The two-week scheme involves 24-hour closures of lane one and the hard shoulder on the westbound carriageway and there will also
be two full overnight closures of the westbound carriageway between junctions 2 and 3 on Monday 10 March and Monday 24 March to install and remove the traffic management.
Highways Agency project manager Purnima Kaul said:
This work will maintain safety for road users. As well as replacing the safety barrier we will also take the opportunity to unblock and clean the kerbside drainage system.
During the work we advise road users to allow extra time for their journeys.
Work takes place from 7am to 7pm Monday to Sunday.
The total closures will be in place from 8pm to 6am when traffic will be diverted off the M50 at junction 2, and along the A417 and A449. The diversion ends at the junction of the A449 and M50 junction 4.
Members of the public should contact the Highways Agency Information Line on 0300 123 5000
Journalists should contact the Highways Agency press office on 0844 693 1448 and use the menu to speak to the most appropriate press officer