Case Study: River Tees and its landforms

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25 Νοε 2013 (πριν από 3 χρόνια και 8 μήνες)

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Case Study: River Tees and its landforms

River Tees, North
East England

Description of river course (Pg 6 text book

and see your small hand
out sheet

From Cross fell to Middleton

source at Cross fell (893m). precipitation of over 2000mm per year.
due to impermeable rocks

peat bogs. Water drains out of the bogs slowly, creating streams.
Steep sided valleys
shaped) and the long profile has a steep gradient
with rapids and waterfall


From Croft to Yarm

Low land un
der 60m

above sea level
. River meanders through a wide flood plain

From Middlesbrough to the North sea

The river enters the North sea through a tidal estuary. This has
sand banks and mud flats. Much heavy industry has been built on the flat land of the

estuary and the
features have been adapted to the needs of oil refineries and shipping.

Meander at Yarm
: Lower River

One of the meanders of the Tees encloses a whole town:
the town of Yarm. 250 years ago Yarm was the most important port on the Tees. It is only 18
kilometres from the sea as the crow flies.

In the flat lower section of a river, meanders are constantly changing their position. Erosion is most
rapid on the banks of the outside bends where the water is running fastest.

Yarm is particularly prone to flooding. The most recent serious flood was in

January 1995. Since
then a new flood defence scheme costing £2.1 million has been built w

reinforced concrete walls with flood gates for access by people and vehicles.

earth embankments to contain the river.

gabions (baskets filled with stones) to

protect the walls and embankments from erosion.

High Force waterfall, Upper Teesdale


metres high. Hard rock (Whin

Sill) lies on softer rock (Limestone) beneath. The soft rock has
been worn away and the hard rock above has collapsed. This has left a gorge 700m in length.
Boulders from the collapse of the Whin Sill rock lie in the gorge.


River Tees meander