Your browser is no longer supported

For the best possible experience using our website we recommend you upgrade to a newer version or another browser.

Your browser appears to have cookies disabled. For the best experience of this website, please enable cookies in your browser

We'll assume we have your consent to use cookies, for example so you won't need to log in each time you visit our site.
Learn more

Building the new Tyne Tunnel


Bouygues must construct a 2.6km two-lane road tunnel comprising two cut and cover sections north and south of the Tyne with a central 360m long immersed tube section.

In the scheme designed by TWPTA's advisers Arup and Royal Haskoning, three 100m and one 60m long sections will be constructed in a dry dock on the north bank of the Tyne .

The concrete sections are rectangular and will measure 14m wide by 9m deep with 1.5m thick walls.

When the first two sections are complete, the dry dock will be flooded allowing them to be floated out. The process will be repeated for the second pair of sections.

The sections will then be pumped full of water and sunk into a pre-dredged channel, allowing them to be placed in a controlled manner.

They will then be connected and the tunnel de-watered.

Dredged material will be used to cover the tunnel with rock armour which will protect it from trailing ship anchors.

Have your say

You must sign in to make a comment

Please remember that the submission of any material is governed by our Terms and Conditions and by submitting material you confirm your agreement to these Terms and Conditions. Please note comments made online may also be published in the print edition of New Civil Engineer. Links may be included in your comments but HTML is not permitted.