Live incidentLane closureNational Highways
M4 westbound lane closure between J19 and J20, live incident, started Wed 7 Oct, 11:39
- Road
- M4
- Direction
- Westbound
- Junctions
- J19 to J20
- Started
- Wed 7 Oct, 11:39
- Category
- Incident
M4 eastbound entry slip road closure at J19, 1 Oct 2026
Cleared
This roadworks closure on the M4 has cleared. It started at 21:05 on Thu 1 Oct and cleared at 05:48 on Fri 2 Oct.
Last updated by National Highways at 05:01 on Saturday 3 October 2026.
Closure details and map
- Status
- Cleared
- Closure type
- Entry slip road closure
- Category
- Road Maintenance
- Road
- M4
- Direction
- Eastbound
- Junctions
- J19
- Location
- M4 J19 eastbound access
- Started
- 21:05 on Thursday 1 October 2026
- Cleared
- 05:48 on Friday 2 October 2026
- Details
- M4 eastbound Jct 19 entry slip road closure
- Source
- National Highways
- Last updated by the source
- 05:01 on Saturday 3 October 2026
Map of the M4 eastbound entry slip road closure at J19
Use the arrow keys to move the map and the plus and minus keys to zoom.
- Cleared
Other M4 closures and crash records
12 other closures are in force on the M4 right now, and 40 more are planned in the next 7 days.
The M4 accident statistics from 1979 to 2025 record 29,200 collisions on the road, 724 of them fatal.
- Active roadworksExit slip road closureNational Highways
M4 eastbound exit slip road closure at J17, active roadworks, started Wed 7 Oct, 09:30
- Road
- M4
- Direction
- Eastbound
- Junctions
- J17
- Started
- Wed 7 Oct, 09:30
- Expected to clear
- Wed 7 Oct, 15:30
- Category
- Authority Operation
- Active roadworksEntry slip road closureNational Highways
M4 westbound entry slip road closure at J17, active roadworks, started Wed 7 Oct, 09:30
- Road
- M4
- Direction
- Westbound
- Junctions
- J17
- Started
- Wed 7 Oct, 09:30
- Expected to clear
- Wed 7 Oct, 15:30
- Category
- Authority Operation
- Active roadworksExit slip road closureNational Highways
M4 westbound exit slip road closure at J17, active roadworks, started Wed 7 Oct, 09:30
- Road
- M4
- Direction
- Westbound
- Junctions
- J17
- Started
- Wed 7 Oct, 09:30
- Expected to clear
- Wed 7 Oct, 15:30
- Category
- Authority Operation
- Active roadworksRoad closureTraffic Wales
M4 road closure in both directions between J25A and J27, active roadworks, started Mon 5 Oct, 20:00
- Road
- M4
- Direction
- Both directions
- Junctions
- J25A to J27
- Area
- J25A Grove Park to J27 High Cross
- Started
- Mon 5 Oct, 20:00
- Expected to clear
- Sat 10 Oct, 06:00
- Category
- Carriageway Maintenance
- Active roadworksEntry slip road closureTraffic Wales
M4 eastbound entry slip road closure between J24 and J22, active roadworks, started Mon 5 Oct, 20:00
- Road
- M4
- Direction
- Eastbound
- Junctions
- J24 to J22
- Area
- J24 Coldra to J22 Pilning/Prince of Wales Bridge
- Started
- Mon 5 Oct, 20:00
- Expected to clear
- Fri 9 Oct, 06:00
- Category
- Surveys