M4 J3-12 smart motorway

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M4 smart motorway work closure update for the week commencing 29 June 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).

  • THIS WEEKEND'S FULL CLOSURE, JUNCTIONS 4B TO 5: This weekend's closure between junctions 4b and 5 is going ahead as planned, starting this evening, and the M4 will reopen by 6am on 29 June 2020. Traffic will be diverted to the local and strategic highway networks over the weekend.
  • Next weekend: the M4 EASTBOUND carriageway between junctions 10 and 8/9 will be closed from approximately 8pm on Friday 3 July and reopen by 6am on Monday 6 July 2020. Traffic will be diverted to the A329M, A3290, A4 and the A404M.
  • Following weekend: the M4 WESTBOUND carriageway between junctions 8/9 and 10 will be closed from approximately 8pm on Friday 10 July and reopen by 6am on Monday 13 July 2020. Traffic will be diverted to the A404M, A4, A3290 and the A329M.
  • Our June news bulletin is out with details of our weekend closures up to the end of September, read it here.....

    Please note, there have been slight changes to the next few weekend closures since the bulletin was released:

  • Next weekend's closure (3-6 July 2020) between junctions 10 and 8/9 is now eastbound only.
  • New closure between junctions 8/9 and 10 over the weekend of 10-13 July 2020, westbound only.
  • There are the following overnight closures scheduled next week:

  • The M4 between junctions 10 (Wokingham) and 11 (Reading) will be closed overnight in BOTH DIRECTIONS on Monday 29 June 2020. Clearly signed diversions will be in place utilising the A329M, A3290 and the B3270.
  • The M4 eastbound will be closed overnight between junctions 11 (Reading) and 10 (Wokingham) on Tuesday 30 June 2020. Clearly signed diversions will be in place utilising the B3270, A3290 & A329M.
  • The M4 eastbound will be closed overnight between junctions 10 (Wokingham) and 8/9 (Maidenhead) on Wednesday 1 & Thursday 2 July 2020. Clearly signed diversions will be in place utilising the A329M, A3290, A4 & A404M.
  • Slip road / junction closures for next week are as follows:

  • Junction 10 - the westbound entry slip from the A329M southbound (slip road 6) will be closed overnight on 2 July.
  • Junction 11 - the eastbound entry slip road will be closed overnight on 1 & 2 July.
  • 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 26th June 2020

    by M4 J3 to 12 Communications Team