The design of bridges and the watercourse themselves make flooding worse, for example a small bridge over the watercourse could trap vegetation and this then blocks the water from escaping and forces it upwards. Boscastle would be a good example. Also look at the design, is the river line by a wall, or concrete or does it suddenly get narrower causing bottlenecks.
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1 comment:
Always good to recieve a few hints from a high achieving ex-student! Thanks Will!
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