M4 junctions 6 at Slough/Windsor to 12 at Theale, Berkshire: upgrade to smart motorway
Work to improve journeys by converting the M4 into a smart motorway between Junctions 3 at Hayes and 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).
We have the following full closures booked for the week commencing 22nd April 2019 (starting Tuesday 23rd April after the Easter weekend):
The M4 eastbound carriageway between junctions 8/9 (Maidenhead) and 6 (Slough/Windsor) will be fully closed overnight on Wednesday 24th April . Clearly signed diversions will be in place utilising the westbound M4, A308M, A308 and the A332. The M4 westbound carriageway between junctions 8/9 (Maidenhead) and 10 (Wokingham) will be fully closed overnight on Saturday 27th April . Clearly signed diversions will be in place utilising the A404M, A4, A3290 and the A329M. The M4 eastbound carriageway between junctions 10 (Wokingham) and 8/9 (Maidenhead) will be fully closed overnight on Sunday 28th April . Clearly signed diversions will be in place utilising the A404M, A4, A3290 and the A329M. The M4 westbound carriageway between junctions 10 (Wokingham) and 11 (Reading) will be fully closed overnight on Sunday 28th April . Clearly signed diversions will be in place utilising the B3270, A3290 and the A329M. In addition there are a significant number of M4 entry and exit slip road closures this week as follows, with signed diversions in place. Keep an eye out for updates on the network:
Junction 7 – the westbound exit slip and eastbound entry slip will be closed overnight on 23rd and 24th April.Junction 10 – Slip 6 (westbound entry from the A329M southbound) will be closed overnight on 23rd and 24th April. Junction 10 – Slip 4 (eastbound entry from A329M southbound) will be closed overnight on 23rd April. Junction 10 – Slip 7 (eastbound exit to A329M southbound) will be closed overnight on 24th April. Junction 10 – Slip 1 (westbound exit to A329M southbound) will be closed overnight on 24th April. Junction 10 – Slip 5 (eastbound entry from A329M northbound) will be closed overnight on 25th April. Junction 12 - the eastbound exit slip will be closed overnight on 24th April. Junction 12 - the westbound entry slip will be closed overnight on 25th 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. 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.