M4 J3-12 smart motorway

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M4 smart motorway work additional closures for this week

The motorway reopened at approximately 4.00am this morning following a big weekend of work to several bridges as part of the upgrade. Thank you for your patience while we carry out these essential works - the next weekend closure takes place from 29 November-2 December, again between junctions 6 and 8/9.

There are a few extra overnight closures that have been put in for this week, as follows:

  • The M4 westbound carriageway between junctions 3 (Hayes) and 4b (M25) will be closed overnight on Monday 18, Tuesday 19 and Wednesday 20 November. Clearly signed diversions will be in place utilising the local and strategic highway network.
  • 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 18th November 2019

    by M4 J3 to 12 Communications Team