Course
The Thames has a length of 346 km (215 miles). Its source (at Ordnance Survey grid reference ST 980 994) is about a mile north of the village of Kemble, near Cirencester in the Cotswolds. It then flows through Lechlade, Oxford, Abingdon, Wallingford, Reading, Henley-on-Thames, Marlow, Maidenhead, Windsor, Eton, Staines and Weybridge, before entering the Greater London area.
From the outskirts of Greater London, the river passes Syon House, Hampton Court, Kingston, Richmond (with the famous view of the Thames from Richmond Hill) and Kew before flowing through central London. In central London, the river forms one of the principal axes of the city, from the Palace of Westminster to the Tower of London. Once clear of central London, the river passes Greenwich and Dartford before entering the sea in a drowned estuary near Southend-on-Sea.
In terms of counties, the Thames rises in Gloucestershire, traditionally forming the county boundary, firstly between Gloucestershire and Wiltshire, between Berkshire on the south bank and Oxfordshire on the north, between Berkshire and Buckinghamshire, between Berkshire and Surrey, between Surrey and Middlesex, and between Essex and Kent. Before the 1974 boundary changes, the current boundary between Berkshire and Surrey was between Buckinghamshire and Surrey. The Oxfordshire - Berkshire boundary was also moved at that time.
The area to the west of London is normally called the Thames Valley, whilst east of Tower Bridge development agencies and Ministers have taken to using the term Thames Gateway.
Other information:
Recorded history
The Thames provided the major highway between London and Westminster in the 16th and 17th centuries. The clannish guild of watermen ferried Londoners from landing to landing, and tolerated no outside interference.
In the 17th and 18th centuries, during the period now referred to as the Little Ice Age, the Thames often froze over in the winter. This led to the first Frost Fair in 1607, complete with a tent city set up on the river itself and offering a number of amusements, including ice bowling. After temperatures began to rise again, starting in 1814, the river has never frozen over completely. The building of a new London Bridge in 1825 may also have been a factor; the new bridge had fewer pillars than the old and so allowed the river to flow more freely, thus preventing it from flowing slowly enough to freeze in cold winters.
By the 18th century, the Thames was one of the world's busiest waterways, as London became the centre of the vast, mercantile British Empire. During this time one of the worst river disasters in England took place on 3 September 1878 on the Thames, when the crowded pleasure boat Princess Alice collided with the Bywell Castle killing over 640.
In the 'Great Stink' of 1858, pollution in the river became so bad that sittings at the House of Commons at Westminster had to be abandoned. A concerted effort to contain the city's sewage by constructing massive sewers on the north and south river embankments followed, under the supervision of engineer Joseph Bazalgette.
The coming of rail and road transportation, and the decline of the Empire in the years following 1914, have reduced the prominence of the river. London itself is no longer a port of any note, and the Port of London has moved downstream to Tilbury. In return, the Thames has undergone a massive clean-up from the filthy days of the late 19th and early- to mid-20th centuries, and life has returned to its formerly dead waters.
In the early 1980s, a massive flood-control device, the Thames Barrier, was opened. It is closed several times a year to prevent water damage to London's low-lying areas upstream. In the late 1990s, the 12-km-long Jubilee River was built, which acts as a flood channel for the Thames around Maidenhead and Windsor
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2006-06-21 08:07:54
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answer #4
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answered by Anonymous
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