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Kew Railway Bridge

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81-569: Kew Railway Bridge spans the River Thames in London , England , between Kew and Strand-on-the-Green , Chiswick . The bridge was opened in 1869. The bridge, which was given Grade II listed structure protection in 1983, was designed by W. R. Galbraith and built by Brassey & Ogilvie for the London and South Western Railway . The bridge is part of an extension to the latter company's railway line from Acton Junction to Richmond . In 1964,

162-552: A network of creeks. Lying below sea level, it is prone to flooding at exceptional tides, but has nevertheless been inhabited since Roman times. The usually quoted source of the Thames is at Thames Head (at grid reference ST980994 ). This is about 1.5 mi (2.4 km) north of the village of Kemble in southern Gloucestershire , near the town of Cirencester , in the Cotswolds . However, Seven Springs near Cheltenham , where

243-805: A series of long cuts in 1794, and Truss adopted the same idea. Rennie and William Jessop again proposed four long cuts in 1805, each about 1.5 miles (2.4 km), but the Navigation Committee were thwarted by strong opposition from landowners. Zacchary Allnutt, by then Surveyor for the Second and Third Districts, stretching from Staines to Mapledurham near Reading, suggested locks at Chertsey, Sunbury and Teddington in 1805. Rennie submitted new proposals in 1809 for nine locks between Staines and Twickenham; two would be without weirs, seven would require large weirs to be built. Finally Leach drafted plans in 1810, which he suggested were "at once practicable and expedient,

324-442: A small skiff lock. The barge lock was made to accommodate long barges, steamers or passenger ferries and has an additional set of gates half-way to operate more quickly for shorter craft. The staggered structures incorporate two reinforced narrow islands. The upper island is traversed by and accessible by the lock gates or Teddington Lock Footbridge . The greater lock is against the general south (right, towpath or Surrey) bank of

405-499: A small part of western England; the river is fed by at least 50 named tributaries . The river contains over 80 islands . With its waters varying from freshwater to almost seawater, the Thames supports a variety of wildlife and has a number of adjoining Sites of Special Scientific Interest , with the largest being in the North Kent Marshes and covering 20.4 sq mi (5,289 ha). According to Mallory and Adams,

486-616: A summer venue for organised swimming, which is prohibited on safety grounds in a stretch centred on Central London . After the river took its present-day course, many of the banks of the Thames Estuary and the Thames Valley in London were partly covered in marshland , as was the adjoining Lower Lea Valley . Streams and rivers like the River Lea , Tyburn Brook and Bollo Brook drained into

567-468: A total output of 492 kilowatts (660 hp). Environmental concerns, notably those raised by anglers about the potential effect on fish populations, prompted further environmental surveys during 2012. The outcome of these considerations is awaited before the London Borough of Richmond upon Thames will determine whether planning permission is to be granted for the scheme. The lock is on the towpath on

648-620: Is a complex of three locks and a weir on the River Thames between Ham and Teddington in the London Borough of Richmond upon Thames , England. Historically in Middlesex , it was first built in 1810. The limit of legal powers between the Port of London Authority , the navigation authority downstream to the North Sea and that upstream to small headwaters of the river, the Environment Agency ,

729-466: Is a landmark on the Boat Race course, while Glover's Island forms the centre of a view from Richmond Hill . Islands of historical interest include Magna Carta Island at Runnymede , Fry's Island at Reading, and Pharaoh's Island near Shepperton. In more recent times Platts Eyot at Hampton was the place where Motor Torpedo Boats (MTB)s were built, Tagg's Island near Molesey was associated with

810-402: Is an important water source, especially in the drier months, so maintaining its quality and quantity is extremely important. Groundwater is vulnerable to surface pollution, especially in highly urbanised areas. Brooks, canals and rivers, within an area of 3,842 sq mi (9,951 km ), combine to form 38 main tributaries feeding the Thames between its source and Teddington Lock . This

891-486: Is arrested at Teddington Lock. Thames Television had its purpose-built Teddington Studios at Teddington Lock. In a third-season episode of Murder Maps Teddington Lock was the location of the brutal murder of two teenage girls in the summer of 1953. The murderer, Alfred Whiteway was apprehended, found guilty and was executed in December 1953. In Ben Aaronovitch's Rivers of London book series Teddington Lock marks

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972-628: Is believed that Tamesubugus' name was derived from that of the river. Tamese was referred to as a place, not a river in the Ravenna Cosmography ( c.  AD 700 ). The river's name has always been pronounced with a simple t /t/ ; the Middle English spelling was typically Temese and the Brittonic form Tamesis . A similar spelling from 1210, "Tamisiam" (the accusative case of "Tamisia"; see Kingston upon Thames § Early history ),

1053-545: Is formed for much of its length for shipping and supplies: through the Port of London for international trade, internally along its length and by its connection to the British canal system. The river's position has put it at the centre of many events in British history, leading to it being described by John Burns as "liquid history". Two broad canals link the river to other rivers: the Kennet and Avon Canal ( Reading to Bath ) and

1134-678: Is found in Magna Carta . The Thames through Oxford is sometimes called the Isis . Historically, and especially in Victorian times, gazetteers and cartographers insisted that the entire river was correctly named the Isis from its source down to Dorchester on Thames and that only from this point, where the river meets the Thame and becomes the "Thame-isis" (supposedly subsequently abbreviated to Thames) should it be so called. Ordnance Survey maps still label

1215-451: Is marked nearby by an obelisk on the " Surrey " ( towpath , right) bank. The weir named Teddington Weir marks the river's usual tidal limit and is the lowest on the Thames. This lock is the lowest full-tide lock and second lowest of all-tide locks on the Thames. The complex of civil engineering or infrastructure in essence consists of a large long weir and three locks: a conventional launch lock in regular use, very large barge lock and

1296-507: Is now owned by Network Rail and used by London Overground for North London line passenger trains running between Richmond and Stratford . The same tracks are also used by London Underground's District line trains running between Richmond and Upminster . In The Dalek Invasion of Earth , a 1964 serial from the BBC 's Doctor Who , the TARDIS materialises under the bridge; it is trapped when

1377-452: Is responsible for managing the flow of water to help prevent and mitigate flooding, and providing for navigation: the volume and speed of water downstream is managed by adjusting the sluices at each of the weirs and, at peak high water, levels are generally dissipated over preferred flood plains adjacent to the river. Occasionally, flooding of inhabited areas is unavoidable and the agency issues flood warnings. Due to stiff penalties applicable on

1458-898: Is shared by many other river names in Britain, such as the River Tamar at the border of Devon and Cornwall , several rivers named Tame in the Midlands and North Yorkshire , the Tavy on Dartmoor , the Team of the North East, the Teifi and Teme of Wales , the Teviot in the Scottish Borders and a Thames tributary, the Thame . Kenneth H. Jackson proposed that the name of

1539-687: Is the longest river entirely in England and the second-longest in the United Kingdom , after the River Severn . The river rises at Thames Head in Gloucestershire and flows into the North Sea near Tilbury , Essex and Gravesend , Kent, via the Thames Estuary . From the west, it flows through Oxford (where it is sometimes called the Isis), Reading , Henley-on-Thames and Windsor . The Thames also drains

1620-404: Is the usual tidal limit ; however, high spring tides can raise the head water level in the reach above Teddington and can occasionally reverse the river flow for a short time. In these circumstances, tidal effects can be observed upstream to the next lock beside Molesey weir , which is visible from the towpath and bridge beside Hampton Court Palace . Before Teddington Lock was built in 1810–12,

1701-569: Is traditionally (and in navigation use) termed the "Surrey side" at Hampton Court Bridge. The river makes an acute inside angle on this reach — Teddington and Molesey locks are less than half the distance apart by land. The lock was the location of the Fish-Slapping Dance sketch in Monty Python's Flying Circus . In episode 1 of series 5 of the BBC TV police drama New Tricks , the villain

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1782-769: The Berwyn Mountains in North Wales . About 450,000 years ago, in the most extreme Ice Age of the Pleistocene , the Anglian , the furthest southern extent of the ice sheet reached Hornchurch in east London, the Vale of St Albans, and the Finchley Gap . It dammed the river in Hertfordshire , resulting in the formation of large ice lakes, which eventually burst their banks and caused

1863-525: The British Geological Survey from the banks of the tidal River Thames contain geochemical information and fossils which provide a 10,000-year record of sea-level change. Combined, this and other studies suggest that the Thames sea-level has risen more than 30 m during the Holocene at a rate of around 5–6 mm per year from 10,000 to 6,000 years ago. The rise of sea level dramatically reduced when

1944-562: The Churn (which feeds into the Thames near Cricklade ) rises, is also sometimes quoted as the Thames' source, as this location is farthest from the mouth and adds some 14 mi (23 km) to the river's length. At Seven Springs above the source is a stone with the Latin hexameter inscription "Hic tuus o Tamesine pater septemgeminus fons", which means "Here, O Father Thames, [is] your sevenfold source". The springs at Seven Springs flow throughout

2025-664: The Grand Union Canal (London to the Midlands). The Grand Union effectively bypassed the earlier, narrow and winding Oxford Canal which remains open as a popular scenic recreational route. Three further cross-basin canals are disused but are in various stages of reconstruction: the Thames and Severn Canal (via Stroud ), which operated until 1927 (to the west coast of England), the Wey and Arun Canal to Littlehampton , which operated until 1871 (to

2106-574: The Longford River , which feeds the water-features of Hampton Court Palace, runs out of a grated culvert opposite Raven's Ait and below the Water Gallery. After Hampton Court Bridge (along the side of the weir stream) the bank adopts food/hotel use then residential use. On the Surrey side is a consistent green buffer and towpath between the river and Ham / Kingston , widening to Canbury Gardens , until

2187-480: The River Lea can be considered another boundary. Most of the local riverside was also marshland. The land was drained and became farmland; it was built on after the Industrial Revolution . Canvey Island in southern Essex (area 18.45 km , 7.12 sq mi; population 40,000 ) was once marshy, but is now a fully reclaimed island in the Thames estuary, separated from the mainland of south Essex by

2268-640: The Royal Academy , London , in 1785. They are now on show at the River and Rowing Museum in Henley). Richard Coates suggests that while the river was as a whole called the Thames, part of it, where it was too wide to ford, was called * (p)lowonida . This gave the name to a settlement on its banks, which became known as Londinium , from the Indo-European roots * pleu- "flow" and * -nedi "river" meaning something like

2349-497: The Thames Barrier , which protects central London from flooding by storm surges . Below the barrier, the river passes Woolwich , Thamesmead , Dagenham , Erith , Purfleet , Dartford , West Thurrock , Northfleet , Tilbury and Gravesend before entering the Thames Estuary near Southend-on-Sea . The sea level in the Thames estuary is rising and the rate of rise is increasing. Sediment cores up to 10 m deep collected by

2430-535: The Thanetian stage of the late Palaeocene epoch. Until around 500,000 years ago, the Thames flowed on its existing course through what is now Oxfordshire , before turning to the north-east through Hertfordshire and East Anglia and reaching the North Sea near present-day Ipswich . At this time the river-system headwaters lay in the English West Midlands and may, at times, have received drainage from

2511-510: The "Middlesex" and "Surrey" banks. On the Middlesex (Teddington etc.) side of the river going upstream, the bank generally consists of homes and gardens/communal grounds up to and inclusive of Hampton Wick at Kingston Bridge; Teddington Studios , Lensbury Club, watersports clubs/a football club and the nature reserve at Trowlock are on the stretch. Above Kingston Bridge is Hampton Court Park , which stretches as far as Hampton Court Bridge. Half

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2592-463: The First District of the Thames, stretching from Staines to Teddington, were drawn up. Stephen Leach took over the post of Clerk of Works for the First District in 1802, following the retirement of Charles Truss at the age of 82. Just before his retirement, Truss proposed locks at Molesey and Teddington, each having a weir with long tumbling bays, similar to modern practice. John Rennie had suggested

2673-708: The North Sea, and the Thames Barrier was built in the 1980s to protect London from this risk. The Nore is the sandbank that marks the mouth of the Thames Estuary , where the outflow from the Thames meets the North Sea . It is roughly halfway between Havengore Creek in Essex and Warden Point on the Isle of Sheppey in Kent. Until 1964 it marked the seaward limit of the Port of London Authority. As

2754-594: The River Thames on the Tideway include the rivers Crane , Brent , Wandle , Ravensbourne (the final part of which is called Deptford Creek ), Lea (the final part of which is called Bow Creek ), Roding (Barking Creek), Darent and Ingrebourne . In London, the water is slightly brackish with sea salt, being a mix of sea and fresh water. This part of the river is managed by the Port of London Authority . The flood threat here comes from high tides and strong winds from

2835-501: The Surrey side in Ham about a mile below Kingston-upon-Thames . Parking is generally over 100 m distant. The nearest road is Riverside Drive in Ham. Alternatively the lock can be reached from Ferry Road Teddington over the footbridges which cross the river there. Located 0.5 miles (0.80 km) above the lock is Trowlock Island , towards the Teddington bank, followed by Steven's Eyot in

2916-473: The Thames Estuary), the river is subject to tidal activity from the North Sea . Before the lock was installed, the river was tidal as far as Staines, about 16 mi (26 km) upstream. London, capital of Roman Britain , was established on two hills, now known as Cornhill and Ludgate Hill . These provided a firm base for a trading centre at the lowest possible point on the Thames. A river crossing

2997-517: The Thames as "River Thames or Isis" down to Dorchester. Since the early 20th century this distinction has been lost in common usage outside of Oxford, and some historians suggest the name Isis is nothing more than a truncation of Tamesis , the Latin name for the Thames. Sculptures titled Tamesis and Isis by Anne Seymour Damer are located on the bridge at Henley-on-Thames , Oxfordshire (the original terracotta and plaster models were exhibited at

3078-488: The Thames is not Indo-European (and of unknown meaning), while Peter Kitson suggested that it is Indo-European but originated before the Britons and has a name indicating "muddiness" from a root *tā- , 'melt'. Early variants of the name include: Indirect evidence for the antiquity of the name "Thames" is provided by a Roman potsherd found at Oxford, bearing the inscription Tamesubugus fecit (Tamesubugus made [this]). It

3159-517: The Thames' discharge is low considering its length and breadth: the Severn has a discharge almost twice as large on average despite having a smaller drainage basin . In Scotland , the Tay achieves more than double the Thames' average discharge from a drainage basin that is 60% smaller. Along its course are 45 navigation locks with accompanying weirs . Its catchment area covers a large part of south-eastern and

3240-562: The Thames, from Middle English Temese , is derived from the Brittonic name for the river, Tamesas (from * tamēssa ), recorded in Latin as Tamesis and yielding modern Welsh Tafwys "Thames". The name element Tam may have meant "dark" and can be compared to other cognates such as Russian темно ( Proto-Slavic * tĭmĭnŭ ), Lithuanian tamsi "dark", Latvian tumsa "darkness", Sanskrit tamas and Welsh tywyll "darkness" and Middle Irish teimen "dark grey". The origin

3321-591: The associated weirs having ample capacity for flood conditions. Rennie, Leach and the Navigation Committee visited the sites in July, to finalise the positioning of the lock. Leach then took charge of the work, which was undertaken by contractors Joseph Kimber and John Dows who also built Sunbury Lock. Work at Teddington started in September 1810, but there were delays caused by flooding in November and December, and Leach awarded

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3402-475: The bottom sill. Consideration was given to removing the lock altogether in 1840. However, it was decided to rebuild the lock and in June 1854 proposals included providing capacity for seagoing craft with a side lock for pleasure traffic. In June 1857 the first stone of the new lock was laid at the present position, the central of the three, opened in 1858 together with the narrow skiff lock, . The boat slide, separate,

3483-578: The bridge collapses. A District line train can be seen crossing the bridge in the 1965 film Four in the Morning . 51°29′02″N 0°16′46″W  /  51.48389°N 0.27944°W  / 51.48389; -0.27944 River Thames The River Thames ( / t ɛ m z / TEMZ ), known alternatively in parts as the River Isis , is a river that flows through southern England including London . At 215 miles (346 km), it

3564-579: The case of the Colne ), and man-made distributaries such as the Longford River . Three canals intersect this stretch: the Oxford Canal , Kennet and Avon Canal and Wey Navigation . Its longest artificial secondary channel (cut), the Jubilee River , was built between Maidenhead and Windsor for flood relief and completed in 2002. The non-tidal section of the river is managed by the Environment Agency , which

3645-408: The centre of the river. There are then Kingston Railway and Kingston Bridges . After 1 mile (1.6 km) the river then curves sharply to the right with Thames Ditton Island towards the village of the same name. Finally before Molesey Lock is Hampton Court Bridge . Despite settlements on both sides of the lock having formed part of London since the 1960s, the banks are still often referred to as

3726-423: The confluence, the overall length of the Thames measured from Seven Springs, at 229 mi (369 km), is greater than the Severn's length of 220 mi (350 km). Thus, the "Churn/Thames" river may be regarded as the longest natural river in the United Kingdom. The stream from Seven Springs is joined at Coberley by a longer tributary which could further increase the length of the Thames, with its source in

3807-415: The contractors an extra £500. The lock was finished and opened in June 1811, but the weir was incomplete. The cofferdam protecting the works would need to be removed as river levels rose in the winter, which would have delayed completion until the following July, and so again Leach stepped in, awarding advance payments to the contractors, which enabled them to finish on time. The lock was further upstream than

3888-423: The fact the Richmond Lock and half-tide barrages limits the fall of water thereby maintaining a head of water to aid navigability at and around low tide. Though the weir at Teddington Weir marks the managed river's usual tidal limit , after prolonged rainfall causing very high fluvial flow, specifically at high tide, a higher limit of slack water (stand of the tide) causes eddies to arise as far upstream as

3969-412: The flowing river or the wide flowing unfordable river. The river gives its name to three informal areas: the Thames Valley , a region of England around the river between Oxford and West London; the Thames Gateway ; and the greatly overlapping Thames Estuary around the tidal Thames to the east of London and including the waterway itself. Thames Valley Police is a formal body that takes its name from

4050-533: The grounds of the National Star College at Ullenwood . The Thames flows through or alongside Ashton Keynes , Cricklade , Lechlade , Oxford , Abingdon-on-Thames , Wallingford , Goring-on-Thames and Streatley (at the Goring Gap ), Pangbourne and Whitchurch-on-Thames , Reading , Wargrave , Henley-on-Thames , Marlow , Maidenhead , Windsor and Eton , Staines-upon-Thames and Egham , Chertsey , Shepperton , Weybridge , Sunbury-on-Thames , Walton-on-Thames , Molesey and Thames Ditton . The river

4131-510: The high-rise town centre is reached. The town's buildings switch to entertainment immediately south of Kingston Bridge. After the canalised mouth of the Hogsmill the riverside switches to a promenade with road by residential uses until Seething Wells reservoirs. Raven's Ait is upstream of the bridges in the centre of the river at Surbiton , followed by a marina. Long and Thames Dittons 's riverside homes and pubs follow until beyond Thames Ditton Island. A riverside park and playing fields flank

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4212-404: The ice melt nearly concluded over the past 4,000 years. Since the beginning of the 20th century, rates of sea level rise range from 1.22 mm per year to 2.14 mm per year. The Thames River Basin District, including the Medway catchment, covers an area of 6,229 sq mi (16,130 km ). The entire river basin is a mixture of urban and rural, with rural landscape predominating in

4293-416: The impresario Fred Karno and Eel Pie Island at Twickenham was the birthplace of the South East's R&B music scene. Westminster Abbey and the Palace of Westminster (commonly known today as the Houses of Parliament ) were built on Thorney Island , which used to be an eyot . Researchers have identified the River Thames as a discrete drainage line flowing as early as 58 million years ago, in

4374-401: The least expensive, and the most likely to pass through Parliament without opposition and yet calculated to remedy the most prominent evils complained of." An Act of Parliament was obtained by the City of London Corporation in June 1810, which authorised construction of locks and weirs at Chertsey , Shepperton , Sunbury and Teddington. Each would be 150 by 20 feet (45.7 by 6.1 m) with

4455-403: The level of Cross Deep Ait , a former ait adjacent to Swan Island downstream, to protect it from flooding. The footbridges are Grade II listed . In 1940 Teddington Lock was the assembly point for an enormous flotilla of small ships from the length of the River Thames to be used in the evacuation of Dunkirk . Early twenty-first century renovation and improvement work in the area around

4536-450: The lock had timber sides up to normal head water level, and turf above that. The crest of the weir was 3.5 feet (1.1 m) above low water level at Teddington, but following the removal of the piers of old London Bridge (demolished 1831) in 1832, the drop increased to 4.5 feet (1.4 m) and increased to 6 feet (1.8 m) when dredging of the river was carried out. At tidally lower water occasional grounding of barges took place below

4617-428: The lock keeper was granted permission to keep "a blunderbuss with bayonet attached thereto" to ward off attacks. By 1827 the timber lock needed considerable repair and in 1829 the weir was destroyed by an accumulation of ice. It is noted that in 1843 the lock keeper prevented a steam vessel from ascending the lock. At that time steam vessels were limited to travel as far (upstream) as Richmond. As originally built,

4698-421: The locks was undertaken as part of the Thames Landscape Strategy Teddington Gateway project. In 2009 a local community group initiated a feasibility study for exploiting Teddington's weir for electricity generation, inspired by similar community-led generation schemes; Torrs Hydro and Settle Hydro . The study was encouraging and the Ham Hydro project now proposes using three reverse- Archimedean screws with

4779-474: The markers in less than one minute. The reach is home to at least five sailing clubs, five rowing clubs, two skiffing and punting clubs, the Royal Canoe Club and two Sea Cadet centres. Numerous pleasure boats ply for trade, London Riverboat services and chartered trips between Kingston and Hampton Court. The Thames Path as its towpath follows the Surrey side to Kingston Bridge where it crosses to run alongside Hampton Court Park, before returning to what

4860-412: The mouth of the Mole until Hampton Court Bridge, near to the top of the reach, overlooking part of the Palace. Hampton Court railway station is before the bridge and just above it is Molesey Lock . There are navigation transit markers between Kingston Bridge and Raven's Ait on the Hampton Court bank, to allow river users to check their speed. A powered boat may not pass except in emergencies between

4941-426: The non-tidal river, which is a drinking water source before treatment, sanitary sewer overflow from the many sewage treatment plants covering the upper Thames basin should be rare in the non-tidal Thames. However, storm sewage overflows are still common in almost all the main tributaries of the Thames despite claims by Thames Water to the contrary. Below Teddington Lock (about 55 mi or 89 km upstream of

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5022-557: The north arch under Kew Railway Bridge was acquired by Strand on the Green Sailing Club , and was rented from British Rail and then from Network Rail. It consists of five wrought iron lattice girder spans of 35 metres each. The cast iron piers are decorated in three stages. During the Second World War a pillbox was built to guard it on the south end, along with an open enclosure to fire an anti-tank gun from. The bridge carries two tracks which are electrified with both third rail and London Underground -style fourth rail . It

5103-445: The present lock complex at the point where the footbridge now crosses. It comprised three pairs of gates as stipulated in the act. Total cost for lock, cut, weir, ballast and ground was £22,035 10 s. 7 + 1 ⁄ 2 d. (equivalent to £1,975,000 in 2023) of which the land from Lord Dysart's estate cost £282 10 s. 5 d. . The lock was, at first, highly unpopular with the local fishermen and bargemen. After attempts to smash it,

5184-534: The river passes Pimlico and Vauxhall , and then forms one of the principal axes of the city, from the Palace of Westminster to the Tower of London . At this point, it historically formed the southern boundary of the medieval city, with Southwark , on the opposite bank, then being part of Surrey . Beyond central London, the river passes Bermondsey , Wapping , Shadwell , Limehouse , Rotherhithe , Millwall , Deptford , Greenwich , Cubitt Town , Blackwall , New Charlton and Silvertown , before flowing through

5265-406: The river to divert onto its present course through the area of present-day London. The ice lobe which stopped at present-day Finchley deposited about 14 metres of boulder clay there. Its torrent of meltwater gushed through the Finchley Gap and south towards the new course of the Thames, and proceeded to carve out the Brent Valley in the process. Teddington Lock Teddington Lock

5346-439: The river was tidal at peak spring tides as far as Staines upon Thames . In descending order, non-related tributaries of the non-tidal Thames, with river status, are the Churn , Leach , Cole , Ray , Coln , Windrush , Evenlode , Cherwell , Ock , Thame , Pang , Kennet , Loddon , Colne , Wey and Mole . In addition, there are occasional backwaters and artificial cuts that form islands, distributaries (most numerous in

5427-450: The river which is for 500 m north-east here ; a middle lock being that most regularly used spans a long thin island which has lawns, places for boat owners to sit and a lock keeper's cabin and short thin island which is a thin wedge of concrete and a broad canoe/kayak stepped portage facility. The river downstream of the lock is the Richmond and Twickenham reach of the Tideway , a 3.2-mile (5.1 km) reach of semi- tidal river due to

5508-530: The river, covering three counties . In non-administrative use, the river's name is used in those of Thames Valley University , Thames Water , Thames Television , publishing company Thames & Hudson , Thameslink (north–south rail service passing through central London ) and South Thames College . An example of its use in the names of historic entities is the Thames Ironworks and Shipbuilding Company . Marks of human activity, in some cases dating back to Pre-Roman Britain , are visible at various points along

5589-399: The river, while some islands, e.g. Thorney Island , formed over the ages. The northern tip of the ancient parish of Lambeth , for example, was marshland known as Lambeth Marshe , but it was drained in the 18th century; the street names Lower Marsh and Upper Marsh preserve a memory. Until the middle of the Victorian era, malaria was commonplace beside the River Thames, even in London, and

5670-467: The river. These include a variety of structures connected with use of the river, such as navigations, bridges and watermills , as well as prehistoric burial mounds . The lower Thames in the Roman era was a shallow waterway winding through marshes. But centuries of human intervention have transformed it into a deep tidal canal flowing between 200 miles of solid walls; these defend a floodplain where 1.5 million people work and live. A major maritime route

5751-494: The sandbank was a major hazard for shipping coming in and out of London, in 1732 it received the world's first lightship . This became a major landmark, and was used as an assembly point for shipping. Today it is marked by Sea Reach No. 1 Buoy. The River Thames contains over 80 islands ranging from the large estuarial marshlands of the Isle of Sheppey and Canvey Island to small tree-covered islets like Rose Isle in Oxfordshire and Headpile Eyot in Berkshire. They are found all

5832-528: The south coast), and the Wilts & Berks Canal . Rowing and sailing clubs are common along the Thames, which is navigable to such vessels. Kayaking and canoeing also take place. Major annual events include the Henley Royal Regatta and the Boat Race , while the Thames has been used during two Summer Olympic Games : 1908 ( rowing ) and 1948 ( rowing and canoeing ). Safe headwaters and reaches are

5913-613: The top of this reach , the next lock . The large, bow-shaped Teddington Weir is against the opposite bank. A series of two footbridges at differing heights make up a structure which crosses the locks, the middle island that has the lock keeper's cabin and the weir pool, Teddington Lock Footbridge . The Navigation Act obtained in April 1771 by the Thames Navigation Commission did not allow them to build locks below Maidenhead Bridge , but from 1802, several plans for locks in

5994-755: The way from Fiddler's Island in Oxfordshire to the Isle of Sheppey in Kent. Some of the largest inland islands, for example Formosa Island near Cookham and Andersey Island at Abingdon, were created naturally when the course of the river divided into separate streams. In the Oxford area the river splits into several streams across the floodplain ( Seacourt Stream , Castle Mill Stream , Bulstake Stream and others), creating several islands ( Fiddler's Island , Osney and others). Desborough Island , Ham Island at Old Windsor and Penton Hook Island were artificially created by lock cuts and navigation channels. Chiswick Eyot

6075-412: The western part. The area is among the driest in the United Kingdom. Water resources consist of groundwater from aquifers and water taken from the Thames and its tributaries, much of it stored in large bank-side reservoirs . The Thames itself provides two-thirds of London's drinking water, while groundwater supplies about 40 per cent of public water supplies in the overall catchment area. Groundwater

6156-482: The whole of Greater London . The lower reaches of the river are called the Tideway , derived from its long tidal reach up to Teddington Lock . Its tidal section includes most of its London stretch and has a rise and fall of 23 ft (7 m). From Oxford to the estuary, the Thames drops by 55 metres (180 ft). Running through some of the drier parts of mainland Britain and heavily abstracted for drinking water,

6237-566: The year, while those at Thames Head are seasonal (a winterbourne ). With a length of 215 mi (346 km), the Thames is the longest river entirely in England. (The longest river in the United Kingdom, the Severn , flows partly in Wales .) However, as the River Churn, sourced at Seven Springs, is 14 mi (23 km) longer than the section of the Thames from its traditional source at Thames Head to

6318-406: Was added in 1869 and in the 1870s the weir collapsed twice causing enormous damage. After the weir had been rebuilt in 1871, sluice bays spanned around 240 feet (73 m), similar to the tumbling bays. The footbridges were opened in 1889 and finally the barge lock, the largest lock on the river, was built in 1904–1905. 7,000 cubic yards (5,400 m ) of the extracted gravel was used to raise

6399-479: Was built at the site of London Bridge . London Bridge is now used as the basis for published tide tables giving the times of high tide . High tide reaches Putney about 30 minutes later than London Bridge, and Teddington about an hour later. The tidal stretch of the river is known as "the Tideway ". Tide tables are published by the Port of London Authority and are available online. Times of high and low tides are also posted on Twitter. The principal tributaries of

6480-458: Was frequently lethal. Some cases continued to occur into the early 20th century. Draining of the marshes helped with its eradication, but the causes are complex and unclear. The East End of London , also known simply as the East End , was the area of London east of the medieval walled City of London and north of the River Thames, although it is not defined by universally accepted formal boundaries;

6561-610: Was subject to minor redefining and widening of the main channel around Oxford, Abingdon and Marlow before 1850, when further cuts to ease navigation reduced distances further. Molesey faces Hampton , and in Greater London the Thames passes Hampton Court Palace , Surbiton , Kingston upon Thames , Teddington , Twickenham , Richmond (with a famous view of the Thames from Richmond Hill), Syon House , Kew , Brentford , Chiswick , Barnes , Hammersmith , Fulham , Putney , Wandsworth , Battersea and Chelsea . In central London ,

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