The river tees

where is the river tees?

where is the river tees?

North-East England

where is the source?

Pennine Hills

where is the mouth of the river?

Middlesbrough - The North Sea

how long is the river?

137km/85 miles

what is found in the upper course

High force waterfall

Details on waterfall

river drops 20m into plunge pool below

the underlying limestone eroded faster than the dolerite (more resistant)

what is found in the middle course

Barnard castle meanders

details of the meanders

river flowing west to east over low-lying ground

lateral erosion is the dominant process in the middle course

what is found in the lower course?

Levees at Newsham

details on the levees

land now flat, area is a floodplain. repeated flooded created levees (raised banks) along the side of the river

when was the cow green reservoir built

in the 1970s

why was the cor green reservoir built

to provide water to local industries and helps will flood control

when was the tees barrage constructed

1995

why is the tees barrage kept at a high level?

to reduce risk of flooding at high tide or during a storm surge

what is flood plain zoning?

local authorities discourage building on low lying land to reduce risk of future flood damage in the town

how much did the tees barrage cost to construct

54 million

why were channels artificially straightened

the water can flow faster so risk of flooding is reduced

what is dredging?

deepening the river channel to increase the amount of water it can hold to reduce the risk of floods

example of cutting of meandner

the neck of the meander at stockon

2 social issues

people consider hard engineering strategies unsightly

despite the investments flooding still disrupts the area (Eston 2017 flooding caused travel disruptions)

a economic issue

tees barrage cost 54 million to construct

environmental issue

its believed that the cow green reservoir would damage natural habitats

why are the flood management schemes needed?

the v shaped valleys in the upper course are made out of impermeable rock, which increases run-off so river levels rise quickly.