Work to replace the beams and waterproofing material to the bridges which carry the M4 over the B4009 Hampstead Norreys Road near Hermitage, Brocks Lane near Frilsham and Burnt Hill Road.
Overnight closures with narrow lanes and a 50mph speed restriction are in place during the scheme for your safety and that of our workforce.
To replace the beams we will need to close the M4 between junctions 12 and 13 over a number of full weekends. For information on roadworks, go to the roadworks finder.
The three local authority roads will remain open for the majority of the scheme, closing only during the erection/dismantling of the scaffolding equipment and during all weekend closures of the M4.