M4 J3-12 smart motorway

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M4 smart motorway work closure update for the week commencing 1st July 2019

M4 junctions 7 at Slough West to 10 at Wokingham, Berkshire: upgrade to smart motorway

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 between approximately 10pm and 5am (traffic management will usually be rolled out from 9pm and taken off by 6am).

Full closures booked for the week commencing Monday 1st July are as follows:

  • The M4 westbound carriageway between junctions 8/9 (Maidenhead) and 10 (Wokingham) will be closed overnight on Monday 1st and Tuesday 2nd July. Clearly signed diversions will be in place utilising the A404M, A4, A3290 and A329M. Contingency bookings are in place on Wednesday 3rd and Thursday 4th July.
  • The M4 eastbound carriageway between junctions 10 (Wokingham) and 8/9 (Maidenhead) will be closed overnight on Wednesday 3rd and Thursday 4th July. Clearly signed diversions will be in place utilising the A329M, A3290, A4 and A404M.
  • There are also slip road closures booked as follows:

  • Junction 7 – the westbound exit slip will be closed overnight on 1st July. A contingency booking is in place for 2nd 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.

    Posted on 28th June 2019

    by M4 J3 to 12 Communications Team