In determining the height for the construction of the inner berm, different considerations were employed compared to those for the main dam crest height. The primary requirement for the crest was to ensure the dike would not be breached during the most severe anticipated storm. To achieve this, the crest was designed to be elevated enough so that, at most, only a single wave could reach it. The IJsselmeer side of the dam was designed with a lower factor of safety than the Wadden Sea side, as it was anticipated that even under unfavourable conditions, such as a southwest storm over the IJsselmeer with a high average water level, the waves would not exceed about 3.5 metres above Amsterdam Ordnance Datum. Consequently, the berm was constructed to a height of approximately 4 metres.
In determining the height for the construction of the inner berm different considerations were employed compared to those for the main dam crest height The primary requirement for the crest was to ensure the dike would not be breached during the most severe anticipated storm To achieve this the crest was designed to be elevated enough so that at most only a single wave could reach it The IJsselmeer side of the dam was designed with a lower factor of safety than the Wadden Sea side as it was anticipated that even under unfavourable conditions such as a southwest storm over the IJsselmeer with a high average water level the waves would not exceed about 35 metres above Amsterdam Ordnance Datum Consequently the berm was constructed to a height of approximately 4 metres