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Gloucestershire Floods (2007) and Management of the London Thames
After a very dry April, the summer of 2007 was one of the wettest on record. Heavy rainfall
at the end of June led to flooding in some areas in Gloucestershire, both from surface water
overloading the drainage systems and very high water levels in rivers and brooks.
On 20th July, two months' rain fell in just 14 hours
5,000 homes and businesses were flooded and many communities cut off.
Electricity was lost to 48,000 homes for two days and the whole county came close to
having no power at all.
Over half the homes in Gloucestershire and 7,500 businesses were without any mains water
for up to 12 days - and 17 days for drinking water.
During the crisis, 40 million bottles of drinking water were distributed
1,400 bowsers deployed. Around 200,000 litres of drinking water had to be delivered to
thousands of vulnerable people in their homes.
Flood water reached 7 feet in some vulnerable areas.
The estimated cost to repair the county's roads was £25 million
80% of properties were affected were overwhelmed by flash flooding
10,000 motorists were stranded on county roads, including the M5 where many people
Management/ strategies / response
5,000 door-to-door surveys of flood-affected households
12 'Community Voice' drop-in events for residents
Surveying of damaged roads, bridges and footpaths
Repairs to flood damaged roads which have been prioritised over routine maintenance.
Opening of 20 flood damaged schools on time
Inspection of 400 sites with highway drainage issues and the production of a prioritised
programme of drainage works.
Over 2,500 people were accommodated in local authority rest centres in total, many of
them commuters from the motorway and rail network.
Thames Management in Oxford
Flood hazard because...
The city of Oxford is lie lowing
The River Cherwell now floods more often than it used to in the 1970s and 1990s. This is the
result of agricultural activities
Many bridges slow down the flow of water as some debris get stuck underneath, making
less room for the water to flow.
Development on the flood plain has led to an increase in impermeable ground, meaning
there will be a larger surface run off and any flooding will cause the water to sit onto of the
ground, rather than seep through
Much of the area is covered in clay, which is often an impermeable material, meaning water
does not sink into the rocks, but sits on top.
Managing the floods
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Land Use Zoning- Areas closer to the river or on the floodplain are given the use for farming,
sports fields and allotments. This is because these features require low maintenance and are
easy to build or repair, both economically and physically.
Flood relief schemes- Flood relief channels, dredging and flood prevention schemes have
reduced the peak flood levels and the length of flood periods.…read more