The diagrams below show how houses can be protected in areas which are prone to flooding. Summarise it.

The diagram illustrates the impact a stopbank can make to prevent flooding. A house without

such

protection has a higher risk of flooding.

However

,

conversely

, with

such

shielding, there might still be flooding but not high. First of all, the upper diagram shows an illustration of how a stopbank acts as a barrier to stop flooding from a nearby river. The barrier is a mound near a drain and higher than a prediction of 100-year flood height.

In addition

, we

also

need to create a floodgate beneath the blockade so that the water can be transferred back into the drain. The second illustration indicates a completely different condition where the house is at great peril with direct exposure to the overflow of water. It can be seen clearly that the flood almost drown the house with only a 300 mm freeboard. In conclusion, a safer situation can be provided by building a stopbank between the drain and the accommodation,

while

on contrary, the home has the potential of sinking without a barrier.