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

Geological survey paves way for SpainMorocco tunnel

NEWS

BIDDERS FOR London's $700M privately financed Thames Gateway Bridge face tight restrictions on design changes because of planning constraints. One of two indicative designs produced by consultant Halcrow will have to be adopted and developed by the successful bidder because there is no parliamentary time for a hybrid bill for the crossing which allow some flexibility to modify designs. Normal highways powers process will be used which means submitting designs for planning approval. A public inquiry will also be needed, pushing the expected start of work to 2009. The crossing is expected to open in 2013.

Halcrow originally produced four options for the new bridge, which will be constrained by the need to maintain shipping access below without affecting flight paths to nearby City Airport. It has since narrowed options to two - a triple arch structure and a concrete box girder structure.

Plans for a rail tunnel under the Strait of Gibraltar, linking Morocco and Spain, have taken a step forward with the agreement last month that a $32M geological investigation should be carried out.

The 38.4km long twin bore tunnel would be excavated between Punta Paloma on the south west coast of Spain near Tarifa, and Punta Malabata, near Tangier in Morocco.

It would lie between 100m and 300m beneath the sea bed, which is 300m below sea level.

A shorter 19km long tunnel could be achieved further east, but would involve construction under a 900m depth of water.

Construction cost is expected to exceed $3bn.

A decision on whether to go ahead with the project will be taken in 2008.

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.