Overnight works cause M4 lane closures

Starting yesterday (Monday) the Highways Agency have begun to replace the existing road following investigations which found the existing studs to be in poor condition.
The work will be carried out between 9pm and 6am.
During these hours there will be varied overnight lane closures.
The Highway Agency apologised in advance for any disturbance or inconvenience caused by the works
For more information contact the Highways Agency Information Line on 0300 123 5000 or email ha_info@highways.gsi.gov.uk.