The "Crossing the lines" project brings the communities of Utrecht (the Netherlands) and Mortsel (Belgium) and the County of Essex (Great Britain) together to protect and redevelop defencelines in Northwest Europe in a sustainable way.

This partnership will develop the defence lines of "Nieuwe Hollandse Waterlinie" (Utrecht), the east coast of the UK (Essex) and "Vesting Antwerpen" (Mortsel).


The artillery fort at Tilbury protected London until the dawn of the 20th century.

Part of the coastal defences, Jaywick is one of the Martello towers.

Grand Celebration Event 2006
Find information regarding the Grand Celebration Event 2006 !
In the media
Here you will find publications and articles from newspapers and other sources regarding the CtL project.
Kick off Event 2004
Find all the info from the Kick off event here!
Midterm Event 2005
All information of the Midterm Event 2005 can be found here!

Leopold I commissioned to build Fort 4, and it is stil in use today.


The Fort aan de Klop is one of the oldest defensive works of the New Dutch Waterline.

Tour Tilbury fort, view the Timeline, and browse through the Object explorers!
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Fort 4's virtual timeline gives an interactive look at it's history! Or you can take a virtual tour!
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Check out the timeline of Jaywick Martello Tower, and take a guided virtual tour!
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Browse through the history of Fort aan de Klop in the virtual timeline!
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