by the North Sea.
The Haven is the tidal river of the port of Boston, Lincolnshire in England. It provides access for shipping between Boston Deeps in The Wash and the town, particularly, the dock. It also serves as the outfall into the sea of the River Witham and of several major land drains of the northern Fens of eastern England, which are known collectively as the Witham Navigable Drains.
The South Forty-Foot Drain, also known as the Black Sluice Navigation, is the main channel for the land-drainage of the Black Sluice Level in the Lincolnshire Fens. It lies in eastern England between Guthram Gowt and the Black Sluice pumping station on The Haven, at Boston. The Drain has its origins in the 1630s, when the first scheme to make the Fen land available for agriculture was carried out by the Earl of Lindsey, and has been steadily improved since then. Water drained from the land entered The Haven by gravity at certain states of the tide until 1946, when the Black Sluice pumping station was commissioned.
Bourne Eau is a short river which rises from an artesian spring in the town of Bourne in Lincolnshire, England, and flows in an easterly direction to join the River Glen at Tongue End. Within the town, it once powered three water mills, one of which is now a heritage centre. At Eastgate, it becomes much wider as it was navigable in the 18th and 19th centuries, and this was the location of the terminal basin. Below the town it is an embanked river, as its normal level is higher than that of the surrounding Fens. Navigation ceased in the 1860s and the river now forms an important part of the drainage system that enables the surrounding fen land to be used for agriculture.
The Fens Waterways Link is a project to improve recreational boating opportunities in the counties of Cambridgeshire and Lincolnshire, England. By a combination of improvements to existing waterways and the construction of new links a circular route between Lincoln, Peterborough, Ely and Boston is planned. The project is being organised by the Environment Agency and financed from the Regional Development Agency and the European Union.
Anton's Gowt is a hamlet in the East Lindsey district of Lincolnshire, England. It is situated approximately 2 miles (3 km) north-west from the market town and port of Boston. It is the most southerly village within the East Lindsey district.
Barlings Eau is a small river near Barlings, Lincolnshire, England. It is a tributary of the River Witham, joining it near Short Ferry. It acts as the central spine for a number of other small rivers, which drain the low-lying land to either side. Most of its course is within the area managed by the Witham Third District IDB, an Internal Drainage Board responsible for land drainage. One of their pumping stations is on the banks of the river.
Pode Hole is a village in South Holland, Lincolnshire, England. It is 2 miles (3.2 km) from Spalding and 10 miles from Bourne. The village lies at the confluence of several drainage channels, where two pumping stations discharge water into Vernatt's Drain from land in Deeping Fen to the South and West. Water from Pinchbeck South Fen to the North is also lifted into Vernatt's Drain. The village arose to service the pumping stations.
Guthram Gowt is a small settlement in the South Holland district of Lincolnshire, England. It is situated 5 miles (8 km) both east from Bourne and west from Spalding, and at a bend in the River Glen.
Deeping Fen is a low-lying area in the South Holland district of Lincolnshire, England, which covers approximately 47 square miles (120 km2). It is bounded by the River Welland and the River Glen, and is extensively drained, but the efficient drainage of the land exercised the minds of several of the great civil engineers of the 17th and 18th centuries.
Witham First District IDB is an English internal drainage board which was set up under the terms of the Land Drainage Act 1930. The Board inherited the responsibilities of the Witham General Drainage Commissioners, who were first constituted by an Act of Parliament of 1762. They manage the land drainage of an area to the west of the River Witham, between Lincoln and Dogdyke, which includes the valley of the River Slea to above Sleaford.
The River Torne is a river in the north of England, which flows through the counties of South Yorkshire and North Lincolnshire. It rises at the Upper Lake at Sandbeck Hall, in Maltby in South Yorkshire, and empties into the River Trent at Keadby pumping station. Much of the channel is engineered, as it plays a significant role in the drainage of Hatfield Chase, which it crosses.
South Holland IDB is an English internal drainage board set up under the terms of the Land Drainage Act 1930. It has responsibility for the land drainage of 148.43 square miles (384.4 km2) of low-lying land in South Lincolnshire. It is unusual as its catchment area is the same as the area of the drainage district, and so it does not have to deal with water flowing into the area from surrounding higher ground. No major rivers flow through the area, although the district is bounded by the River Welland to the west and the River Nene to the east.
Witham Third District IDB is an English internal drainage board set up under the terms of the Land Drainage Act 1930. The Board inherited the responsibilities of the Witham General Drainage Commissioners, who were first constituted by an act of Parliament of 1762. They manage the land drainage of an area to the north and east of the River Witham, between Lincoln and Dogdyke, which includes the valley of the River Bain to above Hemingby, and the valleys of Barlings Eau and most of its tributaries, to the north east of Lincoln.
The Upper Witham IDB is an English Internal Drainage Board responsible for land drainage and the management of flood risk for an area to the west of the Lincolnshire city of Lincoln, broadly following the valleys of the upper River Witham, the River Till and the course of the Fossdyke Navigation.
References
↑ "Our District". Witham Fourth District IDB. Archived from the original on 16 March 2020. Retrieved 4 December 2020.
Notes: 1 Contains canalised river. 2 Partly or mostly navigable, and/or under restoration. 3 A system of canals. Canals which form part of this system are not listed here individually.
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