The bridge edge beam and parapets will be replaced and new safety barriers will be installed on its approach over 13 weeks during which time Ash Flats Lane will remain closed to all traffic 24 hours a day.
Highways Agency project manager Colin Jackson said:
Carrying out this work will improve the longevity of the bridge for the remainder of its life and improve safety for road users and pedestrians.
Due to the nature of the work there will be some disruption to road users, residents and local businesses, including increased noise, but we will do everything we can to keep this to a minimum.
The work will be carried out using a scaffold system which will be installed and removed during lane closures on the M6 northbound and southbound. Traffic will run on either the hard shoulder or lane 3 only, but both carriageways will not be restricted at the same time. The dates and times for these closures will be confirmed nearer the time.
When hard shoulder running is in use on the northbound carriageway the junction 13 northbound slip road will be closed and traffic will be diverted from junction 13 to the A449, A34 and A5103 to rejoin the motorway at junction 14.
During the Ash Flats Lane closures local traffic will be diverted via Barn Bank Lane, Hyde Lea Bank and Chase View Lane. Pedestrian access will be maintained during the work.
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