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Sunday, 28 July 2013

How well is York protected from flooding?

How well is York protected from flooding?

There are many ways to prevent floods. Such as :-
The Foss Barrier
Suice Gates
Flood walls
Barriers
Flood Gates

The Foss barrier


Was developed to isolate the Foss and the Ouse
Was build to reduce flood risk
Takes about 4 minutes for the barrier to descend from its resting horizontal position to the vertical
Is situated near to the confluence of the Ouse and the Foss
Sluice gates



 Used to control the water level and gradually release the excess water back into the River Ouse
Is typically made of wood or metal
Regulates and changes the water channel

Flood Wall


Primarily vertical artificial barrier designed to temporarily contain the waters of a river or waterway
Lots of sandbags stacked on each other is also a flood wall which is very effective

Barriers




Is also called surge barrier or storm surge barrier
It prevents surge storms and spring tide from flooding into the protected area behind the barrier

Flood gates



Are adjustable gates used to control the water flow in flood barriers
They can stop the water flow entirely as part of levee or surge storm barrier
Are many varieties of flood gates such as: Bulkhead gates, Hinged crest gates, etc.


Group 4
Group members:-
 Tan Wey Shern
 Michael
 Arif 
Shao Long

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