The Wash Ramsar Site, Wetland of International Importance
The Wash, United Kingdom
MARINE PROTECTED AREA
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The Wash is the square-mouthed bay and estuary on the northwest margin of East Anglia on the east coast of England, where Norfolk meets Lincolnshire. It is among the largest estuaries in the United Kingdom and is fed by the Rivers Witham, Welland, Nene and Great Ouse.
The Wash is the large indentation in the coastline of Eastern England that separates the curved coast of East Anglia from Lincolnshire. It is a large bay with three roughly straight sides meeting at right angles, each about 15 miles (25 km) in length. The eastern coast of the Wash is entirely within Norfolk, and extends from a point a little north of Hunstanton in the north to the mouth of the River Great Ouse at King's Lynn in the south. The opposing coast, which is roughly parallel to the east coast, runs from Gibraltar Point to the mouth of the River Welland, all within Lincolnshire. The southern coast runs roughly northwest-southeast, connects these two river mouths and is punctuated by the mouth of a third river, the River Nene.
Inland from the Wash the land is flat, low-lying and often marshy: these are the Fens of Lincolnshire, Cambridgeshire and Norfolk.
Owing to deposits of sediment and land reclamation, the coastline of the Wash has altered markedly within historical times; several towns once on the coast of the Wash (notably King's Lynn) are now some distance inland. Much of the Wash itself is very shallow, with several large sandbanks—such as Breast Sand, Bulldog Sand, Roger Sand and Old South Sand—exposed at low tide, especially along its south coast. For this reason, navigation in the Wash can be hazardous for boats. A lightship marks the entrance to the Lynn Channel, the one safe channel from the North Sea to the Wash's south coast.
A re-survey of the coastline of The Wash carried out by The Ordnance Survey in 2011 revealed an estimated additional 3,000 acres of land on the coastline of The Wash had been created by accretion since the previous surveys carried out between 1960 and 1980.
The Wash varies enormously in water temperature throughout the year. Winter temperatures are brought near freezing from the cold North Sea flows. Summer water temperatures can reach into the low 20s degrees C (about 70 degrees F) after prolonged high ambient air temperature and sun. This effect, which typically happens in the shallow areas around beaches, and often only in pockets of water, is exaggerated by the large sheltered tidal reach.
At the end of the latest glaciation, and while the sea level remained lower than it is today, the rivers Witham, Welland, Glen, Nene and Great Ouse joined into a large river.
The deep valley of the Wash was formed, not by the interglacial river, but by ice of the Wolstonian and Devensian stages flowing southwards up the slope represented by the modern coast and forming tunnel valleys of which the Silver Pit is one of many. It was this process which gave the Silver Pit its depth and narrowness. When the tunnel valley was free of ice and seawater, it was occupied by the river. This kept it free of sediment, unlike most of the tunnel valleys. Since the sea flooded it, the valley seems to have been kept open by tidal action. During the Ipswichian Stage, though the Wash River probably flowed by way of the site of the Silver Pit, the tunnel valley will not have been formed at this stage as its alignment seems inconsistent.
The Wash is a Special Protection Area (SPA) under European Union legislation. It is made up of very extensive salt marshes, major intertidal banks of sand and mud, shallow waters and deep channels. The seawall at Freiston has been breached in three places to increase the saltmarsh area, to provide an extra habitat for birds, particularly waders, and also as a natural flood prevention measure. The extensive creeks in the salt marsh, and the vegetation that grows there, helps dissipate wave energy thus improving the protection afforded to land behind the saltmarsh. This last aspect is an example of the recently developing exploration of the possibilities of sustainable coastal management by adopting soft engineering techniques. The same scheme includes new brackish lagoon habitat.
On the eastern side of the Wash, one finds low chalk cliffs with their famous stratum of red chalk, at Hunstanton, and gravel pits (lagoons) at Snettisham RSPB reserve, which are an important roost for waders at high tide. This SPA borders onto the North Norfolk Coast Special Protection Area.
To the northwest, the Wash extends to Gibraltar Point, another Special Protection Area.
The partially confined nature of the Wash habitats, combined with the ample tidal flows, allows shellfish to breed, especially shrimp, cockles and mussels. Some water birds, e.g. oystercatchers, feed on shellfish. It is also an important breeding area for common terns, and a feeding area for marsh harriers. Migrating birds, such as geese, ducks and wading birds, come to the Wash in huge numbers to spend the winter, with an average total of around 400,000 birds present at any one time. It has been estimated that around two million birds will use the Wash for feeding and roosting during their annual migrations.
The Wash is recognised as being Internationally Important for 17 species of bird. This includes pink-footed goose, dark-bellied brent goose, shelduck, pintail, oystercatcher, ringed plover, grey plover, golden plover, lapwing, knot, sanderling, dunlin, black-tailed godwit, bar-tailed godwit, curlew, redshank and turnstone.
It was featured on the television programme Seven Natural Wonders as one of the wonders of Yorkshire and Lincolnshire.
In Roman Britain, embankments were built around the Wash's margins to protect agricultural land from flooding. However these fell into disrepair after the Roman withdrawal in the year 407.
Before the 12th century, when drainage and embankment efforts led by monks began to separate the land from the estuarine mudflats, the Wash was the tidal part of The Fens that extended as far as Cambridge and Peterborough.
From the year 865 to sometime around the year 1066, the Wash was used by the Vikings as a major route to invade East Anglia and Middle England, with Danes establishing themselves in Cambridge in the year 875.
The local people put up fierce resistance against the Normans for some time after the Conquest of the year 1066.
Documents prior to the 16th century referred to the Wash as Metaris Æstuarium ("The Reaping/Mowing/Cutting-Off Estuary") - the name given to it by Ptolemy in Roman times, and still in occasional use today. In the mid-16th century, when large-scale drainage and coastal reclamation works led by Dutch engineers began in and around the Wash, documents began to refer to "Waashe" or "Wysche", but only for the tidal parts of the Rivers Welland and Nene. During the 17th century, however, "The Washes" came to describe "a very large arme" of the "German Ocean" (i.e. the North Sea).
Drainage and reclamation works around the Wash continued up to the 1970s, with large areas of salt marsh progressively enclosed by banks and converted to agricultural land, so that the Wash is now surrounded by artificial sea defences on all three landward sides.
In the 1970s, two large circular banks were built in the Terrington Marsh area of the Wash, as part of an abortive attempt to turn the entire estuary into a fresh water reservoir. The plan failed, not least because the banks were built using mud dredged from the salt marsh, which then salinated stored fresh water.
The most famous incident associated with the Wash is King John losing the Crown Jewels. According to contemporary reports, John travelled from Spalding in Lincolnshire to Bishop's Lynn, in Norfolk, was taken ill and decided to return. While he took the longer route by way of Wisbech, he sent his baggage train, including his crown jewels, along the causeway and ford across the mouth of the Wellstream. This route was usable only at low tide. The horse-drawn wagons moved too slowly for the incoming tide, and many were lost.
The location of the accident is usually supposed to be somewhere near Sutton Bridge, on the River Nene. The name of the river changed as a result of redirection of the Great Ouse during the 17th century, and Bishop's Lynn became King's Lynn as a result of King Henry VIII's rearrangement of the English Church.
Astronomical study, however, permits a reconstruction of the tide table for the relevant day and it seems most likely, given travel in the usual daylight hours, that the loss would have been incurred in crossing the Welland Estuary at Fosdyke.
There is also a suspicion that John left his jewels in Lynn as security for a loan and arranged for their "loss". This looks likely to be apocryphal. However that may be, he stayed the following night, of 12 to 13 October 1216, at Swineshead Abbey, moved on to Newark-on-Trent and died of his illness on 19 October.
Sailing from out of the South Lincolnshire Fens into the Wash (especially with respect to shell-fishing) is traditionally known locally as "Going Down Below". Although still used today, the origin of the phrase is unknown, and is generally an oral tradition without documentary evidence. This phrase is however also used in Newfoundland, particularly the Bonavista area. It is used to refer to going down to sea level, mainly a beach or water mark.
The Boston Stump, a Lincolnshire landmark, can on clearer days be seen from the Norfolk side of the Wash. The Outer Trial Bank, a remnant of a 1970s government experiment, lies approximately 2 miles (3.2 km) off the Lincolnshire coast near the River Nene.
In 1934 a proposal was made with the support of Malcolm Campbell, the famous racing driver and world speed record holder, to build a 15 mile long racetrack on reclaimed land from Boston to Gibraltar Point, near Skegness. The race track would have also been used as a road to the resort of Skegness when there was no racing. There was also to be a long lake for boat racing inside the track loop. In the financial climate of the 1930s the project did not proceed.
Coordinates: 52°55′N 00°15′E / 52.917°N 0.250°E / 52.917; 0.250
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