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Tributaries of the River Thames facts for kids

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The River Thames is a very important river in England. It has many smaller rivers and streams that flow into it. These are called tributaries. Think of them like smaller roads leading to a main highway!

The Thames also has backwaters and cuts. Backwaters are parts of the river that branch off and then usually rejoin the main river. Cuts are often man-made channels that help boats or control water flow. There are also other waterways that connect to the Thames, like canals, which are like water highways for boats to travel across the country.

A famous poet named Alexander Pope wrote about some of these rivers in his poem Windsor Forest:

Around his Throne the Sea-born Brothers stood,
That swell with Tributary Urns his Flood.
First the fam'd Authors of his ancient Name,
The winding Isis, and the fruitful Tame:
The Kennet swift, for silver Eels renown'd;
The Loddon slow, with verdant Alders crown'd:
Cole, whose clear Streams his flow'ry Islands lave;
And chalky Wey, that rolls a milky Wave:
The blue, transparent Vandalis appears;
The gulphy Lee his sedgy Tresses rears:
And sullen Mole, that hides his diving Flood;
And silent Darent, stain'd with Danish Blood.

Windsor Forest
(lines 335-346)
Alexander Pope

This poem shows how important these rivers have been for a long time!

The River Medway also joins the lower part of the Thames, where the river meets the sea. This area is called the Thames Estuary.

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Tributaries of the River Thames

Tributaries are rivers or streams that flow into a larger river. For the River Thames, these rivers are listed starting from the sea and moving upstream towards the source of the Thames.

Name Confluence (where it joins the Thames) Length Source (where it begins)
Ebbsfleet River Northfleet 2.4 miles (3.9 km) Springhead
Mardyke Purfleet 11 miles (18 km) Holden's Wood
River Darent Dartford 21 miles (34 km) Westerham
River Ingrebourne Rainham, Essex 27 miles (43 km) Brentwood
River Beam and/or Rom Dagenham 13 miles (21 km) Stapleford Abbots Golf Club
River Roding Creekmouth 31 miles (50 km) Molehill Green, near Dunmow
River Lea Leamouth 42 miles (68 km) Leagrave
River Ravensbourne Deptford 11 miles (18 km) Keston
River Neckinger Shad Thames 0.8 miles (1.3 km) north Southwark
River Walbrook Finsbury 0 miles (0 km) north walls of City of London
River Fleet Bazelgette's Mid and Lower Northern Interceptor Sewers (previously Blackfriars, London) 1 mile (1.6 km) Hampstead Heath
River Effra Vauxhall 0 miles (0 km) Gypsy Hill, London
River Tyburn north and south of Vauxhall Bridge 0 miles (0 km) South Hampstead
Falconbrook Battersea 0 miles (0 km) Tooting Graveney Common
River Westbourne Chelsea 0 miles (0 km) Grange Gardens, Hampstead
Counter's Creek west Chelsea/east Fulham 0 miles (0 km) Kensal Green
River Wandle Wandsworth 9 miles (14 km) Waddon
Beverley Brook Putney 9 miles (14 km) Worcester Park
Stamford Brook Hammersmith 0 miles (0 km) Acton
Bollo or Bollar Brook Chiswick 0 miles (0 km) Acton
River Brent Brentford 18 miles (29 km) Barnet
Duke of Northumberland's River Isleworth 9.3 miles (15.0 km) River Crane & River Colne
River Crane Isleworth 9 miles (14 km) Hayes, Hillingdon
Sudbrook Petersham 2 miles (3.2 km) Dann's Pond, Richmond Park
Hogsmill River Kingston upon Thames 6 miles (9.7 km) Ewell
The Rythe Thames Ditton 4.2 miles (6.8 km) north Oxshott
River Mole Molesey 50 miles (80 km) Rusper
Longford River Hampton Court Palace 12 miles (19 km) River Colne
River Ash southwest corner of Sunbury-on-Thames 6.2 miles (10.0 km) River Colne
River Wey Weybridge 53 miles (85 km) Hartley Mauditt and Upper Farringdon, Hampshire
River Bourne, Chertsey Weybridge 13.2 miles (21.2 km) Windsor Great Park, Ascot
River Colne Staines 36 miles (58 km) North Mymms
Colne Brook Hythe End, Wraysbury 9.2 miles (14.8 km) River Colne
The Cut Bray 14 miles (23 km) North Ascot
River Wye Bourne End 8.7 miles (14.0 km) West Wycombe
Hamble Brook Hambleden Marina Sourced by an aquifer in the Hambleden Valley
River Loddon Wargrave 28 miles (45 km) Basingstoke
Berry Brook Hallsmead Ait, near Shiplake 4 miles (6.4 km) street drains of South View Avenue, Caversham
River Kennet Reading 45 miles (72 km) Swallowhead spring and others near Silbury Hill
River Pang Pangbourne 14 miles (23 km) Compton
River Thame Dorchester 40 miles (64 km) Rowsham / Cheddington
River Ock Abingdon 21 miles (34 km) Cock Well, Little Coxwell
River Cherwell Oxford 40 miles (64 km) Hellidon
River Evenlode Above King's Lock 10 miles (16 km) Moreton-in-Marsh, Oxfordshire
River Windrush Newbridge 40 miles (64 km) Taddington, Gloucestershire
River Cole Above Buscot Lock 17 miles (27 km) Burderop Park, Hodson, Wiltshire
River Leach Lechlade 18 miles (29 km) Hampnett, Gloucestershire
River Coln Lechlade 30 miles (48 km) Brockhampton, Gloucestershire
River Ray, Wiltshire Cricklade 12 miles (19 km) Markham Hill, Wroughton, Wiltshire
River Key Cricklade 6.5 miles (10.5 km) West of Battle Lake, Braydon
River Churn Cricklade 16 miles (26 km) Seven Springs, Gloucestershire

Backwaters and Man-Made Cuts

These are channels that either naturally branch off the main river and rejoin it (backwaters) or are dug by people to help with navigation or water control (cuts).

Name Where it rejoins the Thames Length Where it branches off
The Creek, Sunbury Wheatley's Ait (North), Sunbury-on-Thames 0.654 miles (1.053 km) Tumbling Bay weir, east Shepperton
Desborough Cut southwest Walton-on-Thames 0.682 miles (1.098 km) northeast Weybridge
Abbey River Chertsey Lock 2 miles (3.2 km) Penton Hook Island, Thorpe
Jubilee River Black Potts Ait, Datchet 7.2 miles (11.6 km) Boulter's Lock, Taplow
Clewer Mill Stream Queen Elizabeth Bridge, Windsor 1.5 miles (2.4 km) Bush Ait, Clewer, Windsor, Berkshire
Hennerton Backwater opposite Ferry Eyot 1.25 miles (2.01 km) above Camps Puddle, by foot of Wargrave Hill
Swift Ditch Culham Bridge 1.5 miles (2.4 km) Abingdon Lock
Seacourt Stream and Hinksey Stream Kennington Railway Bridge, Oxford 6 miles (9.7 km) north Wytham
Castle Mill Stream Gasworks Bridge, Oxford 0.66 miles (1.06 km) Port Meadow, Oxford
Bulstake Stream Osney Rail Bridge, Oxford 1.7 miles (2.7 km) Four Rivers, Oxford
Sheepwash Channel Four Rivers, Oxford 0.1 miles (0.16 km) Castle Mill Stream at Isis Lock
Kingsbridge Brook/ Wolvercote Mill Stream above Godstow Lock and weir 1.3 miles (2.1 km) Oxey Mead, south Yarnton, Oxfordshire

Canals and Other Connected Waterways

These are waterways that link to the River Thames, often allowing boats to travel to other parts of the country.

Name Where it connects to the Thames Length Destination
Regent's Canal Limehouse Basin south exit Little Venice junction with Paddington Arm of Grand Union Canal
Lee Navigation, via lower River Lea Bow, London Hertford Castle Weir, Hertford, Hertfordshire
Grand Union Canal via lower River Brent Brentford Birmingham
Wey and Godalming Navigations via lower River Wey Weybridge 20 miles (32 km) Godalming, Surrey
Maidenhead Waterways Bray (Not currently navigable by boats)
Kennet and Avon Canal via River Kennet Reading 87 miles (140 km) Bristol and the Atlantic Ocean
Wilts & Berks Canal Abingdon 52 miles (84 km) Kennet and Avon Canal at Semington (being restored)
Oxford Canal via Sheepwash Channel, Oxford
via Dukes Cut
Oxford
King's Lock
78 miles (126 km) Coventry, Warwickshire and the Grand Union Canal
Thames and Severn Canal via River Coln Lechlade Stroud, Gloucestershire and the Severn valley (being restored)
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