Milestone for New IJmuiden Sea Lock Project

Image source: BAM

A major milestone has been achieved in the construction of the new IJmuiden sea lock, with the successful immersion of the caisson for the outer lock head into its final position, informs Royal BAM Group.

The caisson, in and out of which the lock gates will slide, is the size of an apartment building, 80 meters long, 26 meters wide and 22 meters high. Over recent months it has been immersed centimeter by centimeter to the right depth, in a controlled manner, as planned.

The caisson was sunk into the ground using remote-controlled robotic arms to remove the underlying sand. This fully automated process was monitored 24/7 using sensors, measuring instruments and cameras installed underneath the caisson. The next step will be to fill the space beneath the caisson with concrete.

In 2019, the inner lock head caisson – measuring 80 meters long, 55 meters wide and 25 meters high – will be immersed into its final position using the same method.

New sea lock IJmuiden

Work has been underway in IJmuiden since 2016 to construct the world’s largest sea lock, which will accommodate increasingly large seagoing vessels. The new lock, which will be 500 meters long, 70 meters wide and 18 meters deep, is a joint project between the Dutch Ministry of Infrastructure and Water Management, the province of Noord-Holland, the municipality of Amsterdam, Port of Amsterdam and the municipality of Velsen.

Commissioned by Rijkswaterstaat, the new sea lock is being built by contracting consortium, OpenIJ.

 

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