Since 1932, the Afsluitdijk dam has protected large parts of the Netherlands against flooding from the North Sea and the inland IJsselmeer lake. Time for a thorough renovation. The Rijkswaterstaat government agency awarded the contract to reinforce the dam and increase water discharge capacity to the Levvel B.V. combination. In the reinforcement we are using our innovative XblocPlus prefab concrete elements (called Levvel bloc for this project). The discharge system is based on the principle ‘discharge if we can, pump if we have to’. Further additions include a fish migration river and new pedestrian walkways.