River Tees Drainage Baisin

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River Tees Drainage Baisin

The river Tees flows from the Pennines in Cumbria, northwest England,

to the North Sea via Tees Bay. Its length is 130 km / 80 miles. Its

port, Teesport, handles in excess of 42 million tonnes of water per

year. Its main tributaries are the Lune, Balder, and Greta.

There are many factors affecting the drainage baiins of the River

Tees, many of these are human factors.

Water Barrage and Watersports: Much of the water nearing the sea is

polluted with industrial waste, sewage, and chemicals. The Tees

Barrage, which opened in 1995, enables a 16 km / 10 mile stretch of

the river to provide clean, non-tidal water. The barrage was built to

improve the river's watersports facilities by stabilising a stretch of

the river which was previously tidal. Four flood gates are operated by

hydraulic pistons making sure the river upstream stays at a constant

level.

Forestry: Much of the Tees Forest has been felled to make room for the

built up areas along the river. This decreases the amount of

interseption taking place and unnatural concrete surface speed up the

flow of runoff into the river. The areas of forest left at river side

intersept rain and slow it down, with some also entering the biomass

store when the okats absorb the water.

Water Treatment: Northumbrian Water operates the Tees raw water system

to supply major industrial users with large amounts of partially

treated water. The system is the largest of its type in Europe and is

capable of delivering up to 10m3/s (10 cubic metres per second). Water

is abstracted from the River Tees via three pumping stations.

Water supply: In the Tees Valley the wat...

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...ade keeping the ground cool, reducing evaporation. The trees and the

roots are also a physical barrier slowing the movement of water. This

all changes the amount of water entering the river and the speed at

which it enters.

Relief: The head of the valley, of which the upper portion is known as

Teesdale, has many hills, exceeding 2500 feet in height at some

points, consisting of bleak moorland. Water will flow off of these

hills into the river increasing the volume of water entering the

river. This area has little vegetation further increasing the speed

that the water enters the river. There are many areas of steep decents

and so the are area with waterfall and rapids in the rivers. This

means the water is travelling through the river at high speed and so

has little time to infiltrate in surface into the ground store.

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