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How can a levee help prevent flooding

User Ben Hamill
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2 Answers

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The main purpose of an artificial levee is to prevent flooding of the adjoining countryside; ... Broad at the base, they taper to a level top, where temporary embankments or sandbags can be placed.
User Yaron Idan
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it prevents flooding by not letting the water go up the wall so it cant get into towns or near cities
User Pedrobern
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