Last edited 13 May 2021


The SuDS Manual published by CIRIA in 2015 defines a berm as: ‘A shelf or raised barrier separating two areas.’

Groynes in coastal engineering (CIRIA C793), published by CIRIA in 2020, defines a berm as: ‘A ridge located to the rear of a beach, immediately above mean high water. It is marked by a break of slope at the seaward edge.’

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