M4 road closures and roadworks to hit drivers in Wales this weekThere are closures along the M4 expected this weekView Image (Image: John Myers)Road closures and disruptions could have an impact on your journey this week, especially if you are travelling on Wales' busiest road - the M4. ‌We've put together a list of all the road closures and disruption on the M4 you should be aware of. On the M4 in Bridgend, there are closures due to roadworks. The M4 westbound junction 39 Groes' onslip will be closed due to roadworks and diversions in place until 6am on Monday, October 6. In Newport, the M4 westbound between junction 24 Coldra to junction 26 Malpas will see a road closed due to roadworks, with diversions in place.