risk of being flooded

The Diagrams Compare Two Different Methods of Defence for Homes That Are at Risk of Being Flooded

The diagrams compare two different methods of defence for homes that are at risk of being flooded. Summarize the information by selecting and reporting the main features, and make comparisons where relevant.


The diagrams compare two different methods of defence for homes that are at risk of being flooded

In the two diagrams, a comparison of two different methods is shown to prevent the houses that are in danger from floods caused by river/drain and the rainwater.

The first Picture explains the method to be adopted in the areas having a stopbank besides the river/drain, whereas the next Picture proposed a solution in the absence of a stopbank. Generally, the first situation deals with floods caused by rains, i.e. runoff water and the latter solution deals with both the rainwater and river overrun due to the absence of a bank.

The Picture explaining the flood protection with the existing stopbank suggests raising the house level above the average water level. Additionally, it is also suggested to elevate the stopbank levels as a threshold against the highest water levels observed during the past 100 years.

On the other hand, the later solution, without the safety bank’s provisions, recommends increasing the houses’ level remarkably higher than the previous case accommodating the combined higher water levels due to river overflow and rainy water considering the study based on the past century.

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