Drivers travelling on the M4 in Wales this week should prepare for overnight closures and slip road restrictions as essential maintenance work is carried out. The disruption runs from Sunday, October 18, to Sunday, October 25, affecting several junctions on one of the country's busiest motorway routes.
Traffic Wales has published details of all scheduled closures, which take place overnight between 8pm and 6am. Motorists are advised to plan their journeys in advance to avoid delays.
Eastbound closures and structural inspections
The M4 eastbound between junction 35 Pencoed and junction 34 Miskin will be closed from Monday, October 19, to Thursday, November 5, between 8pm and 6am for structural inspections.
Several eastbound offslips and onslips will also be affected. The offslip at junction 41 Pentyla/Baglan will be closed from Monday, October 19, until Saturday, October 24, between 8pm and 6am. The offslip at junction 42 Earlswood will be closed overnight from Sunday, October 18, until Tuesday, October 20, with work taking place between 8pm and 6am.
The onslip at junction 43 Llandarcy will be closed from Sunday, October 18, to Tuesday, October 20, and again overnight on Thursday, October 22, to Friday, October 23. Work will take place between 8pm and 6am each night.
Westbound closures and slip road restrictions
On the westbound carriageway, the offslip at junction 24 Coldra will be closed for road works between 8pm and 6am overnight from Sunday, October 18, to Monday, October 19.
The M4 westbound between junction 24 Coldra and junction 28 Tredegar Park will be closed overnight between Monday, October 19, and Friday, October 23, from 8pm to 6am. The offslip at junction 38 Margam will be closed between 8pm and 6am from Monday, October 19, until Saturday, October 24.
The onslip at junction 39 Groes will be closed from Monday, October 19, until Saturday, October 24, between 8pm and 6am. At junction 45 Ynysforgan, both the offslip and onslip will be closed between 8pm and 6am from Monday, October 19, to Thursday, October 22. The offslip at junction 48 Hendy will be closed between 8pm and 6am from Sunday, October 18, to Tuesday, October 20.
All closures are subject to the published overnight schedule, and drivers are encouraged to check the latest information before setting out.
