Closure of M4 junction 12 roundabout

Published: 05 September 2024

The Bath Road/M4 junction 12 roundabout is to be closed while structural maintenance is carried out on the bridges. Each closure is to take place separately and there will be some slip road to/from the M4 closures as well.

Work will begin on Monday 16 September and continue until Saturday 30 November.

The closures are expected to be in place on week nights from 9.00pm to 6.00am. There will be a full weekend from 9.00pm on Friday 11 October to 6.00am on Monday 14 October.

There might be a further weekend closure from 9.00pm on Friday 18 October to 6.00am on Monday 21 October.

The alternative route for all eastbound journeys is via A4, A340, A339, A33, A4155, A4. Westbound vehicles will use the reverse route.

The closures will take place only as necessary and blue light access will be maintained wherever possible.

All enquiries should be directed to: Volker Laser on 0800 022 3292 and/or National Highways on 0300 123 5000.

A plan of the closure can be found on One Network's web site