Mammoet Supports Modular Nexus Leiden Build

Mammoet has played a key role in the construction of Nexus Leiden, a 9,100m² science facility located in the Leiden Bio Science Park West in the Netherlands. To address the site’s spatial limitations, the company worked with contractor Dura Vermeer Bouw Zuid West and concrete supplier Holcon BV to assemble the building’s shell structure using prefabricated concrete and steel elements. A single 250t Kobelco CKE2500 crawler crane was positioned inside the structure to handle the lifts, with just-in-time deliveries scheduled to minimise disruption and maintain a steady workflow.

Mammoet engineers were involved from the project’s front-end engineering design stage, helping to plan the constructability and lifting sequence. Deliveries of prefabricated components from Germany were carefully timed, with trucks arriving in two-hour intervals during peak periods. The company says that the modular approach, combined with early-stage engineering input, allowed the assembly to proceed efficiently despite limited space and a demanding schedule.

“It was important that we were involved from the outset. We assessed that we would need to assemble the structure from the inside, and in stages. It was equally important for us to understand how we would organize incoming elements and ensure structural integrity during the build.” said Frank Melse, Mammoet’s Director Projects Benelux.

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