Flooding - Flood Defenses and the Humble Sandbag

Flood protection is vital for any home at risk of floodingany home and at anytime.
and in this article we'll discuss the different types ofThe UK's Environment Agency produces a map of
flooding and the crucial part the humble sandbag playsareas deemed as high risk and it is vital that if you live
in flood defenses.in one of these areas you put some thought into
Flooding is becoming an increasing risk for manyproper planning to prevent flooding and to prepare for
home-owners. In England and Wales alone, nearly 5it by thinking about flood defenses and flood protection.
million households are at risk of flooding and as moreThe aim of flood defenses is to: prevent, delay and
and more homes are being built in high risk areas, thelimit the damage of water getting onto a home.
problem is expected to get worse.One of the most common and useful flood defense
Flooding is not just a problem for those living near thetools is the humble sandbag. These can be stacked
coastline or rivers either. Floods can happen anywhereinto walls to prevent water from getting in and have
and at anytime, particularly after a heavy rainfall and itbeen used for centuries in preventing flood risks. They
is important to be aware of the risks of flooding andare cheap, easy to store and provide excellent
types flood protection available. There are numerousdefense against flooding.
causes of flooding many of which can happenUnfortunately there are downsides to the sandbag.
anywhere even if you live miles from a main source ofTraditional sandbags have to be filled-up in advance of
water. The main causes of flooding are:any flooding. Unfortunately not every flood can be
River flooding - rivers can burst their banks afterpredicted and often there is not enough time to
heavy rainfall and this can lead to one of the mostprepare the sandbags in advance.
widespread types of flooding and reservoirs and lakesHowever, a new type of instant sandbag is available
can burst their banks too.that does away with the need for sand completely.
Coastal flooding - is often caused by storms but withThese instant sandbags use water, and once soaked
climate change expecting to cause rising sea-levelsfor a few minutes, an instant sandbag will fill up and act
this type of flooding could increase.exactly the same way as a traditional sand bag.
Groundwater Floods - caused by lack of drainage ofInstant sandbags are part of a arsenal of new flood
groundwater particularly in areas built on permeabledefense innovations available in the struggle against
rockflooding and we'll discuss some other new methods of
Surface and sewer water flooding - Caused byflood defense in later articles.
blocked drains and sewers, this type of flooding can hit