M4 J3-12 smart motorway

Get project news

Do you want to receive an email when news items are posted?

News on M4 J3-12 smart motorway

Back to news

M4 smart motorway work closure update for the week commencing 30 March 2020

Work to improve journeys by converting the M4 into a smart motorway between Junctions 3 at Hayes to Junction 12 at Theale continues this week. 24 hour narrow lanes and a 50mph speed restriction are in place for sections of this stretch of the M4. Carriageway and slip road closures are planned as follows, all fully closed overnight (traffic management will usually be rolled out from 9pm and taken off by 6am).

The Government has announced the results of the smart motorways safety audit. The programme will continue and there is an 18 point plan to improve safety. You can read the full report and a statement from the Secretary of State for Transport here: https://www.gov.uk/government/news/action-plan-announced-to-boost-smart-motorway-safety

Our March newsletter , with a full list of weekend M4 closures for 2020 is out and can be read here .

Full closures next week are as follows:

  • The M4 eastbound carriageway between junctions 11 (Reading) and 10 (Wokingham) will be closed overnight on Monday 30 March 2020. Clearly signed diversions will be in place utilising the B3270, A3290 and A3329M.
  • FULL CLOSURE NEXT WEEKEND 3-6 APRIL 2020: The M4 between junctions 5 and 6 will be closed in both directions from approximately 8pm Friday 3 April until 6am on Monday 6 April 2020 (this has been extended due to the reduced level of traffic at present) for installation of a new bridge deck. Traffic will be diverted to the A355 and the A4. Strategic diversions will also be in place in the wider region using the M25, M3 and M40.
  • There are also slip road closures booked as follows:

  • Junction 7 - the westbound exit slip will be closed overnight on 1 & 2 April.
  • Junction 10 - the westbound entry slip from the A329M northbound (slip road 2) will be closed overnight on 31 March.
  • Junction 10 - the westbound entry slip from the A329M southbound (slip road 6) will be closed overnight on 30 & 31 March.
  • Junction 10 - the westbound exit slip to the A329M northbound (slip road 8) will be closed overnight on 2 April.
  • Junction 11 - the eastbound entry slip will be closed overnight on 30 March.
  • Junction 12 - the eastbound entry slip will be closed overnight on 1, 2 & 3 April.
  • In the event of poor weather conditions or other issues out of our control, planned work may be postponed at short notice. Contingency bookings are also in place, but these are only used if previously planned work is delayed and there is no clash with other closures. If work completes on an earlier day the motorway may not close, or if work completes ahead of schedule the motorway may reopen early. Signage will be in place on the network to notify of closures and diversions. The project is continuing but all our work is under careful review in response to the Covid-19 outbreak and safety measures are in place on site to protect workers, their families and the public.

    Posted on 29th March 2020

    by M4 J3 to 12 Communications Team