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

Welsh government proposes new tunnel for Brynglas bottleneck

The Welsh Government yesterday launched a consultation on new plans to tackle the notorious bottleneck at Brynglas with a major online widening scheme that would include a new tunnel on the M4, near Newport in south Wales.

The new tunnel would enabling widening the two-lane (in each direction) stretch of motorway to four lanes between junctions 24 and 29 – a distance of around 15km. Works are expected to take 15 years and cost around £550M.

The existing route has been a notorious bottleneck and leaves a key section of the M4 vulnerable to major closures. Just last year a major fire in the west bore at Brynglas closed the tunnel for three days and caused severe traffic disruption.

Consultant Arup has been heavily involved in drawing up the consultation document. Submissions are invited until 6 June and the government expects to make a decision on the appropriate solution by the end of the year.

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.

Related Jobs