National Highways’ contractors are set to begin preparations for ‘safety critical work’ to the M4 Chiswick Flyover near Brentford, which is due to last until May.
Connect Plus will be carrying out concrete repairs to the reinforced bridge piers that support the elevated section of the M4.
This ‘will keep the structure safe and extend its serviceable lifespan,’ National Highways said.
Structural repairs will take place during the week, mainly between 7:30am and 5:30pm and lane closures will be in place on the A4 Great West Road, which runs alongside and below the flyover at ground level, between Boston Manor Road and Lionel Road South, throughout the duration of the work.
Contractors will also erect scaffolding and debris netting around the piers and equipment will be on site to help monitor noise and dust levels.
A 30mph speed restriction will be in place and some pedestrian crossing points may need to be suspended for public safety, National Highways said.
The work will need some full overnight road closures at the beginning and end of the project to install and remove the required traffic management.
Between Monday 23 January and Sunday 29 January the A4 will be closed overnight (from 10pm to 5am) in both directions between the A3002 Boston Manor Road and B455 Ealing Road.
Between Monday 6 February and Sunday 12 February the A4 will be closed overnight (from 10pm to 5am) in both directions between the B455 and the junction with Clayponds Avenue and Clayponds Lane.
Work on the flyover itself will take place from next Monday (30 January) to early May, with some further overnight closures to remove the traffic management.
Traffic on the M4 will be unaffected.
