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Author Question: How often will a flood of a 20-year magnitude occur? What will be an ideal ... (Read 46 times)

joblessjake

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on: Jul 15, 2018
How often will a flood of a 20-year magnitude occur? What will be an ideal response?

Question 2

What is a 20-year flood? What will be an ideal response?


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macagnavarro

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Reply #1 on: Jul 15, 2018
Answer to Question 1

Over time, a flood of that magnitude will occur every 20 years. However, two 20-year floods can
occur the same year, or none can occur for 50 years.



Answer to Question 2

Based on records of stream behavior through time, agencies determine how often a flood of a certain
size is likely to happen. For a 20-year flood, a flood of that magnitude is predicted to happen about
once every 20 years.



joblessjake

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Reply 2 on: Jul 15, 2018
Thanks for the timely response, appreciate it

phuda

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Reply 3 on: Yesterday
Excellent

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