500-Year Flood Event

  • Post category:Glossary

A 500-year flood event describes a flood which has a 0.2% probability of occurring

100-Year Flood Event

  • Post category:Glossary

A 100-year flood event is a flood that has a 1% probability of occurring

50-Year Flood Event

  • Post category:Glossary

A 50-year flood refers to a flood that has a 2% probability of occurring.

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