Last edited 01 Nov 2022

Flood Risk Framework

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High Speed Rail (Crewe – Manchester) Environmental Statement, Glossary, abbreviations and references, published by the Department for Transport in 2022, defines the Flood Risk Framework as:

A system devised by The Scottish Environment Protection Agency that aids decision-making in spatial planning. Areas are filtered into three categories based on their level of potential risk of flooding. The categories are:

• Little or No Risk Area: Annual probability of watercourse, tidal or coastal flooding is less than 0.1% (1 in 1000 years);

• Low to Medium Risk Area: Annual probability of watercourse, tidal or coastal flooding in the range 0.1% - 0.5% (1 in 1000 years to 1 in 200 years); and

• Medium to High Risk Area: Annual probability of watercourse, tidal or coastal flooding greater than 0.5% (1 in 200 years).’

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