On the IJ side of Amsterdam CS station, a bicycle shed is being built with space for 4,000 bicycles under water. This will create a beautiful view of the IJ, and about 6,000 m2 of surface area on which to walk: the IJboulevard. Contractor Van Hattum en Blankevoort is responsible for the entire project, and to guarantee the successful transport and installation of three large caissons through the water, they called in specialist Strukton Immersion Projects (SImP).

SImP will transport the caissons by tugboats from Westpoort to the Ruiterkade behind Central Station, and install the elements with extreme precision on the foundation piles. In this way, the caissons form the framework of the entire bicycle shed. With its years of experience, Strukton Immersion Projects (SImP) is a worldwide specialist in floating, transporting and sinking tunnel elements and caissons. 
simp IJBC
The floating, transport and mooring of the elements in the Port of Amsterdam took place last week and went smoothly. The final phase for SImP will take place at the end of November and will involve the transport, installation and immersion of the elements on site. For Strukton Immersion Projects, the waters around Amsterdam Central Station are not unfamiliar territory; the company previously carried out the immersion of the metro tunnels for the North/South Line. By making use of its years of experience, the in-house expertise and the cooperation with GEOCON regarding the immersion system, SImP also manages to successfully complete this unique project.

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