New Sea Lock brought into vision

The construction of the IJmuiden New Sea Lock is now in full swing. Construction began in January 2016 and the new lock will be available for shipping early 2022. From then on, the port of Amsterdam will be accessible 24 hours a day. Until that time, you can follow its construction in pictures and on films on this site.

Construction in context

Get a bird’s-eye view of the construction site.


What is where?

The construction of the IJmuiden New Sea Lock is well underway. Sheet pile walls, lock chamber walls, cofferdams, etc. are being raised at the construction site. 

But where are they situated? We have made an overview picture (in Dutch) to help you get a proper understanding of where these building elements can be found.

A new ‘front door’ for Amsterdam

Every day, ships with goods and raw materials such as oil, food products, jeans, cars, cocoa beans, animal feed, and fertilizers enter the port of Amsterdam. After nearly a century, however, replacement of the lock has become necessary for technical and economic reasons. In 2019, according to plan, the first ship will pass through the new lock. In this way, we can continue to be among the leading European ports.

Animatie zeesluis

Animation of the New Sea Lock

Are you curious to see how the New Sea Lock looks like? Check here for the animation of a cruise ship passing through the lock.

Screenshot afzinken deurkas Zeesluis Ijmuiden

Time-lapse of the construction

This is a time-lapse of the activities from July to September 2018. The activities pictured in this time-lapse concern the sinking operation of the lock gate chamber of the outer head. This is an important phase in the construction process of the new sea lock. The lock gate chamber - a concrete structure the size of a large building - has been built with the so-called caisson method. Now it is being sunk centimetre by centimetre into the ground by excavating (washing away) the sand underneath. This operation is carried out in a controlled manner and is being monitored by cameras installed under the floor of the lock gate chamber. The lock gate chamber's own weight will cause it to sink further and further into the ground to its predetermined final depth.


IJmuiden webcam

Watch live the arrival of ships at IJmuiden