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| | River Thames - Wikipedia, the free encyclopedia |
 | | Below Teddington, the principal tributaries include the rivers Brent, Wandle, Effra, Westbourne, Fleet, Ravensbourne (the final part of which is called Deptford Creek), Lea, Darent and Ingrebourne. |
 | | Between the sea and Teddington Lock, the river forms part of the Port of London and navigation is administered by the Port of London Authority. |
 | | From Teddington Lock to the head of navigation, the navigation authority is the Environment Agency. |
| en.wikipedia.org /wiki/River_Thames (2552 words) |
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